unit 3 science versus nature 教学设计 7

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1、Unit3ScienceversusNature教学案7课题Unit3Scienceversusnature课时主备人授课时间教学目标Enablethestudentstolearndifferentopinionsoncloning.Helpthestudentstolearnhowtounderstandscientifictermsandanalyzethepassageaccordingtothereadingstrategy.重难点Howtounderstandthewriter’spointofview.Howtounderstandthescientificterms.教学具At

2、aperecorder，aprojectorandacomputer.预习要求workbook教师活动内容、方式学生活动内容、方式旁注StepIRevisionCheckthehomework:AsksomestudentstosharetheirinformationaboutcloningfoundontheInternet.StepIILead-inT:Good.Ithinkyoureallydidalotofworkafterclass.Thankyouverymuch.TodayIwouldliketointroduceafamousguytoyoufirst.Lookatthesc

3、reenplease.ShowapictureofFrankensteinmonsteronthescreen.StepIIIPre-readingInthisprocedure，studentswilldofastreadingandanswerthequestionsinactivityA.After2minutes，askstudentstoreporttheiranswers.Suggestedanswer:1.Thearticlegivesboththeanti-andpro-cloningpointofview.2.ItsnamewasDolly.3.Obviouslysheisa

4、nti-cloning.StepIVSkimmingInthisprocedure，encouragethestudentstodeveloptheirpredictiveskillbyreadingthebeginningandtheendingtoguessasmuchastheycanaboutthepassageandunderstandthemeaningofthetextasawhole.StepVScanningWhilescanning，theteachershouldplaythetapeforthestudents.Thestudentschecktheirpredicti

5、onsandbuildanoutlineofthetextintheirminds.After3minutes，checktheanswers.Askseveralstudentstotellthemainideaofeachparagraph.Thenshowthefollowing.ParagraphMainideaPara1AnannouncementabouthumanembryocloningwhichhascausedmuchdebatePara2ExplaincloningasawonderfulscientificbreakthroughandgivetheexampleofD

6、ollyPara3Dolly’screator’sopinionabouthumancloningPara4Asaleswomansupportscloningverymuchforherpersonalpurpose.Para5Somescientistsarepushingaheadwiththeresearchtoclonehuman.Para6TheachievementsofChinaoncloning.3minuteslater，checktheanswer.T:NowlookatactivityC2，findthereasonswhypeoplearepro-oranti-clo

7、ninginthearticleandletters.Suggestedanswers:Pro-cloningAnti-cloning1.Producevaluabletissuesandorgansthatcouldbeusedtosavehumanlives.1.Mayproduceareal-lifeFrankenstein’smonster.2.Createnewtissuesandorg