高三上册英语期中试卷及答案-文档

高三上册英语期中试卷及答案第一节单项填空（共15小题；每小题1分，满分15分）

从A，B，C，D四个选项中，选出可以填入空白处的选项，并在答题卡上将该项涂黑

21．Whenagiraffe(长颈鹿)has_____drink,ithastostandwithitsfrontlegswideapartinordertoreach_____water.

A./;/B.a;theC.the;/D./;the

22．—Excuseme,sir.Doyouhavethetime?

—_______,itisthreethirteen.

A.I’mafraidnotB.No,I’mbusy

C.Why,yeahD.What

23．Thepartylastmonthreallygivemealotoffun.SoMrJames,canwehave____thismonth?

A.anotherB.oneC.itD.other

24．—Tom,youaresolate.Yououghttohavefinishedtheworkhoursago.

—Sorry,Iknowit_______.

A.shouldbeB.musthavebeen

C.oughttohavedoneD.shouldhavebeen

25．—Howmuchwillit________myfatherandmetogotoChicago?

—It’s120inall.

A.payforB.takeasC.spendD.costfor

26．Neverbefore____sohighlysuccessfulinhisattemptstochangeslightlytheweatheronaverysmallscale.

A.manhasbeenB.hasmanbeen

C.willbemanD.manis

27．Wecan’twait.Wehaveto____thedirectionandthedistancebeforewetakeaction.

A.pulloutB.figureoutC.thinkoutD.turnout

28．Thefamousprofessorhasreceivedtheletter___togivealectureinPrincetonInstitute.

A.beinginvitedB.tobeinvitedC.invitinghimD.invited

29．WasitattheaidbattleonJune8,1994,______wasledbyCaptainJohnson____Peterlosthislife.

A.when;thatB.that;whoC.which;thatD.that;when

30．Generallyspeaking,themusicofonecountryisquitealotin____withitsculture.

A.useB.commonC.orderD.same

31．I’veneverseenanyonerunsofast------______Davidgo

A.JustwatchB.Justtowatch

C.JustwatchingD.Justhavingwatched

32．Thelittleboyisdirtyfromheadtofootbecausehe________inthemudallmorning.

A.hasplayedB.isplaying

C.hasbeenplayingD.wasplaying

33．Thenewdictionariesareveryuseful.They________welland________already.

A.sell;havebeensoldoutB.sold;hadsoldout

C.sell;selloutD.aresold;havebeensoldout

34．You___payyourfineforspeeding.Ifnot,you_____notbeallowedtotakebackyourlicense.

A.should;canB.must;willC.need;shallD.can;must

35.TherefellaheavysnowlastDecember,andthisyear_________agoodharvest.

A.provesB.meansC.allowsD.promises

第二节完形填空（共20小题；每小题1.5分，满分30分）

阅读下面短文，掌握其大意，然后从36-55各题所给的四个选项（A，B，C和D）中，选出选项。

It’shardbeinganastronaut’sson.I_36_,everybodyexpectsyoutobespecialor__37__,andI’mjustanaveragestudent,andI’maverage,too,whenit__38__basketball,football,soccer,andbaseball.

Ioftenwonder_39__myfathereverhadasonlikeme.Imeanhe’sso__40_andsogoodateverything.SoIusedtodreamaboutdoingsomethingspectacularto___41_myfatherandmakehim_42__me.

Inoneclass,myteacher__43__aFather’sDayessaycontestforusandthewinners’essayswouldbereadinfrontofalltheparentsandstudents.AfterschoolIwalkedhome,__44_myfather,whoIwouldwriteaboutinmyessay.

Hesatwithmeinthe___45_whenIwasalittlekidandhadanightmare.He___46__mewithanewpuppyatmyeighthbirthdayparty.Hesatandtriedto__47__deathtomewhenGrandpaBobdied.Tome,hewasn’taworld-famousastronaut,justmydad.

Iwroteaboutallthese__48_inmyessay.

