Unit2CloningLanguagepoints导学案- 高中英语人教新课标选修八

高二英语选修8unit2Cloning导学案Period3Languagepoints一．学习目标：1.TogettheSstolearntousetheimportantnewwordsandphrasesfreely.2.TogettheSstoexperiencetheprocedureofthedebatecontest.二．.教学重点Tousesomeusefulwordsandexpressions.三．Teachingdifficultpoint:1.Theunderstandingandanalyzeofsomedifficultandlongsentencesinthetext.2.AsktheSstotalkaboutcloning.三．预习自测Discusstheadvantagesanddisadvantagesofcloning.ProblemsordangersofcloningAdvantagesofcloning四．作探究：Languagepoints:1.Thishappensinplantswhengardenerstake…whentwinsidenticalinsexand…1)“whengardenerstakecuttingsfromgrowingplantstomakenewones,…whentwinsidenticalin…是两个时间状语从句。when引导的时间状语从句中从句的动作可以与主句的动作同时发生，也可以先于主句的动作。

Don’tbeafraidofaskingforhelp_____itisneeded.

A.unlessB.sinceC.althoughD.when2)happenvi.occurbychance;takeplace(偶然地)发生;出现happentodo…happentosb.Ithappenedthat…happeningn.事件;偶然发生的事(常用复数)辨析:happen,occur,takeplace与comeabout四词都有“发生”之意,但有区别。happen是一般用语,词义较广,强调事情发生的偶然性;occur用法较正式,既可以指自然发生,也可以指有意安排。takeplace一般指有计划,按事先安排的进行的含义。comeabout往往注重事情发生的原因,常与how连用。以上四组词均为不及物动词,无被动语态。Usetheabovewordstofillintheblanks1)Whendidtheexplosion________?2)Importantelections_______thisfall.3)Theconcertwill___________nextSunday.4)Howdidthequarrel___________?2.undertakevt.(undertook;undertaken)着手做,从事,进行;担任,承担,答应,Theprocedureisdifficulttoundertake,ofcourse.当然,这个过程很难实施。Thescientistundertakestheexperiment.科学家从事这项实验。Icanundertaketheresponsibilityforthechanges我愿意承担这些变革的责任。完成下列句子。1)Thelawyer__________anewcase.那个律师接了一个新的案子。2)Hewill___________________nextmonth(去旅行).3)He________________________.(承担一项新任务)3.payoff(事业、计划等)成功;付清薪水并解雇;偿还(债务等)。Atlastthedeterminationandpatienceofscientistspaidoff…最终科学家们的决心和耐心得到了回报……Hepaidoffthecrewoftheship.他付清全体船员的工资并将他们解雇。Intheendhepaidoffallhisdebts.最终他还清了所有的债务。payback报答;报复用介词back,off,to,填空：1)--Youreffortissuretopay_____.--Thankyouforyourencouragement.2)Thesupermarket_____whichhehadeverpaidavisit,wasburnttotheground.3)HowcanIpayyou______forallyourkindness?4)Well,aftertheseyears,we’veatlastpaid______allourdebts.4.Thefactthatsheseemedtodevelopnormallywasveryencouraging.多莉看来是在正常地成长着,这很令人鼓舞。

“thatsheseemedtodevelopnormally”是同位语从句。同位语从句可由when/where/how/why/that/whether等词引导。先行词多半是idea/fact/news/hope/belief/thought/doubt/question等。同位语从句一般放在抽象名词之后,用以说明抽象名词的具体内容,有时为了保持句子的平衡,同位语从句还可以放在动词的后面。如:Soonwordcamethatwewon.5.ThencamethedisturbingnewsthatDollyhadbecomeseriouslyill.然后传来了多莉病重的坏消息。

本句中,副词then放于句首,主语是名词“news”,“thatDollyhadbecomeseriouslyill”是同位语从句,句子用了倒装语序。

Inthedarkforests_____,somelargeenoughtoholdseveralEnglishtowns.A.standmanylakes

B.liemanylakesC.manylakeslie

D.manylakesstand6.castdown使沮丧;毁掉(常用于被动语态或作表语)CloningScientistswerecastdowntofindthatDolly’sillnessweremoreappropriatetoamucholderanimal.克隆科学家沮丧地发现多莉的病更容易在年老的羊身上。不要这么沮丧,打起精神来！Don’tbesocastdown.Justkeepupyourspirits.castaway丢弃castoff放弃;丢弃castout赶走将下列句子译成英语。1)听到这个消息他很沮丧。___________________________________2)发现事情的真相使他很沮丧。_____________________________________7.objectvi.Weobjecttobeingtreatedlikethis.我们抗议这种待遇。Iobjecttotheplan.我反对这项计划。objectvt.Iobjectthatheistooyoungtotakethatposition.我提出反对意见:他太年轻不适合那个职位。 objectto(doing)sth.object+that从句objection是名词,常与have,take,feel等连用have/take/feelobjectionto(doing)sth.即时练习:句型转换(1)Haveyouanyobjectiontomyopeningthewindow?=Wouldyou___________myopeningthewindow?(2)takeobjectiontosmoking.=I__________smoking.(3)“Butheistooyoung,”sheargued.=She________thathewastooyoung.13.attainvt.获得(尤其指经过努力)达到(年龄,水平,状况等)Heattianedsuccessthroughhardwork.Heattainedtheageof25beforemarriaging.比较：obtainvt.(经买,借,拿等)获得,得到某物Healwaysmanagestoobtainwhathewants.WherecanIobtainacopyofherlatestbooks?8.forbidvt.(forbade;forbidden)禁止,不许,妨碍,阻止Governmentsbecamenervousandmanyforbaderesearchintohumanclothing.政府开始感到不安,有许多政府禁止对克隆的研究。Smokingshouldbeforbiddeninpublicplaces.公共场所应禁止吸烟。Herfatherforbidhertogooutalone.她父亲不许她单独外出。Iforbidyouenteringmystudy.我不许你进入我的书房。forbidsb.todo/forbidsb.fromdoingsth.禁止某人做某事

forbidsth.禁止某事与forbid结构相同的词有：

permitsbtodo/permitdoingsth允许某人做某事/允许做某事；allowsb.todo/allowdoingsth允许某人做某事/允许做某事；advisesb.todo/advisedoingsth.建议某人做某事/建议做某事1)Theschool____________________________(禁止学生吸烟).2)Heisforbiddento_______________(进入这个房间).3)Therearelawsinsomecountrieswhichforbidadvertisements__atinappropriatetimesandplaces.A.beingshownB.shownC.showD.tohaveshown4)Attheconferencehewasforbidden_____thesubjectagain.A.mentioningB.tomentionC.mentionD.mentioned9.Isitinfavourofcloningoragainstit?

infavourof是固定短语,意思为:赞同,支持;等同于approveof。如：

Astoeducation,mostspecialistsareinfavouroffurtherreform.关于教育问题,多数专家支持做进一步改革。

doafavourforsb./dosb.afavour

帮某人一个忙

与infavourof结构相同的短语有：inpraiseof表扬inhonorof/inmemoryof纪念incaseof如果,假使inchargeof掌管inpossessionof拥有inconsequenceof由于,作为……的结果用上述短语填空。

1)Allhisfamilyare_____________hisdecisiontoworkinwesternareaaftergraduation.

2)Whilereading,_____________comingacrossnewwords,you’dbetterguesstheirmeaningsratherthanrefertothedictionary.

3)Marytoldmethatshewas_______________somelovelyjewels.

4)Theyhadtomovetoanothercity________________thetyphoon.五．当堂检测及总结提升：1.Inmanyaspectsnaturalclones,suchasidentica