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新学术词表(A New Academic Vocabulary List)

Applied Linguistics 2013:1–24?Oxford University Press 2013

doi:10.1093/applin/amt015

A New Academic Vocabulary List

*DEE GARDNER and MARK DAVIES

Department of Linguistics and English Language,Brigham Young University *E-mail:dee_gardner@https://www.sodocs.net/doc/118834688.html,

This article presents our new Academic Vocabulary List (AVL),derived from a 120-million-word academic subcorpus of the 425-million-word Corpus of Contemporary American English (COCA;Davies 2012).We first explore reasons why a new academic core list is warranted,and why such a list is still needed in English language education.We also provide a detailed description of the large academic corpus from which the AVL was derived,as well as the robust fre-quency and dispersion statistics used to identify the AVL.Our concluding case studies show that the AVL discriminates between academic and other materials,and that it covers $14%of academic materials in both COCA (120million+words)and the British National Corpus (33million+words).The article con-cludes with a discussion of how the AVL can be used in settings where academic English is the focus of instruction.In this discussion,we introduce a new web-based interface that can be used to learn AVL words,and to identify and interact with AVL words in any text entered in the search window.

1.ACADEMIC VOCABULARY KNOWLEDGE

Academic vocabulary knowledge is recognized as an indispensable component of academic reading abilities (Vacca and Vacca 1996;Corson 1997;Biemiller 1999;Nagy and Townsend 2012),which,in turn,have been directly linked to academic success,economic opportunity,and societal well-being (Goldenberg 2008;Ippolito et al .2008;Jacobs 2008).This central role of academic vocabu-lary in school success is true for both native and non-native speakers of English,and at all grade levels,including primary (Chall 1996;Biemiller 2010),middle-school (Townsend and Collins 2009),secondary (Vacca and Vacca 1996),and higher education (Schmitt et al .2011).In fact,control of academic vocabulary,or the lack thereof,may be the single most important discriminator in the ‘gate-keeping’tests of education:LNAT,UKCAT,HAT,BMAT,ELAT (in Great Britain),SAT,ACT,GMAT,LSAT,GRE,MCAT (in the USA and Canada),STAT,UMAT,GAT,GAMSAT (in Australia and New Zealand),TOEFL,Michigan (for non-native English speakers),and many others.Insufficient academic vocabulary knowledge has also been strongly associated with the oft-cited ‘gap’in academic achievement that exists between certain groups of students—primarily the economically disad-vantaged and English language learners—and their grade-level peers (Hart and Risley 1995;Chall 1996;Hiebert and Lubliner 2008;Neuman 2008;Biemiller 2010;Lesaux et al .2010;Townsend et al .2012).

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Acknowledgement by educators and language experts of such high-stakes academic needs in primary,secondary,and higher education has led to a pro-liferation of books and articles about the vocabulary of schooling—what its characteristics are,why it is a problem for learners,how it should be taught,and so forth (e.g.Beck et al.2002;Graves 2006;Nation 2008;Zimmerman 2009;Bauman and Graves 2010;Biemiller 2010;Carter 2012;Nagy and Townsend 2012;Gardner 2013).Almost without exception,experts are calling for more explicit instruction of academic vocabulary,including more focused lists of ‘core’academic vocabulary (our current study),as well as lists specific to certain disciplines of education (e.g.history,science,philosophy,political science).Given the size of the academic vocabulary task—for example,average high school graduates know 75,000words (Snow and Kim 2007)—pedagogical word lists will continue to be important in academic settings.Such lists are useful in establishing vocabulary learning goals,assessing vocabulary know-ledge and growth,analyzing text difficulty and richness,creating and modify-ing reading materials,designing vocabulary learning tools,determining the vocabulary components of academic curricula,and fulfilling many other cru-cial academic needs (cf.Nation and Webb 2011).Because so much is currently based on pedagogical word lists,it is crucial that the words in any academic list be truly representative of contemporary academic language,and that they be identified using sound methodological principles—which brings us to our pre-sent study involving a new Academic Vocabulary List (AVL).

2.THE NEED FOR A NEW AVL

During the 1970s,pioneering scholars in the area of vocabulary produced several lists of general academic words based on various small corpora of aca-demic materials,primarily consisting of textbooks (Campion and Elley 1971;Praninskas 1972;Lynn 1973;Ghadessy 1979).Because of limited computing power at the time,these lists were compiled by hand.Some were based on basic frequency and range criteria (Campion and Elley 1971;Praninskas 1972),while others were based on student annotations of words they did not under-stand in their textbooks (Lynn 1973;Ghadessy 1979).

In an attempt to produce a more robust AVL,Xue and Nation (1984)combined all four of the lists indicated above into one University Word List (UWL).This list was widely used for >15years,gaining considerable traction in language education and research by the fact that it was associated with early versions of the popular Vocabulary Profile and Range computer programs (Nation and Heatley 1994).These user-friendly programs were produced and freely distributed by Nation and his colleagues.However,the need for a more representative academic list was expressed by Coxhead (2000)in a seminal article describing her Academic Word List (AWL):

...as an amalgam of the four different studies,it [the UWL]lacked consistent selection principles and had many of the weaknesses of

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the prior work.The corpora on which the studies were based were small and did not contain a wide and balanced range of topics.(p.214).

Because of its strengths when compared with earlier lists,Coxhead’s AWL became the new standard and has served well as a vocabulary workhorse in English language education for over a decade (Coxhead 2011).Recently,the AWL has also received a great deal of attention in primary and secondary edu-cation,particularly in the USA (e.g.Hiebert and Lubliner 2008;Baumann and Graves 2010;Nagy and Townsend 2012),where concern continues regarding the widening gap between high and low academic achievers.However,all of this interest in the AWL has also resulted in more careful scrutiny of the meth-odology behind the list,with several concerns being consistently pointed out in the literature.We will briefly address the two that appear to be most problem-atic:the use of word families to determine word frequencies,and the relation-ship of the AWL with the General Service List (GSL;West 1953).

2.1Word families used for initial AWL counts

The AWL was determined by using word families,with a word family being defined as a stem (headword)plus all inflections and transparent derivations containing that stem (Coxhead 2000).For example,the word family react contains the following members:

react (headword)reaction reactive reacted reactions reactivate reacts reactionaries reactivation reacting

reactionary

reactor reactors

The choice to base text coverage on word families has been criticized on several levels.First,members of an extensive word family like react may not share the same core meaning (c.f.Nagy and Townsend 2012).Consider,for example,the differences in primary meanings between react (respond),reactionary (strongly opposed to social or political change),reactivation (to make some-thing happen again),and reactor (a device or apparatus).These meaning dif-ferences are accentuated further as members of word families cross over the various academic disciplines (Hyland and Tse 2007).

Many of the meaning problems are caused by the fact that ‘word family’does not consider grammatical parts of speech (e.g.nouns,verbs,adjectives,adverbs),as we can see when we analyze a typical AWL word family like proceed .We have added the parts of speech for discussion purposes.

proceed (verb),proceeds (verb or noun?),procedural (adjective),procedure (noun),procedures (noun),proceeded (verb),proceeding (verb),proceedings (noun).

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Without grammatical identification,the verb proceeds (meaning continues ,and pronounced with stress on the second syllable)and the noun proceeds (mean-ing profits ,and pronounced with stress on the first syllable)would be counted as being in the same word family.Many such inaccuracies could be eliminated by counting lemmas (words with a common stem,related by inflection only,and coming from the same part of speech).

Using lemmas would also take care of three additional problems with the proceed family above:(i)the noun proceedings (meaning records or minutes )would be correctly counted on its own,(ii)the noun procedure (meaning technique )and its inflected plural form,procedures ,would be correctly grouped and counted together on their own;and (iii)the adjective procedural (mean-ing technical or routine )would be correctly counted on its own.However,in a word-family approach,all of these word forms (with their variant meanings and grammatical functions)would be counted together as a single word family.Another major concern with counting word families instead of lemmas to produce pedagogical word lists is that knowledge of derivational word rela-tionships comes much later than knowledge of inflectional word relationships for most school-aged children and second language adults (see Gardner 2007,for review).In other words,‘knowledge of morphologically complex words such as derived nominals [nouns]and derived adjectives is a late linguistic attainment’(Nippold and Sun 2008:365).Furthermore,numerous studies have shown that the skill of morphological analysis is largely dependent on learners’existing vocabulary knowledge in the first place—a condition that does not favour those most in need of vocabulary help (see Nagy 2007,for review).In short,it is also clear from these learning perspectives that lemmas (inflectional relationships only)should be preferred to word families (inflec-tional and derivational relationships)in determining pedagogical word lists,especially if those lists are intended to be used by learners at less than advanced English proficiency (cf.Schmitt and Zimmerman 2002).