Oneofourneighborssaid,“I__49__you’llwinthecontest,David.You'retheonlyoneintownwhocouldwriteaboutbeingthesonofanastronaut.”

I__50__Ihadn’tshownanyonetheessay,butnowIalmosthopedIwouldn’twin.Ididn’twanttowinjust__51__myfatherwasanastronaut.

Iwonthesecondprize.WhenIfinishedreadingmyessay,the__52__applauded.Isawmyfatherblowinghisnose.Iwentbacktomyseat.

Dadnoddedtome,__53__histhroat,andputhishandonmyshoulder.“Son,thisisthe__54___momentofmylife,”hesaid.

Itwastheproudestmomentofmylife,too.MaybeI’llneverbeagreatheroorwinaNobelPrize,butjustthen,itwas__55__justtobemyfather’sson.

36.A.meanB.sayC.knowD.believe

37.A.strangeB.honestC.perfectD.formal

38.A.referstoB.relateswithC.talksaboutD.comesto

39.A.whyB.howC.whetherD.when

40.A.normalB.funnyC.specialD.unique

41.A.shockB.influenceC.attractD.impress

42.A.proudofB.interestedinC.satisfiedwithD.ashamedof

43.A.reportedB.announcedC.claimedD.warned

44.A.caringaboutB.worryingaboutC.thinkingaboutD.complainingabout

45.A.silenceB.threatC.horrorD.dark

46.A.pleasedB.astonishedC.supportedD.encouraged

47.A.describeB.explainC.declareD.remark

48.A.experimentsB.incidentsC.detailsD.memories

49.A.wishB.guessC.betD.promise

50.A.smiledB.noddedC.doubtedD.shrugged

51.A.becauseB.ifC.whileD.as

52.A.parentsB.audiencesC.studentsD.teachers

53.A.cleanedB.blewC.clearedD.opened

54.A.bestB.proudestC.finestD.greatest

55.A.naturalB.honorableC.importantD.enough

第三部分：阅读理解（共20小题；每小题2分，满分40分）

阅读下列短文，从每题所给的四个选项（A，B，C和D）中，选出选项。

(A)

Someresearchersclaimthatpeople′spersonalitiescanbeclassifiedbytheirbloodtypes.IfyouhavebloodtypeO,youarealeader.Whenyouseesomethingyouwant,youstrivetoachieveyourgoal.Youarepassionate,loyal,andself-confident,andyouareoftenatrendsetter.Yourenthusiasmforprojectsandgoalsspreadstootherswhohappilyfollowyourlead.Whenyouwantsomething,youmayberuthlessaboutgettingitorblindtohowyouractionsaffectothers.Anotherbloodtype,A,isasocial,“people”person.Youlikepeopleandworkwellwiththem.Youaresensitive,patient,compassionate,andaffectionate.Youareagoodpeacekeeperbecauseyouwanteverybodytobehappy.Inateamsituation,youresolveconflictsandkeepthingsonasmoothcourse.SometimestypeAsarestubbornandfinditdifferenttorelax.Theymayalsofindituncomfortabletodothingsalone.

PeoplewithtypeBbloodareusuallyindividualistswholiketodothingsontheirown.Youmaybecreativeandadaptable,andyouusuallysayexactlywhatyoumean.Alsoyoucanadapttosituations,youmaynotchoosetodosobecauseofyourstrongindependentstreak.Youmaypreferworkingonyourowntobeingpartofateam.ThefinalbloodtypeistypeAB.IfyouhaveABblood,youareanaturalentertainer.Youdrawpeopletoyourbecauseofyourcharmandeasygoingnature.ABsareusuallycalmandcontrolled,tactfulandfair.Onthedownside,though,theymaytaketoolongtomakedecisions.Andtheymayprocrastinate,puttingofftasksuntilthelastminute.

56.PeoplewithtypeOwilldothefollowingthingsexcept____.

A.directaboardB.burnthenight′soil

C.beconsiderateD.self-oriented

57.WhichofthefollowingisnotthefeatureoftypeA?

