考研考博-英语-兰州科技职业学院考试押题卷含答案详解2

书山有路勤为径，学海无涯苦作舟！住在富人区的她考研考博-英语-兰州科技职业学院考试押题卷含答案详解（图片大小可自由调整）全文为Word可编辑，若为PDF皆为盗版，请谨慎购买！第I卷一.综合题库-全考点押密(共100题)1.单选题

Howmanyreallysufferasaresultoflabormarketproblems?Thisisoneofthemostcriticalyetcontentioussocialpolicyquestions.Inmanyways,oursocialstatisticsexaggeratethedegreeofhardship.Unemploymentdoesnothavethesamedireconsequencestodayasitdidinthe1930’swhenmostoftheunemployedwereprimarybreadwinners,whenincomeandearningswereusuallymuchclosertothemarginofsubsistence,andwhentherewerenocountervailingsocialprogramsforthosefailinginthelabormarket.Increasingaffluence,theriseoffamilieswithmorethanonewageearner,thegrowingpredominanceofsecondaryearnersamongtheunemployed,andimprovedsocialwelfareprotectionhaveunquestionablymitigatedtheconsequencesofjoblessness.Earningsandincomedataalsooverstatethedimensionsofhardship.Amongthemillionswithhourlyearningsatorbelowtheminimumwagelevel,theoverwhelmingmajorityarefrommultiple-earner,relativelyaffluentfamilies.Mostofthosecountedbythepovertystatisticsareelderlyorhandicappedorhavefamilyresponsibilitieswhichkeepthemoutofthelaborforce,sothepovertystatisticsarebynomeansanaccurateindicatoroflabormarketpathologies.

Yettherearealsomanywaysoursocialstatisticsunderestimatethedegreeoflabor-market-relatedhardship.Theunemploymentcountsexcludethemillionsoffullyemployedworkerswhosewagesaresolowthattheirfamiliesremaininpoverty.Lowwagesandrepeatedorprolongedunemploymentfrequentlyinteracttounderminethecapacityforself-support.Sincethenumberexperiencingjoblessnessatsometimeduringtheyearisseveraltimesthenumberunemployedinanymonth,thosewhosufferasaresultofforcedidlenesscanequalorexceedaverageannualunemployment,eventhoughonlyaminorityofthejoblessinanymonthreallysuffer.Foreverypersoncountedinthemonthlyunemploymenttallies,thereisanotherworkingpart-timebecauseoftheinabilitytofindfull-timework,orelseoutsidethelaborforcebutwantingajob.Finally,incometransfersinourcountyhavealwaysfocusedontheelderly,disabled,anddependent,neglectingtheneedsoftheworkingpoor,sothatthedramaticexpansionofcashandin-kindtransfersdoesnotnecessarilymeanthatthosefailinginthelabormarketareadequatelyprotected.

Asaresultofsuchcontradictoryevidence,itisuncertainwhetherthosesufferingseriouslyasaresultoflabormarketproblemsnumberinthehundredsofthousandsorthetensofmillions,andhence,whetherhighlevelsofjoblessnesscanbetoleratedormustbecounteredbyjobcreationandeconomicstimulus.Thereisonlyoneareaofagreementinthisdebate—thattheexistingpoverty,employment,andearningsstatisticsareinadequateforoneoftheirprimaryapplications,measuringtheconsequencesoflabormarketproblems.

1.Whichofthefollowingistheprincipaltopicofthepassage?

2.Theauthoruses“labormarketproblems”inlines1-2torefertowhichofthefollowing?

3.Theauthorcontraststhe1930’swiththepresentinordertoshowthat（）.

4.Whichofthefollowingproposalsbestrespondstotheissuesraisedbytheauthor?

5.Theauthorstatesthatthemitigatingeffectofsocialprogramsinvolvingincometransfersontheincomeleveloflow-incomepeopleisoftennotfeltby（）.

问题1选项

A.Whatcauseslabormarketpathologiesthatresultinsuffering?

B.Whyincomemeasuresareimpreciseinmeasuringdegreesofpoverty?

C.Whichofthecurrentlyusedstatisticalproceduresarethebestforestimatingtheincidenceofhardshipthatisduetounemployment?

D.Howsocialstatisticsgiveanunclearpictureofthedegreeofhardshipcausedbylowwagesandinsufficientemploymentopportunities?

问题2选项

A.Theoverallcausesofpoverty.

B.Deficienciesinthetrainingoftheworkforce.

C.Traderelationshipsamongproducersofgoods.

D.Shortagesofjobsprovidingadequateincome.

