人教新课标必修三 Unit 4 Astronomy-Grammar[主语从句教学课件].ppt

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1、SubjectClauseIthink“mother”isanimportantwordtolearnandthat“mother”isanimportantpersontolove.objectclause宾语从句2.Itisnecessarythatweshouldloveourmothers,respectthemandtakecareoftheminfuture.subjectclause主语从句3.Mydreamisthatonedaythereisnogenerationgapbetweenourmumsandus.predicativec

2、lause表语从句RevisionFindthesubjectsinthefollowingsentences.1.Atreehasfallenacrosstheroad.2.Youareastudent.3.Tofindyourwaycanbeaproblem.4.Smokingisharmfultoyou.5.Whatshesaidisnotyetknown.6.Thatweshallbelateiscertain.7.It’scertainthatweshallbelate.主语从句在句中充当主语的从句叫做主语从句。1Thathewillcome

3、iscertain.2Whetheritwillpleasethemisnoteasytosay.3Whatseemseasytosomepeopleseemsdifficulttoothers.4Whichsidewillwinisnotclear.5Whyhediditremainsamystery.Findthesubjectclausesinthefollowingsentences,andtranslatethem.思考：主语从句有哪些引导词，这些引导词如何选用？6Whentheywillstartisnotknownyet.7Howhebe

4、cameagreatscientistisknowntousall.8Whowilltakepartinthemeetinghasnotbeendecided.9Whoeverbreaksthelawwillbepunished.10Wheresheisfromisunknown.主语从句的引导词：连词that,whether连接代词who(ever),whom(ever),which(ever),what(ever)连接副词where,when,why,how1.他们是否卖掉这所房子还没有决定。________theywillsellthehouse

5、isnotyetdecided.这里能用if代替whether吗？为什么？if可以引导主语从句,但不能用于句首,而应放在句尾,用it做形式主语.汉译英合作探究依据“缺什么补什么”原则确定正确的连词。所谓“缺什么补什么”是指句型结构与连词之间的关系。如果句子中缺主语，指人用who，指物用what；如缺宾语，指人用whom，指物用what；如缺时间状语用when；地点状语用where；原因状语用why；方式状语用how；定语用what或which；什么都不缺用that。Wherehewillgoisunknown.Whatyousaidyesterdayi

6、sright.ThatheknowsJapaneseisknowntoall.Whetherheiscomingdoesn’tmattermuch.Completethesentencesusingwhat,whether,where,when，who,why,howorthat.1.(_____isneededforsuccess)isyourhardwork.3.(_____wewillgotomorrow)hasn’tbeendecidedyet.2.(______theywillarrive)hasbeentoldtotheteacher.4.

7、(___canjoininthesportmeet)isdecidedbytheteacher.5.(________itwillrainornot)isnotclear.7.(______theearthisasolidball)isknowntousall.WhatWhen/HowWhere/whetherWhoWhetherThat6.(____theearthisbecomingwarm)isagoodtopicforresearch.Why主语从句作主语时，谓语动词一般用单数形式。Conclusion:注意：Whatyouleftareonl

8、yseveraloldbooks.Whatyousaidisofgreatimportance