A.Stubborn.B.Sensitive.C.Reserved.D.Patient.

58.WhatisNottruetotypeB?

A.Helikestoworkbyhimself.

B.Hedoesn’tthinkmuchbeforehespeaks.

C.Hehasmanyoriginalideas.

D.Hecannotfitinwiththeenvironment.

59.ThebestprofessionforatypeABis____.

A.MusicianB.PeacekeeperC.ActorD.Spokesman

(B)

Thefollowingarefourformsaboutmedicine.Howtousethemedicineisveryimportant.Nevertakeanybymistake.

1）Takethemedicinewithwater,followedbyonetableteveryeighthours,asrequired.Forfurthernight-timeandearlymorning,taketwotabletsatbedtime.Donottakemorethansixtabletsin24hours.ForChildrensixtotwelveyearsold,gotoyourdoctorforadvice.Reducedosageifnervousness,restlessnessorsleeplessnesstakesplace.

2）Eachpillofthemedicinetakenthreetimeseverydayforfourteenyearsold.Asusual,apill6∶00a.m.,beforebreakfast,onebefore11∶00andonebeforesleep.Notforchildrenundersixyearsoldandoldpersonswithheartattack.

3）Themedicineforapersonwithafever.Oncetwopillsadaybeforesleepforadult.Nottakethemedicinewithoutfever.HalfforChildrenunder12yearsold.Childrenwithahighfever,gotoseeadoctor.

4）Themedicinetakenthreetimesaday,oncefivepillsforadultwithacold.Halfofthepillsforchildren10yearsold.Takethemedicinebeforebreakfast,lunch,supperorbeforesleep.

60．Obviouslyakindofmedicinecan’tbeproperfor________,judgingfromtheinformation.

A.childrenovertwelveyearsold

B.someoldpersonswithafever

C.someoldpersonswithheartattack

D.neitheradultsnorheartattack

61．Whenapersonhasacold,hehadbetter________.

A.haveaboutmorethanfourteenpillsaday

B.havetwiceaday

C.havefourtimesaday

D.haveninepillsaday

62．Howmanykindsofmedicineareusedforthechildrensixyearsold?

A.Allofthem．

B.Threekindsofmedicine.

C.Twokindsofmedicine.

D.Almostnotanymedicine.

(C)

Globalwarmingthreatenstoholdbackhumanprogress,andmakeunachievableallUNtargetstoreducepoverty,accordingtosomeoftheworld’sleadinginternationalanddevelopmentgroups.

Inareportpublishedtoday,Oxfam,Greenpeace,ChristianAid,FriendsoftheEarth,WWFand15othergroupssayrichgovernmentsmustimmediatelyaddressclimatechangetoavoideven“unbearablelevels”ofworldwidepoverty.

“Foodproduction,watersupplies,publichealthandpeople’slivingenvironmentarealreadybeingdamaged,”thereportsays.“Theworldmustmeetitspromisetoachievepovertyreductionandalsodealwithclimatechange.”

Thereport,whichdrawsonUNpredictionsoftheeffectsofclimatechangeinpoorcountriesoverthenext50years,sayspoorcountrieswillexperiencemoreflooding,decliningfoodproduction,morediseaseandtheworseningordisappearingofentireecosystems(生态系统)onwhichmanyoftheworld’spoorestpeopledepend.

“Climatechangeneedstobeaddressednow.Thepoorwillbeartheburdenofit.Thefrontlineexperienceofmanyofusworkingininternationaldevelopmentindicatesthatcommunitiesarehavingtofightagainstmoreextremeweatherconditions.”

Climatechangewillplayhavoc(浩劫)withagricultureandwatersuppliesandwillincreasediseases.“By2025theproportionoftheworld’spopulationlivingincountriesofgreatwaterstresswillalmostdouble,to6billionpeople.Tropicalandsub-tropicalareaswillbehardesthit—thosecountriesalreadysufferingfromfoodshortage”.

