《主语从句重点》PPT课件

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1、NounclausesasthesubjectUnit4Grammar主语从句1.______watchwaslostisunknown.2.________youdidisright.3._________wewillgoforanoutingtomorrowremainsunknown.4.______weneedistime.5.______willbeourmonitorhasn'tbeendecidedyet.whetherwhatwhowhosewhateverUsethewordsbelowtofillintheblanks.

2、WhetherWhatWhateverWhoseWho上面的空大家都填对了吗?上面每个句子都出现了的主语从句，大家能找到吗？1.Whosewatchwaslostisunknown.2.Whateveryoudidisright.3.Whetherwewillgoforanoutingtomorrowremainsunknown.4.Whatweneedistime.5.Whowillbeourmonitorhasn'tbeendecidedyet.请把下列句子的谓语找出来1.Whosewatchwaslostisunknown.2.Wha

3、teveryoudidisright.3.Whetherwewillgoforanoutingtomorrowremainsunknown.4.Whatweneedistime.5.Whowillbeourmonitorhasn'tbeendecidedyet.请把下列句子的谓语找出来1.Whosewatchwaslostisunknown.2.Whateveryoudidisright.3.Whetherwewillgoforanoutingtomorrowremainsunknown.4.Whatweneedistime.5.Whowi

4、llbeourmonitorhasn'tbeendecidedyet.主语从句(SubjectClause)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。Thathefinishedwritingthecompositioninsuchashorttimesurprisedusall.Whatweneedaregooddoctors.Whomwemuststudyforisaquestionofgreatimportance.连接词1.thatThattheearthmovesaroundthesuniswellknown.

5、2.whetherWhetherhewillcomeornotisnotknownyet.3.whoWhowillbesenttherehasnotbeendecided.4.whatWhatyouneedismorepractice.5.whichWhichoneisthebestisnotclear.6.when,whereWherehehasgoneisaquestion.7.why,howWhythereisgravityishardtounderstand.HowhecanearnalivinginBritainremainsab

6、igproblem.8.whoever、whatever、whichever可引导主语从句。Whoevercomeswillbewelcome.Whateverhedidwasright.Whicheverofyoucomesinwillreceiveaprize.引导主语从句不能用if代替whether,但主语从句后置时，可用if引导2.连词位于句首不能省略，主语从句后置的时候，that可以省略。3.主语从句大多数情况下视为第三人称单数,但在关系代词what引导的主语从句后谓语动词的数要根据句意而定。小结Chooserightwordsf

7、orthesesentences.1.theywillsellthehouseisnotclearsofar.(Whether/If)注解：在句首引导的主语从句,不用来替换.2.①discoveredAmericaisknowntoall.②ColumbusdiscoveredAmericaisknowntoall.(What/Who/That)WhetherWhoThatwhetherif注解：在主语从句中无,不充当,但不能.实际意义句子成分省略that注意：1.Whetheryoucansucceeddependsonyourself.

8、2.Whatweneed_____water.Whatweneed_____usefulbooks.(is/are)注解：主语为从句时，谓语动词一般要用单数形式；isare但如果