if条件句讲解及练习.docx

if条件句讲解及练习.docx

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if条件句讲解及练习

if条件句讲解及练习

从句

主句

与现在事实相反

过去式（be用were）

would/should/could/might+do

与过去事实相反

过去完成式

would/should/could/might+havedone

与将来事实相反

should（wereto）+动词原形

would/should/could/might+do

IfIwereyou,Iwouldnotletoutthe

secret.

如果我是你的话，我不会泄露这个秘密的。

IfIknewhisnewaddress,Iwould

tellyou.

如果我知道他的新地址，我会告诉你的。

Ifhestudiedharder,hewouldpass

theexam.

如果他学习再努力点的话，他会通过考试的。

Ifwehadmadefullerpreparation,

weshouldhavewonthegame.

如果我们做了更充分的准备的话，我们肯定就赢了这场比赛。

Ifyouhadtakenmyadvice,you

wouldn'thavebeenlateforthemeeting.

如果你听了我的建议，你开会就不会迟到了。

Ifshewereto/shouldcome,Iwould

tellherthesecret.

万一她来的话，我会告诉她这个秘密。

（2）省略if的虚拟条件句

在含有were,had,或者should等were,

将if,可以省略词的虚拟条件句中，

had或者should这些助动词放在句首。

如：

WereIyou,Iwouldnotletoutthe

secret.

Hadwemadefullerpreparation,

weshouldhavewonthegame.

Hadyoutakenmyadvice,you

wouldn'thavebeenlateforthemeeting.

Shouldshecome,Iwouldtellher

thesecret.

高一语法练习（四）预测、if条件句及虚拟语气

一、单项选择

1.IfI_____wherehelived,I_____

anotetohim.

A.know,wouldhavesent

B.hadknown,wouldhavesent

C.know,wouldsend

D.knew,wouldhavesent

_____,

sheIftoday.illisMary2.

she_____absentfromschool.

A.werenotill;wouldn'tbe

B.hadbeenill;wouldn'thavebeen

C.hadbeenill;shouldhavebeen

D.hadn'tbeenill;couldbe

3.Heactedasifhe_____

everythingintheworld.

A.knewB.knows

C.hasknownD.won'tknow

4.Ifyouhadenoughmoney,what

_____?

A.willyoubuy

B.wouldyoubuy

C.wouldyouhavebought

D.willyouhavebought

5.IfMr.Young_____withjustice,

he_____suchawrongthing.

A.weretreated;wouldn'tdo

have

B.hadbeentreated;wouldn't

done

C.weretreated;wouldn'thave

done

D.hadbeentreated;wouldn'tdo

6.What_____ifthere_____no

lightduringtheday?

A.willhappen;was

B.wouldhappen;is

C.happens;were

D.wouldhappen;were

7.Thespokesmanactedthatwayas

ifhe_____anythingabouttheaccident

butactuallyhedid.

A.doesn'thear

B.didn'thear

C.haven'theard

D.hadn'theard

8.Ifit_____notforthefactthat

you_____illnow,Iwouldsurelypunish

you.

A.is;areB.were;were

C.were;areD.was;were

9.ManyChinesemoviestarsnow

havegivenuptheirChinesenationality.

IfIwerethem,I_____that.

A.shouldn'tdo

B.didn'tdo

C.hadn'tdone

D.won'tdo

10.Iwanttogetbackby5o'clock

if_____.

A.likelyB.can

C.possibleD.probable

11.Itseemsasifit_____already

summernowbutitisonlyFebruary.

A.isB.was

C.wereD.hadbeen

12.IfHenryhadnotpulledhiscap

lowoverhisbrow,he_____bythe

police.

A.mightberecognized

B.mighthavebeenrecognized

C.wouldhaverecognized

D.wastohavebeenrecognized

13.Thereisaringatthedoor.That

_____bethepostman,Isuppose.

A.willB.would

C.isgoingtoD.wasgoingto

14.Lookatthedarkclouds—there

_____beastorm.

A.willB.musthavebeen

C.isgoingtoD.would

15.—Whyareyoutakingthe

picturesdown?

—I_____thewall.

A.paint

B.havejustpainted

C.amgoingtopaint

D.willhavepainted

16.—CanIstayathome

tomorrow?

—Yes,youcanifit_____.

A.willsnow

B.isgoingtosnow

C.snows

D.snowed

17.Idon'tknowifhe_____this

afternoon.Butifhe_____,Iwilltellyou.

A.willcome;willdo;

B.comes;willdo

C.willcome;does

D.comes;does

18.—IthoughtIaskedyoutofix

theradio.

it

_____Isorry.I'm—Oh,

rightaway.

A.amtodoB.willdo

C.wasabouttodo

D.amgoingtodo

19.TheWTOcan'tliveuptoits

name_____itdoesnotincludea

countrythatishometoonefifthof

mankind.

A.aslongasB.whether

C.ifD.eventhough

20.Askhimtoringmeupifyou

_____him.

A.seeB.saw

C.wouldseeD.willsee

21.It'ssolate.Idon'tthinkhe

______come.

A.wouldB.should

C.isgoingtoD.shall

22.Ifpeople_____pollutingtheair,

animalsandplantswilldiesoon.

A.don'tstop

B.didn'tstop

C.shallnotstop

D.haven'tstopped

23.Ifyou_____aninterestingday

out,______theScienceMuseum.

A.want;visiting

B.want;visit

C.wantto;visit

D.wanting;visit

24.Ifthepurewaterisheatedto

100centigradedegrees,it______boil.

A.isgoingtoB.will

C.wouldD.isto

25.Isadictionaryavailable,_____

so,where?

B.ifisA.if

C.andifD.andifis

二、翻译句子

26.要是我哥哥在这儿，一切都没问题了。

27.如果下雨，庄稼就得救了。

28.如果你昨天早点来，你就碰见他了。

29.他那样对待我，好像我是他儿子似的。

30.他们谈话的样子好像是多年的朋友一样。

31.我想今天下午不会下雨。

32.你下星期把车借给我行吗？

33.发生的事我谁也不告诉。

34.我们不准备在那里多呆。

35.我难受极了，我想我要生病了。

Keys:

1—5BAABB6—10DDCAC

11—15CBACC16—20CCBCA

25CABBC

—21

26.Ifmybrotherwerehere,

everythingwouldbeallright.

27.Ifitshouldrain,thecrops

wouldbesaved.

28.Ifyouhadcomeearlier

yesterday,youwould（might）havemet

him.

29.HetreatsmeasifIwerehisson.

30.Theyaretalkingasiftheyhad

beenfriendsformanyyears.

31.Idon'tthinkitwillrainthis

afternoon.

32.Willyoulendmethecarnext

week?

33.Iwon'ttellanybodywhat

happened.

34.Wearenotgoingtostaythere

long.

35.Ifeelterrible.IthinkI'mgoing

tobesick.