Poorcountriesmostlydonotneedhigh-techsolutions,butwouldmostbenefitfromeducation,researchandbeingshownhowtofarmbetter.Thereportsaysuncheckedglobalwarming,morethanwarsorpoliticalconfusion,willdisplacemillionsofpeopleanddestabilize(不安定)manycountries.

63.________shouldplayaleadingroleinresistingthemoreextremeweatherconditionsaccordingtothereport.

A.InternationalgroupsB.Poorcountries

C.RichcountriesD.Tropicalandsub-tropicalcountries

64.Whichofthefollowingisnottheeffectofglobalwarmingaccordingtothereport?

A.Morenaturaldisastersandstarvation.

B.Increasingtheworld’spopulation.

C.Makingmillionsofpeoplemovetootherplaces.

D.Shakingthefoundationofacountry.

65.Whichofthefollowingisnottrueaccordingtothetext?

A.Povertyandclimatechangearecloselylinked.

B.Moreandmorepeoplewillsufferfromthewaterstressandfoodshortage.

C.Whatthepoorcountriesneedbadlyishightechnology.

D.Internationalcommunitieshavetotakestepstoresistthebadclimate.

66.Whatisthebesttitleofthepassage?

A.InternationalDevelopmentBringsinClimateChange

B.GlobalWarmingIsaBiggerThreattoPoor

C.InternationalGroupsWorkTogethertoReducePoverty

D.WorldwidePovertyShallBeAvoided

(D)

Americaisgrowingolder.Fifty-eightyearsago,only4outofevery100peopleintheUnitedStateswere65orolder.Today,10outofevery100Americansareover65.Theagingofthepopulationwillaffect（影响）Americansocietyinmanyways—education,medicine,andbusiness.Quietly,thegrayingofAmericahasmadeusaverydifferentsociety—oneinwhichpeoplehaveaquitedifferentideaofwhatkindofbehavior（行为）issuitable（合适）atvarious,ages.

Apersonsagenolongertellsyouanythingabouthis/hersocialposition,marriageorhealth.There’snolongeraparticularyearinwhichonegoestoschoolorgoestoworkorgetsmarriedorstartsafamily.Thesocialclockthatkeptusontimeandtolduswhentogotoschool,getajob,orstopworkingisn’tasstrongasitusedtobe.Itdoesn’tsurpriseustohearofa29-year-olduniversitypresidentora35-year-oldgrandmother,ora70year-oldmanwhohasbecomeafatherforthefirsttime.Publicideasarechanging.

Manypeoplesay,“Iammuchyoungerthanmymother—ormyfather—wasatmyage.”Noonesays“Actyourage”anymore.We’vestoppedlookingwithsurpriseatolderpeoplewhoactinyouthfulways.

67．ItcanbelearntfromthetextthattheagingofthepopulationinAmerica________.

A.hasmadepeoplefeelyounger

B.haschangedpeople’ssocialposition

C.haschangedpeople’sunderstandingofage

D.hassloweddownthecountry’ssocialdevelopment

68．Theunderlinedword“one”refersto________.

A.asocietyB.America

C.aplaceD.population

69．“Actyourage”meanspeopleshould________.

A.beactivewhentheyareold

B.dotherightthingattherightage

C.showrespectfortheirparentsyoungorold

D.takemorephysicalexercisesuitabletotheirage

70．Ifa25-year-oldmanbecomesgeneralmanagerofabigfirm,thewriterofthetextwouldmostprobablyconsiderit________.

A.normalB.wonderful

C.unbelievableD.unreasonable

(E)

Thewaypeopleholdtothebeliefthatafun-filled,painfreelifeequalshappinessactuallyreducestheirchancesofeverattainingrealhappiness.Iffunandpleasureareequaltohappinessthenpainmustbeequaltounhappiness.Butinfact,theoppositeistrue:moreoftenthannotthingsthatleadtohappinessinvolvesomepain.

Asaresult,manypeopleavoidtheveryattemptsthatarethesourceoftruehappiness.Theyfearthepaininevitablybroughtbysuchthingsasmarriage,raisingchildren,professionalachievement,religiouscommitment（预担的义务）,self-improvement.

