2017年6月大学英语四级阅读练习及答案(四)思维导图

落魄潦倒

2023-03-16

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　　Where do pesticides fit into the picture of environmental disease? We have seen that they now pollute soil,water and food, that they have the power to make our streams fishless an

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思维导图大纲

练习题：

Choosecorrectanswerstothequestion:

1.Whichofthefollowingisclosestinmeaningtothesentence"Man…ispartofnature"(Para.1,Lines3-4)?

A.Manappearsindifferenttowhathappensinnature.

B.Manactsasifhedoesnotbelongtonature.

C.Mancanavoidtheeffectsofenvironmentalpollution.

D.Mancanescapehisresponsibilitiesforenvironmentaleffectsofpesticides?

2.Whatistheauthor"sattitudetowardtheenvironmentaleffectsofpesticides?

A.Pessimistic

B.Indifferent

C.Defensive

D.Concerned

3.Intheauthor"sview,thesuddendeathcausedbyexposuretolargeamountsofpesticides_____.

A.isnottheworstofthenegativeconsequencesresultingfromtheuseofpesticides

B.nowoccursmostfrequentlyamongallaccidentaldeaths

C.hassharplyincreasedsoastobecomethecenterofpublicattention

D.isunavoidablebecausepeoplecan"tdowithoutpesticidesinfarming

4.Peopletendtoignorethedelayedeffectsofexposuretochemicalbecause_____.

A.limitedexposuretothemdoeslittleharmtopeople"shealth

B.thepresentismoreimportantforthemthanthefuture

C.thedangerdoesnotbecomeapparentimmediately

D.humansarecapableofwithstandingsmallamountsofpoisoning

5.ItcanbeconcludedfromDr.Dubosremarksthat_____.

A.peoplefindinvisiblediseasesdifficulttodealwith

B.attacksbyhiddenenemiestendtobefatal

C.diseaseswithobvioussignsareeasytocure

D.peopletendtooverlookhiddendangerscausedbypesticides

1.[B]题干的句子是文章第1段第3句，这是一个带有插入语的简单句，contrary在此表示跟partofnature相反，因此答案为B。

2.[D]第2段最后一句提到，我们必须更加关注吸收少量杀虫剂的潜在后果，它们正在不知不觉地污染我们的世界。因此，作者对杀虫剂对环境的影响关注且担忧,D符合题意。

3.[A]第2段第2句提到，杀虫剂使人突然发病或者死亡是很令人难过的亊，对于人口整体来说，人类对杀虫剂长期累计的潜在后果的认识不足，才是最严重的问题，故选A。

4.[C]根据第3段倒数第2句说的“对未来的灾难无动于衷是人的本性”以及最后一句说的"大多数人只对有明显迹象的疾病予以关注”可知C正是人们忽视化学药物的潜在危害的原因，故选C。

5.[D]Dubos博士话中“最可怕的敌人”指的是“杀虫剂引起的潜在危险”，博士话中的slowlyapproachthemunnoticed直接表明D正确。

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