名词性从句主语从句和宾语从句PPT资料.ppt

名词性从句主语从句和宾语从句PPT资料.ppt

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放到句尾放到句尾That无词义无词义,不可省略不可省略What“什么什么”,“所所.的的”2.Whatsurprisedmewastoseehimhere.When“什么时候什么时候”主语从句主语从句不用不用if位于句首位于句首主语从句的位置1.在句首2.主语较长时通常放在后面,句首主语用Ita.It+be+形容词形容词+that-从句从句Itisnecessarythat有必要有必要Itisimportantthat重要的是重要的是Itisobviousthat很明显很明显b.It+be+-ed分词分词+that-从句从句Itisbelievedthat人们相信人们相信Itisknowntoallthat从所周知从所周知Ithasbeendecidedthat已决定已决定c.It+be+名词名词+that-从句从句Itiscommonknowledgethat是常识是常识Itisasurprisethat令人惊奇的是令人惊奇的是Itisafactthat事实是事实是d.It+不及物动词不及物动词+that-从句从句Itappearsthat似乎似乎Ithappensthat碰巧碰巧Itoccurredtomethat我突然想起我突然想起注意：

注意：

用用it作形式主语的作形式主语的that-从句有以下几组：

从句有以下几组：

1.真可惜我们不能去游泳真可惜我们不能去游泳.2.碰巧那天我外出了碰巧那天我外出了.3.他考试肯定会考好他考试肯定会考好.4.据说他已告诉了她一切据说他已告诉了她一切.注意注意:

Itlookedthathewasright.（）可以说可以说:

Itlooksasif.happen只有it句型Itissaid只有it句型Itisapitythatwecantgoswimming.Itissaidthathetoldhereverything.IthappenedthatIwasoutthatday.Itiscertainthathewilldowellintheexam.宾语从句从句（同主语从句）,增加if,可与whether引导词:

互换,但不与ornot连用1.Theypretended（that）theyknewhowtodoit.2.Shesaid（that）shecouldnttellmeandthatIcouldntunderstand.宾语从句并列时宾语从句并列时,只省略第一个只省略第一个that4.Everythingdependsonwhetherwehaveenoughtime.（if）if/whether表示表示“是否是否”可以互换可以互换,四种情况四种情况用用whether:

1.在介词后面在介词后面2.与与ornot连用连用3.在主语从句在主语从句,表语从句表语从句,同同位语从句中位语从句中4后面跟不定式后面跟不定式5.Idontknowwhetherhewillcomeornot.（if）6.Thequestioniswhetherhewillagree.（if）宾语从句经常做介词的宾语宾语从句经常做介词的宾语1.TheSwedestoodstill,except_hislipsmovedslightly.2.Sheisnotsatisfiedwith_shehasachieved.3.Maryalwaysthinksof_shecandomorefortheclass.4.Hewrotealetterofthanksto_helpedhim.5.Itdependsonifwehaveenoughtime.whetherwehaveenoughtime.介词后面不用介词后面不用ifthatwhathowwhoever6.Areyousorryforwhichyouhavedone?

whatyouhavedone?

介词后面不用介词后面不用which宾语从句经常作宾语从句经常作表语形容词表语形容词的宾语的宾语1.Imafraid（that）Illbelate.2.Weweresurprisedthathewaslost.此类表语形容词有此类表语形容词有:

afraidpleasedhappysatisfiedanxioussuresurprisedcertaingladaware用它们造句用它们造句that从句只跟在从句只跟在except,but,in,besides,四个介词后面四个介词后面1.1Wehavemadethataforeignlanguageisusefulweaponinthestruggleoflifeclear.（改用形式宾语改用形式宾语it）英语有英语有句尾句尾重心重心的原则的原则IconsiderthatweshouldlearnEnglishwellnecessary.Weconsiderhersuitableforthejob.句尾太轻句尾太轻宾语宾语宾补宾补considerfindthinkfeelmake等动词常带宾语补足语等动词常带宾语补足语,这这时要用形式宾语时要用形式宾语it,宾语从句放到宾补之后宾语从句放到宾补之后Wehavemadeitclearthataforeignlanguageisusefulweaponinthestruggleoflife.IconsideritnecessarythatweshouldlearnEnglishwellit不能漏不能漏从句后移从句后移correction1.Theemperorwaspleasedbywhichtheministertoldhimaboutit.2.Areyousorryforthatyouhaveannoyedhim?

3.Ifindthatthisshouldbekeptsecretforthetimebeingnecessary.4.Canyoudoubtifshewillsucceed?

5.Iworriedaboutifmybrotherwillreturnintime.6.Shesaidthatshehasnevertoldalie.7.WillyoutellmewhenheleavesforParis?

8.OurfootballteamwonthematchlastSundayexcitedallofus.9.Itlookedthathewaswellpreparedfortheunexpectedchallenge.10.Thathesaidmovedeveryonepresent.whatitnecessarythatthisshouldbekeptsecretforthetimebeingthatshewillsucceed?

whethermybrotherwillreturnintime.hadwillleaveforParis?

ThatourfootballteamwonthematchlastSundayexcitedallofusWhatItseemedwhich不做介词宾语句尾重心从句缺少引导词that不做句子成分没有Itlookthat表达式找出下列句子中的错误，并总结出规律：

找出下列句子中的错误，并总结出规律：

1.Canyoutellmehowmanystudentsarethereinyourclass?

2.Idontknowwherehashegone.3.Theowneroftheshopcametoseewhatthematterwas.therearehehaswhatwasthematter.规律一：

名词性从句中须使用陈述语序！

规律一：

1.Ithinkthatworthwhilethatwespentsomuchmoneyonthesebooks.2.Thatishardtodecidewhenandwherewewillheldoursportsmeeting.3.Everybodyconsidersitimpossiblewhichhewantstofinishthejobinsuchashorttime.4.Itdoesntmatterthatyouwillcomeornot.ititthatwhether规律二：

主语从句和宾语从句在适当的情况规律二：

主语从句和宾语从句在适当的情况下可以借助下可以借助“itit”而后置。

而后置。

问题：

想想看是什么“适当的情况”？

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