2.2Relationship of AWL to GSL

The AWL was built on top of the GSL (West 1953),with the assumption that the GSL contains words of more general high frequency than the AWL (Coxhead 2000;Nation 2001).Several recent articles have questioned this methodology on the grounds that the GSL is an old list (based on a corpus from the early 1900s),and that the AWL actually contains many words in the highest-frequency lists of the British National Corpus (BNC;Nation 2004;

Hanciog

?lu et al .2008;Nation 2008;Cobb 2010;Neufeld et al.2011;Schmitt and Schmitt 2012).

In our own analysis,we found the following distribution of AWL families in the top 4,000lemmas of a recently published frequency dictionary (Davies and Gardner 2010),which is based on The Corpus of Contemporary American English (COCA;Davies 2012).

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Table 1indicates that 451of the 570AWL word families (79%)are repre-sented in the top 4,000lemmas of COCA,with 236(Bands 1and 2)of the 570(41%)actually being in the top 2,000lemmas of COCA.It is important to remember that these COCA lemma groupings (inflections only)are not nearly as extensive as word family groupings (inflections plus derivations),thus making the overlap even more noteworthy.These findings with COCA (American English),along with the findings of the BNC studies cited in the first paragraph of this section (British English),provide strong evidence that (i)the AWL is largely a subset of the high-frequency words of English and should therefore not be thought of as an appendage to the GSL,and (ii)the GSL,as a whole,is no longer an accurate reflection of high-frequency English.Regarding the first point,we draw attention to the fact that the AWL produces good coverage of academic materials precisely because it does contain so many high-frequency words.We have no problem with this fact,only with the way that the GSL–AWL relationship has been explained for purposes of instruc-tional vocabulary sequencing and vocabulary-coverage research in academic contexts.

The counter-side of this problem is that there are many high-frequency academic words in the GSL that were not considered in the AWL (Nagy and Townsend 2012;Neufeld et al.2011).For instance,words like company ,interest ,business ,market ,account ,capital ,exchange ,and rate all occur in the GSL and were therefore not considered in the AWL counts,even though such words have major academic meanings.In short,because the GSL words were excluded from the AWL analysis,there is no easy way to separate the high-frequency academic words in the GSL from the high-frequency words that tend to be important in other areas of focus.These include:(i)word families that are common in fiction,but not in academic text (e.g.bed ,cup ,door ,eye ,floor ,hair ,hang ,laugh ,leg ,morning ,nice ,night ,pretty ,pull ,room ,shake ,sit ,smile ,window );(ii)word families that occur much more often in magazines than in academic text (e.g.baby ,big ,car ,cook ,cup ,dog ,fun ,glass ,heat ,hot ,lot ,minute ,pick ,ride ,roll ,shop ,stick ,tonight );and (iii)word families that occur much more often in newspapers than in academic text (beat ,big ,finish ,game ,gun ,hit ,night ,park ,police ,run ,sale ,season ,shoot ,stock ,street ,throw ,

Table 1:AWL word families in the highest frequency bands of COCA

COCA frequency bands

COCA lemma ranks

Number of AWL word families 11–1,0008121,001–2,00015532,001–3,0001374

3,001–4,00078Total

451

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week ,win ).We could make similar lists for other non-academic genres,and there are hundreds of such non-academic word families in the GSL.As a pre-paratory stage for focused academic vocabulary training,sifting through such a list of general English vocabulary (reflecting many genres of English,not just academic)is simply inefficient.

3.IS THERE A ‘CORE’ACADEMIC VOCABULARY?

It is important to note that some experts have begun to question whether a core academic list such as the AWL or our proposed list is a viable notion at all.No one seems to dispute the fact that discipline-specific (technical)words are essential to academic understanding,but the value of identifying core aca-demic words that provide useful coverage across a range of different academic disciplines has been questioned on the grounds that such words may change meanings when they cross those disciplines (Hyland and Tse 2007),and that a list of such words may serve no useful purpose in distinguishing between general high-frequency words and academic high-frequency words

(Hanciog

?lu et al .2008;Neufeld et al .2011).In our view,the first criticism involving meaning-variation could be applied to any high-frequency list of English that is based on forms of words,and on different disciplines of the language (Gardner 2007).In fact,the more general the high-frequency list,the more problems there will be with word-meaning variation because the highest frequency content words of English are the most polysemous (Ravin and Leacock 2000).The question is,until we develop a highly accurate computer program for tagging lexemes in electronic text (word forms and their distinct meanings),should we throw out generalized word lists altogether?From our perspective,the answer to this question is ‘no’.Any well-conceived list of high-coverage words brings some order to what otherwise would be vocabulary chaos (Where do we start?What can our learners focus on now,next,etc.?).Until we have an accurate lexeme tagger,we can min-imize to some degree the meaning problems by counting lemmas instead of word families,by teaching learners how to deal with multiple meanings,and by providing useful application tools for words on our lists.

Regarding the second issue of no useful distinction between academic and general high-frequency words,we would counter with three points.First,recent research suggests that general academic vocabulary knowledge does make a significant additional contribution to academic achievement (Townsend et al .2012).Secondly,we are not bound in our methodology by any preconceived notion of one list being built on top of another,or that an academic list should somehow follow a general high-frequency list,as was the case with Coxhead’s AWL,nor are we concerned with the fact that many core academic words may appear in the highest frequency lists of the BNC,COCA,or any other large corpus of English—in fact,we fully expect it.Finally,it is crucial to identify a statistically viable list of core academic words that can be focused on in academic training and research,rather than losing sight of such

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words in a new general high-frequency list,or what some have termed ‘a face-lifted GSL’(Eldridge 2008:111).

Major proponents of this concept have recently proposed a new single list for

academic settings—the Billurog

?lu–Neufeld List (BNL ;Neufeld and Billurog ?lu 2005;Hanciog

?lu et al .2008)—which is accessible on Compleat Lexical Tutor (Cobb 2012),and has been adapted on the same site for word-sorting applica-tions.In short,the BNL is an amalgam of several different lists,which we

summarize here,based on an article by Hanciog ?lu et al .(2008:466):1

The GSL word families 2The AWL word families

3The first 2,000words of the Brown Corpus

4The first 5,000words of the BNC (presumably lemmas,but unclear)5The 1995Bauman revision of the GSL

6The Longman Wordwise commonly used words 7The

Longman Defining Vocabulary

Key to the BNL concept is that the combining and filtering of several estab-lished lists should result in a new general list that is less prone to the problems associated with any of the lists individually,and that nearly all of the AWL words are simply ‘absorbed’(p.466)into the new list,essentially eliminating any need to distinguish between a GSL and an AWL.

While we acknowledge the effort to describe the true place of the AWL in terms of its relationship to general high-frequency words,we do not view the amalgamated BNL as the answer for academic settings because it takes us back to the notion of a general list only,in which core academic words are stirred back into the same old polysemous word soup,where 2,000or 3,000general high-frequency word families could actually mean something along the lines of 20,000–50,000lexemes (words with their variant meanings)—numbers that would discourage even the most ambitious learners and teachers in academic settings.

We also believe that the healthy moves toward more specialized AWLs (Hyland and Tse 2007)and the identification of ‘general English words that have specific subject meanings’(Eldridge et al .2010:88)will first require a better understanding of what is common or core before we can determine what is specialized or specific.Again,if the goal is academic English,the stat-istics can and do point to a narrower list of core academic words that can be focused on by learners,teachers,and researchers.

One final concern with the BNL approach for academic applications is that the only BNL sublist with direct ties to an ‘academic’corpus is the AWL.The rest of the sublists were derived from general corpora.In fact,we are puzzled why the BNL developers (and Coxhead as well)did not take advantage of the readily available academic subcorpus of the BNC,consisting of roughly 16million words (plus many more potential academic sources in the technical magazines of the BNC).Because of the relative non-academic focus of the BNL,the six BNL frequency bands will likely not match the frequency

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distributions of an actual ‘academic’corpus,and thus be less informative than is needed for focused academic purposes.Our preliminary analyses support this assertion.

