天津高考英语二轮增分策略专题三阅读理解第二节分类突破六推理判断_写作意图题优选习题.doc

《天津高考英语二轮增分策略专题三阅读理解第二节分类突破六推理判断_写作意图题优选习题.doc》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、六、推理判断——写作意图题(2018·北京，C)Plastic-EatingWormsHumansproducemorethan300milliontonsofplasticeveryyear.Almosthalfofthatwindsupinlandfills(垃圾填埋场)，andupto12milliontonspollutetheoceans.Sofarthereisnoeffectivewaytogetridofit，butanewstudysuggestsananswermaylieinthestomachsofsomehungryworms.Re

2、searchersinSpainandEnglandrecentlyfoundthatthewormsofthegreaterwaxmothcanbreakdownpolyethylene，whichaccountsfor40%ofplastics.Theteamleft100waxwormsonacommercialpolyethyleneshoppingbagfor12hours，andthewormsconsumedandbrokedownabout92milligrams，oralmost3%ofit.Toconfirmthattheworms’ch

3、ewingalonewasnotresponsibleforthepolyethylenebreakdown，theresearchersmadesomewormsintopaste(糊状物)andappliedittoplasticfilms.14hourslaterthefilmshadlost13%oftheirmass—apparentlybrokendownbyenzymes(酶)16fromtheworms’stomachs.TheirfindingswerepublishedinCurrentBiologyin2017.FedericaBert

4、occhini，co-authorofthestudy，saystheworms’abilitytobreakdowntheireverydayfood—beeswax—alsoallowsthemtobreakdownplastic.“Waxisacomplexmixture，butthebasicbondinpolyethylene，thecarbon-carbonbond，isthereaswell，”sheexplains.“Thewaxwormevolvedamethodorsystemtobreakthisbond.”JenniferDeBruy

5、n，amicrobiologistattheUniversityofTennessee，whowasnotinvolvedinthestudy，saysitisnotsurprisingthatsuchwormscanbreakdownpolyethylene.Butcomparedwithpreviousstudies，shefindsthespeedofbreakingdowninthisoneexciting.Thenextstep，DeBruynsays，willbetoidentifythecauseofthebreakdown.Isitanenz

6、ymeproducedbythewormitselforbyitsgutmicrobes(肠道微生物)?Bertocchiniagreesandhopesherteam’sfindingsmightonedayhelpemploytheenzymetobreakdownplasticsinlandfills.Butsheexpectsusingthechemicalinsomekindofindustrialprocess—notsimply“millionsofwormsthrownontopoftheplastic.”语篇解读　本文是一篇说明文。作者介绍

7、了一项科学发现：一种吃塑料的虫子——大蜡螟，它胃中的酶能够降解塑料，从而为人们解决塑料污染问题提供新的途径。43.Whatcanwelearnaboutthewormsinthestudy?A.Theytakeplasticsastheireverydayfood.B.Theyarenewlyevolvedcreatures.C.Theycanconsumeplastics.D.Theywindupinlandfills.答案　C解析　推理判断题。根据第二段第一句“...foundthatthewormsofthegreaterwaxmothcanbreak

8、downpolyethylene...”和第二句中的