问题3选项

A.morepeoplewereunemployedinthe1930’s

B.unemploymentnowhaslesssevereeffects

C.socialprogramsaremoreneedednow

D.therenowisagreaterproportionofelderlyandhandicappedpeopleamongthoseinpoverty

问题4选项

A.Innovativeprogramsusingmultipleapproachesshouldbesetuptoreducethelevelofunemployment.

B.Acompromiseshouldbefoundbetweenthepositionsofthosewhoviewjoblessnessasanevilgreaterthaneconomiccontrolandthosewhoholdtheoppositeview.

C.Newstatisticalindicesshouldbedevelopedtomeasurethedegreetowhichunemploymentandinadequatelypaidemploymentcausesuffering.

D.Considerationshouldbegiventothewaysinwhichstatisticscanactaspartialcausesofthephenomenathattheypurporttomeasure.

问题5选项

A.theemployedpoor

B.dependentchildreninsingle-earnerfamilies

C.workerswhobecomedisabled

D.retiredworkers

【答案】第1题:D

第2题:D

第3题:B

第4题:C

第5题:A

【解析】第1题:主旨大意题。第一段作者提出在很多方面，我们的社会统计夸大了失业的困苦程度。而在第二段又指出然而我们的社会统计也在很多方面低估了劳动力市场相关的困苦。文章主要是针对这俩方面进行分析。因此D项“社会统计如何就由低工资和不充足的雇佣机会导致的困苦程度给出一个不清楚的描写”比较能概括文章大意。

第2题:判断推理题。文章开头提出:Howmanyreallysufferasaresultoflabormarketproblems?(有多少人真的因为劳务市场问题而受苦？)。第二段又指出:Yettherearealsomanywaysoursocialstatisticsunderestimatethedegreeoflabor-market-relatedhardship(然而我们的社会统计也在很多方面低估了劳动力市场相关的困苦)。后面又提及unemployment(失业)和Lowwagesandrepeatedorprolongedunemployment(低工资和反复的或持续很久的失业)。由此可推测，“labormarketproblems”指“缺乏提供充足收入的工作”。

第3题:判断推理题。根据题干可定位至第一段:Unemploymentdoesnothavethesamedireconsequencestodayasitdidinthe1930'swhenmostoftheunemployedwereprimarybreadwinners...(如今的失业没有20世纪30年代的失业那样悲惨的结果，那时大多数的失业者是主要的养家糊口者)。

第4题:判断推理题。题干意为:下列哪一项建议最适合作者提出的问题?最后一段指出:Thereisonlyoneareaofagreementinthisdebate—thattheexistingpoverty,employment,andearningsstatisticsareinadequateforoneoftheirprimaryapplications,measuringtheconsequencesoflabormarketproblems(在这场辩论中，只有一个领域是一致的，那就是现有的贫困、就业和收入统计数据不足以作为衡量劳动力市场问题后果的主要运用之一，（即衡量劳动力市场问题的后果）是不充分的)。由此推测C项“新的统计指标应该被开发来衡量失业和工资支付不足的就业导致的受苦程度”正确。

第5题:判断推理题。题干意为:作者指出，涉及收入转移的社会项目对低收入人群收入水平的缓解作用，往往没有对…受益。Finally,incometransfersinourcountyhavealwaysfocusedontheelderly,disabled,anddependent,neglectingtheneedsoftheworkingpoor(最后，收入转移在我们的国家一直关注老人、残疾人和依靠他人者，从而忽视了上班的穷人的需求…)。由此可推测，A项“被雇佣的穷人”正确。

2.单选题

Certainanimalbehaviors,suchasmatingrituals,seemtobe_______，andtherefore____externalfactorssuchasclimatechanges,foodsupply,orthepresenceofotheranimalsofthesamespecies.

问题1选项

A.learned...immuneto

B.innate...unaffectedby

C.intricate...belongto

D.specific...confusedwith

【答案】B

【解析】形容词词义和动词词组解析。learned“有学问的”；innate“与生俱来的”；intricate“复杂的，错综的”；specific“明确的，详细的”。immuneto“不受……影响的”；unaffectedby“不受影响的”；belongto“属于”；confusedwith“对……困惑”。句意：一些动物的行为，比如交配行为，似乎是与生俱来的，不受外来因素影响的，比如气候变化，食物供给或者同一物种其他动物的存在。选项B符合题意。

3.单选题

Sometimes,whilelivinginaforeigncountry,onecravesaspecialdishfromhome.