4.KEY CONSIDERATIONS FOR A NEW AVL

Based on our review of the literature and our own research,we believe that a new list of academic core words must consist of the following characteristics:

1The new list must initially be determined by using lemmas,not word families.Subsequent groupings of the list into families may be warranted for certain instructional and research purposes.

2The new list must be based on a large and representative corpus of aca-demic English,covering many important academic disciplines.

3The new list must be statistically derived (using both frequency and dis-persion statistics)from a large and balanced corpus consisting of both academic and non-academic materials.The corpus must be large enough and the statistics powerful enough to be able to separate academic core words (those that appear in the vast majority of the various academic disciplines)from general high-frequency words (those that appear with roughly equal and high frequency across all major registers of the larger corpus,including the academic register),as well as from academic tech-nical words (those that appear in a narrow range of academic disciplines).4The academic materials in the larger corpus,as well as the non-academic materials to which it will be compared,must represent contemporary English,not dated materials from 20to 100years ago.Otherwise,the validity of the new list could be questioned.

5The new list must be tested against both academic and non-academic corpora,or corpus-derived lists,to determine its validity and reliability as a list of core academic words.

5.METHODOLOGY

In this section,we will first discuss the corpus that was used as the basis of our AVL.We will then discuss how we created the vocabulary list based on the frequency data from the corpus,paying special attention to the different cri-teria that were used to define ‘core’academic words.

5.1Creating the academic corpus

Our academic corpus is both significantly larger and more recent than the corpus that was used for the AWL (Coxhead 2000).The AWL is composed of 3.5million words of academic texts,with the majority being published in New Zealand.It is nearly evenly divided into four disciplines—arts,commerce,

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law,and science—with roughly 875,000words in each discipline.All of the texts are from the early 1960s to the late 1990s.

Our corpus contains >120million words of academic texts,taken from the 425-million-word COCA (https://www.sodocs.net/doc/118834688.html,/coca).In other words,our corpus is nearly 35times larger than the AWL corpus.The academic portion of our corpus is also 20%larger than the entire BNC.All texts in our academic corpus were published in the USA,and are representative of written academic materials.Like the corpus used for the AWL,there are no samples of spoken academic language in our corpus,and we acknowledge that some variation in our findings could result from this limitation.

The corpus is composed of the nine disciplines displayed in Table 2.As indicated,85million of the 120million words come from academic journals.Originally,this was the entire academic corpus for our vocabulary list.However,we later decided to ‘soften’the journal-heavy corpus by adding $31.5million words from academically oriented magazines for all disciplines except Humanities and Education,where there are few topic-specific maga-zines.Finally,we added roughly 7.5million words from the finance sections of newspapers to augment the ‘Business and Finance’discipline.This was the only discipline that included texts from newspapers,and they were added because of the difficulty of efficiently and accurately retrieving text from for-mula-and table-laden academic journals dealing with topics such as eco-nomics and finance.

As part of COCA,the 120-million-word academic corpus was already tagged for grammatical parts of speech (e.g.nouns,verbs,adjective,adverbs)by the CLAWS 7tagger from Lancaster University.This allowed us to count lemmas instead of word families,bringing us much closer to an accurate assessment of word forms,functions,and meanings.For instance,we could differentiate and count the 28different forms of the word family use (https://www.sodocs.net/doc/118834688.html,e ,uses ,using ,used ,reuse ,useless ,usability ),distinguishing between such lemmas as the verb used in he used a rake and the adjective used in they bought a used car .With the academic corpus established and the lemmatization in place,we were prepared to create a list of core academic words.

5.2Creating the AVL

The goal was to create a core academic list composed of words like those shown in the middle section of Table 3.To do this,we excluded general high-frequency words like those on the left-hand side of the table,as well as discipline-specific (technical)academic words like those on the right-hand side of the table.

The following four criteria were used to distinguish the academic core:1.Ratio.To eliminate general high-frequency words from our list (e.g.way ,take ,good ,never ),we specified that the frequency of the word (lemma)must be at least 50%higher in our academic corpus than in the non-academic portion of COCA (per million words).Our academic corpus is composed of 120million

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T a b l e 2:C O C A a c a d e m i c c o r p u s

D i s c i p l i n e s T o t a l s i z e

J o u r n a l s /M a g a z i n e s

R e p r e s e n t a t i v e t i t l e s

E d u c a t i o n 8,030,324J :8,030,324

J o u r n a l s :E d u c a t i o n ,J I n s t r u c t i o n a l P s y c h o l o g y ,R o e p e r R e v i e w ,C o m m u n i t y C o l l e g e R e v i e w ;M a g a z i n e s :(n o n e )

H u m a n i t i e s 11,111,225J :11,111,225

J o u r n a l s :M u s i c E d u c a t o r s J o u r n a l ,A f r i c a n A r t s ,S t y l e ,A r t B u l l e t i n ,H i s p a n i c R e v i e w ,S y m p o s i u m ;M a g a z i n e s :(n o n e )

H i s t o r y 14,289,007

J :11,792,026M :2,496,981

J o u r n a l s :F o r e i g n A f f a i r s ,A m e r i c a n S t u d i e s I n t e r n a t i o n a l ,J A m e r i c a n E t h n i c H i s t o r y ;M a g a z i n e s :A m e r i c a n H e r i t a g e ,M i l i t a r y H i s t o r y ,H i s t o r y T o d a y

S o c i a l s c i e n c e 16,720,729

J :15,782,359M :938,370

J o u r n a l s :A n t h r o p o l o g i c a l Q u a r t e r l y ,G e o g r a p h i c a l R e v i e w ,A d o l e s c e n c e ,E t h n o l o g y ;M a g a z i n e s :N a t i o n a l G e o g r a p h i c ,A m e r i c a s

P h i l o s o p h y ,r e l i g i o n ,p s y c h o l o g y

12,463,471

J :6,659,684M :5,803,787

J o u r n a l s :T h e o l o g i c a l S t u d i e s ,H u m a n i s t ,C u r r e n t P s y c h o l o g y ,C h u r c h H i s t o r y ,J P s y c h o l o g y ;M a g a z i n e s :P s y c h o l o g y T o d a y ,C h r i s t i a n C e n t u r y ,U .S .C a t h o l i c

L a w a n d p o l i t i c a l s c i e n c e

12,154,568

J :8,514,782M :3,639,786

J o u r n a l s :A B A J o u r n a l ,P e r s p e c t i v e s o n P o l i t i c a l S c i e n c e ,H a r v a r d J o f L a w &P u b l i c P o l i c y ,M i c h i g a n L a w R e v i e w ;M a g a z i n e s :A m e r i c a n S p e c t a t o r ,N a t i o n a l R e v i e w ,N e w R e p u b l i c

S c i e n c e a n d t e c h n o l o g y 22,777,656

J :13,363,151M :9,414,505

J o u r n a l s :B i o s c i e n c e ,E n v i r o n m e n t ,M e c h a n i c a l E n g i n e e r i n g ,P h y s i c s T o d a y ,P S A J o u r n a l ;M a g a z i n e s :S c i e n c e N e w s ,A s t r o n o m y ,T e c h n o l o g y R e v i e w

M e d i c i n e a n d h e a l t h 9,660,630

J :5,714,044M :3,946,586

J o u r n a l s :J E n v i r o n m e n t a l H e a l t h ,O r t h o p a e d i c N u r s i n g ,A m e r i c a n J P u b l i c H e a l t h ;M a g a z i n e s :P r e v e n t i o n ,M e n ’s H e a l t h ,T o t a l H e a l t h

B u s i n e s s a n d f i n a n c e 12,824,831

M :5,256,801N :7,568,030

J o u r n a l s :(n o n e );M a g a z i n e s :F o r b e s ,M o n e y ,F o r t u n e ,I n c .,C h a n g i n g T i m e s .N e w s p a p e r s :‘f i n a n c e ’s e c t i o n .

T o t a l 120,032,441A c a d e m i c j o u r n a l s :84,914,694M a g a z i n e s :31,496,816(N e w s p a p e r s :7,568,030:B u s i n e s s a n d f i n a n c e o n l y )

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words,while the other 305million COCA words are non-academic (e.g.fiction,popular magazines).Therefore,$28%of COCA is academic (120million/425million).Setting the minimum word-selection ratio for aca-demic at 1.50(50%more)allowed us to find words (lemmas)that occurred at least 42%of the time in academic,which is 50%more than expected (28%‘expected’?1.5=42%).

