2021-2022年湖北省武漢市公共英語五級(筆試)模擬考試(含答案)

2021-2022年湖北省武漢市公共英語五級(筆試)模擬考試(含答案)學校:________班級:________姓名:________考號:________

一、1.ListeningComprehension(15題)1.What'soneofthebestwaystohelpyouraudience?

2.MDdecidescompany'spoliciesandcarriesthemout．

A.RightB.Wrong

3.Meatsalsocontainwater.

A.TrueB.Fasle

4.HowhigharethemountainsinNorweija?

A.Twothousandfeet.

B.Twelvethousandfeet.

C.Twentythousandfeet.

D.Twenty-twothousandfeet.

5.Dr.WilsonasksWangtodoalittlemoreresearchbeforedecidingonhisproject.

A.RightB.Wrong

6.Thepast-orientedpeopletendtolookattheworldina______．

7.Thefrontdoortohishomedoesnotopenautomatically.

A.TrueB.Fasle

8.WhichofthefollowingstatementsisNOTTRUE?

A.Gettingofftoworkwithaminimumefforthelpssaveone'senergy.

B.Dr.Kleimanexplainswhypeoplereachtheirpeaksatdifferenthoursofaday.

C.Habithelpsapersonadapttohisownenergycycle.

D.Childrenhaveenergycycles,too.

9.Accordingtothespeaker,whatdoesamanagerhavetotreateveryoneofhisstaffas?

10.Mr.Millerenjoysdoingthingswithhisownhands.

A.TrueB.Fasle

11.Afterdeliveringthenewinformation,whyshouldthespeakeralsogivehisaudiencesometime?

12.WhichofthefollowingCanbecalledasa“l(fā)ameduck”?

A.Adisabledlittlechild．

B.Ahard-workingfarmer．

C.Apoliticianwhohastocometotheendofhispower．

D.Anabsent-mindedoldprofessor．

13.MostpeopleinthemountainsofEduadordrinkalotofcoffeeandalcohol,buttheystilllivelong.

A.TrueB.Fasle

14.Accordingtothelecture,whatisinflation?

A.Risingprices.

B.Fixedincome.

C.Realincome.

D.Costofliving.

15.Dr．MannisnowinCambridge，writingabookonthe______．

二、2.UseofEnglish(10題)16.

【C10】

17.(43)

18.(41)

19.

【C11】

20.

【C17】

21.

【C15】

22.

【C7】

23.(40)

24.(44)

25.(48)

三、3.ReadingComprehension(15題)26.

Today'scorporateexecutiveofficersresembletheindustrialistsandagriculturistsinthepastintheirrealizationof______.

A.theessentialrolesoftheworkersinturningoutmoreproducts

B.theimportanceofinformationtoacompany'sdevelopment

C.theimportanceoftechnologyleadingtohighemployeeproductivity

D.thenecessityofprovidingemployeeswithacomfortableenvironment

27.

Whatisthemainmessageofthistext?

A.Thatthesaltscareisnotjustified.

B.Thattheorginofhypertensionisnowfound.

C.Thatthemoderateuseofsaltisrecommended.

D.Thatsaltconsumptionistobepromoted.

28.

Theword"tarnish"(line4,paragraph4)mostprobablymeans______.

A.affectB.warnC.troubleD.stain

29.

Whichofthefollowingstatementsistrueaboutinsuranceproducts?

A.Peoplehavenochoicewhenbuyinginsuranceproducts.

B.Thereweresomanychoicesininsuranceproductsinthepastthatpeoplefounditdifficulttomakeadecision.

C.Therearenobetterandcheaperinsuranceproducts.

D.Itisbetterforpeopletohavesomanyinsuranceproductstochoose.

30.

Whenmentioning“the$4millionto$10millionrange”(Line3-4,Paragraph3)theauthoristalkingabout______.

A.goldmarket

B.realestate

C.stockexchange

D.ventureinvestment

31.

Whichofthefollowingbestsummarizesthetext?

A.AstheUNhesitates,thepoortakeaction.

B.ProgressinenvironmentalprotectionhasbeenmadesincetheRioSummit.

C.Climatechangescannolongerbeneglected.

D.Thedeclineofearth'slife-supportsystemshasbeenhalted.

32.

"Thesedifferences"inparagraph5refertothosein______.