问题1选项

A.desires

B.eats

C.prepares

D.orders

【答案】A

【解析】考查词义辨析。crave表示“渴望，恳求”；A项desire“想要，渴望”，B项eat“吃”，C项prepare“准备”，D项order“命令，下单”。句意：生活在异国他乡时，有时会想吃家乡的特色菜。因此A项正确。

4.单选题

Cultureisthetotalsumofallthetraditions,customs,beliefs,andwaysoflifeofagivengroupofhumanbeings.Inthissense,everygrouphasaculture,howeversavage,undeveloped,oruncivilizeditmayseemtous.

Totheprofessionalanthropologist,thereisnointrinsicsuperiorityofonecultureoveranother,justastotheprofessionallinguistthereisnointrinsichierarchyamonglanguages.

Peopleoncethoughtofthelanguagesofbackwardgroupsassavage,undevelopedformsofspeech,consistinglargelyofgruntsandgroans.Whileitispossiblethatlanguageingeneralbeganasaseriesofgruntsandgroans,itisafactestablishedbythestudyof“backward”languagesthatnospokentongueanswersthatdescriptiontoday.Mostlanguagesofuncivilizedgroupsare,byourmostseverestandards,extremelycomplex,delicate,andingeniouspiecesofmachineryforthetransferofideas.TheyfallbehindourWesternlanguagesnotintheirsoundpatternsorgrammaticalstructures,whichusuallyfullyadequateforalllanguageneeds,butonlyintheirvocabularies,whichreflectstheobjectsandactivitiesknowntotheirspeakers.Eveninthisdepartment,however,twothingsaretobenoted:1.Alllanguagesseemtopossessthemachineryforvocabularyexpansion,eitherbyputtingtogetherwordsalreadyinexistenceorbyborrowingthemfromotherlanguagesandadaptingthemtotheirownsystem.2.Theobjectsandactivitiesrequiringnamesanddistinctionsin“backward”languages,whiledifferentfromours,areoftensurprisinglynumerousandcomplicated.Anaccidentallanguagedistinguishesmerelybetweentwodegreesofremoteness(“this”and“that”);somelanguagesoftheAmericanIndiansdistinguishbetweenwhatisclosetothespeaker,ortothepersonaddressed,orremovedfromboth,oroutofsight,orinthepast,orinthefuture.

Thisstudyoflanguage,inturn,castsanewlightupontheclaimoftheanthropologiststhatallculturearetobeviewedindependently,andwithoutideasofrankorhierarchy.

1.ThelanguageofuncivilizedgroupsascomparedtoWesternlanguagesarelimitedin（）.

2.Theauthorsaysthatprofessionallinguistsrecognizethat（）.

3.Thearticlestatesthatgrunt-and-groanformsofspeecharefound（）.

4.Accordingtotheauthor,languages,whethercivilizedornot,have（）.

5.Whichofthefollowingisimpliedbutnotarticulatedinthepassage?

问题1选项

A.soundpatterns

B.vocabularies

C.grammaticalstructures

D.bothAandB

问题2选项

A.WesternlanguagesaresuperiortoEasternlanguages

B.Alllanguagescamefromgruntsandgroans

C.Thehierarchyoflanguagesisdifficulttounderstand

D.Thereisnohierarchyoflanguages

问题3选项

A.nowheretoday

B.amongtheAustralianaborigines

C.amongEasterncultures

D.amongpeoplespeaking“backward”languages

问题4选项

A.thepotentialforexpandingvocabulary

B.theirownsoundpatterns

C.anabilitytotransferideas

D.grammaticalstructures

问题5选项

A.Thestudyoflanguageshasdiscreditedanthropologicalstudies.

B.Thestudyoflanguagehasreinforcedanthropologistsintheirviewthatthereisnohierarchyamongcultures.

C.Thestudyoflanguageisthesameasthestudyofanthropologists.

D.Thestudyoflanguagescastsanewlightupontheclaimofanthropologists.