Askabachelor（单身汉）whyheresistsmarriageeventhoughhefindsdatingtobelessandlesssatisfying.Ifheishonesthewilltellyouthatheisafraidofmakingacommitment.Forcommitmentisinfactquitepainful.Thesinglelifeisfilledwithfun,adventure,excitement.Marriagehassuchmoments,buttheyarenotitsmostdistinguishingfeatures.

Coupleswithinfantchildrenareluckytogetawholenight’ssleeporathree-dayvacation.Idon’tknowanyparentwhowouldchoosethewordfuntodescriberaisingchildren.Butcoupleswhodecidenottohavechildrenneverknowthejoysofwatchingachildgrowuporofplayingwithagrandchild.

Understandingandacceptingthattruehappinesshasnothingtodowithfunisoneofthemostliberatingrealizations.Itliberatestime:nowwecandevotemorehourstoactivitiesthatcangenuinelyincreaseourhappiness.Itliberatesmoney:buyingthatnewcarorthosefancyclothesthatwilldonothingtoincreaseourhappinessnowseemspointless.Anditliberatesusfromenvy:wenowunderstandthatallthosewhoarealwayshavingsomuchfunactuallymaynotbehappyatall.

71．Accordingtotheauthor,abachelorresistsmarriagechieflybecause________.

A.heisreluctanttotakeonfamilyresponsibilities

B.hebelievesthatlifewillbemorecheerfulifheremainssingle

C.hefindsmorefunindatingthaninmarriage

D.hefearsitwillputanendtoallhisfunadventureandexcitement

72．Raisingchildren,intheauthor’sopinionis________.

A.amoralduty

B.athanklessjob

C.arewardingtask

D.asourceofinevitablepain

73．Fromthelastparagraph,welearnthatenvysometimesstemsfrom________.

A.hatredB.misunderstanding

C.prejudiceD.ignorance

74．Tounderstandwhattruehappinessisonemust________.

A.haveasmuchfunaspossibleduringone’slifetime

B.makeeveryefforttoliberateoneselffrompain

C.putupwithpainunderallcircumstances

D.beabletodistinguishhappinessfromfun

75．Whatistheauthortryingtotellus?

A.Happinessoftengoeshandinhandwithpain．

B.Onemustknowhowtoattainhappiness.

C.Itisimportanttomakecommitments.

D.Itispainthatleadstohappiness.

第Ⅱ卷（共35分）

第四部分：写作（共两节，满分35分）

第一节：对话填空

阅读下面对话，掌握其大意，并根据所给首字母的提示，在标有题号的右边横线上写出一个英语单词的完整、正确形式，使对话通顺。

W:Tellme,Jack.Doyoulookt1theWebmuch?

M:Well,totellyouthet2,I’msobusywithwork.Idon’treallyhavemuchtimetos3theWeb.Letmethink…Is4Ilogonacoupleoftimesaweek,forabouttwoorthreehours.

W:So,Whatdoyoudoo5theInternetwhenyoulogon?

M:WellIdoalittlee-mailing.Ionlygetabouttwoorthreee-mailsaweek.

ActuallyIp__6writingrealletters,withpenandpaper.

W:Yeah,I’mthesameway.Anythinge7youdoontheInternet?

M:Well,sometimesIlookupi8Ineedformyjob.Its9alotoftimelookingthroughbooksinlibraries.

W:Yes,itsured10.

