2019-2020年高中英语 Unit2 Cloning 第4课时导学案 新人教版选修8

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1、2019-2020年高中英语Unit2Cloning第4课时导学案新人教版选修8Teachingaim:掌握科普文章的阅读方法Teachingkeypointsanddifficulty动名词的复合结构学习过程：Step1:Choosethebestanswerafterreading.1.ThefilmJurassicParkispopularbecause_____.A.peopleareinterestedinthesubjectofcloningB.alltheactorsaredinosaursC.itwasdirectedbyascientist

2、whoclonesdinosaursD.itprovesveryinteresting2.Thewriterofthetext_____A.isexcitedbythepossibilityofcloningfierceandextinctanimalsB.believesthatextinctanimalscanbebroughtbacktolifebycloningC.thinksitimpossibleorunsuitabletocloneextinctanimalslikedinosaursD.dreamsofdinosaursreturningto

3、theearth3.Wecaninferfromthetextthat____A.scientistsareexperimentingtoclonedinosaursB.dinosaurswillneverreturntotheearthC.clonedanimalswillonlyliveinthezooD.theDNAofdinosaurscanonlysurvive10000yearStep2:Readthetext,thentellthefollowingsentencesaretrueorfalse.1.Scientistsarestillexpe

4、rimentingwithcloningmammalsbecausetheythinkitcanmakemoney.2.Theanimalsthathavedisappearedfromtheearth,likedinosaurs,canbebroughtbacktolifethroughcloning.3.Ifwecancloneanyextinctanimals,weshouldletthemliveinazoo.Step3:Givesomereasonswhyitiseitherimpossibleorunsuitabletocloneextincta

5、nimalsReason1:Reason2:Reason3:Step4:DiversityinagroupofclonedanimalsAdvantageofdiversityDisadvantageofdiversityStep5:knowleagepoints1.strike1)撞；碰；撞击；碰撞Shefell,strikingherheadagainstthesideoftheboat.她摔倒时头撞在船舷上。2)打；击Onemanwasstruckontheheadwithastick.一名男子头部遭到棍击。3)击打，踢(球等)Hestrucktheb

6、allintothebackofthenet.他射出的球直入网底。4)(想法，念头)突然想到；一下子想起；猛地意识到Anideasuddenlystruckme.我心中忽然产生了一个念头。Itsuddenlystruckmethatweoughttomakeanewplan.5.bestruckby/on/withsb/sth被某人(或某物)打动；迷恋某人(或某物)Iwasstruckbyherbeauty.她的美貌给我留下了深刻的印象。6)(疾病，灾难)侵袭；爆发Theareawasstruck/hitbyanoutbreakofcholera.那一地区爆

7、发了霍乱。7)(钟)敲，鸣，报时Theclockstrucknine.钟敲了九下。8)罢工Theworkerswerestrikingbecausetheywantedmoremoney.工人们在罢工，因为他们要求增加工资。9)擦，划(火柴)；击出火星Thematchesweredampandhecouldn'tmakethemstrike.火柴受潮了，他划不着。10)onstrike在罢工Mostoftheemployeeswereonstrike.许多雇员在罢工。11)strike...intoone'sheart使……刻骨铭心Theghoststory

8、struckfearintotheheartsoft