There is nothing particularly special about the 1.5Ratio,as there is no com-monly accepted value for this measure.We performed extensive experimen-tation with values as high as 2.0and as low as 1.2,and simply observed which words entered into and left the academic core list as we adjusted the values.At too high of a figure (e.g.2.0)we would lose words like system ,political ,create ,require ,and rate ,all of which have a ratio between 1.5and 2.0,and which we would argue are representative words for an academic core.On the other hand,if we set the Ratio too low,then we would pull in too many general high-frequency words (left-hand side of Table 3).For example,the following words have a Ratio between 1.3and 1.5,and were thus excluded from our academic core:problem ,work (n),must ,offer (v),different ,large ,most ,also .

2.Range.The word (lemma)must occur with at least 20%of the expected frequency in at least seven of the nine academic disciplines.For example,based on the size of the Education discipline,the word ancestor should occur 238times,but it only occurs 14times.Fourteen tokens are only 5.9%of the expected value of 238,and certainly less than the threshold of 20%of ex-pected https://www.sodocs.net/doc/118834688.html,cation is therefore not counted as one of the nine dis-ciplines for ancestor ,and it also has less than the 20%expected frequency in Medicine (18.2%of expected)and Business (5.9%of expected).Because it ‘fails’in three disciplines—its range (six)is less than the required (seven)—the word does not appear in our academic core.Other words that have a range of only six are pollution ,ideology ,migrant ,continent ,capitalism ,and audit .Such words seem too technical and discipline-specific to be included in an academic core.As with the 1.50value for Ratio,there is no research-recommended value for Range.We experimented with several different Range values (e.g.six disciplines at 30%,or seven disciplines at 10%),and the specified values (seven disciplines at 20%)appeared to give the best results.

Table 3:Distinguishing the academic core

Ratio 1.5Dispersion .80

High frequency (all genres)Academic ‘core’Academic technical noun:way ,part noun:process ,analysis noun:assessment ,regime verb:take ,know verb:indicate ,establish verb:democratize ,oscillate adj:good ,small adj:significant ,critical adj:rhetorical ,lunar

adv:never ,very

adv:highly ,moreover

adv:semantically ,psychologically

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3.Dispersion.Words (lemmas)in the core must have a Dispersion of at least 0.80.This Dispersion measure (the Julliand ‘d’figure;see Julliand and Chang-Rodriguez 1964)shows how ‘evenly’a word is spread across the corpus,and it varies from 0.01(the word only occurs in an extremely small part of the corpus)to 1.00(perfectly even dispersion in all parts of the corpus).In a certain sense,Dispersion is superior to the Range measure.For example,assume that a word occurs at the 20%expected level in seven of nine discip-lines (thus fulfilling Range),but that in two of the seven disciplines (e.g.Science and Medicine)it is much more frequent than in the other five.In this case,Dispersion would likely be below 0.80and the word would therefore be eliminated from the list.As with the other two measures,there is no research-recommended score for Dispersion,and repeated tests on the data revealed that 0.80did well in eliminating words like taxonomy ,sect ,microcosm ,episodic ,plenary ,intoxication ,restorative ,deterministic ,and filial (all have a Dispersion <0.80,and seem to be fairly technical and discipline-specific),while keeping core academic words like detect ,relational ,coercion ,situational ,coordinate ,and simulated —all of which have a slightly higher Dispersion score between 0.80and 0.8

4.Discipline Measure.The final measure was (like #2and #3)designed to exclude discipline-specific and technical words.It states that the word cannot occur more than three times the expected frequency (per million words)in any of the nine disciplines.For example,student occurs in Education about 6.8times the expected frequency (taking into account the size of the Education discipline);because this is above 3.0,the word was excluded from the aca-demic core.Examples of other words that exceed 3.0for a given discipline are teacher ,education ,behaviour (Education),native ,Indian ,alliance (History),par-ticipant ,physical ,sexual ,gender (Social Science),text ,object ,reader ,essay (Humanities),regulation ,provision ,impose (Law and Political Science),risk ,treat-ment ,exercise ,stress ,exposure (Medicine and Health),moral ,spiritual ,self ,ministry (Philosophy,Religion,and Psychology),and scientist ,software ,laboratory ,cluster (Science and Technology).Again,such words—while certainly academic in nature—seem too specific for a ‘core’list.This final measure works well in eliminating them.

In summary,Criterion #1(Ratio)helps to exclude general high-frequency words from an academic ‘core’(the left-hand side of Table 3),while Criteria #2–4(Range,Dispersion,Discipline Measure)together help to exclude tech-nical words and words that occur mainly in one or two disciplines (the right-hand side of Table 3).The application of these four criteria resulted in our new AVL.For reasons of space in this article,we are not able to provide the entire AVL—words #1–3,000.However,the complete list can be freely accessed at https://www.sodocs.net/doc/118834688.html,.(On this same site,we also offer a tiered list of the highest frequency words of the 120million-word academic corpus,with AVL words highlighted within the list.)Table 4provides a sample of the AVL—words #1–500.

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Table4:Top500words(lemmas)in the AVL

1.study.n

2.group.n

3.system.n

4.social.j

5.provide.v

6.however.r

7.research.n

8.level.n

9.result.n

10.include.v

11.important.j

12.process.n

https://www.sodocs.net/doc/118834688.html,e.n

14.development.n

15.data.n

https://www.sodocs.net/doc/118834688.html,rmation.n

17.effect.n

18.change.n

19.table.n

20.policy.n

21.university.n

22.model.n

23.experience.n

24.activity.n

25.human.j

26.history.n

27.develop.v

28.suggest.v

29.economic.j

30.low.j

31.relationship.n

32.both.r

33.value.n

34.require.v

35.role.n

36.difference.n

37.analysis.n

38.practice.n

39.society.n

40.thus.r

41.control.n 42.form.n

43.report.v

44.rate.n

45.significant.j

46.figure.n

47.factor.n

48.interest.n

49.culture.n

50.need.n

51.base.v

52.population.n

53.international.j

54.technology.n

55.individual.n

56.type.n

57.describe.v

58.indicate.v

59.image.n

60.subject.n

61.science.n

62.material.n

63.produce.v

64.condition.n

65.identify.v

66.knowledge.n

67.support.n

68.performance.n

69.project.n

70.response.n

71.approach.n

72.support.v

73.period.n

https://www.sodocs.net/doc/118834688.html,anization.n

75.increase.v

76.environmental.j

77.source.n

78.nature.n

79.cultural.j

80.resource.n

81.century.n

82.strategy.n

83.theory.n

84.product.n

85.method.n

86.goal.n

87.likely.j

88.note.v

89.represent.v

90.general.j

91.article.n

92.similar.j

93.environment.n

https://www.sodocs.net/doc/118834688.html,nguage.n

95.determine.v

96.structure.n

97.section.n

https://www.sodocs.net/doc/118834688.html,mon.j

99.occur.v

100.current.j

101.available.j

102.present.v

103.term.n

104.reduce.v

105.measure.n

106.involve.v

107.movement.n

108.specific.j

109.focus.v

110.region.n

111.relate.v

112.individual.j

113.quality.n

114.establish.v

115.author.n

116.seek.v

https://www.sodocs.net/doc/118834688.html,pare.v

118.growth.n

119.natural.j

120.various.j

121.standard.n

122.example.n

123.management.n

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124.scale.n 125.argue.v 126.degree.n 127.design.n 128.concern.n 129.state.v 130.therefore.r 131.examine.v 132.pattern.n 133.researcher.n 134.task.n

135.traditional.j 136.finding.n 137.positive.j 138.central.j 139.act.n 140.impact.n 141.reflect.v 142.recognize.v 143.context.n 144.relation.n 145.maintain.v 146.African.j 147.concept.n 148.discussion.n 149.associate.v 150.design.v

151.particularly.r 152.purpose.n 153.address.v 154.define.v 155.particular.j 156.benefit.n 157.survey.n 158.effective.j 159.apply.v 160.contain.v

161.understanding.n 162.production.n 163.form.v

164.association.n 165.reveal.v 166.range.n 167.affect.v 168.attitude.n 169.status.n 170.necessary.j 171.function.n 172.indeed.r 173.present.j 174.global.j 175.conflict.n 176.achieve.v 177.conduct.v 178.critical.j 179.perform.v 180.discuss.v 181.exist.v 182.improve.v 183.observe.v