第二节：作文

可持续发展已成为全球共识，如何实行可持续发展是摆在世人面前的重大问题。请就下面表格所提供的内容进行陈述并谈谈你的看法。

目前的状况

1．自然资源日趋减少

2．环境问题依然严重

3．人的环保观念淡薄

4．贫富差距越来越大

已采取的措施

1．制定了相关的法律法规

2．投入了大量的资金改善环境

3．对民众进行教育

4．加强了国际间相互合作

你的看法

……

注意：

1．不要逐条翻译。

2.可适当发挥

3.词数：150左右

4.文章的开头部分以给出

5.参考词汇：差距gap相关法律relevantlaws

Theideaofsustainabledevelopmenthasbeenacceptedbytheworld.Howtokeepsustainabledevelopmentisabigproblemfacingourplanet,…

____________________________________________________________________________

_________________________________________________________________________________________________________________________________________________________

参考答案及解析：

第二部分：英语知识运用（共两节，满分45分）

第一节单项填空（共15小题；每小题1分，满分15分

21．B.haveadrink（喝水）是固定搭配。Water应是指长颈鹿要喝的水，故前面要加the表示特指。

22．Chavethetime有两个意思，一是“能有时间吗”。二是“知道现在几点了吗”？从答语的后半部分来看，是问时间。所以从对话的语境来看，A、B、D项都不合适。C项中的why是一个表示不耐烦、反驳意义的感叹句，不表示疑问意义。

23．Aanother表示又一，再一

24．D分析句意可知道，该题为虚拟语气结构，表示与过去事实相反，意为应该完成却未完成，含有自我指责的意思。

25．D提示：Itcosts（sb.）somemoneyforsbtodosth.意为“某人做某事花费了一些钱”。还可以说：sthcostssb.somemoney.

26．B由neverbefore可知，句子应该用完成时态，表示否定意义的词放在句首，句子应用部分倒装结构。

27．B提示：pullput火车出站，退出，撤退。Figureout弄清楚。Thinkout想出，设计出。Turnout证明是

28．C提示：现在分词作定语，修饰theletter,表示“信中邀请他…..”的意思。

29．C第一空为非限制性定语从句，用which，指代先行词theairbattle；第二空为强调句型，用that.

30．Bsthincommonwithsb/sth固定搭配

31．A破折号起解释作用，其后应该加一个提示别人看David跑得如何快的祈使句。

32．C提示：由“…isdirty”和“allmorning”可知，小孩一直在玩。过去的动作一直延续到现在并且还在进行应用现在完成进行时表示。

33．A提示：“动词＋副词（well，easily，quickly等）”中的动词不必用被动式，这类动词有read，wash，sell，open，shut，clean，bum，pull，draw等。

34．B提示：第一空表“必须”，第二空表将来。

35．D。区分动词词义：promise意为“预示，有……的希望或征兆”；prove意为“证明(是)，原来是”；mean意为“意味着，打算”；allow意为“允许，承认”。

