2017年6月大学英语四级阅读练习及答案(十三)思维导图

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2017年6月大学英语四级阅读练习及答案(十三)思维导图

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　　Japan is getting tough about recycling—and not in the paper and plastic kind of way. Recently, the country requires that all electronic goods—TVs, VCRs, stereos, and more—be re

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Japanisgettingtoughaboutrecycling—andnotinthepaperandplastickindofway.Recently,thecountryrequiresthatallelectronicgoods—TVs,VCRs,stereos,andmore—berecycled.Butrecyclingwillnotbelefttoconsumers,instead,thedeviceswillbesenttotheoriginalmanufacturerforproperdisposal.

Thenewlawposesafewchallengestomanufacturerswhoarenowrushingtosetupcollectionnetworksandperfectingtechniquestodisassembleandrecycleolderproducts.Withaneyetowardthefuture,theyarealsointegratingeasilyrecycledmaterialsintonewproducts.Plastics,amajorcomponentofmostelectronicproducts,poseaparticularobstaclebecausetheirqualitybecomesworseandworsewithage,losingstrengthandflexibilityevenifreprocessed.NECCorp.overcomesthisproblembycreatingaplasticssandwich,inwhichthefillingis100percentrecycledplasticandtheouterlayersamixtureof14percentrecycledmaterial.TheresultingplastichassufficientstrengthandtoughnessforuseasacasefordesktopPCs.Thecompany,incooperationwithplasticmakerSumitomoDow,hasalsodevelopedanewplastic,whichengineersclaimretainsitsmechanicalpropertiesthroughrepeatedrecycling.NECusestheplastic,whichisalsoflame-retardant(阻燃的)inbatterycasesfornotebookPCs.

Meanwhile,MatsushitaElectric,makerofthePanasonicbrand,isavoidingplasticinfavorofmagnesium(镁).Magnesium,saysthecompany,isidealforrecyclingbecauseitretainsitsoriginalstrengththroughrepeatedreprocessing.Matsushitahasdevelopedmoldingtechniquestoformmagnesiumintothecasefora21-inchTV.Unfortunately,themagnesiumcaseandenergy-savingfeaturesmaketheTVabouttwiceasexpensiveasanordinarymodel.Thecompanyhopes,however,thatincreaseduseofmagnesiumwilleventuallybringpricesdown.

练习题：

Choosecorrectanswerstothequestion:

1.AccordingtothepresentregulationsofJapan,therecyclingofpaperandplasticwillbetheresponsibilityof______.

A..thegovernment

B.themanufacturers

C.theconsumers

D.thesellers

2.WhichofthefollowingisNOTthecharacterofplastics?

A.Mostelectronicproductscontainplastics.

B.Itretainsitsoriginalstrengththroughreprocessing.

C.Recycledplasticscanbeintegratedintonewproducts.

D.Plasticswillloseflexibilityafteracertainperiodoftime.

3.Accordingtothepassage,theterm“plasticsandwich”refersto_____.

A.akindofsandwich-shapedtoymadeofplastics

B.akindofplasticswithdifferentintegrationineachlayer

C.akindofplasticswithmaximumstrengthandflexibility

D.akindofplasticsmadeof100%recycledmaterials

4.Inthepassage,itisimpliedbutNOTstatedthat_____.

A.disposingtheplasticsisoneofNECCorp’sbusinesses

B.magnesiumisanidealmaterialforthecaseofTV

C.21-inchTVwithmagnesiumcaseisn’tverypopularsofar

D.magnesiummustbebetterthantheplastics

5.Theauthorwritesthispassageinorderto_____.

A.inform

B.instruct

C.predict

D.persuade

1.[C]推理判断题。文章首段提到了电子产品的回收利用与纸张和塑料不同;本段最后一句中的but表明了以上不同点在于电子产品的回收不依靠消费者，而依靠生产者。结合以上两点，可以推断纸张和塑料的回收利用主要靠消费者，因此选项C为正确答案。

2.[B]事实细节題。本题考査列举处。第2段第3句列举了塑料的特性，对照选项和该句，就能发现文中明确提到选项A、C、D,而选项B显然与原文意思相反。

3.[B]事实细节题。本题考査复合句的理解。第2段第4句是一个非限制性定语从句，是plasticssandwich的定义，选项B是对该定语从句所述亊实的总结，因此选项B正确。选項A在文中没有提及;选项C中的maximum是对原文sufficient的曲解;选项D中的100%这一数据不准确，文中只提到plasticssandwich里层是100%的再生塑料。

4.[C]推理判断题。本题考査转折处。最后一段倒数第2句中的Unfortunately一词指出了用镁作机壳的电视机很贵，从而暗示它们并不受消费者欢迎，所以选项C正确。选项A属原文明确表达的意思。本段第2句只指出镁是一种理想的再生材料(idealforrecycling),因此选项B不对;全文并未比较塑料和镁哪个更好，因此选项D不对。

5.[A]主旨大意题。文中作者只是客观地描述亊实，吿知读者日本的电子产品再循环使用的一些新变化和新技术，抓住这个主旨就能选出正确答案A。作者并未发表任何个人观点，也未做出任何指示或預测。

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