2023学年完整公开课版Unit2CloningRevisetheAppositive2

Unit2CloningRevisetheAppositiveObjectiveTorevisetheappositiveanduseitproperly.语法讲解建议采用归纳法，如尽可能多的呈现一些相关例句，或可让学生从已学课文中找相应例句，引导学生试着从所观察到的语言现象中总结出语言规则和语法规律。Lookatthefollowingsentences.FrederickWilliamI,theKingofPrussia,couldneverhaveimaginedthathisgreatestgifttotheRussianpeoplewouldhavesuchanamazinghistory.(必修2)2.ThereisnodoubtthattheboxeswerethenputonatrainforKönigsberg,whichwasatthattimeaGermancityontheBalticSea.(必修2)3.SomepeoplehavetheideathattheycancrossCanadainlessthanfivedays,buttheyforgetthefactthatCanadais5,500kilometresfromcoasttocoast.(必修3)4.ThegirlsweresurprisedatthefactthatoceanshipscansailuptheGreatLakes.(必修3)5.ThereisnodoubtthatJohn'squickthinkingandthefirstaidskillshelearnedatschoolsavedMsSlade'slife.(必修5)6.Thereisnodoubtthattheearthisbecomingwarmer…(选修6)Ontheonehand,thewholescientificworldfollowedtheprogressofthefirstsuccessfulclone,Dollythesheep.2.Thefactthatsheseemedtodevelopnormallywasveryencouraging.3.ThencamethedisturbingnewsthatDollyhadbecomeseriouslyill.4.AltogetherDollylivedsixandahalfyears,halfthelengthofthelifeoftheoriginalsheep.Sentencesfromthisunit:GuessingGametotestyoursenseofobservationtotestyourabilityofshort-termmemorytotestyourabilitytohighlightthelanguagepointsGuessFrederickWilliamI,the_____ofPrussia,couldneverhaveimaginedthathisgreatestgifttotheRussianpeoplewouldhavesuchanamazinghistory.2.Thereisnodoubt____theboxeswerethenputonatrainforKönigsberg,whichwasatthattimeaGermancityontheBalticSea.3.Somepeoplehavetheidea____theycancrossCanadainlessthanfivedays,buttheyforgetthefact____Canadais5,500kilometresfromcoasttocoast.Kingthatthatthat4.Thegirlsweresurprisedatthefact____oceanshipscansailuptheGreatLakes.5.Thereisnodoubt____John'squickthinkingandthefirstaidskillshelearnedatschoolsavedMsSlade'slife.6.Thereisnodoubt____theearthisbecomingwarmer…thatthatthat7.Ontheonehand,thewholescientificworldfollowedtheprogressofthefirstsuccessfulclone,

_____thesheep.8.Thefact____sheseemedtodevelopnormallywasveryencouraging.9.Thencamethedisturbingnews_____Dollyhadbecomeseriouslyill.10.AltogetherDollylivedsixandahalfyears,____thelengthofthelifeoftheoriginalsheep.Dollythatthathalf1.Informationhasbeenputforward___moremiddleschoolgraduateswillbeadmittedintouniversities.(2001上海)A.whileB.thatC.whenD.as解析：答案B。that引导从句作information的同位语，解释information的具体内容。2.There’safeelinginme____we’llneverknowwhataUFOis—notever.(2002上海)A.thatB.whichC.ofwhichD.what解析：答案A。同位语从句thatwe’llneverknowwhataUFOis—notever作afeeling的同位语，解释afeeling的具体内容。that连接同位语从句时只起连接作用，不作从句的任何成分。3.Thereisanewprobleminvolvedinthe

popularityofprivatecars____road

conditionsneed____.(2003上海)

A.that;tobeimproved

B.which;tobeimproved

C.where;tobeimproved

D.when;improving解析：答案为A。that引导同位语从句说明“新问题”的内容。need后既可接动名词主动式，也可接动词不定式被动式作宾语。以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解，下面就让我们根据之前练习的考察情况进一步选择讲解该语法项的重难点。1.Tom,ourmonitor,isahandsomeboy.2.Imyselfwilldotheexperiment.3.Sheistheoldestamongthemsix.4.Hetoldmethenewsthattheplanehadexploded.名词代词数词下面句子中红色部分在句中作什么成分？从句同位语TheAppositive同位语是句子成分的一种,它位于名词、代词后面,说明它们的性质和情况,它可以由名词、代词、名词性短语或从句充当。同位语的表现形式有以下几种：(1)名词(2)代词(3)数词(4)从句(5)由suchas,thatis引导

Somesubjects,suchasmathsandphysics,areverydifficulttolearn.