184.demonstrate.v 185.unit.n 186.total.j 187.modern.j 188.literature.n 189.result.v

190.experience.v 191.principle.n 192.element.n 193.challenge.n 194.control.v 195.historical.j 196.aspect.n

197.perspective.n 198.basic.j 199.measure.v 200.tradition.n 201.belief.n 202.western.j 203.procedure.n 204.test.v

205.category.n 206.tend.v

207.technique.n 208.outcome.n 209.significantly.r 210.generally.r 211.future.j 212.mean.n

213.importance.n 214.application.n 215.feature.n 216.influence.n 217.basis.n

218.interaction.n 219.refer.v

https://www.sodocs.net/doc/118834688.html,munication.n 221.negative.j 222.primary.j

223.characteristic.n 224.European.j https://www.sodocs.net/doc/118834688.html,ck.n 226.obtain.v 227.potential.j 228.variety.n https://www.sodocs.net/doc/118834688.html,ponent.n 230.following.j 231.access.n 232.contribute.v 233.assume.v 234.express.v 235.tool.n 236.promote.v 237.participate.v https://www.sodocs.net/doc/118834688.html,bor.n 239.engage.v 240.review.n 241.additional.j 242.highly.r

243.appropriate.j 244.publish.v 245.encourage.v 246.successful.j 247.assess.v 248.view.v 249.client.n

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250.instrument.n 251.relatively.r 252.meaning.n 253.limit.v

254.increase.n 255.directly.r 256.previous.j 257.demand.n 258.vision.n 259.female.j 260.attempt.n 261.influence.v 262.independent.j 263.solution.n 264.direct.j

265.conclusion.n 266.presence.n 267.scientific.j 268.ethnic.j

https://www.sodocs.net/doc/118834688.html,plex.j 270.active.j

271.male.n

272.claim.n

273.participation.n 274.focus.n

275.contrast.n 276.failure.n 277.internal.j 278.journal.n 279.multiple.j 280.facility.n https://www.sodocs.net/doc/118834688.html,er.n

282.emerge.v 283.protection.n 284.extent.n 285.male.j

286.mental.j 287.explore.v 288.consequence.n 289.generate.v 290.content.n 291.device.n 292.requirement.n

293.broad.j

294.observation.n

295.visual.j

296.difficulty.n

297.regional.j

298.perceive.v

299.ie.r

300.urban.j

301.female.n

302.capacity.n

303.increased.j

304.ensure.v

305.select.v

306.moreover.r

307.emphasize.v

308.institute.n

309.extend.v

310.connection.n

311.sector.n

https://www.sodocs.net/doc/118834688.html,mitment.n

313.interpretation.n

314.evaluate.v

315.conclude.v

316.notion.n

317.increasingly.r

318.domestic.j

319.consist.v

320.reference.n

321.initial.j

322.adopt.v

https://www.sodocs.net/doc/118834688.html,parison.n

324.depend.v

325.attempt.v

326.standard.j

327.predict.v

328.employ.v

329.definition.n

330.essential.j

331.contact.n

332.frequently.r

333.colleague.n

334.actual.j

335.account.v

336.dimension.n

337.theme.n

https://www.sodocs.net/doc/118834688.html,rgely.r

339.link.v

340.desire.n

341.overall.j

https://www.sodocs.net/doc/118834688.html,eful.j

343.consistent.j

344.distribution.n

345.minority.n

346.analyze.v

347.range.v

348.psychological.j

349.unique.j

350.experiment.n

351.trend.n

352.exchange.n

353.percentage.n

354.objective.n

355.implication.n

356.contribution.n

357.enable.v

https://www.sodocs.net/doc/118834688.html,anize.v

359.specifically.r

360.currently.r

361.emotional.j

362.locate.v

363.primarily.r

364.scholar.n

365.enhance.v

366.improvement.n

367.flow.n

368.estimate.v

369.phase.n

370.rural.j

371.typically.r

372.above.r

373.long-term.j

374.core.n

375.volume.n

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376.approximately.r 377.limited.j 378.propose.v 379.framework.n 380.existing.j 381.creation.n 382.code.n

383.emphasis.n 384.industrial.j 385.external.j 386.waste.n 387.potential.n 388.climate.n

389.explanation.n 390.technical.j 391.mechanism.n 392.description.n 393.vary.v

394.reduction.n 395.discipline.n 396.construct.v 397.equal.j 398.origin.n 399.rely.v

400.fundamental.j 401.transition.n 402.assumption.n 403.German.j 404.existence.n 405.formal.j 406.manner.n 407.assistance.n https://www.sodocs.net/doc/118834688.html,bination.n 409.increasing.j 410.hypothesis.n 411.phenomenon.n 412.planning.n 413.error.n

414.household.n 415.cite.v https://www.sodocs.net/doc/118834688.html,ck.v

417.judgment.n 418.constitute.v 419.relevant.j 420.typical.j 421.selection.n 422.incorporate.v 423.illustrate.v 424.cycle.n

425.depression.n 426.consideration.n 427.previously.r 428.arise.v

429.developing.j 430.separate.j 431.recognition.n 432.mode.n 433.similarly.r 434.resistance.n 435.furthermore.r 436.diversity.n 437.practical.j 438.anxiety.n 439.acquire.v

440.characterize.v 441.differ.v 442.review.v 443.interpret.v 444.creative.j 445.limitation.n 446.resolution.n

447.implementation.n 448.numerous.j 449.significance.n 450.revolution.n 451.philosophy.n 452.display.v

453.professional.n 454.publication.n 455.variation.n 456.derive.v

457.alternative.n 458.widely.r 459.permit.v

460.alternative.j 461.merely.r 462.initiative.n 463.employment.n 464.regard.v 465.estimate.n 466.effectively.r 467.cooperation.n 468.transform.v 469.absence.n 470.imply.v

https://www.sodocs.net/doc/118834688.html,prehensive.j 472.observer.n 473.nevertheless.r 474.testing.n 475.link.n

476.evolution.n 477.intellectual.j 478.signal.n 479.passage.n 480.facilitate.v 481.discovery.n 482.biological.j 483.introduction.n 484.boundary.n 485.substantial.j 486.ratio.n 487.strongly.r 488.theoretical.j 489.gain.n 490.general.r 491.settlement.n 492.independence.n 493.yield.v

494.formation.n 495.insight.n 496.territory.n 497.conventional.j https://www.sodocs.net/doc/118834688.html,rm.v 499.index.n 500.crucial.j

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5.3Creation of AVL word families

To make direct comparisons with the AWL and other word-family lists,it was necessary to convert our lemma-based AVL into word families,the top 2,000of which can also be found at https://www.sodocs.net/doc/118834688.html,.Word families were created for the AVL with the aid of Paul Nation’s 20,000+word families,which were merged into our database.Table 5contains an example entry for our word family define .

We suggest that our format for word families includes a number of useful features for instruction and research not available in standard word-family presentations.

1The families are ordered by frequency (#1through $#2,000),and we provide the actual frequencies for each,based on our 120-million-word academic corpus.For example,the family define is #98in the family list and it occurs 37,705times in the academic corpus.

2We group the words by lemma,so that define ,defines ,defined ,and defining (for the verb define )are not listed separately.

3We separate by part of speech,which provides insight into meaning and usage.For example,we separate defining as an adjective and defining as part of the verbal lemma define .

4We indicate which list the lemmas are part https://www.sodocs.net/doc/118834688.html,ers can see whether the lemma is part of the core academic list (e.g.define and definition ),tech-nical/discipline-specific (e.g.definitional and indefinable ),or whether it is a lemma that is not academic per se,but is still included in the word family for potential learning purposes (e.g.defining as an adjective).(Note:in the downloadable version,these distinctions are color-coded,but in this printed version,we use bold for core academic and italic for technical words.)

5The AVL word families indicate the frequency of each lemma,allowing learners and teachers to focus first on the most frequent academic lemmas in a particular family.This level of instructional detail is not possible with the AWL and modern versions of the GSL.

6For those words that are technical/discipline-specific,we indicate the dis-cipline(s)in which they are most common (e.g.definitional in Education,or indefinable in Humanities).

