Cloning第二课时Languagepoints导学案

Book8Unit2CloningPeriod2Languagepoints(ReadingI)导学案年级:高二学科:英语教材版本:人教课标课题:Cloning课型：NewTeachingLearningaims(学习目标):Tomasterthebasicknowledge,suchastheusagetheimportantwords,usefulphrasesandsentencepatterns.Importantpoints(学习重点):Tomastertheusageofthenewwordsandsentencepatterns.Difficultpoints(学习难点):Howtousethemcorrectlyandretellthepassageinyourownwords.Learningguide(方法引导):Domorepractice.LearningProcedures(学习过程):Step1:Warming-upReadthetextcarefullyandfillintheblanks.同步练习: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.Keys:，，;;;;;;;.Steptwo:Languagepoints一：单词精讲1.differvi.不同；相异differencen.不同之处differentadj.不同的1).Theirhousediffersfrommineinhavingnogarage.他们的房子与我的不同，区别在于他们的没有起车库。2).Thetwosidesstilldifferwitheachotheroverthequestionofpay.双方在报酬的问题上仍各持己见。[拓展]AdiffersfromBin...A与B在……方面不同 AdifferswithBabout/on/over...A与B就……意见相左2.undertakevt.(undertook;undertaken)着手；从事；承担；同意，答应，保证(后接todo)1).Sheundertooktheresponsibilityforthesechanges.她承担了做出这些改变的责任。2).Heundertooktopaythemoneybackinonemonth.他答应在一个月之内还钱。[练习]翻译1).她答应在周五之前完成那份工作。________________________________________2).他负责整个项目的组织工作。___________________________________________Keys:1).SheundertooktofinishtheworkbeforeFriday.2).Heundertooktheorganizationworkofthewholeproject.3.disturbvt.扰乱,使不安,弄乱disturbedadj.被乱的,动乱的,不安的disturbingadj.令人不安的/烦扰练习：用disturb,disturbing,disturbed填空。(1)I’mvery__________aboutAlice.disturbed(2)Don’t_________thepapersonmydesk.disturb(3)Thiscountryisina____________state.disturbing4.forbidvt.(forbadeorforbad;forbidden)禁止；不准；阻止妨碍1).Thelawforbidstheuseofchemicalfertilizers.法律禁止使用化学肥料。2).Iforbidyoutotellhim.我不准你告诉他。[拓展]forbidsth./doingsth.禁止，不许（做某事）forbidsb.todosth.禁止某人做某事Hisfatherforbadehimtotalktoher.5.accumulatevt.&vi.积累；聚积accumulationn[u,c]积累1).Byinvestingwiselysheaccumulatedafortune.她由於投资精明而积蓄了一笔财产。2).Dustanddirtsoonaccumulateifahouseisnotcleanedregularly.房屋不经常打扫,尘土很快就越积越多。6.obtainvt.(正式；尤指通过努力或计划)获得；得到obtainableadj能得到的;可获得的1).Ihaven’tbeenabletoobtainthatrecordanywhere.我到处都没买到那张唱片。2).Hesaidthatthepolicehadobtainedthisinformationbyillegalmeans.他说警方是靠非法手段获得这一资料的。[拓展]obtainsthfromsb/sth从……获得某物二．.重点词组1.payoff得到好结果，取得成功(常用主动态)；偿清债款；付清工资解雇 1).Atlast,hishardworkpaidoff.最后，他的努力得到了回报。2).Didyourplanpayoff?你的计划成功了吗?[拓展]pay短语：payfor付……的钱；为……而付出代价paybacksth.(paysb.backsth.)偿还paysb.(...)forsth.因某事而付某人……paysb.(...)todosth.付某人(……)去做某事2.castdown：feelingunhappyanddepressed使沮丧,低沉，使下降,推翻becastdown=feeldiscouraged实验失败使得他很沮丧。Hewasmuchcastdownbythefailureoftheexperiment.不要沮丧。继续保持你的精神。3.infavorof赞成；支持；对……有利1).Iaminfavorofyoursuggestion.我赞成你的提议。2).ItalkedtoSusanaboutit,andshe’sallinfavorofgoing.我与苏珊谈了这件事，她完全赞同走。[拓展]askafavor请求帮忙 dosb.afavor=doafavorforsb.帮某人的忙1).Allthegirlsspoke__________________theproposal.2).Wouldyou________________________(请你帮忙)andcarrythesethings?Keys:1).infavourof2).domeafavor三：重点句子Thefactthatsheseemedtodevelopnormallywasveryencouraging.她（多莉羊）似乎生长正常的事实很鼓舞人心。[解释]“thatsheseemedtodevelopnormally”是一个同位语从句，作thefact的同位语。同位语从句一般由that引导，常放在fact，truth，news，information，idea，thought，hope，suggestion，advice，reply，remark，report等名词后面，说明该名词的具体内容。当先行词是problem，question或当主句是表示疑问或否定意思时，连接词要用whether或其他的疑问代词或副词。如：1).ThenewsthathehasbeenelectedpresidentoftheUnitedStatesistrue.他当选美国总统的消息是真的。2).Thequestionwhetherweshouldcontinuetodotheexperimenthasnotbeenansweredyet.我们是否该继续实验的问题还没有被解决。3).Ihavenoideawherethenewlibrarywillbebuilt.我不知道新图书馆将要建在哪。翻译句子：1).Thequestion_______weneedtospendmoretimeontheprojecthasnotbeendiscussed.2).Theexplanation_______hehadmetwithanaccidentonhiswaywasacceptable.Keys:1)whether2).thatStep3BrainStorm用几分钟进行本课所学语言点进行消化记忆，以一问一答的形式，提问内容为本课所有讲解，包括句子短语用法等。Step3Homework1)Rememberwhatwelearnedinclassandprepareforthenextlesson.2)DotheExercisesOnPage13and14.自我测评一，根据句意用正确的单词填空。1.Thesetwodesignsarealmosti_______.2.Thisbookmadeagreati__________onitsreaders.3.Smokingisf_________intheconcerthall.4.Isthereanye_________forhisguilt?5.Theclimatehered_________fromthatoftheSouth.Keys：1.identical2．impact3.forbidden4.evidence5.differs二，Fillintheblankswithrightwords。Reproductivecloningisintendedtoproduceac____①_____ofanexistinga_____②_____oraplant.Reproductivecloningofanimalisa_______③_______fortechnologyandfarmingaswellasforcloninge_____④_______animals.Burreproductivecloningofhumanbeingsisspecificallyf_____⑤______bylawinmostc_____⑥______.Therapeuticcloningistoproduceahealthcopyofas______⑦______person’stissueororganfortransplantinordertosavethelivesofthosewhowouldd_____⑧______withoutit.Thist_____⑨_______wouldbemanytimesbetterthanr_____⑩_______onorgantransplantsformotherpeople.Thetissueororganwouldhavethesickperson’soriginalDNAKeys;1.copy2.animal3.allowed4.endangered5.forb