高中英语人教版Unit2Cloning 教学设计高中英语-unit2cloning

教学设计课题：Book8Unit2CloningTeachingaims:1.Tohelpthestudentstohaveagoodunderstandingofthereadingpassage;2.Tohelpthestudentsknowtheadvantagesanddisadvantagesofcloning;3.Tohelpthestudentstobeabletodiscusssomeoftheissuesassociatedwithcloning.Teachingimportant&difficultpoints：Understandandgrasptheadvantages,disadvantagesandthefutureofcloning.Teachingmethods:Autonomouslearning,Cooperativelearning(pairwork,groupwork)Teachingaid:Acomputer,multimediaTeachingprocedure：Step1.PresentationStep2.Fast-reading1.Scanthefollowingpassageandmatchtheparagraphwiththecorrectsentence.Para1A.TheproblemsofDollyPara2B.ThetwomajorusesandproceduresofcloningPara3C.TheimpactofcloningDollyPara4D.ThedefinitionofcloningPara5E.People’sreactiontocloning2.Themainideaofthetextis______.A.Animalcloningisveryvaluableandcanbenefittheworld.B.Animalcloningcouldbemisusedbybadpeoplesoitmustbeforbidden.C.AnimalcloningiswelldevelopedbecauseDollythesheepwasborn.D.Animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture.Step3.Careful-readingTask1.(Readpara1-2):Answerthefollowingquestions.1.Whatiscloning?2.Whatarethetwomajorusesofcloning?3.Whyisiteasiertomakecommercialplantclonesthananimalclones?Task2:（Readpara3-5):Choosethebestanswer.1.Itcanbeinferredfromthepassagethataclonedanimal_____.A.usuallylivesaslongastheoriginaloneB.usuallyliveslongerthantheoriginaloneC.usuallylivesshorterthantheoriginaloneD.isusuallyashealthyastheoriginalone2.Whichofthefollowingisnotanadvantageofcloning?A.Cloningcanbeusedformedicalpurposes.B.Largequantitiesoffoodcanbeproducedbycloning.C.Cloningcanhelpkeepanimalsfrombecomingextinct.D.Famouspersonswhohavepassedawaycanbecloned.3.What’sthewriter’sattitudetowardscloning?A.SupportiveB.NeutralC.NegativeD.SubjectiveStep4.Detailed-readingTask1.★Groupwork1:DiscussingroupsandthenshowustheprocedureofthecloningofDollythesheep.TheprocedureofcloningDollythesheep:First,femalesheepAprovides_________,whosenucleusisremoved.FemalesheepBprovidesa_______cell,whosenucleuscontainsallthegenesneededtoproduceanewsheep.ThenthenucleusfromsheepBandtheeggcellfromsheepAarejoinedusing____________.Thecelldividesandgrowsintoan_______,whichisputintofemalesheepC.Soshebecomesthecarrieroftheclone.Finally,anewlamb,whichisthecloneofsheepBisproduced.Task2.Fillinthechartusingtheinformationfromthereadingpassage.ProblemsordangersofcloningAdvantagesofcloning

1.Animalclonesmaydevelopthe________ofolderanimals.

1.Medicalcloningcouldbeusedto_______seriousillnessesinhumans.

2.Animalclonesmaydie_______thanthedonoranimals.

2.Gardenerscanusecloningtoproduce_____________qualitiesplants.

3._____leadersmaywanttoclonethemselves.

3.Cloningisvaluableforresearchon___________________.

4.Thereare________questionsofcloninghumanbeings.

4.Cloningcanhelpsave__________________animalsStep5.Challengeyourself阅读下面材料，在空白处填入适当的内容（不多于3个词）或括号内单词的正确形式。Cloningisawayofmaking______exactcopyofanotheranimalorplant.Cloningplantsisstraight-forward_________cloninganimalsiscomplicated.Cloninganimalsisadifficulttask_______________(undertake).Butatlastthedeterminationandpatienceofscientists___________(payoff)in1996withabreakthrough——thecloningofDollythesheep.Thefact_______Dollyseemedtodevelopnormallywasveryencouraging.Thencamethedisturbingnewsthatshehadbecomeseriouslyill.Cloningscientists______________(castdown)tofindthatDolly’sillnessesweremoreappropriatetoamuch________(old)animal.AltogetherDollylivedsixandahalfyears.Dolly’sappearanceraisedastormof___________(object)andhadagreatimpact_______themediaandpublicimagination.Itbecamecontroversial.Somegovernmentsbegantoreformtheirlegalsystemsandforbaderesearchintohumancloning,butothercountriescontinuedtoaccumulateevidenceoftheabundantmedicalaid_________cloningcouldprovide.Step7.Showyourself★Groupwork2——APressConferenceaboutcloningWorkingroupsofsix.Onestudentactsasthehost,anotherstudentactsasthecloningscientistandtheotherstudentsarethejournalists,andthejournalistscanaskanyquestionsaboutcloning.____________________________________________________________________Step7.Homework1.Readthepassageagainandunderlinethesentencesinthetextcontainingtheappositivephrases（同位语）orappositiveclauses（同位语从句）.2.Writeashortpassagewiththetitle“Myopinionsoncloning.”First,youstatetheadvantagesanddisadvantagesofcloning.Attheendofyourpassage,youcanaddyourownopinion.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________学后反思：________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________课标分析高中英语人教版选修八是人教版系列教材的选修教材，旨在使学生在必修教材基础上进一步明确学习目标，发展自主学习的能力和合作精神；注重对学生进行综合语言运用能力的培养，同时注重提高用英语获取信息、处理信息、分析问题和解决问题的能力，以及用英语进行思维和表达的能力。不仅为学生提供丰富的选择机会和充分的表现空间，还使学生的语