2019-2020年高中英语 Unit2 Cloning reading2理解学案 新人教版选修8

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1、2019-2020年高中英语Unit2Cloningreading2理解学案新人教版选修8【学习目标】分析文脉，理解课文，使用适当的阅读方法与技能，把握课文内容并获取信息，处理信息。【学习重点，难点】提高阅读文章的技巧和如何从文章中获取有效的信息的能力。【课型】新授课【回顾预习】熟读第二部分单词，浏览课文，了解大意。【新知识学习】Task1.ClassReport.Task2.Self-learning（自主学习）Skimming:1.Whydon’ttheauthorbelievethedino

2、saurscanbecloned?_________________________________________________________2.Whyshouldn’tyoucloneanextinctanimalifthereisn’tenoughdiversityinthegroup?__________________________________________________________3.Howmanyyearsagodiddinosaursdisappeared?___

3、______________________________________Scanning:Arrangeaccordingtotime________________________1.researchusingtheembryosofmice2.firstexperimentalclonesofcows3.firstexperimentalclonesofmice4.workontheembryosofsheepandmice5.China’sfirstclonedtwincalves6.c

4、loningoffrogs7.firstcloneofamammal8.cowgavebirthtoabisonDetailedReading__________foritsimpossibilityPerfectDNAisneeded.Thereisnotenough________inthegroup.A(n)______________wouldbeneededfortheclonedextinctanimals._________________Thechanceofdinosaursre

5、turningtotheearthis_____________学习指导明确学习目标！提取有效信息！答案力求简洁注意句子理解Findoutthefollowingphrases1.使---刻骨铭心_______________2.生，生产_____________3.不时的____________4.使复生，使复活___________5.白费力气，徒劳___________6.战胜疾病__________________7.意味着做某事______________8.把---传递给某人_____

6、__________9.死于---______________10.过自然的生活_______________11.以---为基础____________12.回到地球的机会________________Step3.Discussionandpresentation小组讨论自主学习中的问题，并进行展示和点评,点评过程中要注意补充和质疑。【当堂达标】Choosesynonyms1.---，proveshowtheideastruckamixtureoffearandexcitementintope

7、ople’shearts.A.haveonthebrainB.confusedC.drovedpeoplecrazyD.scared2.Fromtimetotimepeoplesuggestthatextinctanimals---A.TherewasatimewhenB.OccasionallyC.AllthetimeD.Eachtime3.Peoplesuggestthatextinctanimalslikedinosaurs,canpossiblybebroughtbacktolife.A.

8、keptupB.resistC.liveonD.relived4.TheinitialrequirementisthatyouneedperfectDNA.A.mostthankfulB.mostpressingC.mostdifficultD.mostneeded5.Alleffortsofcloningananimalwillbeinvainifthereisnotenoughdiversity---A.gotowasteB.uselessC.helplessD.meaning