【答案】第1题:B

第2题:D

第3题:A

第4题:A

第5题:B

【解析】1.细节事实题。根据第三段的第四句“TheyfallbehindourWesternlanguagesnotintheirsoundpatternsorgrammaticalstructures,whichusuallyfullyadequateforalllanguageneeds,butonlyintheirvocabularies,whichreflectstheobjectsandactivitiesknowntotheirspeakers.它们（不文明群体的语言）落后于我们的西方语言，通常不是在完全满足所有语言所需要的声音模式或语法结构上，而只是在反映说话者所知道的对象和活动的词汇上。”由此可知，与西方语言相比，不文明群体的语言在词汇方面受到限制，所以选项B正确。

2.细节事实题。根据原文第二段的内容“对于专业的人类学家来说，文化之间没有本质上的优越，正如对于专业的语言学家来说，语言之间也没有本质上的等级关系。”由此可知，选项D符合原文。

3.判断推理题。根据第三段一、二句的内容“人们曾经认为落后群体的语言是野蛮的、不发达的语言形式，主要由咕哝和呻吟组成。虽然语言可能是从一系列的咕哝和呻吟开始的，但对‘落后’语言的研究证实，现在的口语语言都不符合这一描述。”也就是说，咕哝和呻吟的语言形式现在已经不存在了，所以选项A正确。

4.细节事实题。第三段提及“Alllanguagesseemtopossessthemachineryforvocabularyexpansion,eitherbyputtingtogetherwordsalreadyinexistenceorbyborrowingthemfromotherlanguagesandadaptingthemtotheirownsystem.所有的语言似乎都有扩充词汇的机制，它们可以把已经存在的词汇组合在一起，也可以从其他语言中借用词汇并使其适应自己的系统。”由此可知，作者认为语言无论文明与否，都有扩大词汇量的潜力，选项A符合原文。

5.判断推理题。根据原文最后一段的内容“这种对语言的研究，反过来又为人类学家的主张提供了新的线索，即所有的文化都应该被独立地看待，没有等级或层级的观念。”选项A和选项C在文中没有信息体现；D选项是原文明确提出的观点，不符合题干的意思。B选项“对语言的研究强化了人类学家的观点，即文化之间没有等级之分”与最后一段表达的意思一致，所以正确。

5.单选题

YouandIagreetomeetatfour-thirty,Ishowupat4:33.Idon’tsayanything,becausethat’scloseenoughtosatisfyoursocialcontract.Onlyafterfiveminutesdoyouexpectmetosay,“Sorry,I’mlate.”AttenminutesIoweyouanexplanation,“Thefreewayexitwasclosed.Ihadtogofourmilesoutofmyway.”AftertwentyminutesIhavetomakeafullandseriousapology.AfterfortyminutesI’dbetternotshowupatall.

Thatsortofthing—formallyobservedandneverexplicitlystated—drivespeoplefromotherculturescrazy.Anthropologistslistthetoughestthingstocopewithinaforeignland.Secondonlytolanguageisthewaywedealwithtime.

Nowpsychologistslookatourviewoftimeanotherway.Theygointoseveralcountriesandmeasurethepaceoflife.Theymeasuretheaccuracyofbankclocksandhowfastcitydwellerswalk.Theytimetransactionsinbanksandpostoffices.Theyseehowlongpeoplelaketoanswerquestions.

Japanesekeepthefastestpace.Americansareaclosesecond.ItaliansandIndonesiansareatthebottomofthelist.Italiansgivelonganswerstoyourquestions.Indonesiansdon’tgiveafigaboutstingtheirbankclocks.AmongAmericancities,BostonandKansasCityarefastest.NewYorkisupthere,ofcourse,butwekeepafasterpacehereinHouston.California’s“laidback”reputationisdeserved.TheslowestpaceofalliskeptinLosAngeles.

Finally,welookatheartdisease.That’stricky,becauseotherfactorsareinvolved.Ourheart’sgreatestenemyistobacco.Butheartdiseasealsocorrelateswiththepacewekeep.Smokerswhodrivethemselvesarereallyaskingforit.

Nowit’s4:55.I’mstrolling,unhurriedtowardour4:30meeting.I’mthinkingsomethingaboutIsaacWatts,theEnglishpoet,wrote:

Time,whatanemptyvapouritis;

Anddayshowswifttheyare!

SwiftasanIndianarrowflies,

Orlikeashootingstar.

Thattensionsoaksthroughourviewoftime.Canweseetimeasanemptyvapor?Ordoourtechnologiesdefinetimeandbindustoin?Inatechnology-denseworld,wetoooftenlettimeturnintoanIndianarrow—oneaimedatourheart.

Sotheclockticks,andweask:Istimeanarrowwemustdodgeorvaporwecanignore?Ifwe’resmart,welivebytheclockonlywhenwehaveto.Otherwise,wesitbackandplay.Weknowhowtolettinebeonlyvapor,afterall.

1.InAmericayouhavetoapologizesincerelyifyouare________.

2.Weknowfromthepassagethat________.

3.IntheUnitedStates,thepaceoflifeisquiterelaxedin________.