A.skillsofmenandwomen

B.schoolsubjects

C.thebrainstructureofmenandwomen

D.activitiescarriedoutbythebrain

33.

Whichofthefollowingistrueaccordingtothetext?

A.Ashanthineedstoreceivegene-therapytreatmentconstantly.

B.Despitethehugefunding,generesearcheshaveshownfewpromises.

C.Therapeuticgenesarecarriedbyharmlessviruses.

D.Gene-dopingisencouragedbyworldagenciestohelpathletesgetbetterscores.

34.(75)

35.PartB

Directions:Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66-70,choosethemostsuitableparagraphfromthelistA-Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.MarkyouranswersonANSWERSHEET1.

Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66～70,choosethemostsuitableparagraphfromthelistA～Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.

A．Thereremained,however,the“easier”labor—thelaborthatrequiredthehumaneyes,ears,judgmentandmindbutnosweating.Itneverthelesshaditsmiseries,forittendedtobedull,repetitious,andboring.Andthereisalwaysthesoursenseofendlesslydoingsomething.unpleasantundercompulsion.

B．Foronething,muchofhumaneffortthatistodayputinto“mimingtheworld”willbeunnecessary.Withcomputers,robotsandautomation,agreatdealofthedailygrindwillappeartoberunningitself.Thisisnothingstartling.ItisatrendthathasbeenrapidlyonitswayeversinceWorldWarⅡ.

C．Andnowwestandatthebrinkofachangethatwillbethegreatestofall,forworkinitsoldsensewilldisappearaltogether.Tomostpeople,workhasalwaysbeenanefforffulexercisingofmindorbody—compelledbythebitternecessityofearningthenecessitiesoflife—plusanoccasionalperiodofleisureinwhichtorestorhavefun.

D．Clearlytherewillbeapainfulperiodoftransition,onethatisstartingalready,andonethatwillbeinfullswingasthe21stcenturybegins.

E．Inthefirstplace,thecomputeragewillintroduceatotalrevolutioninournotionsofeducation,andisbeginningtodosonow.Thecomingofthecomputerwillmakelearningfun,andasuccessfullystimulatedmindwilllearnquickly.Itwillundoubtedlyturnoutthatthe“average”childismuchmoreintelligentandcreativethanwegenerallysuppose.Therewasatime,afterall,whentheabilitytoreadandwritewasconfinedtoaverysmallgroupof“scholars”andalmostallofthemwouldhavescoutedthenotionthatjustaboutanyonecouldlearntheintricaciesofliteracy.Yetwithmasseducationgeneralliteracycametobeafact.

F．Thismeansthatthedull,theboring,therepetitious,themind-stultifyingworkwillbegintodisappearfromthejobmarket—isalreadybeginningtodisappear.This,ofcourse,willintroducetwovitalsetsofproblem—isalreadyintroducingthem.

Periodicallyinhistory,therecomeperiodsofgreattransitioninwhichworkchangesitsmeaning.Therewasatime,perhaps10,000yearsago,whenhumanbeingsstoppedfeedingthemselvesbyhuntinggameandgatheringplants.andincreasinglyturnedtoagriculture.Inaway,thatrepresentedtheinventionof“work”.

Then,inthelatterdecadesofthe18thcentury,astheIndustrialRevolutionbeganinGreatBritain,therewasanothertransitioninwhichthesymbolsofworkwerenolongerthehoeandtheplow;theywerereplacedbythemillandtheassemblyline.66．______

WiththeIndustrialRevolution,machinery—poweredfirstbysteam,thenbyelectricityandinternalcombustionengines—tookoverthehardphysicaltasksandrelievedthestrainonhumanandanimalmuscles.

67．______

Andyet,suchjobshavebeencharacteristicofthehumanconditioninthefirstthree-quartersofthe20thcentury.They'vemadetoolittledemandonthehumanmindandspirittokeepthemfreshandalive,madetoomuchdemandforanymachinetoservethepurposeuntilnow.

Theelectroniccomputer,inventedinthe1940'sandimprovedatbreakneckspeed,wasamachinethat,forthefirsttime,seemedcapableofdoingworkthathaduntilthenbeenthepreserveofthehumanmind．Withthecoming

36.

Whyarehorsesusedtocatchtheelectriceels?

A.Tofrightentheeels.

B.Toexhausttheeels.

C.Toattracttheeels.

D.Tostirthewater.

37.