Table 5:Word family example for ‘define’

Define

37,705

define (v)23,125definition (n)11,955redefine (v)1296defining (j)702defined (j)563redefinition (n)341

undefined (j)170definitional (j)Edu 165definable (j)110predefined (j)104redefined (j)41indefinable (j)Hum 36undefinable (j)17redefining (n)Edu +Hum 13

Word family rankings and frequencies are based on core academic words (lemmas)only,shown here as bold entries.

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6.CASE STUDIES

To test the viability of the new AVL,we carried out several case studies,which we report here.It is important to note that only the top 570AVL word families were used in the case studies.This allowed us in some cases to make direct comparisons with the 570word families of the AWL.

6.1Coverage across genres

Our first case study was to determine whether the AVL is what we are claiming it to be—a reliable list of academic rather than general English,thus validating both the list and the methodology used to produce it.To test this,we first created two separate word lists,each with 570randomly selected COCA word families with high overall frequencies.It is important to note that these ran-domly generated lists included many general high-frequency words of English and will therefore show higher overall coverage figures than our AVL,which is narrowly focused on academic vocabulary.

Table 6gives the coverage data of the two random lists for three major genres of COCA:academic,newspaper,and fiction.As we would suspect,the two randomly generated lists do not show any marked differences in coverage between the three genres,and certainly would not be good lists for focused academic English purposes,as learners would likely need to sift through many words that are not particularly useful in meeting academic needs.

Compare these nearly equal coverage distributions with those in Table 7for our AVL in both COCA and the BNC.Note that ‘Academic’in the BNC is a combination of all texts marked [w_acad*]and [w_non_ac*](=technical magazines)in the BNC metadata.This academic subcorpus consists of selec-tions from books (602),journals (367),and other manuscripts (66).

It is clear that in both corpora we get precisely what we would expect of a truly ‘academic’list—much better coverage in academic than in newspaper for our AVL,and even better coverage when compared with fiction.This is to be

Table 6:COCA genre coverage of two lists of 570randomly selected word families

Genres

Genre size

Words in random list 1Words in random list 2

Average

#Words #Words

Coverage #Words Coverage Coverage

Academic 120,847,70928,021,24923.2%18,890,25415.6%

19.4%Newspaper 77,553,00020,444,34221.4%12,742,45916.4%21.4%Fiction 83,369,90723,358,35920.6%11,064,61713.3%

20.6%

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expected because fiction is much less like academic than newspapers.It is also interesting to note how similar the AVL coverage is in both COCA and the BNC.

6.2Comparing AVL to AWL

The next case study was designed to compare AVL and AWL coverage in sub-stantial academic corpora.Again,we only used the top 570word families of our AVL to make a valid comparison with the 570word families of the AWL.The results in Table 8indicate that the AVL has nearly twice the coverage as the AWL.Perhaps equally important is the fact that this advantage holds for both COCA (an American corpus,from which the AVL was derived)and the completely unrelated BNC (a British corpus,which was not used in the cre-ation of the AVL).The results also indicate that there are fundamental differ-ences in the composition of the two lists.

6.3Is AVL versus AWL a fair comparison?

Some may argue that our AVL–AWL comparisons are inherently ‘unfair’be-cause the AWL was placed on top of the GSL,while our list has no such restrictions and may therefore contain many more words with higher general frequencies.To this,we would respond that (i)as discussed previously,the AWL itself actually contains many high-frequency words that were not accounted for because of the decision to place it on top of the dated GSL,

Table 7:COCA and BNC genre coverage with the AVL

Genres

COCA BNC

Genre size

#Words AVL

Coverage Genre

size

#Words AVL

Coverage

Academic 120,847,70916,633,79613.8%32,828,9614,507,21113.7%

Newspaper 77,553,0006,229,3598.0%10,638,034740,0657.0%Fiction 83,369,9072,862,093 3.4%16,194,885548,708 3.4%

Table 8:Coverage of AVL and AWL in COCA academic and BNC academic

List

COCA academic BNC academic

Genre size

#Words

Coverage Genre size

#Words

Coverage

AVL (570)120,847,70916,633,79613.8%

32,828,9614,507,21113.7%AWL (570)120,847,7098,601,8397.2%32,828,9612,261,469 6.9%

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and (ii)our comparisons with the AWL were done solely out of the necessity to justify and establish a new academic list,given the important contributions of the AWL over the past decade.In one sense,the AWL and the AVL actually represent different conceptualizations of what ‘core academic’means.If our AVL contains more high-frequency words than the AWL,it is because the objective,statistical data suggested that they are ‘academic’.We were not con-strained by a GSL or any other list.

We also acknowledge that we have benefitted from advancements in tech-nology,corpus construction,and corpus size because the AWL was produced over a decade ago.In short,we view all of these issues as justification for our efforts in creating a new AVL,and also the reason we are not able to simply combine our list with the AWL,or use our list to adjust the AWL,as some have suggested.

Others may argue that it makes no difference whether the AWL follows the GSL because learners will eventually get most of the ‘academic’words one way or the other.We see this as a dubious argument if the learning goal is ‘aca-demic’,not ‘general’English.As previously discussed,such a stance requires learners and teachers to sift through a great deal of non-academic and dated vocabulary in the GSL,and also to neglect important academic words they may need now,not later.

6.4What to do with the new AVL

From our perspective,the key to using the AVL is to focus on English for academic purposes,not English for general purposes.For instance,many lear-ners in academic settings will already have a basic English vocabulary in place (similar to what the GSL represents),and they may even know some words on the AVL.For such learners,the target may be the unknown words in the expanded AVL (3,000lemmas,2,000word families),together with key discip-line-specific vocabulary.

For those academic learners who are true beginners in English,there are many long-standing resources such as the Dolch List (1948)and Fry List (1996)that could be learned as a precursor to working with the AVL.As mentioned previously,we are also making freely available at https://www.sodocs.net/doc/118834688.html, the word frequency listing of the 120-million-word academic subcorpus from which the AVL was derived,with AVL words highlighted in the list.Working with the top tiers of this frequency listing (top 500,top 1,000,etc.)would seem to be the best approach for dealing with the vocabulary of beginning learners in academic settings because the list comes from academic,not general texts.Thus,it would contain the standard high-frequency function words found in almost all lists,plus the highest frequency content words of a substantial academic subcorpus (120million words),some of which will be AVL words.

Finally,the new AVL will be an integral part of a new online resource found at https://www.sodocs.net/doc/118834688.html,/academic.There are two main parts to this site.

A NEW ACADEMIC VOCABULARY LIST

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七年级下册外研版英语全册书单词表

1、蜡笔 2、橡皮擦 3、手套 4、钱包 5、表；(通常指)手表 6、谁的 7、首先；第一8、失去（原&过） 9、发现；找到（原&过）10、失物招领箱 11、我的（名物代） 12、你的；你们的（名物代） 13、录音带；录像带 14、紫色的，紫红色的；紫色，紫红色15、她的（名物代） 16、仔细的；认真的；小心的 17、小心(对待)…18、从某时刻起 19、从现在开始 20、(用于刚找到某人或某物时)在这儿… 21、照相机 22、电话；电话机 23、移动电话；手机 24、失物招领处 25、匆匆忙忙26、丢下；遗忘（原&过） 27、飞机 28、出租车 29、为什么 30、机场；航空港 31、百32、几百；成百上千 33、寻找34、千 35、奇怪的 36、船 37、鸭 38、猪 39、香肠；腊肠

1、演奏；弹奏 2、网球 3、钢琴 4、骑；乘（原&过） 5、俱乐部 6、学期 7、布告板8、想要；希望 9、噢；喔 10、所有的；全部的 11、仅此而已12、焦虑；担心 13、担心…14、教；讲（原&过） 15、那么；就 16、班长；监督员 17、开始；开端18、与某人相处融洽 19、乐意的20、乐于做某事 21承诺；保证 22、快的，快速的；快地，快速地23、健康的；强健的 24、就；正好 25、球；球类游戏 26、运动项目 27、队伍；球队 28、最好的 29、得分；成绩 30、整齐的，整洁的；收拾，整理31、确信的；有把握的 32、每个人 33、正如；正像34、美的;美丽的 35、放飞(风筝)；飞行；乘飞机（原&过） 36、风筝 37、游泳（原&过）