4.Whichsentencecorrectlyrestates“Smokerswhodrivethemselvesarereallyrallyaskingforit”?

5.Whattheauthorwantstotellusisthat________.

问题1选项

A.5minuteslate

B.20minuteslate

C.40minuteslate

D.10minuteslate

问题2选项

A.Indonesiansdonotmeasuretheaccuracyofbankclocks

B.Japanesekeepafairlyfastpace

C.thepaceoflifeinAmericaisthefastest

D.Italianslaketheirtimeindoingthings

问题3选项

A.California

B.Houston

C.LosAngeles

D.NewYork

问题4选项

A.Smokersshouldnotdrivecarsbecausetheygetintoaccidentseasily.

B.Smokerswhohaveheartdiseaseshouldnotdrivethemselves.

C.Smokerswhoworktoohardwillsoonfindthemselvesdownwithhearttrouble.

D.Smokerswhodrivetheirowncarsarereallyaskingfortrouble.

问题5选项

A.peoplewithhearttroubleshouldnotsmoke

B.timeisdangerousinthatitislikeanarrowaimedatourhearts

C.livingbytheclockinourtechnology-denseworldcouldbefatal

D.weshouldavoidhavingeverymomentofourliferuledbytheclock

【答案】第1题:B

第2题:B

第3题:C

第4题:B

第5题:D

【解析】1.细节事实题。根据题干可定位到文章第一段AftertwentyminutesIhavetomakeafullandseriousapology.AfterfortyminutesI’dbetternotshowupatall.（在迟到20分钟后，我必须真诚道歉。在迟到40分钟后，我最好不露面。），所以B选项“迟到20分钟”正确。A选项“迟到5分钟”对应文章第一段，此处提到在迟到五分钟后，我应该说“对不起，我来迟了”，与题干不符，属于出处错位；C选项“迟到40分钟”对应第二段“迟到40分钟后，我最好不露面”，与题干意思不符，属于出处错位；D选项“迟到10分钟”对应第二段“在迟到10分钟后，我欠你一个解释”，与题干意思不符，属于出处错位。因此B选项正确。

2.推理判断题。根据题干可定位到文章第四段Japanesekeepthefastestpace.Americansareaclosesecond.ItaliansandIndonesiansareatthebottomofthelist.Italiansgivelonganswerstoyourquestions.Indonesiansdon’tgiveafigaboutsettingtheirbankclocks.（日本人回答问题的速度最快。美国人紧随其后。意大利人和印尼人排在最后。意大利人对你的问题回答很长。印尼人对设置银行时钟毫不在意。），由日本人回答问题的速度可推断出日本人的生活节奏很快，所以B选项“日本人的节奏相当快”正确。A选项“印度尼西亚人不会测量银行时钟的准确性”说法错误，此处只提到印度尼西亚人对银行设置的时钟不理会，并没有提到时钟的准确性测量，属于曲解原文；C选项“美国的生活节奏是最快的”说法错误，此处说到日本的生活节奏最快，美国第二，属于反向干扰；D选项“意大利人做事很费时”说法错误，此处只提到意大利人在银行回答问题的答案很长，并不意味着他们做所有的事情都费时，属于曲解原文。因此B选项正确。

3.推理判断题。根据题干可定位到文章第四段AmongAmericancities,BostonandKansasCityarefastest.NewYorkisupthere,ofcourse,butwekeepafasterpacehereinHouston.California’s“laid-back”reputationisdeserved.TheslowestpaceofalliskeptinLosAngeles.（在美国城市中，波士顿和堪萨斯城的生活节奏是最快的。当然，纽约在这方面一直领先，但休斯敦的节奏比纽约更快。加利福利亚“悠闲”的名声当之无愧。最慢的是洛杉矶。），由此可知洛杉矶是美国生活节奏最轻松的，所以C选项“洛杉矶”正确。A选项“加利福利亚”，虽然此处提到了加利福利亚的生活很轻松，但不是最轻松的，故不选，属于出处错位；B选项“休斯顿”，此处说到纽约的生活节奏一直很快，休斯顿比纽约更快一点，而题干中问的是生活最轻松的地方，故B选项和D选项“纽约”都不选，属于反向干扰。因此C选项正确。

