名词性从句-主语宾语

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1、名词性从句包括主语从句、表语从句、宾语从句、同位语从句，其关联词有:1)连接词that,if,whether;2)疑问代词who,what,which3)疑问副词when,where,how,why等名词性从句主语从句(SubjectClauses)定义:如果一个句子在复合句中充当一个主语,那么这个句子就是主语从句.Whodidthatisknowntoall.谁做的那件事，众所周知。It’sreportedthatnoonewaskilledintheearthquake.据报道地震中没有人死亡。主语从句的类型1.常规主语从句，即句子在复合句中充当一个主语（1）Thathefinishedw

2、ritingthecompositioninsuchashorttimesurprisedusall.（2）Whetherwewillgoforanoutingtomorrowremainsunknown.（3）Whowillbeourmonitorhasn'tbeendecidedyet.（4）Whomwemuststudyforisaquestionofgreatimportance.（5）Whatcausedtheaccidentremainsunknown.（6）Whateveryoudidisright.主语从句的类型（7）Whosewatchwaslostisunknown.（8）

3、Whatweneedistime.（9）Whatweneedaregooddoctors.（10）Thathelikessuchkindofbooksisveryinteresting.（11）Whatheislookingforisnoneofyourbusiness.小结:（1)引导主语从句连词有that,whether,who,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第三人称单数,但也有例外,如例9主语从句的类型2.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（1）Itiscertainthathewillwinth

4、ematch.（2）Itistruethathehasmadeaveryimportantdiscoveryinchemistry.（3）Itisverylikelythattheywillholdameeting.（4）Itisstrangethatheshoulddothat.（5）Itisimportantthatweallshouldattendthemeeting.（6）Itisstrangethatthemanshouldhavestucktohissillyideas.（7）Itisapitythatwewon'tbeabletogotothesouthtospendoursum

5、mervacation.主语从句的类型（8）Itisstillamysterywhatcausedtheaccident.（9）Itissaidthathehasgonetoshanghai.(=Heissaidtohavegonetoshanghai)（10）ItisknowntoallthatthegunpowderwasfirstinventedbytheChinese.（11）Itissuggestedthattheworkshouldbedonewithgreatcare.（12）Itseemsthathehasseenthefilm.(=Heseemstohaveseenthefi

6、lm)（13）Ithappenedthatthetwocheatswerethere.(=Thetwocheatshappenedtobethere)主语从句的类型小结:1)以that引出的主语从句,常以形式主语it引导.句式是:Itis+形容词/名词/某些动词ed+that从句.2)在有些that从句中要用虚拟语气(should+do,should+havedone),should可以省略.1)It+be+adj.+从句*Itwasobviousthatthedrivercouldnotcontrolhiscar.*Itwasnecessarythatthedriverascarefully

7、ashecould.2)It+be+n.+从句*Itisapitythathemissedthelecture.3)It+be+过去分词+从句*Itissaidthattheyhavewonthegame.4)It+be+vi.+从句*Itseemsthatsomethingiswrongwiththecomputer.2.宾语从句宾语从句在句中作及物动词或介词的宾语。Wecanlearnwhat