unit2单元检测2017-2018学年高二英语人教选修8（新做）

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1、Unit2Cloning单元检测I・阅读理解阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。AAfteracouplehashadtheirfirstchild,totheirdisappointmenttheybecomeinfertile（不生育白勺）andcannothavemorechildren・Manycoupleshavedifficultieshavingchildren,andsometimesitisimpossibleforcouplestohavechildrenbecausetheyareinfertile.Fortunat

2、ely,cloningwouldallowthesecouplestohavechildren.Thisisonereasonwhyitisdifficulttodecidewhethercloningisethical（伦理白勺）ornot.Thefollowingaresomeofthereasonswhycloningshouldbeallowed・Asjustdiscussed,cloningcanbeusedtohelpbenefitthosewhocannothavechildrenthroughthenormal,naturalway.Itisthedesi

3、reofmostcouplestohavechildrenandwhenitisimpossibletobearchildrenoftheirown,somearewillingtodoanythingtohaveachild・Cloningwillallowthemtohaveachildormanychildrenthathavethegenetic（基因的）patternoftheparents.Throughcloning,researchcanprogress・Wecanlearnenoughtoproducehumanorganswithouthavingto

4、producehumanbeings.Wemaydeveloptechnologytoalloweasiergenetictestingandfixingproblemssuchasspinalcordinjuries,cancer,andmanymore.CloningorgansfororganIransplanls（移植）isoneofthemajorpracticalreasonsthatcloningshouldbeallowed・Thereisalwaysahighdemandfororgans・Someargueforthecloningofhumansto

5、createextrabodyparts.Otherstalkofjustwantingtocloneanorgantoreplaceafaultyorgan.Rejuvenation（返老还童）isalsoakeyargumentforadvocatesofcloning・Humancloningmayonedaycureheartattacks.Somescientistsbelievethatbyinjectingclonedhealthyheartcellsintodamagedhearttissuewillleadtohealingoftheheart.1.Th

6、etopicofthetextisintroducedby・A.givinganexampleB・makecomparisonsC.settingdowngeneralrulesD.presentingresearchfinding1.Thethirdparagraphiswrittentotellus.A.cloningcanbenefitresearchB.scientificresearchisprogressingC・humanorganareingreatdemandD.cloningmakesgenetictestingeasier2.Whichofthefo

7、llowingbestshowsthestructureofthetest?ABCDBPersuasionistoconvincesomeonetoagreewithyou,justlikeartwhichalsocallsforspecialtechniquestoaccomplish・AccordingtotheancientGreeks,therearethreebasictoolsofpersuasion:ethos,pathosandlogos・Ethosisaspeaker^wayofconvincingtheau