Accordingtothepassageitiscommonlybelievedthatbraindifferencesarecausedby______factors.

A.biologicalB.psychologicalC.physicalD.social

38.(78)

39.(69)

40.(67)

四、閱讀理解(5題)41.

第

22

題

Theauthorimpliesinthesecondparagraphthat__________．

42.

第

37

題

haswonthenationalaward?__________

43.

第

35

題

theapproachestoresearchshouldbeadjustedtothechangingsituation?__________

44.

第

29

題

4._________

45.

第

25

題

Thevalueofcompetitionworksagainstthespiritofnationalcooperationinthat__________．

參考答案

1.Tospeakslowly．

2.B

3.A

4.A

5.A

6.highlysubjectiveWay

7.B

8.B

9.Asindividuals

10.A

11.Totakeinformation

12.C

13.A

14.A

15.WorldsofTime

16.callscalls解析：此句意為“他把這種缺乏禮節(jié)的行為稱作是一種無意識的無禮”。call+雙賓語結構，以為“把…稱為”，所以此處填“calls”。

17.andand解析：“both…and…”為固定搭配，“兩者都”。所以此處應填“and”。

18.areare解析：分析句子結構，這里缺少系動詞be來構成動詞的被動形式。故答案為are。

19.whichwhich解析：由此句句子成分分析，此空以后的應為定語從句，修飾characteristics，所以此空應填which，引導定語從句。

20.andand解析：這三個分詞短語是并列的，故中間的連詞只能用and。

21.whowho解析：此空后的句子應為teacher的定語從句，故此空處應填who，引導修飾人的定語從句。

22.stillstill解析：本句意為“但是空氣污染，盡管它…是最危險的，但也只是幾種攻擊最基本生活功能的污染方式之一?！憋@然，可知此空應填“仍然”。

23.beingbeing解析：avoiddoingsth．意為“避免…”，avoid后必須跟名詞或動名詞。beovercritical意為“過分挑剔的”。

24.toto解析：“attributeto”意為“把某事歸因于”，為固定搭配，所以此處應填“to”。

25.fromfrom解析：“來自…的數(shù)據(jù)”，要用介詞“from”。所以此處應填“from”。

26.C解析：由第二段最后一句“Toreceiveareturnontheirinvestment，wisecorporateexecutiveofficersarerealizingwhatindustrialistsandagriculturistslearnedlongago--efficienttoolsareessentialforincreasedproductivity．”可知。

27.A解析：由整篇文章可知，本文主要傳達的信息為“食鹽致病理論沒有道理”。

28.D解析：第四段提到基因療法遭受的一起挫折——一個病人因接受基因療法而死亡；接著講專家擔心運動員利用基因在比賽中作弊會進一步tarnish這一領域，從上下文邏輯推理，應該是“有損，玷污”這一類的意思，因此正確答案為D。

29.D解析：由文章最后一段中的“Thepositivesideofitistherearebetterproducts--they’recheaperandmoreflexible．”可知。

30.B解析：從文章的第三段可以看出，“Homepricesareholdingsteadyinmostregions.”作者在這一段主要說明房子等不動產(chǎn)的價格、利潤等方面，所以“the$4millionto$10millionrange”說的是不動產(chǎn)。故應選B。

31.A解析：由全文看，作者在講述一種觀點：當聯(lián)合國(UN)猶豫不決時，第三世界已經(jīng)采取了行動。

32.A解析：“這些區(qū)別”指的是什么?短文第五段主題句說“Butitisn'tallthateasytoexplaintheactualdifferencesbetweenskillsofmenandwomenonthisbasis．”即在此基礎上解釋兩性技能的區(qū)別并不是很容易的事。由此可見，“這些區(qū)別”指的是兩性技能。所以本題應選A。

33.C解析：文章第二段對于基因治療的方式的解釋是用于治療的基因通過“virusesthatdon'tcausehumandisease”進入體內(nèi)，就好像“特洛伊木馬”一樣，由此可見，這些病毒是無害的。因此正確答案為C。

34.A解析：由A中第二段第一句“Intheseniorschool，two-thirdsofthepupilsareboarders，andboardingisavailablefromtheageof11．”可知。

35.CC解析：由此處上段的“therewasanothertransition…theywerereplacedbythemillandtheassemblyline.”可知，工業(yè)革命以后，人們不需要象以前那樣賣力氣的工作了。而后面選項中的“westandatthebrinkofachange…”說明了此事，故應選C。

