Cloning第二課時(shí)Languagepoints導(dǎo)學(xué)案

Book8Unit2CloningPeriod2Languagepoints(ReadingI)導(dǎo)學(xué)案年級(jí):高二學(xué)科:英語教材版本:人教課標(biāo)課題:Cloning課型：NewTeachingLearningaims(學(xué)習(xí)目標(biāo)):Tomasterthebasicknowledge,suchastheusagetheimportantwords,usefulphrasesandsentencepatterns.Importantpoints(學(xué)習(xí)重點(diǎn)):Tomastertheusageofthenewwordsandsentencepatterns.Difficultpoints(學(xué)習(xí)難點(diǎn)):Howtousethemcorrectlyandretellthepassageinyourownwords.Learningguide(方法引導(dǎo)):Domorepractice.LearningProcedures(學(xué)習(xí)過程):Step1:Warming-upReadthetextcarefullyandfillintheblanks.同步練習(xí):Cloningisawayof_____1_____(make)anexactcopyofanotheranimalorplant.Cloninghastwo___2____(主要的)uses.Firstly,gardenersuseittoproduceplants.Secondly,itis____3_____(value)formedicalresearchonanimals.Cloningplantsisstraightforwardbutthecloningofanimalsismore____4______(復(fù)雜的).Theprocedureisdifficultto____5_____(開展).In1996,scientistssucceededin___6_____(clone)Dollythesheep.ThencamethedisturbingnewsthatDollywasill._____7______Dollylivedforsixyears,Dolly’sappearanceraisedastormof_____8_____(object).Governmentbecamenervousandmany______9______(禁止)researchintohumancloning.Scientistsstill____10______whethercloningwillhelporharmusandwhereitisleadingus.Keys:，，;;;;;;;.Steptwo:Languagepoints一：?jiǎn)卧~精講1.differvi.不同；相異differencen.不同之處differentadj.不同的1).Theirhousediffersfrommineinhavingnogarage.他們的房子與我的不同，區(qū)別在于他們的沒有起車庫。2).Thetwosidesstilldifferwitheachotheroverthequestionofpay.雙方在報(bào)酬的問題上仍各持己見。[拓展]AdiffersfromBin...A與B在……方面不同 AdifferswithBabout/on/over...A與B就……意見相左2.undertakevt.(undertook;undertaken)著手；從事；承擔(dān)；同意，答應(yīng)，保證(后接todo)1).Sheundertooktheresponsibilityforthesechanges.她承擔(dān)了做出這些改變的責(zé)任。2).Heundertooktopaythemoneybackinonemonth.他答應(yīng)在一個(gè)月之內(nèi)還錢。[練習(xí)]翻譯1).她答應(yīng)在周五之前完成那份工作。________________________________________2).他負(fù)責(zé)整個(gè)項(xiàng)目的組織工作。___________________________________________Keys:1).SheundertooktofinishtheworkbeforeFriday.2).Heundertooktheorganizationworkofthewholeproject.3.disturbvt.擾亂,使不安,弄亂disturbedadj.被亂的,動(dòng)亂的,不安的disturbingadj.令人不安的/煩擾練習(xí)：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；不準(zhǔn)；阻止妨礙1).Thelawforbidstheuseofchemicalfertilizers.法律禁止使用化學(xué)肥料。2).Iforbidyoutotellhim.我不準(zhǔn)你告訴他。[拓展]forbidsth./doingsth.禁止，不許（做某事）forbidsb.todosth.禁止某人做某事Hisfatherforbadehimtotalktoher.5.accumulatevt.&vi.積累；聚積accumulationn[u,c]積累1).Byinvestingwiselysheaccumulatedafortune.她由於投資精明而積蓄了一筆財(cái)產(chǎn)。2).Dustanddirtsoonaccumulateifahouseisnotcleanedregularly.房屋不經(jīng)常打掃,塵土很快就越積越多。6.obtainvt.(正式；尤指通過努力或計(jì)劃)獲得；得到obtainableadj能得到的;可獲得的1).Ihaven’tbeenabletoobtainthatrecordanywhere.我到處都沒買到那張唱片。2).Hesaidthatthepolicehadobtainedthisinformationbyillegalmeans.