高考语法复习专题二：主语从句

高中语法专题一：主语从句引导词从属连词：that,whether等.Thathewillcomeiscertain.that不做成分,无意义,不能省略。whether不做成分,表“_______”。连接代词who,what,whichWhatweneedismoretime.连接代词whoever,whatever,whicheverWhateverIhaveisyours.注意：(Who,whom,which,what可以和ever构成合成词,和what一样引导从句,ever起到强调作用。它们在句子中担任主干成分,并用陈述句形式)Whoeverbreaksthelawwillbepunished.Whateverwassaidheremustbekeptsecret.连接副词when,where,how,whyHowshekeepshealthyisasecret.二．语序：陈述句语序注：主语从句都是放在_______,但有时为了使句子保持平衡,避免”头重脚轻”,常用_______作_______,从而把主语从句放在_______．主语从句一些常用句型:1)Itis+n.+从句Itisapity/shamethat...遗憾的是……Itisasurprisethat…令人惊奇的是…Itisafactthat……是事实Itiscommonknowledgethat……是常识______________(很遗憾)welostthematch._____________(这是事实)hecheatedintheexam.2)Itis+adj.+从句It’scertainthat…肯定…Itispossiblethat...很可能……Itisunlikelythat...不可能……Itisobviousthat…很明显…Itisnecessary\important\natural\...that…+(should)do________________(很可能)shewillcomebacktomorrow.3)It+不及物动词+从句Ithappenedthat...碰巧……Itoccurredtomethat…我突然想起…_______________(刚好)Icameintotheofficeatthattime.4)It+be+过去分词+从句Itissaidthat...据说……Itisknowntoallthat...众所周知……Itisreportedthat...据报道……Itisbelievedthat..人们相信……Itissuggestedthat+(should）do...建议……Itmustbeadmittedthat…必须承认……Itcannotbedeniedthat…不可否认……Itmustbepointedoutthat…需指出的是……__________________(据报道)20peoplewerekilledintheaccident.5)doubt+宾语从句（1）在否定句和疑问句中，接that从句。Idon’tdoubtthathecanfinishthetaskontime./Doyoudoubtthatshewillsucceed?（2）在肯定句中，接whether/if从句。Hedoubtsifshewillkeepherword.他不敢肯定她是否会遵守诺言。（3）doubt后面接同位语从句时，否定句中that;肯定句whether/if。Thereisnodoubtthattheywillagreewithyouonthismatter.四．注意事项:1）主语从句在句首时,必须由连接词引导,不能省略.误：Theyshouldlikeeachotherisnatural.正：Thattheyshouldlikeeachotherisnatural.whether引导主语从句,if不可误：IfMaryreallyheardhimisreallydoubtful.正:WhetherMaryreallyheardhimisreallydoubtful.(_____isneededforsuccess)isyourhardwork.2.主语从句作主语时,谓语动词一般用单数形式。(______theywillarrive)hasbeentoldtotheteacher.(_____wewillgotomorrow)hasn’tbeendecidedyet.(______canjoininthesportmeet)isdecidedbytheteacher.(________itwillrainornot)isnotclear.五．总结规律规律一、主语从句一律用陈述语序,即主语在前,谓语在后。Whenhewillcomeisnotknown.规律二、连词that在从句中无实际意义,但不能省略。Thathewillnotcometothemeetingthiseveningistrue.规律三、whether可以引导主语从句,放在句首,但if不能.Whetherthemeetingwillbeputoffhasnotbeendecidedyet.规律四、含主语从句的主句谓语动词多用单数第三人称形式。Whenhewillcomeisapuzzle.规律五、what引导的主语从句,可根据表语决定主句动词的单复数形式。Whatheneedsisthatbook./Whatheneedsaresomebooks.规律六、主语从句为了避免头重脚轻现象,用it做形式主语,而把从句放在后面。Thattheearthturnsaroundthesunisknowntoall.-----------Itisknowntoallthattheearthturnsaroundthesun.1.___hemadeanimportantspeechatthemeetingwastrue.A.ThatB.WhyC.WhatD.How2.___we’llgocampingtomorrowdependsontheweather.A.IfBWhetherCThatDWhere3.Itworriedherabit___herhairwasturninggray.A.whetherB.thatC.whatD.when4.WhatIsayandthink___noneofyourbusiness.A.isB.areC.hasDhave请用恰当的主语从句连词填空:What,it,that,whether,whoever1._____youdon’tlikehimisnoneofmybusiness.2._____hesaidatthemeetingsurprisedeverybodypresent.3.________theGameswillbeheldinBeijingisnotknownyet.4.________we’llgocampingtomorrowdependsontheweather.5.________leavestheroomlastshouldturnoffthelights.用whether\if填空1.Thequestionis________thefilmisinteresting.2.________weshallattendthemeetinghasn'tbeendecidedyet.It

was

reported__1__there

was

an

accident

at

a

corner

of

the

Roman

Street

this

morning.No

one

saw__2__on

earth

happened

then.A

car

ran

into

a

truck

but

fortunately,nobody

got

injured.__3__will

be

responsible

for

the

accident

is

still

under

investigation.The

police

were

uncertain

about__4__the

driver

was

guilty.__5__the

police

should

do

now

is__6__they

must

find

out

what

led

to

the

accident.They

said

it

was

difficult

for

them

to

judge

because__7__the

accident

happened

is

not

clear.Perhaps

the

reason

was__8__the

driver

was

too

tired

to

stop

the

car

in

time.The

driver

didn't

admit

the

fact__9__he

was

over­speed

driving

at

the

turning.The

police

doubted__10__what

he

said

was

true

and

decided

to

make

a

further

investigation.1.Didyoufindthenotebook______Jimhadgivenmeformybirthday?A.whoB.whomC.whichD.whose2.Thegirl________isreadingunderthetree________mysister.A.which,isB.whom,wasC.who,isD.who,was3.Haveyouseentheman______planweweretalkingabout______yesterday?A.who,themB.its,themC.whose,/D.whose,them4.Thepolicecaughttheman_______stolemyhandbag.A.heB.thatC.whomD.which5.Heneverreadsanything______isnotworthreading.A.thatB.asC.whoD.which6.Theman________coatisbl