m8unit2using language

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1、人教新课标版选修八Unit2CloningUsingLanguageThereturnofDinosaurs?霸王龙tyrannosaurus剑龙stegosaurs雷龙brontosaurus翼龙pterodactylLookatthefollowingpicturesandthinkwhichfilmtheyarefrom.HaveyoueverseenthefilmJurassicPark?Whydopeoplelikethisfilm?Whatanimalsdoyouseeinthefilm?Aretheyreal?Arrangeaccor

2、dingtotime.5.researchusingtheembryosofmice4.firstexperimentalclonesofcows8.firstexperimentalclonesofmice7.workontheembryosofsheepandmice2.China’sfirstclonedtwincalves3.cloingoffrogs6.firstcloneofamammal1.cowgavebirthtoabison35784612SkimmingScientistsarestillexperimentingwithcl

3、oningmammalsbecausetheythinkitcanmakemoney.Theanimalsthathavedisappearedfromtheearth,likedinosaurs,canbebroughtbacktolifethroughcloning.Ifwecancloneanyextinctanimals,weshouldletthemliveinazoo.FFFTrueorFalse1.Thewriterofthetext_____.A.isexcitedbythepossibilityofcloningfiercean

4、dextinctanimalsB.believesthatextinctanimalscanbebroughtbacktolifebycloningC.thinksitimpossibleorunsuitabletocloneextinctanimalslikedinosaursD.dreamsofdinosaursreturningtotheearthChoosethebestanswer.C2.ThefilmJurassicParkispopularbecause_______.A.peopleareinterestedinthesub

5、jectofcloningB.alltheactorsaredinosaursC.itwasdirectedbyascientistwhoclonesdinosaursD.itprovesveryinterestingA3.Whichofthefollowingistrue?A.Micewereclonedin1981.B.Dollythesheepwasthefirstclonedanimal.C.Thenameoftheclonedcowis“Bison”.D.Chinawassuccessfulincloningmammals.D

6、4.ThereasonswhyagroupofclonedanimalsalldieofthesameillnessdoNOTinclude____.A.theyhavethesamearrangementofgenesB.thereisn’tenoughdiversityinthegroupforittoovercomeillnessesC.theillnessisanewoneD.theirarrangementofgenescannotresistthatnewdiseaseC5.Wecaninferfromthetextthat___

7、_.A.scientistsareexperimentingtoclonedinosaursB.dinosaurswillneverreturntotheearthC.clonedanimalswillonlyliveinthezooD.theDNAofdinosaurscanonlysurvive10000yearsBReadthetextandanswerthequestions.Whyshould’tyoucloneanextinctanimalunlessthereisenoughdiversityinthegroup?Therewil

8、lnotbeenoughgeneticvariationinthegrouptobeabletoresistnewilln