他說警方是靠非法手段獲得這一資料的。[拓展]obtainsthfromsb/sth從……獲得某物二．.重點(diǎn)詞組1.payoff得到好結(jié)果，取得成功(常用主動(dòng)態(tài))；償清債款；付清工資解雇 1).Atlast,hishardworkpaidoff.最后，他的努力得到了回報(bào)。2).Didyourplanpayoff?你的計(jì)劃成功了嗎?[拓展]pay短語：payfor付……的錢；為……而付出代價(jià)paybacksth.(paysb.backsth.)償還paysb.(...)forsth.因某事而付某人……paysb.(...)todosth.付某人(……)去做某事2.castdown：feelingunhappyanddepressed使沮喪,低沉，使下降,推翻becastdown=feeldiscouraged實(shí)驗(yàn)失敗使得他很沮喪。Hewasmuchcastdownbythefailureoftheexperiment.不要沮喪。繼續(xù)保持你的精神。3.infavorof贊成；支持；對(duì)……有利1).Iaminfavorofyoursuggestion.我贊成你的提議。2).ItalkedtoSusanaboutit,andshe’sallinfavorofgoing.我與蘇珊談了這件事，她完全贊同走。[拓展]askafavor請(qǐng)求幫忙 dosb.afavor=doafavorforsb.幫某人的忙1).Allthegirlsspoke__________________theproposal.2).Wouldyou________________________(請(qǐng)你幫忙)andcarrythesethings?Keys:1).infavourof2).domeafavor三：重點(diǎn)句子Thefactthatsheseemedtodevelopnormallywasveryencouraging.她（多莉羊）似乎生長(zhǎng)正常的事實(shí)很鼓舞人心。[解釋]“thatsheseemedtodevelopnormally”是一個(gè)同位語從句，作thefact的同位語。同位語從句一般由that引導(dǎo)，常放在fact，truth，news，information，idea，thought，hope，suggestion，advice，reply，remark，report等名詞后面，說明該名詞的具體內(nèi)容。當(dāng)先行詞是problem，question或當(dāng)主句是表示疑問或否定意思時(shí)，連接詞要用whether或其他的疑問代詞或副詞。如：1).ThenewsthathehasbeenelectedpresidentoftheUnitedStatesistrue.他當(dāng)選美國(guó)總統(tǒng)的消息是真的。2).Thequestionwhetherweshouldcontinuetodotheexperimenthasnotbeenansweredyet.我們是否該繼續(xù)實(shí)驗(yàn)的問題還沒有被解決。3).Ihavenoideawherethenewlibrarywillbebuilt.我不知道新圖書館將要建在哪。翻譯句子：1).Thequestion_______weneedtospendmoretimeontheprojecthasnotbeendiscussed.2).Theexplanation_______hehadmetwithanaccidentonhiswaywasacceptable.Keys:1)whether2).thatStep3BrainStorm用幾分鐘進(jìn)行本課所學(xué)語言點(diǎn)進(jìn)行消化記憶，以一問一答的形式，提問內(nèi)容為本課所有講解，包括句子短語用法等。Step3Homework1)Rememberwhatwelearnedinclassandprepareforthenextlesson.2)DotheExercisesOnPage13and14.自我測(cè)評(píng)一，根據(jù)句意用正確的單詞填空。1.Thesetwodesignsarealmosti_______.2.Thisbookmadeagreati__________onitsreaders.3.Smokingisf_________intheconcerthall.4.Isthereanye_________forhisguilt?5.Theclimatehered_________fromthatoftheSouth.Keys：1.identical2．impact3.forbidden4.evidence5.differs二，F(xiàn)illintheblankswithrightwords。Reproductivecloningisintendedtoproduceac____①_____ofanexistinga_____②_____oraplant.Reproductivecloningofanimalisa_______③_______fortechnologyandfarmingaswellasforcloninge_____④_______animals.Burreproductivecloningofhumanbeingsisspecificallyf_____⑤______bylawinmostc_____⑥______.Therapeuticcloningistoproduceahealthcopyofas______⑦_(dá)_____person’stissueororganfortransplantinordertosavethelivesofthosewhowouldd_____⑧______withoutit.Thist_____⑨_______wouldbemanytimesbetterthanr_____⑩_______onorgantransplantsformotherpeople.Thetissueororganwouldhavethesickperson’soriginalDNAKeys;1.copy2.animal3.allowed4.endangered5.forb