4.推理判断题。根据题干可定位到文章第五段Finally,welookatheartdisease.That’stricky,becauseotherfactorsareinvolved.Ourheart’sgreatestenemyistobacco.Butheartdiseasealsocorrelateswiththepacewekeep.Smokerswhodrivethemselvesarereallyaskingforit.（最后，我们来看看心脏病。这很棘手，因为还涉及到其他因素。我们心中最大的敌人是烟草。但心脏病也与我们保持的节奏有关。自己开车的吸烟者真的是自找麻烦），由此可推断出患有心脏病的吸烟者不应该自己开车，所以B选项“患有心脏病的吸烟者不应该自己开车”正确。A选项“吸烟者不应该开车，因为他们很容易出事故”和D选项“自己开车的烟民真是自找麻烦”此处都有提到，但是吸烟者开车并不会有什么危险，除非他患有心脏病，A、D选项都没有体现这一点，属于曲解原文；C选项“努力工作的吸烟者很快就会发现自己患有心脏病”文章并没有明确提到，属于无中生有。因此B选项正确。

5.推理判断题。根据题干可定位到文章最后两段尤其最后一段的第二句Ifwe’resmart,welivebytheclockonlywhenwehaveto.（如果我们够聪明，我们只会在必要的时候按时间行事。），结合文章可知作者把时间比喻成蒸汽和指向我们心脏的利箭，但其实患心脏病也与生活节奏有关，所以可以推断作者认为生活节奏快对身体健康是不利的，我们的生活不应该完全受时间掌控，所以D选项“我们应该避免让时钟主宰我们生活的每一刻”正确。A选项“患有心脏病的人不应该吸烟”对应文章五段，文章只在该段提到了吸烟对心脏病有消极作用，但作者还提到了生活节奏太快也会导致心脏病发作，且全文都与生活节奏相关，所以A选项不足以概括作者的意图，属于以偏概全；B选项“时间是危险的，因为它就像一支指向我们心灵的箭”对应文章倒数第二段，此处提到我们的技术定义了我们对时间的看法，它可以是一把利箭，我们也可以把它当蒸汽，这都取决于人们自己的选择，属于以偏概全；C选项“在我们这个技术密集的世界里，按时钟生活可能是致命的”对应倒数第二段的最后一句，虽然该选项说法无误，但是不足以概括作者的意图，属于以偏概全。因此D选项正确。

6.单选题

Nextsemester,Susanmusttakethreecompulsorycourses.

问题1选项

A.formal

B.voluntary

C.practical

D.required

【答案】D

【解析】考查形容词辨析。compulsory“义务的；必修的；被强制的”；A选项formal“正式的；拘谨的；有条理的”；B选项voluntary“自愿的；故意的”；C选项practical“实际的；实用性的”；D选项required“必需的；必修的”。句意：下学期，苏珊必须修三门必修课。根据句中“courses课程”可知compulsory在这里的意思为“必修的”，因此D选项正确。

7.单选题

Thosegiftsofrarebooksthatweregiventousweredeeply（）.

问题1选项

A.appreciated

B.approved

C.appealed

D.applied

【答案】A

【解析】动词词义辨析。appreciate“感激”；approve“赞成，批准”；appeal“吸引”；apply“使用”。句意：对于赠送给我们这些珍贵的书籍作为礼物，我们感到深深的感激。选项A符合题意。

8.单选题

ThereisincreasingevidencethattheimpactsofmeteoriteshavehadimportanteffectsonEarth,particularlyinthefieldofbiologicalevolution.SuchimpactscontinuetoposeanaturalhazardtolifeonEarth.Twiceinthetwentiethcentury,largemeteoriteobjectsareknowntohavecollidedwithEarth.

Ifanimpactislargeenough,itcandisturbtheenvironmentoftheentireEarthandcauseanecologicalcatastrophe.Thebest-documentedsuchimpacttookplace65millionyearsagoattheendoftheCretaceousperiodofgeologicalhistory.ThisbreakinEarth’shistoryismarkedbyamassextinction,whenasmanyashalfthespeciesontheplanetbecameextinct.Whilethereareadozenormoremassextinctionsinthegeologicalrecord,theCretaceousmassextinctionhasalwaysintriguedpaleontologistsbecauseitmarkstheendoftheageofthedinosaurs.Fortensofmillionsofyears,thosegreatcreatureshadflourished.Then,suddenly,theydisappeared.

ThebodythatimpactedEarthattheendoftheCretaceousperiodwasameteoritewithamassofmorethanatrilliontonsandadiameterofatleast10kilometers.Scientistsfirstidentifiedthisimpactin1980fromtheworldwidelayerofsedimentdepositedfromthedustcloudthatenvelopedtheplanetaftertheimpact.ThissedimentlayerisenrichedintheraremetaliridiumandotherelementsthatarerelativelyabundantinameteoritebutveryrareinthecrustofEarth.Evendilutedbytheterrestrialmaterialexcavatedfromthecrater,thiscomponentofmeteoritesiseasilyidentified.By1990geologistshadlocatedtheimpactsiteitselfintheYucatregionofMexico.Thecrater,nowdeeplyburiedinsediment,wasoriginallyabout200kilometersindiameter.

