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1、Unit1AlandofdiversityRevisingusefulstructures从句一律保持陈述句的语序。主语从句(Subjectclause)宾语从句(Objectclause)表语从句(Predicativeclause)同位语从句(Appositiveclause)名词从句名词性从句基本结构:引导词+从句(陈述句语序)相当于一个名词成分,在句中作主语、宾语、表语或同位语。WhatIwanttodoistogohomeimmediately.IsaidthatIwanttogohomeimmediately.Myho
2、peisthatIwanttohomeimmediately.Thefactthattheearthgoesaroundthesunisacceptablenow.主语从句宾语从句表语从句同位语从句Thathefinishedwritingthecompositioninsuchashorttimesurprisedusall.2.Whetherwewillgoforanoutingtomorrowremainsunknown.3.Whowillbeourmonitorhasn'tbeendecidedyet.主语从句定义:在复合
3、句中充当主语的句子叫做主语从句。4.Whomwemuststudyforisaquestionofgreatimportance.5.Whatcausedtheaccidentremainsunknown.6.Whateveryoudidisright.7.Whosewatchwaslostisunknown.8.Whatweneedistime.9.Whatweneedaregooddoctors.10.Itiscertainthathewillwinthematch.小结:(1)引导主语从句连词有that,whether,wh
4、o,what,whatever等;(2)连词位于句首不能省略;(3)主语从句大多数情况下视为三单,但也有例外,如例句9;(4)为了防止句子头重脚轻,通常把形式主语it放在主语位置,真正主语搁置于句末;(5)主语从句的时态不受主句的时态影响和限制。Itisstillunderdiscussion______theoldbusstationshouldbereplacedwithamodernhotelornot.(2011重庆)A.whetherB.whenC.whichD.where解析:根据句意:旧车站是否被一个现代化旅馆代替还
5、在讨论之中。后面出现了ornot,故选whether。A真题解析_____BarbaraJonesofferstoherfansishonestyandhappiness.(2011北京)A.WhichB.WhatC.ThatD.Whom解析:what引导的是主语从句,在从句中充当offers的宾语。句意为:芭芭拉琼斯为她的粉丝所提供的是诚实和快乐。BItwasneverclear_____themanhadn’treportedtheaccidentsooner.(2011江苏)A.thatB.howC.whenD.why解析:
6、it做形式主语,真实主语由后面的句子来充当。从主语从句的句子成分看,表示原因是最恰当的。句意为:那个人并没有早点儿报告这次事故,其原因还不清楚。DHismothersaid(that)SaulGrantwasamusiccritic.Hisreportiscorrectexceptthatsomedetailsareomitted.Tellmehowyouwenttoschool.Iamnotinterestedinwhatheisdoing.Thebossaskedmewhether/ifshewasqualifiedforth
7、etask.宾语从句定义:名词性从句在复合句中作谓语动词、非谓语动词或介词的宾语时被称为宾语从句。小结:(1)宾语从句中that引导词可以被省略;(2)that从句作介词宾语只用于exceptthat和inthat结构;(3)在think,believe,suppose,expect等动词引起的宾语从句中,有时谓语尽管是否定意义,却不用否定形式,而将think等动词变为否定形式,称为“否定前置”;(4)宾语从句的时态受主句的限制,如果宾语从句说的是客观真理、自然现象或事实时,这时宾语从句要用一般现在时态。注意:suggest,ad
8、vise,order,command,insist,require,request等动词常接含虚拟语气的宾语从句:should+do。动词wish后的宾语从句也用虚拟语气。IwishIwereabird.IwishthatIhadmethimye