1、复习；练习 2、野餐 3、家务劳动 4、在……时候 5、其他；另外 6、没有人 7、在…点钟 8、没有什么;没有东西9、愚蠢的；傻气的 10、极好的 11、面向未来的；向前12、盼望 13、迷；支持者14、交朋友 15、球衣；(男式)衬衫 16、为…喝彩 17、运动员；选手 18、希望 19、赢；获胜（原&过）20、过得愉快 21、我自己 22、在…期间 23、5月24、五一劳动节 25、迟的，晚的 26、步行；走 27、散步28、乡下；乡村 29、第二 30、收集 31、垃圾 32、娱乐；乐趣 33、暑假34、营地；帐篷 35、澳大利亚的 36、观光；游览 37、观光38、海滨;海滩 39、早的，提前

外研版七年级英语下册单词表

七年级下册单词表 Module 1 *buy v．买 call v.打电话 drive v．开车 enjoy v. 享受 lie v. 躺下 *shop v．逛商店；购物 *take v．获得；拿；抓 take photos 拍照 *tell v．讲；告诉 *wait v．等 *for prep．为；为了 *wait for 等待；等候 *postcard n. 明信片 the Great Wall 长城 *really adv．(表语气)真的吗 a good time 美好时光 a lot 非常 anyway adv．(转换话题、结束谈话时说)无论如何，反正car n. 小汽车 put on 穿上 *thing n.事情；东西 leave v. 离开 work n.＆v. 工作 at home 在家 pub n．洒馆 *restaurant n．饭馆 opera n．歌剧 ballet n．芭蕾舞 sleep n&v．睡觉 *wash v．洗；洗涤 dress v．穿衣服 *start n&v．开始 midday n. 正午 *hot dog 热狗 coffee n.咖啡 see v．探望；看见 greeting n．问候；致意 at the moment 现在，此时 look at 看…… *soon adv．立刻；不久

*love n.&v．爱；热爱 See you later 再见。 *night n．夜晚 good night 晚安（打招呼用语）*street n．街道 Module 2 festival n．节目 Spring Festival 春节 ready adj．有准箭的 get ready for 为……准备好 *clean v．打扫；弄干净 *cook v．做饭；烹饪 meal n．一餐，一顿饭 *learn v．学；学会 dragon n．龙 dragon dance 舞龙 lantern n．灯笼 Lantern Festival 元宵节 sweep v．打扫 sweep away 扫去 *floor n．地板 *happen V．发生 *help v．帮助 at work 在工作 *tradition n．传统 bad adj．坏的；不好的 *luck n．运气 *paint v．涂；绘域 *mean v．意思是；意味 decorate v．装饰 decc)ration n．装饰 paper cut 剪纸 everyone pron．每个人； haircut n．理发 *give v．给 New Year 新年 New Year's Eve 新年前夜dumpling n．饺子；团子 sweet adj．甜的 pudding n．布丁；甜点心fireworks n．(复)焰火 few n．小多，很少 a few 一些 *want v．要；想要

(完整版)外研版七年级下册英语单词表(打印版)

外研版初中英语七年级下册单词表七年级下册 Module 1 *buy v．买 call v.打电话 drive v．开车 enjoy v. 享受 lie v. 躺下 *shop v．逛商店；购物 *take v．获得；拿；抓 take photos 拍照 *tell v．讲；告诉 *wait v．等 *for prep．为；为了 *wait for 等待；等候 *postcard n. 明信片 the Great Wall 长城 *really adv． (表语气)真的吗 a good time 美好时光 a lot 非常 anyway ad v． (转换话题、结束谈话时说)无论如何，反正 car n. 小汽车 put on 穿上 *thing n.事情；东西 leave v. 离开 work n.＆v. 工作 at home 在家 pub n．洒馆 *restaurant n．饭馆 opera n．歌剧 ballet n．芭蕾舞 sleep n&v．睡觉 *wash v．洗；洗涤 dress v．穿衣服

*start n&v．开始 midday n. 正午 *hot dog 热狗 coffee n.咖啡 see v．探望；看见greeting n．问候；致意at the moment 现在，此时 look at 看…… *soon ad v．立刻；不久*love n.&v．爱；热爱See you later 再见。 *night n．夜晚 good night 晚安（打招呼用语）*street n．街道 Module 2 festival n．节目Spring Festival 春节 ready adj．有准箭的 get ready for 为……准备好 *clean v．打扫；弄干净*cook v．做饭；烹饪meal n．一餐，一顿饭 *learn v．学；学会dragon n．龙 dragon dance 舞龙 lantern n．灯笼 Lantern Festival 元宵节sweep v．打扫 sweep away 扫去 *floor n．地板 *happen V．发生 *help v．帮助 at work 在工作 *tradition n．传统

外研版七年级下册英语单词表(打印版)

*start n&v．开始 midday n. 正午 *hot dog 热狗 coffee n.咖啡 see v．探望；看见greeting n．问候；致意 at the moment 现在，此时 look at 看…… *soon ad v．立刻；不久 *love n.&v．爱；热爱See you later 再见。 *night n．夜晚 good night 晚安（打招呼用语）*street n．街道 Module 2 festival n．节目 Spring Festival 春节 ready adj．有准箭的 get ready for 为……准备好 *clean v．打扫；弄干净 *cook v．做饭；烹饪 meal n．一餐，一顿饭 *learn v．学；学会 dragon n．龙 dragon dance 舞龙 lantern n．灯笼 Lantern Festival 元宵节sweep v．打扫 sweep away 扫去 *floor n．地板 *happen V．发生 *help v．帮助 at work 在工作 *tradition n．传统

七年级(下册)外研版英语全册书单词表.doc

初中英语七年级单词表 (七下M1~10） M1 1、蜡笔____________ 2、橡皮擦____________ 3、手套____________ 4、钱包____________ 5、手表____________ 6、谁的____________ 7、首先；第一____________ 8、失去____________ 9、发现；找到____________ 10、失物招领箱____________ 11、我的____________ 12、你的；你们的____________ 13、录音带；录像带____________ 14、紫色的____________ 15、她的____________ 16、认真的____________ 17、小心(对待)…____________ 18、从某时刻起____________ 19、从现在开始____________ 20、在这儿…____________ 21、照相机____________ 22、电话；电话机____________ 23、移动电话；手机____________ 24、失物招领处____________ 25、匆匆忙忙____________ 26、丢下；遗忘____________ 27、飞机____________ 28、出租车____________ 29、为什么____________ 30、机场____________ 31、百____________ 32、几百；成百上千____________ 33、寻找____________ 34、千____________ 35、奇怪的____________ 36、船____________ 37、鸭____________ 38、猪____________ 39、香肠；腊肠____________M2 1、演奏；弹奏____________ 2、网球____________ 3、钢琴____________ 4、骑；乘____________ 5、俱乐部____________ 6、学期____________ 7、布告板____________ 8、想要；希望____________ 9、噢；喔____________ 10、所有的____________ 11、仅此而已____________ 12、焦虑；担心____________ 13、担心…____________ 14、教；讲____________ 15、那么；就____________ 16、班长；监督员____________ 17、开始；开端____________ 18、与某人相处融洽____________ 19、乐意的____________ 20、乐于做某事____________ 21、承诺；保证____________ 22、快的____________ 23、健康的；强健的____________ 24、就；正好____________ 25、球；球类游戏____________ 26、运动项目____________ 27、队伍；球队____________ 28、最好的____________ 29、得分；成绩____________ 30、整齐的____________ 31、确信的____________ 32、每个人____________ 33、正如；正像____________ 34、美的;美丽的____________ 35、飞行____________ 36、风筝____________ 37、游泳____________

外研版七年级下册英语单词汇总表带音标

v1.0 可编辑可修改 2012新版外研社英语七年级(下)词汇表 Module 1 crayon['krein]n.蜡笔 eraser [i'reiz]n.橡皮擦 glove [ɡlv] n.手套 wallet ['wlt]n.钱包 watch [wt, w:t] n.表; (通常指)手表 whose [hu:z]pron.谁的 first of all首先; 第一 lose [lu:z]v. ( lost ) 失去 find [faind]v. ( found ) 发现; 找到 lost and found box失物招领箱mine[main] pron.我的 yours [j:z, juz]pron.你(们)的tape [teip]n.录音带;录像带purple ['p:pl]adj.紫色的; 紫红色的 n.紫色;紫红色 hers [h:z] pron.她的 careful ['kεful] adj.仔细的; 认真的; 小心的be careful with小心(对待) ...... on adv.从某时刻起 from now on从现在开始 here is / are ... (用于刚找到某人或某物时) 在这儿 camera ['kmr] n.照相机 phone[fun] n.电话; 电话机 mobile phone移动电话; 手机 lost and found office失物招领处in a hurry匆匆忙忙 leave[li:v] v. ( left ) 丢下; 遗忘 plane [plein]n.飞机 taxi ['tksi]n.出租车 why[hwai]adv.为什么 airport['εp:t]n.机场;航空港hundred ['hndrd] num.百 hundreds of几百; 成百上千 look for寻找 thousand ['θauznd]num.千strange [streind] adj.奇怪的 boat[but]n.船