Thisimpactreleasedanenormousamountofenergy,excavatingacraterabouttwiceaslargeasthelunarcraterTycho.Theexplosionliftedabout100trilliontonsofdustintotheatmosphere,ascanbedeterminedbymeasuringthethicknessofthesedimentlayerformedwhenthisdustsettledtothesurface.Suchaquantityofmaterialwouldhaveblockedthesunlightcompletelyfromreachingthesurface,plungingEarthintoaperiodofcoldanddarknessthatlastedatleastseveralmonths.TheexplosionisalsocalculatedtohaveproducedvastquantitiesofnitricacidandmeltedrockthatsprayedoutovermuchofEarth,startingwidespreadfiresthatmusthaveconsumedmostterrestrialforestsandgrassland.Presumably,thoseenvironmentaldisasterscouldhavebeenresponsibleforthemassextinction,includingthedeathofthedinosaurs.

Severalothermassextinctionsinthegeologicalrecordhavebeententativelyidentifiedwithlargeimpacts,butnoneissodramaticastheCretaceousevent.Butevenwithoutsuchspecificdocumentation,itisclearthatimpactsofthissizedooccurandthattheirresultscanbecatastrophic.Whatisacatastropheforonegroupoflivingthings,however,maycreateopportunitiesforanothergroup.Followingeachmassextinction,thereisasuddenevolutionaryburstasnewspeciesdeveloptofilltheecologicalnichesopenedbytheevent.

Impactsbymeteoritesrepresentonemechanismthatcouldcauseglobalcatastrophesandseriouslyinfluencetheevolutionoflifeallovertheplanet.Accordingtosomeestimates,themajorityofallextinctionsofspeciesmaybeduetosuchimpacts.Suchaperspectivefundamentallychangesourviewofbiologicalevolution.Thestandardcriterionforthesurvivalofaspeciesisitssuccessincompetingwithotherspeciesandadaptingtoslowlychangingenvironments.Yetanequallyimportantcriterionistheabilityofaspeciestosurviverandomglobalecologicalcatastrophesduetoimpacts.

Earthisatargetinacosmicshootinggallery,subjecttorandomviolenteventsthatwereunsuspectedafewdecadesago.In1991theUnitedStatesCongressaskedNASAtoinvestigatethehazardposedtodaybylargeimpactsonEarth.Thegroupconductingthestudyconcludedfromadetailedanalysisthatimpactsfrommeteoritescanindeedbehazardous.Althoughthereisalwayssomeriskthatalargeimpactcouldoccur,carefulstudyshowsthatthisriskisquitesmall.

62.Inparagraph2,whydoestheauthorincludetheinformationthatdinosaurshadflourishedfortensofmillionsofyearsandthensuddenlydisappeared?

63.WhichofthefollowingcanbeinferredfromthepassageaboutthelocationofthemeteoriteimpactinMexico?

64.Theword“excavating”inPara.4isclosestinmeaningto____.

65.WhichofthefollowingstatementsaboutthefactorsthatareessentialforthesurvivalofaspeciesissupportedinParagraph6?

问题1选项

A.TosupporttheclaimthatthemassextinctionattheendoftheCretaceousisthebest-documentedofthedozenorsomassextinctionsinthegeologicalrecord.

B.ToexplainwhyasmanyashalfofthespeciesonEarthatthetimearebelievedtohavebecomeextinctattheendoftheCretaceous.

C.ToexplainwhypaleontologistshavealwaysbeenintriguedbythemassextinctionattheendoftheCretaceous.

D.Toprovideevidencethatanimpactcanbelargeenoughtodisturbtheenvironmentoftheentireplanetandcauseanecologicaldisaster.

问题2选项

A.ThelocationoftheimpactsiteinMexicowaskeptsecretbygeologistsfrom1980to1990.

B.Itwasawell-knownfactthattheimpacthadoccurredintheYucatregion.

C.Geologistsknewthattherehadbeenanimpactbeforetheyknewwhereithadoccurred.

D.TheYucatregionwaschosenbygeologistsasthemostprobableimpactsitebecauseofitsclimate.

问题3选项

A.diggingout

B.extending

C.destroying

D.coveringup

问题4选项

A.Themostimportantfactorforthesurvivalofaspeciesisitsabilitytocompeteandadapttogradualchangesinitsenvironment.