某些学科,例如数学和物理,是很难学的。(6)由of引导

ThecityofBeijinghasbeengreatlychangedsince2000.自从2000年以来,

北京市发生了很大的变化。(7)由or引导

Thefreezingtemperature,orfreezingpoint,isthetemperatureatwhichwaterfreezesunderordinarypressure.结冰温度即冰点,是水在常压下结冰时的温度。Thehopethathemayrecoverisnotgoneyet.Theproblemwhetherweshouldcontinuetodotheexperimenthasbeensolved.Ihavenoideawhenhewillcomeback.Whatkindofclausesarethey?TheyareAppositiveClauses.在前一单元我们讲解了名词性从句。其中我们已经接触到了同位语从句。接下来我们就详细讲解同位语从句。(1)同位语从句的定义在复合句中用作同位语的从句称为同位语从句。同位语从句是名词性从句的一种。它在句中起同位语的作用。同位语从句TheAppositiveClause它一般放在fact,news,idea,truth,hope,problem,information,belief,thought,doubt,promise,question等名词的后面,对前面的名词作进一步的解释,说明前面名词的具体含义。引导同位语从句的词有that,whether,what,how,

when,where等。同位语从句有时被别的词把它和名词隔开：注意:Thethoughtcametoherthatmaybeshehadleftthedooropenwhenshelefthome.她突然想起可能在她离开家时没把门关上。(2)同位语从句的表现形式:①由that引导

Thefactthatyouhaven’tenough

timetodotheworkissimplyunbelievable.Thehopethathemaycomehereisnotgoneyet.ThenewsthathehasbeenelectedpresidentoftheUnitedStatesistrue.Thetruththatheavyobjectsandlightobjectsfallatthesamespeedisknowntoall.Theproblemthatshelaterdevelopedaseriouslungdiseasebotheredscientists.②由whether引导

Thequestionwhetherweneedmoretimetodotheworkhasnotbeendiscussed.③由when引导

Ihavenoideawhentheywillgo.(3)同位语从句与定语从句的区别:

同位语从句与定语从句在使用中常常混淆,我们可以从以下几个方面区别它们:①同位语从句说明的名词大都是抽象名词;定语从句所修饰、限定的名词或代词有抽象的也有不抽象的。WeexpressthehopethattheywillcometovisitChinaagain.Thosewhowanttogopleasesignyournameshere.②

同位语从句所说明的名词与从句没有

逻辑关系,定语从句所限定的名词是从

句逻辑上的主语、宾语、表语、定语、

状语等。(同位语从句)(定语从句)Thenewsthattheywonthematchistrue.(同位语从句,news和从句没有逻辑关系)Thenewsthatyoutoldusyesterdayistrue.(定语从句,news是told的逻辑宾语)Theorderwhenweshouldgobackhasn’treachedus.(同位语从句,order和从句没有逻辑关系)ThedaywhenNewChinawasfoundedwillneverbeforgotten.(定语从句,day是founded的逻辑状语)③引导同位语从句的连词不可省略;引导定语从句的关系代词作宾语时常可省略。

Thenewsthathehasbeenelectedmonitorofourclassistrue.Thenews(that)hetoldmeisexciting.④同位语从句与先行词一般可变成一个完整句子,谓语动词用be的不同形式。

Heheardthenewsthattheirteamhadwon.

Thenewswasthattheirteamhadwon.此句可以变为一个表语从句:我们可以在名词和从句之间加be，使之构成一个新句子，如果合乎逻辑，句子通顺，则是同位语从句，定语从句是不能用系表结构把先行词与从句连接起来的。Thebeliefthattheearthisflatisstillheldinsomecountries.Thebeliefisthattheearthisflat.同位语从句的简易判断方法：Review一个名词或代词后面有时可以跟一个名词（或起类似作用的其他形式），对前者进一步说明它指的是谁，什么等，那么这一部分就叫做同位语。区分同位语从句与定语从句。Individualactivity1.Danbyleftwordwithmysecretary______hewouldcallagainintheafternoon.(2005浙江) A.who B.that C.asD.which2.—Isthereanypossibility______youcouldpickmeupattheairport?

—Noproblem.(2009浙江)

A.when

B.thatC.whether

D.whatI.Choosethebestanswer.3.Modern

science

has

given

clearevidence

_______

smoking

can

leadto

many

diseases.(2011天津)

A.

what

B.

which

C.

that

D.

where4.Imadeapromisetomyself_______thisyear,myfirstyearinhighschool,wouldbedifferent.(2012浙江)A.whether B.whatC.that D.how1.Ihadnoidea_________________(你在这里).2.Thebelief________________________(条条大路通罗马)issharedbymanypeople.3.Thethoughtcametohim____________

_____________________________(或许敌人已经逃离了那个城市).thatyouwereherethatallroadsleadtoRomeII.Translatethefollowingsentences.thatmaybetheenemyhadfledfromthecity4.I’vecomefromMr.Wang’shomewithamessage_________________________

__________________________________(他今天下午不能去机场为你送行了).5.Wehaven’tyetsettledthequestion______________________________________________(到哪儿去度暑假).theairporttoseeyouoffthisafternoonthathewon’tbeabletogot