36.B解析：由第四段中的“Thehorsesarelessaffectedthanamanwouldbe，andwhentheelectriceelshaveexhaustedthemselves，theycallbecaughtwithoutdanger．”可知。

37.D解析：根據(jù)這篇文章，普遍認為大腦的區(qū)別由什么因素引起的?短文第三段倒數(shù)第二句話說“Wetendtothinkthatistheinfluenceofsocietythatproducesthesedifferences．”即我們認為社會的影響造成了這些區(qū)別。A、B、C均不符合題意。所以本題應選D。

38.A解析：由A中的最后一句話“…withafictionalTVwitchbeingplayedbyanhonest—to—Godreallifewitch．”可知。

39.FF解析：由此空上下文可以看出，選項中只有F放在此處符合邏輯，上下文才能連貫。

40.BB解析：由下一段第一句中提到的“tomato”可知只有B中“Supporterssaythetomato”與之對應。

41.A文中提到“．．．urgedcautioninensuringthateffortstoprotectournationdonotresultinbroadgovernmentauthoritytoerodeprivacyrightsofU．S．citizens．”其意思是“保護國家的利益也不應該傷害美國居民的個人隱私權利”，可知作者認為這項提議是不公正的。故應選A。

42.BB中提到“TheaccoladeofwinningtheSchoolsCurriculumAwardinl997gaveEdgehillnationalrecognitionand．recently．．．”。

43.D由D中的第三段“Inthesecondpart，thediscussionisextendedtoincludethepossibilitiesofpreventingorabatingemissionsinrelationtothreemodels：．．．”可知。

44.C由下一段“FirstIhadtoregistermy…”可知，此處填“IwaslookingforaguitarandthisiswhatIdid．”正好與下文銜接。

45.B文章最后一段第二句話“Competitionsometimesencouragesfeelingsofsuspicionratherthanthemutualtrustthatisnecessaryforsuccessfulnationalcooperation．”說明競爭有時會助長懷疑的意識，而不是合作需要的相互信任。故應選B。2021-2022年湖北省武漢市公共英語五級(筆試)模擬考試(含答案)學校:________班級:________姓名:________考號:________

一、1.ListeningComprehension(15題)1.What'soneofthebestwaystohelpyouraudience?

2.MDdecidescompany'spoliciesandcarriesthemout．

A.RightB.Wrong

3.Meatsalsocontainwater.

A.TrueB.Fasle

4.HowhigharethemountainsinNorweija?

A.Twothousandfeet.

B.Twelvethousandfeet.

C.Twentythousandfeet.

D.Twenty-twothousandfeet.

5.Dr.WilsonasksWangtodoalittlemoreresearchbeforedecidingonhisproject.

A.RightB.Wrong

6.Thepast-orientedpeopletendtolookattheworldina______．

7.Thefrontdoortohishomedoesnotopenautomatically.

A.TrueB.Fasle

8.WhichofthefollowingstatementsisNOTTRUE?

A.Gettingofftoworkwithaminimumefforthelpssaveone'senergy.

B.Dr.Kleimanexplainswhypeoplereachtheirpeaksatdifferenthoursofaday.

C.Habithelpsapersonadapttohisownenergycycle.

D.Childrenhaveenergycycles,too.

9.Accordingtothespeaker,whatdoesamanagerhavetotreateveryoneofhisstaffas?

10.Mr.Millerenjoysdoingthingswithhisownhands.

A.TrueB.Fasle

11.Afterdeliveringthenewinformation,whyshouldthespeakeralsogivehisaudiencesometime?

12.WhichofthefollowingCanbecalledasa“l(fā)ameduck”?

A.Adisabledlittlechild．

B.Ahard-workingfarmer．

C.Apoliticianwhohastocometotheendofhispower．

D.Anabsent-mindedoldprofessor．

13.MostpeopleinthemountainsofEduadordrinkalotofcoffeeandalcohol,buttheystilllivelong.

A.TrueB.Fasle

14.Accordingtothelecture,whatisinflation?

A.Risingprices.

B.Fixedincome.

C.Realincome.

D.Costofliving.

15.Dr．MannisnowinCambridge，writingabookonthe______．

二、2.UseofEnglish(10題)16.

【C10】

17.(43)

18.(41)

19.

【C11】

20.

【C17】

21.