第二节完形填空（共20小题；每小题1.5分，满分30分）

解读：有一个当宇航员的父亲，生活并不是容易的，人们都期盼你与众不同。在一次作文比赛中作者却不是写当宇航员的父亲，而是写一个生活中的父亲，父亲为此感到自豪。

36．A。用mean来解释前一句的意思。

37．C。perfect杰出的，完美的。此句意为“每个人都认为你应该与众不同或者完美”。

38．D。whenitcomesto说到，谈到，为固定搭配。注意这里it为形式主语。

39．B。句意：我有时候会想父亲怎么会有我这样的儿子呢。

40．C。句意：父亲是如此的特别，擅长任何事。

41．D。impress给人以深刻印象。

42．A。句意：希望能够做出特别的事情来给父亲留下印象，并让他以我为骄傲。

43．B。announce宣布。此处意为：老师向我们宣布了一件事即让我们写关于父亲的作文。

44．C。放学回家的时候，作者想着父亲的一切，决定写什么。

45．D。dark对应nightmare。

46．A。作者八岁生日时，父亲买回小狗，作者感到惊喜。

47．B。作者父亲向他解释死亡是怎么一回事。

48．D。此空上面四句话都属于作者的回忆。

49。C。bet打赌。邻居确信作者会得奖，因为他是一个可以写宇航员父亲的人。

50．D。shrug耸肩，表示不置可否或不同意。

51．A。作者不想因为自己父亲是宇航员才获奖。

52．B。当我读完文章，下面的观众都为我鼓掌。

53．C。父亲清了一下喉咙。说明父亲借此掩饰自己的激动。

54．B。这是作者父亲一生中最自豪的时刻，文章最后一段首句也有暗示。

55．D。虽然不能成为英雄或获得诺贝尔奖，但此时能作为父亲的儿子就足够了。

第三部分：阅读理解

56.C原文谈到O型血的人作领导，会尽力做好想做的事情，又十分自信。但不太在意别人的感受。因而答案选C。

57.C原文第三段有相关信息。

58.D原文第四段说明B型血的人是有适应性并能够适应环境的。

59.C本文最后一段提及AB血型的人是天生的演艺人员。因而答案选C。56．D提示：俄罗斯青年对中国文化感兴趣，总统的一个女儿也在学习汉语，这说明两国关系正常，相互信任。

60．C提示：题干要求判断所给选项中哪类人不适合服用此种药品，根据2）中“NotforChildrenundersixyearsoldandpersonswithheartattake”可知应选C.

61．A提示：根据药品说明书中4）可知，一位患了感冒的成年人，一次可服用此药五片，每日三次，可以在三餐之前或睡觉前服用。由此可排除B、C、D选项，答案为A。

62．D提示：题干考查有多少种药物适合6岁儿童服用，根据药品说明书1）中的“ForChildrensixtotwelveyearsold，gotoyourdoctorforadvice”2）中的“Notforchildrenundersixyearsoldandoldpersonswithheartattack”3）中的“HalfforChildrenunder12yearsold．Childrenwithahighfever，gotoseeadoctor．”可知答案为D。

63.C细节题。根据第二段中的“richgovernmentsmustimmediatelyaddressclimatechangetoavoideven"unbearablelevels"ofworldwidepoverty”一句的意义可知：财力富足的政府必须立即致力于改变日益恶化的气候条件，以免全球范围内的贫穷上升到无法忍受的程度。由此可判断富裕国家应该起主导作用。

64.B归纳题。文章第四段提到：气候变化将导致愈演愈烈的洪灾，不断衰减的粮食生产，疾病的威胁以及整个生态系统的退化甚至消失。文章最后一句又说：尚未得到抑制的全球变暖比战争和政变更可怕，它将迫使数百万人口迁移，动摇很多国家的安定局面。而B项在短文中没有提及。

65.C判断题。短文最后一段表述的意义是：对贫穷的社会来说，它们几乎不需要高科技的解决方案，但是教育、科研以及教授更好地耕作方式将使它们受益最多。此据判断可知。

66.B主旨题。短文第一段第一句就表述了全文的中心，其意义是：据全球主要的国际发展组织推测，全球变暖不但威胁着人类发展的进程，有可能使之倒退，而且联合国所有减少贫穷的目标和计划都将无法实现。由此可简述为：全球气候变暖加剧贫穷。

67．C提示：短文将美国社会拟人化，把age和gray这两个常用作名词的词当做动词用时，比喻美国社会人口的老龄化，并说明了人口老龄化给整个社会，特别是给人们对年龄问题的理解带来的变化。

68．A提示：one用以代替上文中所提到过的一个名词a（different）society，是泛指的用法，并不特指美国社会。

69．B提示：“Actyourage”就是第一段最后一句话中所提到的ideaofwhatkindofbehaviorissuitableatvariousages．在不同的年龄什么样的行为是合适的。

70．A提示：此题为一主观题，要求考生判断作者态度。第二段的最后两句话和最后一段的最后一句都反映了作者的态度，“Itdoesn’tsurpriseustohearof…”和“We’vestoppedlookingwithsurpriseat…”。由于人们对年龄问题的观点的变化，25岁的年轻人成为一家大公司的总经理已不再令人惊讶。

71．A提示：本文是一篇议论文，阐述了幸福的获得这一严肃话题，试图澄清人们在幸福问题上的一些误解。本题要求学生判断单身汉拒绝结婚的主要原因。依据文章第3段第1行“Askabachelorwhyheresistsmarriageeventhoughhefindsdatingtobelessandlesssat