高中英语 u2 using language学案新人教版选修8

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1、Unit2CloningPeriod4UsinglanguageTeachingAims:1.掌握以下单词和短语的拼写和用法：strike...intoone'sheart、fromtimetotime、bringbacktolife、invain、resist、merely、initial2.通过运用略读和扫读两种阅读方法完成阅读任务；3.通过本节课的学习，增进学生对克隆技术的了解，培养学生对科学的兴趣。Step1LeadinginLookatthefollowingpicturesandthinkwhichfilmtheyarefrom.Doyo

2、ulikedinosaurs?Canyouseetheminourreallife?Why?Step2ReadingTask1Skimming(matchthemainideawitheachparagraph)Part1A.ReasonsfornotcloningPart2B.PossibilityofcloningPart3C.HistoryofcloningPart4D.Conclusion(结论)Task2ScanningDivisionDetailedfactsPart1♥Theidea______amixtureoffearandexci

3、tementintopeople’shearts♥Scientistsarestill_________________cloningmammalsPart2♥Inthe_____researchusingtheembryosofmice♥In1996firstcloneofa________:Dollythesheep♥In2000cow_____________abisonPart3♥___________________peoplesuggestthatextinctanimalscanbe____________________through

4、cloning,butit’simpossibleorunsuitable(不合适的).Therearemanyreasons:♥The______requirement(要求)isthatyouneedperfectDNA.♥Alleffortsofcloningananimalwillbe________ifthereisnotenoughdiversity(多样性)inthegrouptoovercome(战胜，克服)illnesses.♥Itwouldbeunfairtocloneanyextinctanimalsiftheyweretoli

5、veinazoo.Part4♥Sothechanceofdinosaurseverreturningtotheearthis________adream.Task3Choosethebestanswer：1.ThefilmJurassicParkispopularbecause_______.[Part1]A.peopleareinterestedinthesubjectofcloningextinctanimalsB.alltheactorsaredinosaursC.itwasdirectedbyascientistwhoclonesdinosa

6、ursD.itprovesveryinteresting2.Whichofthefollowingistrue?[Part2]A.Micewereclonedin1981.B.Dollythesheepwasthefirstclonedanimal.C.Thenameoftheclonedcowis“Bison”.D.Chinawassuccessfulincloningmammals.3.Thewriterofthetext_____.[Part3]A.isexcitedbythepossibilityofcloningfierce(凶猛的)and

7、extinctanimalsB.believesthatextinctanimalscanbebroughtbacktolifebycloningC.thinksiteitherimpossibleorunsuitabletocloneextinctanimalsD.dreamsofdinosaursreturningtotheearth4.Wecaninfer(推断)fromthetextthat___.[Part4]A.scientistsareexperimentingtoclonedinosaursB.dinosaurswillneverre

8、turntotheearthC.clonedanimalswillonlyliveinthezooD.the