【C15】

22.

【C7】

23.(40)

24.(44)

25.(48)

三、3.ReadingComprehension(15題)26.

Today'scorporateexecutiveofficersresembletheindustrialistsandagriculturistsinthepastintheirrealizationof______.

A.theessentialrolesoftheworkersinturningoutmoreproducts

B.theimportanceofinformationtoacompany'sdevelopment

C.theimportanceoftechnologyleadingtohighemployeeproductivity

D.thenecessityofprovidingemployeeswithacomfortableenvironment

27.

Whatisthemainmessageofthistext?

A.Thatthesaltscareisnotjustified.

B.Thattheorginofhypertensionisnowfound.

C.Thatthemoderateuseofsaltisrecommended.

D.Thatsaltconsumptionistobepromoted.

28.

Theword"tarnish"(line4,paragraph4)mostprobablymeans______.

A.affectB.warnC.troubleD.stain

29.

Whichofthefollowingstatementsistrueaboutinsuranceproducts?

A.Peoplehavenochoicewhenbuyinginsuranceproducts.

B.Thereweresomanychoicesininsuranceproductsinthepastthatpeoplefounditdifficulttomakeadecision.

C.Therearenobetterandcheaperinsuranceproducts.

D.Itisbetterforpeopletohavesomanyinsuranceproductstochoose.

30.

Whenmentioning“the$4millionto$10millionrange”(Line3-4,Paragraph3)theauthoristalkingabout______.

A.goldmarket

B.realestate

C.stockexchange

D.ventureinvestment

31.

Whichofthefollowingbestsummarizesthetext?

A.AstheUNhesitates,thepoortakeaction.

B.ProgressinenvironmentalprotectionhasbeenmadesincetheRioSummit.

C.Climatechangescannolongerbeneglected.

D.Thedeclineofearth'slife-supportsystemshasbeenhalted.

32.

"Thesedifferences"inparagraph5refertothosein______.

A.skillsofmenandwomen

B.schoolsubjects

C.thebrainstructureofmenandwomen

D.activitiescarriedoutbythebrain

33.

Whichofthefollowingistrueaccordingtothetext?

A.Ashanthineedstoreceivegene-therapytreatmentconstantly.

B.Despitethehugefunding,generesearcheshaveshownfewpromises.

C.Therapeuticgenesarecarriedbyharmlessviruses.

D.Gene-dopingisencouragedbyworldagenciestohelpathletesgetbetterscores.

34.(75)

35.PartB

Directions:Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66-70,choosethemostsuitableparagraphfromthelistA-Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.MarkyouranswersonANSWERSHEET1.

Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66～70,choosethemostsuitableparagraphfromthelistA～Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.

A．Thereremained,however,the“easier”labor—thelaborthatrequiredthehumaneyes,ears,judgmentandmindbutnosweating.Itneverthelesshaditsmiseries,forittendedtobedull,repetitious,andboring.Andthereisalwaysthesoursenseofendlesslydoingsomething.unpleasantundercompulsion.

B．Foronething,muchofhumaneffortthatistodayputinto“mimingtheworld”willbeunnecessary.Withcomputers,robotsandautomation,agreatdealofthedailygrindwillappeartoberunningitself.Thisisnothingstartling.ItisatrendthathasbeenrapidlyonitswayeversinceWorldWarⅡ.

C．Andnowwestandatthebrinkofachangethatwillbethegreatestofall,forworkinitsoldsensewilldisappearaltogether.Tomostpeople,workhasalwaysbeenanefforffulexercisingofmindorbody—compelledbythebitternecessityofearningthenecessitiesoflife—plusanoccasionalperiodofleisureinwhichtorestorhavefun.

D．Clearlytherewillbeapainfulperiodoftransition,onethatisstartingalready,andonethatwillbeinfullswingasthe21stcenturybegins.

E．Inthefirstplace,thecomputeragewillintroduceatotalrevolutioninournotionsofeducation,andisbeginningtodosonow.Thecomingofthecomputerwillmakelearningfun,andasuccessfullystimulatedmindwilllearnquickly.Itwillundoubtedlyturnoutthatthe“average”childismuchmoreintelligentandcreativethanwegenerallysuppose.Therewasatime,afterall,whentheabilitytoreadandwritewasconfinedtoaverysmallgroupof“scholars”andalmostallofthemwouldhavescoutedthenotionthatjustaboutanyonecouldlearntheintricaciesofliteracy.Yetwithmasseducationgeneralliteracycametobeafact.

