高一英语主语从句课件人教版新课标必修1

SubjectClauses

主语从句1.主语从句：从句在句中充当主语成分1).Thathewillsucceediscertain.Whetherhewillgothereisnotknown.3)

Howwecanhelpthetwins

willbediscussedatthemeeting.

1．

引导主语从句的连接词有三类：

(1)

连词that、whether

：Whetherwegobytrainorbyboatmakesnodifference.Whether

he’ll

come

here

isn’t

clear.

Thatpricewillgoupiscertain.What

she

did

is

not

yet

known.Whowillwritethepoemhasnotbeendecidedyet.Whateverhedidisright.(2)

连接代词who,

whom,

whose,

what,

which,

whoever,

whatever,

whichever等

3)

连接副词

where,

when,

how,

why等。

How

this

happened

is

not

clear

to

anyone.

Whenhewillbebackdependsontheweather.Howthepyramidswerebuiltisstillamystery.主语从句后置!为了防止主语冗长,句子头重脚轻,经常用it作形式主语,主语从句放在后面作真正的主语.例:Thatweshallbelateiscertain.--It’scertainthatweshallbelate.1.Thattheearthisroundisknowntoall.--2.Thatyoumissedthechanceisapity.--Itisapitythatyoumissedthechance.It’sknowntoallthattheearthisround.A.

It+be+形容词(obvious,

true,

natural,

surprising,

good,

wonderful,

funny,

possible,

likely,

certain,

probable,

etc.)+that从句。如：

It

is

certain

that

she

will

do

well

in

her

exam.

B.

It+be+名词词组(no

wonder,

an

honour,

a

good

thing,

a

pity,

no

surprise,

etc.)+that从句。如：

It’s

a

pity

that

we

can’t

go.

2.用it作形式主语的结构C.

It+be+过去分词(said,

reported,

thought,

expected,

decided,

announced,

arranged,

etc.)+that从句。如：

It

is

said

that

Mr.

Green

has

arrived

in

Beijing.

D.

It+seem,

happen等不及物动词及短语+that从句。如：

It

happened

that

I

was

out

that

day.

E.

It+doesn’t

matter

(makes

no

difference,

etc.)+连接代词或连接副词引起的主语从句。如：

It

doesn’t

matter

whether

she

will

come

or

not.

注意：Whatyouleftareonlyseveraloldbooks.Whatyousaidisofgreatimportance.Whether

he’ll

come

here

isnot

clear.

1.“if〞不能引导主语从句，应有“whether〞引导。3.主语从句的“that〞一般不能省。4.“what〞引导主语从句时，谓语动词：1〕常与其后的名词作表语一致2〕根据句子的语境而定。4.主语从句需注意的问题2.主语从句中用陈述语序1.Whereshallwespendtheholidayisn’tdecided.2.Youhavemadeamistakeisafact.3.Thatiscertainthatwecanwin.4.Nomatterwholeavestheroomlastoughttoturnoffthelights.5.Ifthepolicemenwillcomeisnotcertain.weshallThatyouhaveItisWhoeverwhether改错练习1.Ireadaboutitinsomebookorother,doesitmatter_______itwas?〔01北京春季) A．where B．what C．howD．which2.AfterYangLiweisucceededincirclingtheearth,_______ourastronautsdesiretodoiswalkinspace.〔04上海〕A.whereB.what C.that D.howFashiondiffersfromcountrytocountrymayreflecttheculturaldifferencesfromoneaspect.(00上海〕WhatB.ThatC.ThisD.Which〔D〕(B)(B〕___hemadeanimportantspeechatthemeetingwastrue.

A.ThatB.WhyC.WhatD.How2.___we’llgocampingtomorrowdependsontheweather.AIfBWhetherCThatDWhere3.___isknowntousallisthatAmericaisadevelopedcountry____theFirstWorld.Which;belongtob.As,belongedtoc.What;belongingtod.It;belongingto4.It’sknowntousall___aformofenergy.A.waterisB.thatwaterisC.iswaterD.thatwaterto5.Itworriedhe