2023学年完整版Unit2Cloning设计8

Unit2Cloning第3课时教学设计Teachingaim:掌握科普文章的阅读方法及策略TeachingkeypointsanddifficultyHelpstudentsanalyzethereadingtechniqueofthearticle.Teachingperiods一课时学习过程：Newwords:预习下列单词，并会默写1.精确的2.商业的3.坦率的4.着手，承担5.突破6.程序，步骤7.携带者8.总共9.任意的10.修改，改正11.反对12.媒介13.获得，赢得14.获得，到达15.道德的16.保守的，守旧的17.禁止18.积累Step1:Findoutthemainideaofeachparagraph.Para1.Para2.Para3.Para4.Para5.(a)Cloninghastwomajoruses.(d)TheproblemsofDolly.(b)TheeffectofDolly.(c)Itisforbiddentoclonehumanbeings.(e)Cloningisawayofmakinganexactcopyofanotheranimalandplant.Step2:Readthepassagequicklyandfinishthefollowingcomprehensiveexercises.Choosetherightansweraccordingtothetext.thesheep_____.A.lookedexactlylikethesheepthatprovidestheegg.B.wastheexactcopyofthesheepthatprovidesthenucleus.C.lookedlikethesheepthatgavebirthtoit.D.hadthecharacteristicsofallthreesheep.2.Itcanbeinferredfromthepassagethataclonedanimal_____.

A.usuallylivesaslongastheoriginalone

B.usuallyliveslongerthantheoriginalone

C.usuallyliveslongerthantheoriginalone

D.isusuallyashealthyastheoriginalone3.Whichofthefollowingisnotanadvantageofcloning?Cloningcanbeusedformedicalpurposes.Largequantitiesoffoodcanbeproducedbycloning.Cloningcanhelpkeepanimalsfrombecomingextinct.Famouspersonswhohavepassedawaycanbecloned.canusetheskillofcloningto__________.A.bringaboutglobalpeaceB.createotherfamousscientistsC.improvethedevelopmentoflearninglanguageD.curesomespecialdiseases5.Whatarepeoplecloningnow?__________A.Theyarecloningtrees,cropsaswellasanimalsB.TheyarecloningbooksandmachinesC.TheyarecloninghumansandanimalsD.TheyarecloningplantsandscienceStep3:Detailreading

Fillinthechartusingtheinformationfromthetext.(1)Problemsordangersofcloning:a)Animalsmay____________________ofolderanimals.b)Animalclonesmay____________thanthedonoranimalsc)___________maywanttoclonethemselves.d)Thereare___________________tocloninghumanbeings.(2)Advantagesofcloninga)Medicalcloningcould_____________forseriousdegenerative(变质的）________inhumans.b)Cloningplantscan_____________ofsimilar______________________.c)Cloningplantscanbe_____________forresearchonnew________________.d)Cloningcanhelpsave____________________Ⅰ.课文词汇等填空（旨在复习本课文中的单词拼写和主要词语等）根据课文内容完成下面语法填空，注意单词拼写和词语用法：Cloningisawayof_____1_____(make)anexactcopyofanotheranimalorplant.Cloninghastwo___2____(主要的)uses.Firstly,gardenersuseittoproduceplants.Secondly,itis____3_____(value)formedicalresearchonanimals.Cloningplantsisstraightforwardbutthecloningofanimalsismore____4______(复杂的).Theprocedureisdifficultto____5_____(开展).In1996,scientistssucceededin___6_____(clone)Dollythesheep.ThencamethedisturbingnewsthatDollywasill._____7______Dollylivedforsixyears,Dolly’sappearanceraisedastormof_____8_____(object).Governmentbecamenervousandmany______9______(禁止)researchintohumancloning.Scientistsstill____10______whethercloningwillhelporharmusandwhereitisleadingus.小结与反思家庭作业(独立完成后再看参考答案)II.课文佳句背诵与仿写（旨在培养对难句的理解和写作能力）1.【原句】Thefactthatsheseemedtodevelopnormallywasveryencouraging.多莉看来是在正常地成长着，这很令人鼓舞。[模仿要点]句子结构：同位语从句【模仿1】学校取消体育运动的想法非常令人丧气，依我的观点，这并不能防止学生受伤。_______________________________________________________________________________________________________________________________________________________________________________________________________【模仿2】谚语“诚为上策”是众所周知的，它说明了诚实的重要性。__________________________________________________________________________________________________________________________________________2．【原句】Theadvantageisthatifthereisanewillnesssomeoftheseanimalsmydie,butotherswillsurviveandpassontheabilitytoresistthatdiseasetothenextgeneration.其优点是，如果发生了某种新的疾病，这类动物可能会死去，而另外一些却能存活下来，并且把这种抗疫力传给下一代。[模仿要点]句子结构：表语从句+条件句,【模仿1】网上购物的弊端是，如果你在网上买了质量差的商品，你不可能会换的了；但你可以在真正的商店里精挑细选。________________________________________________________________________________________________________________________________________________________________________________________________________________【模仿2】早起的优势是，如果我们早起，我们将有机会享受清新的空气和早晨的宁静，但并不是每个人都认为这是令人遗憾的事情。_________________________________________________________________________________________________________________________________________________________________________________________________________________3.【原句】Basedonwhatweknownow,youcannotcloneanimalsthathavebeenextinctlongerthan10,000years.就我们现在所知，你不可能克隆那些绝种了一万年以上的动物。[模仿要点]句子结构：V-ed+what引导的宾语从句，+主句+定语从句【模仿1】根据调查所示，我们可以更好地理解我们对大自然所做的一切。___________________________________________________________________________________________________________________________________________________【模仿2】根据我们所读到的，我们可以得出结论是人类该对环境污染负责。___________________________________________________________________________________1.【模仿1】答案：Theideathatschoolscancelsportactivitiesisverydiscouraging,which,inmyopinion,isnotagoodwaytopreventstudentsfromgettinghurt.【模仿2】答案：Theoldsayingthathonestyisthebestpolicyiswellknowntoeveryone,whichsignifiestheimportanceofhonesty.2.【模仿1】答案：Thedisadvantageofshoppingonlineisthatifyouboughtapoorlymadego