F．Thismeansthatthedull,theboring,therepetitious,themind-stultifyingworkwillbegintodisappearfromthejobmarket—isalreadybeginningtodisappear.This,ofcourse,willintroducetwovitalsetsofproblem—isalreadyintroducingthem.

Periodicallyinhistory,therecomeperiodsofgreattransitioninwhichworkchangesitsmeaning.Therewasatime,perhaps10,000yearsago,whenhumanbeingsstoppedfeedingthemselvesbyhuntinggameandgatheringplants.andincreasinglyturnedtoagriculture.Inaway,thatrepresentedtheinventionof“work”.

Then,inthelatterdecadesofthe18thcentury,astheIndustrialRevolutionbeganinGreatBritain,therewasanothertransitioninwhichthesymbolsofworkwerenolongerthehoeandtheplow;theywerereplacedbythemillandtheassemblyline.66．______

WiththeIndustrialRevolution,machinery—poweredfirstbysteam,thenbyelectricityandinternalcombustionengines—tookoverthehardphysicaltasksandrelievedthestrainonhumanandanimalmuscles.

67．______

Andyet,suchjobshavebeencharacteristicofthehumanconditioninthefirstthree-quartersofthe20thcentury.They'vemadetoolittledemandonthehumanmindandspirittokeepthemfreshandalive,madetoomuchdemandforanymachinetoservethepurposeuntilnow.

Theelectroniccomputer,inventedinthe1940'sandimprovedatbreakneckspeed,wasamachinethat,forthefirsttime,seemedcapableofdoingworkthathaduntilthenbeenthepreserveofthehumanmind．Withthecoming

36.

Whyarehorsesusedtocatchtheelectriceels?

A.Tofrightentheeels.

B.Toexhausttheeels.

C.Toattracttheeels.

D.Tostirthewater.

37.

Accordingtothepassageitiscommonlybelievedthatbraindifferencesarecausedby______factors.

A.biologicalB.psychologicalC.physicalD.social

38.(78)

39.(69)

40.(67)

四、閱讀理解(5題)41.

第

22

題

Theauthorimpliesinthesecondparagraphthat__________．

42.

第

37

題

haswonthenationalaward?__________

43.

第

35

題

theapproachestoresearchshouldbeadjustedtothechangingsituation?__________

44.

第

29

題

4._________

45.

第

25

題

Thevalueofcompetitionworksagainstthespiritofnationalcooperationinthat__________．

參考答案

1.Tospeakslowly．

2.B

3.A

4.A

5.A

6.highlysubjectiveWay

7.B

8.B

9.Asindividuals

10.A

11.Totakeinformation

12.C

13.A

14.A

15.WorldsofTime

16.callscalls解析：此句意為“他把這種缺乏禮節(jié)的行為稱作是一種無意識的無禮”。call+雙賓語結構，以為“把…稱為”，所以此處填“calls”。

17.andand解析：“both…and…”為固定搭配，“兩者都”。所以此處應填“and”。

18.areare解析：分析句子結構，這里缺少系動詞be來構成動詞的被動形式。故答案為are。

19.whichwhich解析：由此句句子成分分析，此空以后的應為定語從句，修飾characteristics，所以此空應填which，引導定語從句。

20.andand解析：這三個分詞短語是并列的，故中間的連詞只能用and。

21.whowho解析：此空后的句子應為teacher的定語從句，故此空處應填who，引導修飾人的定語從句。

22.stillstill解析：本句意為“但是空氣污染，盡管它…是最危險的，但也只是幾種攻擊最基本生活功能的污染方式之一。”顯然，可知此空應填“仍然”。

23.beingbeing解析：avoiddoingsth．意為“避免…”，avoid后必須跟名詞或動名詞。beovercritical意為“過分挑剔的”。

24.toto解析：“attributeto”意為“把某事歸因于”，為固定搭配，所以此處應填“to”。

25.fromfrom解析：“來自…的數(shù)據(jù)”，要用介詞“from”。所以此處應填“from”。

26.C解析：由第二段最后一句“Toreceiveareturnontheirinvestment，wisecorporateexecutiveofficersarerealizingwhatindustrialistsandagriculturistslearnedlongago--efficienttoolsareessentialforincreasedproductivity．”可知。

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