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时间:2020-03-02
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1、主语从句Herjobisteaching.Whatshedoesisteaching.在句中充当主语的从句叫做主语从句。定义1Thathewillcomeiscertain.2Whetheritwillpleasethemisnoteasytosay.3Whatseemseasytosomepeopleseemsdifficulttoothers.4Whichsidewillwinisnotclear.5Whyhediditremainsamystery.6Whentheywillstartisnotknownyet.7Howhebecameagreatscienti
2、stisknowntousall.8Whowilltakepartinthemeetinghasnotbeendecided.9Whoeverbreaksthelawwillbepunished.10Wheresheisfromisunknown.连接词that①无实际意义②只起连接作用是否连接词如何选用?1.从句中什么成分都不缺,用2.从句中需要表“是否”的词,用3.其他,缺什么补什么连接词的选用thatwhether如缺“哪一个”的意思,用which主语从句的连接词:连接词that,whether连接代词who(ever),whom(ever),which(eve
3、r),what(ever)等连接副词where,when,why,howThathewillrefusethispieceofadviceisimpossible.Itisimpossiblethathewillrefusethispieceofadvice.It作形式主语itIt作形式主语的四种常用句型It+be+名词+that从句It+be+形容词+that从句It+不及物动词+that从句It+be+动词的过去分词+that从句1)Itis+n.+从句Itisapity(遗憾)/afact/asurprisethat…*_______________(很遗憾)w
4、elosethematch.*______________(这是事实)hecheatedintheexam.ItisapitythatItisafactthat2)Itis+adj.+从句Itispossiblethat...It’scertainthat…*_________________(很可能)shewillcomebacktomorrow.Itispossiblethat3)It+不及物动词+从句Ithappenedthat...刚好…;碰巧…Itoccurredtomethat…我突然想起…*________________(刚好)Icameintothe
5、officeatthattime.*____________________(我突然想起)Iforgettosendtheletter.IthappenedthatItoccurredtomethat4)It+be+过去分词+从句Itissaidthat...Itisknowntoallthat...Itisreportedthat...*___________________(据报道)20peoplewerekilledintheaccident.Itisreportedthat主语从句的虚拟语气①表“应该,惊讶、惋惜、遗憾”等意义Itisimportant/nat
6、ural/necessary/strangethat...谓语形式为:(should)+V.原形eg.很奇怪,他竟没有来。Itisstrangethat___________________.※heshouldnotcome②表示“据建议、据要求、据命令”It+be+suggested/advised/ordered/requested/commanded/insisted/requiredthat…谓语形式为:(should)+V.原形据命令,所有乘客必须接受搜查Itwasorderedthatallthepassengers____________________
7、_.(should)besearchedIfhewillcometothemeetingisnotcertain.Whetherhewillcometothemeetingisnotcertain.Itisnotcertainifhewillcometothemeeting.Itisnotcertainwhetherhewillcometothemeeting.看句子正误,并总结规律×Conclusion:引导主语从句在句首只能用whether,有it作形式主语的whether/if都可以.主语从句的其他规则Whenhewillcomeareapuz
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