外研版初中英语七年级下册单词表

2012新版外研社英语七年级(下)词汇表 Module 1 crayon ['krei?n] n.蜡笔 eraser [i'reiz?] n.橡皮擦 glove [ɡl?v] n.手套 wallet ['w?l?t] n.钱包 watch [w?t?, w?:t?] n.表; (通常指)手表 whose [hu:z] pron.谁的 first of all首先; 第一 lose [lu:z] v. ( lost ) 失去 find [faind] v. ( found ) 发现; 找到 lost and found box失物招领箱 mine[main] pron.我的 yours [j?:z, ju?z] pron.你(们)的 tape [teip] n.录音带;录像带 purple ['p?:pl] adj.紫色的; 紫红色的 n.紫色;紫红色 hers [h?:z] pron.她的 ful] adj.仔细的; 认真的 careful ['kε？ be careful with小心(对待) ...... on adv.从某时刻起 from now on从现在开始 here is / are ... (用于刚找到某人或某物时) 在这儿 camera ['k?m?r?] n.照相机 phone [f?un] n.电话; 电话机 mobile phone移动电话; 手机 lost and found office失物招领处 in a hurry匆匆忙忙 leave[li:v] v. ( left ) 丢下; 遗忘 plane [plein] n.飞机 taxi ['t?ksi] n.出租车 why [hwai] adv.为什么 p?:t] n.机场;航空港 airport ['ε？ hundred ['h?ndr?d] num.百 hundreds of几百; 成百上千 look for寻找 nd] num.千 thousand ['θauz? strange [streind?] adj.奇怪的 boat [b?ut] n.船

2016最新学术规

2016最新学术规范学术是某一学术课题在实验性、理论性或观测性上具有新的科学研究成果或创新见解和知识的科学记录，或是某种已知原理应用于实际中取得新进展的科学总结，用以提供学术会议上宣读、交流或讨论，或在学术刊物上发表;或作其他用途的书面文件。学术具有说理性、创见性、逻辑性、科学性的特点，其格式(即一定的规格式样)与说明、描写、记叙等其他文体的文章有很大不同。为了便于学术所报道的理论研究成果的收集、储存、处理、加工、检索、利用、交流和传播，国家有关部门对其格式发布实施了一些规范，主要有3个国家标准：《科学技术报告、学位和学术的编写格式》(GB/T 7713-1987);《学位编写规则》(GB/T7713.1-2006);《文后着录规则》(GB/T 7714-2005)。对于这些国家标准，不少作者了解得不多或者理解的不全面、准确，以至于在具体写作实践中出现一些不规范的问题。一、题名 1、概念。题名又称题目、标题，是以最恰当、最简明的词语反映中最重要的特定内容的逻辑组合，所用每一词语必须考虑到有助于选定关键词和编制题录、索引等二次文献可以提供检索的特定实

用信息，避免使用不常见的缩略词、首字母缩写字、字符、代号和公式等。题名是反映一篇学术研究范围、论点与水平的第一个重要信息。常言说看书先看皮(书名)，看文先看题(标题)，其重要性可概括为一句话题好一半文。一般学术不需要副题名，但是下列情况可以有副题名:题名语意未尽，用副题名补充说明报告中的特定内容;分册出版，或是一系列工作分几篇报道，或是分阶段的研究结果，各用不同副题名区别其特定内容;其他有必要用副题名作为引申或说明者。 2、基本类型。题名一般表现为以下3种基本类型：一是揭示研究范围的题名。如《论审计质量的概念》，它只反映研究的范围，而不表达出的观点。二是揭示课题主旨或论点的题名。如《审计质量之用户满意论》，这种标题直接反映作者的主张，即的论点。三是兼有主题、副题的题名，既反映的研究范围又反映论点。如《审计质量概念研究审计质量之用户满意论》。副题名必须是进一步补充说明主题，防止出现两张皮的问题。在具体写作实践中，常用题名形式归纳起来主要有以下几种：《论(谈、浅谈、浅议、议、浅析)XX(问题)》;《XX 存在的问题与对策(之我见、管见)》;《XX(问题)探讨(初探、之我见、管见)》;《关于(对)XX(问题)的问题探讨(几点认识、思考)》。需要注意的是，在这种题名中，介词关于和对不可连用，只能用其一。

(完整版)外研版七年级下册词汇表(带音标)

2012 新版外研社英语七年级（下）词汇表 Module 1 crayon ['krei ?n]n. 蜡笔 eraser [i'reiz ?]n. 橡皮擦 glove [ g l?v n.手套 wallet ['w?l?t]n. 钱包 watch [w?t?, w?:t?] n. 表; (通常指)手表 whose [hu:z] pron. 谁的 first of all 首先 ; 第一 lose [lu:z ]v. ( lost ) 失去 find [faind] v. ( found ) 发现 ; 找到 lost and found box 失物招领箱 mine [main] pron. 我的 yours [j?:z, ju ?z] pron. 你(们)的 tape [teip] n. 录音带 ;录像带 purple ['p ?:pl] adj. 紫色的 ; 紫红色的 n. 紫色 ;紫红色 hers [h ?:z] pron. 她的 careful ['k ￡fui] adj. 仔细的；认真的；小心的 be careful with 小心(对待) ....... on adv. 从某时刻起 from now on 从现在开始 here is / are ... (用于刚找到某人或某物时 ) 在这儿 camera ['k? m?r?] n. 照相机 phone [f?un] n. 电话；电话机 mobile phone 移动电话；手机 lost and found office 失物招领处 in a hurry 匆匆忙忙 leave [li:v] v . ( left ) 丢下；遗忘 plane [plein] n. 飞机 taxi ['t? ksi] n. 出租车 why [hwai] adv. 为什么 airport [' f p ??:t] n. 机场；航空港 hundred ['h ?ndr ?d] num. 百 hundreds of 几百 ; 成百上千 look for 寻找 thousand [' 9 auz?d] num.千 strange [streind ?] adj. 奇怪的 boat [b?ut] n. 船 duck [d?k] n. 鸭 pig [p ?g] n. 猪 sausage ['s?s?d?] n. 香肠；腊肠 Module 2 play [ple ?] v. 演奏；弹奏 tennis ['ten ?s]n. 网球 piano [p?'? n??] n. 钢琴 ride [ra?d] v. ( rode ) 骑；乘 club [kl?b] n. 俱乐部 term [t??m] n. 学期 board [b??d] n. 布告板 would like 想要；希望 well [wel] int. 噢；呢 all [??l]adj. 所有的；全部的 that's all 仅此而已 *worry ['w?r?] v. 焦虑；担心 worry about 担心 .... teach [ti?t?] v. ( taught ) 教；讲 then [een] adv. 那么；就 monitor ['m ?n?t?] n. 班长；监督员 start [st a ?t(p.开始；开端 get on well with sb . 与某人相处融洽 ready ['red ?] adj. 乐意的 ready to do sth. 乐于做某事 promise ['pr ?m?s] v. 承诺；保证 fast [f a ?st]adv. 快地；快速地 adj. 快的；快速的 fit [f?t] adj. 健康的；强健的 just [d ??st] adv. 就; 正好 ball [b ??l]n. 球; 球类游戏 game [ge ?m]n. 运动项目 team [ti?m] n. 队伍 ; 球队 best [best] adj. 最好的 score [sk ??] n. 得分; 成绩 tidy ['ta ?d ?] adj. 整齐的 ; 整洁的; 爱整洁的 ;爱整齐的 v. 收拾 ; 整理 sure [???; ???] adj. 确信的 ; 有把握的 everybody ['evr ?b?d?] pron. 每个人 just like 正如 ; 正像 beautiful ['bju?t? f?l; -f( ?)l] adj. 美的; 美丽的 fly [fla ?] v. ( flew ) 放飞 ( 风筝 ); 飞行 ; 乘飞机 kite [ka ?t] n. 风筝 swim [sw ?m] v.

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