北师大版高中英语选修八Unit 22《Environmental Protection》word单元测试 .doc

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1、Unit22　EnvironmentalProtection第一部分　语言知识及运用(共两节，满分45分)第一节　完形填空(共15小题；每小题2分，满分30分)阅读下面短文，掌握其大意，然后从1～15各题所给的A、B、C、D四个选项中，选出最佳选项。Beforediscussingthistopic，thereplacementofdeadpeoplethroughcloning，abigmisunderstandinghastobepointedout.Cloningcanonlyproduce__1__identicalhumansbutitcan

2、't__2__thatthepersonalbeliefsorgoalswillbesimilartothe__3__，too.Thismeansforexamplethatevenifsomebodywouldhaveababywhoseembryo(胚胎)wasenhancedwith__4__formusicaltalentitisn'tguaranteedthatthisbabywillsomedaybecomeafamous__5__.Thechildmayhavemusicaltalentbutwhathemakesoutofthese__

3、6__，whetherheusesthemornot，isupto__7__.Ifitisnotinterestedintakingpianolessons，forexample，thetalentwillstay__8__.Theproblemisthesamewhensomebodywouldtrytoreplacealovedone.__9__expectationsonhowthecharacterwillbemightleadtofrustration.Ofcoursetheoutwardappearanceoftheclonewillbee

4、xactlythesamebutthepersonalitywillbe__10__differentandthat'sthecriticalpointhere.Theclonecanneverreallybea__11__foranotherperson.Alsowehavetoaskusifitisjustifiablefromtheethicalside.Cloningpeopleto__12__othersissomewhatsimilartohaveanotherbabyjusttocreateaperfectdonorforthealrea

5、dyexistingsiblingthatis__13__.Howwouldyou__14__ifyourparentssomedaytellyouthatyouwereonlybornforyourbrotherorsisterandthatyouwouldn'tbeherenowifyour__15__wouldn'thaveneededyourhelporwouldn'thavedied?【解题导语】本文主要阐述人们对于克隆人的误解，以及道德思考。1．A.theoreticallyB．geneticallyC．practicallyD．simil

6、arly解析　“基因上”，根据常识，克隆是无细胞繁殖，克隆产物跟克隆母体的基因是完全一样的。答案　B2．A.ensureB．enableC．promiseD．admit解析　“确保，保证”，虽然可以克隆出基因相同的人，但却不能保证克隆人的信仰也会跟母体原型类似。答案　A3．A.patternB．exampleC．modelD．copy解析　“model”原型。“pattern”模板、模型；“example”例子；“copy”拷贝，复制。答案　C4．A.genesB．elementsC．possibilitiesD．cells解析　根据上文可知此处应为基

7、因(genes)。答案　A5．A.teacherB．footballerC．dentistD．pianist解析　从上文中的musicaltalent可知有可能成为pianist。答案　D6．A.embryoesB．expectationsC．talentsD．skills解析　“Thechildmayhavemusicaltalent”，但他如何利用这些talents。答案　C7．A.thegenesB．thechildC．theparentsD．thescientists解析　取决于孩子自己，由后文的it也可得知指孩子。答案　B8．A.unknow

8、nB．undiscoveredC．unacceptableD．unpopular解析　unkn