选修八Unit2Cloning教学设计

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1、Unit2.CloningReading教学设计-雷翊Teachingcontents,DoingreadingcomprehensionaboutthetextTeachingaims,Knowledgeaims，Helpthestudentsunderstandthetextverywell.Abilityaims，Improvethestudents’readingability.Emotionalaims，1.stimulatestudents’interestincloning.2.Developstudents’spirit

2、ofcooperationandteamworkTeachingimportantpoints,howtodescribecloning.Teachingdifficultpoints,Help the students analyze the writing techniques of the article.Teachingmethods,1.task-basedteachingandlearning2.debate methodTeachingproceduresandways,Step1:WarmingupShow some p

3、ictures of A strawberry  plant 、Twins、cloningcattles、Identical dogson the screen. Get students to look at the pictures and discuss:Whichisnaturalclone?Whichisman-madeclone?andthenexplainhowtheydiffer.(设计说明：克隆技术是一门前沿科技，学生对此兴趣浓厚，利用幻灯片展示当今克隆技术产生出来的动植物照片，学生的兴趣被瞬间激发，这就为进一步的学习

4、做好了铺垫。）Step2:Lead-inHowwasDollythesheepcloned?Whatwasitsfate?Step3.Fastreading1.Whatisthemainideaofthetext?Thetextismainlyaboutthe_________ofanimalcloningandthelifeofDollythesheep,aswellasthereasonswhycloningisstill___________.2.Givetherightorderofthemainideaofeachparagr

5、aph.___.Cloninghastwomajoruses.4___.Whatiscloning?.___.TheeffectofDollythesheep.___.Itisforbiddentoclonehumanbeings.___.TheproblemsofDolly.（设计说明：通过快读课文，让学生试着找出每段的主旨句，这样学生能更好地理解每段大意以及整个课文的大意，下一步各个阅读练习就容易多了。）Step4.CarefulreadingⅠ.Trueorfalse1.Electricityisneededintheproced

6、ure.2.SheepBprovidesasomaticcellfortheclone.3.ThelambistheexactcopyofsheepA.4.Cloningmeansmakingacopyofananimal.5.Cloninganimalsisascomplicatedascloningplants.6.Dollythesheepwasthefirstsuccessfulcloneofamammal.ⅡChoosethebestanswers.1.ThecloningofDollythesheepsucceededbec

7、ause____.A.it’seasiertocloneasheepthanotheranimalsB.thescientistsweredeterminedandworkedhardwithpatienceC.thescientistswererewardedandgotlotsofmoneyD.manyotherattemptstoclonemammalsfailed.2.ThelambisthecloneofthecellfromsheepBbecause_____.A.itprovidestheeggcellB.itgivesb

8、irthtothelambC.itprovidesthenucleusD.itisafemalesheep3.Inthesecondparagraph,theword“straightforward”mea