B.Theabilityofaspeciestocompeteandadapttoagraduallychangingenvironmentisnottheonlyabilitythatisessentialforsurvival.

C.Sincemostextinctionsofspeciesareduetomajormeteoriteimpacts,theabilitytosurvivesuchimpactsisthemostimportantfactorforthesurvivalofaspecies.

D.Thefactorsthataremostimportantforthesurvivalofaspeciesvarysignificantlyfromonespeciestoanother.

【答案】第1题:C

第2题:B

第3题:A

第4题:B

【解析】62.【试题答案】C

【试题解析】判断推理题。题干：在第二段中，作者为什么要包括恐龙繁衍了数千万年然后突然消失的信息？定位到第二段最后一句Fortensofmillionsofyears,thosegreatcreatureshadflourished.Then,suddenly,theydisappeared.（千百万年来，这些伟大的生物繁衍生息。然后，突然，他们消失了），然后这句话的前文Whilethereareadozenormoremassextinctionsinthegeologicalrecord,theCretaceousmassextinctionhasalwaysintriguedpaleontologistsbecauseitmarkstheendoftheageofthedinosaurs.（尽管在地质记录中有十几种或更多的大规模灭绝，但白垩纪的大规模灭绝总能引起古生物学家的兴趣，因为它标志着恐龙时代的终结），因此C项“解释为什么古生物学家总是对白垩纪末的大灭绝感兴趣”符合题意。A项“为了证明白垩纪末的大灭绝是地质记录中十几次大灭绝中记录最完整的一次”，B项“解释为什么当时地球上有一半的物种在白垩纪末灭绝”，D项“提供证据，证明一次影响可能大到足以扰乱整个地球的环境，造成生态灾难”，均不符合题意。

63.【试题答案】B

【试题解析】判断推理题。从第三段倒数第二句By1990geologistshadlocatedtheimpactsiteitselfintheYucatregionofMexico（到1990年，地质学家已经将撞击地点定位在墨西哥的尤卡特地区）可知B项“众所周知，撞击发生在尤卡特地区”为正确答案。A项“1980年至1990年，地质学家对墨西哥撞击地点的位置保密”，C项“地质学家在知道撞击发生的地点之前就已经知道了”，D项“由于气候原因，地质学家选择尤卡特地区作为最可能的撞击地点”，均在文中未体现，故错误。

64.【试题答案】A

【试题解析】词义推测题。excavating“挖掘；开凿”。A项“掘出”，B项“延伸；扩展”，C项“摧毁；毁灭”，D项“掩盖”，结合句意：这次撞击释放了巨大的能量，一个约为月球Tycho陨石坑两倍大的陨石坑。因此A项符合题意。

65.【试题答案】B

【试题解析】细节事实题。根据第六段第四句Thestandardcriterionforthesurvivalofaspeciesisitssuccessincompetingwithotherspeciesandadaptingtoslowlychangingenvironments.Yetanequallyimportantcriterionistheabilityofaspeciestosurviverandomglobalecologicalcatastrophesduetoimpacts.（一个物种生存的标准是它能否成功地与其他物种竞争并适应缓慢变化的环境。然而，一个同样重要的标准是，一个物种是否有能力在随机的全球生态灾难中生存下来）可知B项“物种竞争和适应逐渐变化的环境的能力不是生存所必需的唯一能力”最贴近文意，是正确答案。A项“一个物种生存的最重要因素是它的竞争能力和适应环境逐渐变化的能力”，C项“由于大多数物种的灭绝都是由于主要的陨石撞击造成的，因此在这种撞击下生存的能力是物种生存的最重要因素”，D项“对于一个物种的生存来说，最重要的因素在不同的物种之间有很大的差异”，均未在第六段体现。

9.不定项选择题

Throughoutextensiveareasofthetropicsthetallandstatelyprimevalforesthasgivenwaytoerodedland,scrubandthejumbleofsecondarygrowth.JustasthevirginforestsofEuropeandNorthAmericawerelaidlowbyman’simprovidence,sothoseofthetropicsarenowvanishing—onlytheirdestructionmaybeencompassedindecadesinsteadofcenturies.Afewauthoritiesholdthat,exceptforgovernmentreserves,theearth’sgreatrainforestsmayvanishwithinageneration.Theeconomiclosswillbeincalculable,fortheprimaryrainforestsarerichsourcesoftimber(mahogany,teak)andsuchby-productsasresins,gums,cellulose,camphorandra