if条件句讲解及练习.docx

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if条件句讲解及练习.docx

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,Iwouldnotletoutthesecret.

  如果我是你的话,我不会泄露这个秘密的。

  IfIknewhisnewaddress,Iwouldtellyou.

  如果我知道他的新地址,我会告诉你的。

  Ifhestudiedharder,hewouldpasstheexam.

  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,youwouldn’thavebeenlateforthemeeting.

  如果你听了我的建议,你开会就不会迟到了。

  Ifshewereto/shouldcome,Iwouldtellherthesecret.

  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等词的虚拟条件句中,可以省略if,将were,had或者should这些助动词放在句首。

如:

  WereIyou,Iwouldnotletoutthesecret.

  Hadwemadefullerpreparation,weshouldhavewonthegame.

  Hadyoutakenmyadvice,youwouldn’thavebeenlateforthemeeting.

  Shouldshecome,Iwouldtellherthesecret.

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

  2.Maryisilltoday.Ifshe_____,she_____absentfromschool.

A.werenotill;wouldn’tbe      B.hadbeenill;wouldn’thavebeen

C.hadbeenill;shouldhavebeen    D.hadn’tbeenill;couldbe

  3.Heactedasifhe_____everythingintheworld.

  A.knew   B.knows   

C.hasknown  D.won'tknow

  4.Ifyouhadenoughmoney,what_____?

  A.willyoubuy        

B.wouldyoubuy

  C.wouldyouhavebought    

D.willyouhavebought

  5.IfMr.Young_____withjustice,he_____suchawrongthing.

  A.weretreated;wouldn’tdo

  B.hadbeentreated;wouldn’thavedone

  C.weretreated;wouldn’thavedone

  D.hadbeentreated;wouldn’tdo

  6.What_____ifthere_____nolightduringtheday?

  A.willhappen;was    

B.wouldhappen;is

  C.happens;were     

D.wouldhappen;were

  7.Thespokesmanactedthatwayasifhe_____anythingabouttheaccidentbutactuallyhedid.

  A.doesn’thear   

B.didn’thear   

C.haven’theard   

D.hadn’theard

  8.Ifit_____notforthefactthatyou_____illnow,Iwouldsurelypunishyou.

A.is;are   B.were;were   C.were;are   D.was;were

  9.ManyChinesemoviestarsnowhavegivenuptheirChinesenationality.IfIwerethem,I_____that.

A.shouldn’tdo 

B.didn’tdo   

C.hadn’tdone   

D.won’tdo

  10.Iwanttogetbackby5o’clockif_____.

A.likely   B.can   

C.possible   D.probable

  11.Itseemsasifit_____alreadysummernowbutitisonlyFebruary.

A.is  B.was 

C.were D.hadbeen

  12.IfHenryhadnotpulledhiscaplowoverhisbrow,he_____bythepolice.

  A.mightberecognized     

B.mighthavebeenrecognized

  C.wouldhaverecognized    

D.wastohavebeenrecognized

  13.Thereisaringatthedoor.That_____bethepostman,Isuppose.

  A.will     B.would

  C.isgoingto  D.wasgoingto

  14.Lookatthedarkclouds—there_____beastorm.

  A.will    B.musthavebeen

  C.isgoingto D.would

  15.—Whyareyoutakingthepicturesdown?

    —I_____thewall.

 A.paint   

B.havejustpainted

C.amgoingtopaint     

D.willhavepainted

  16.—CanIstayathometomorrow?

    —Yes,youcanifit_____.

  A.willsnow     

B.isgoingtosnow

  C.snows       

D.snowed

  17.Idon’tknowifhe_____thisafternoon.Butifhe_____,Iwilltellyou.

  A.willcome;willdo;    

B.comes;willdo

  C.willcome;does      

D.comes;does

  18.—IthoughtIaskedyoutofixtheradio.

    —Oh,I’msorry.I_____itrightaway.

  A.amtodo    B.willdo

  C.wasabouttodo     

D.amgoingtodo

  19.TheWTOcan’tliveuptoitsname_____itdoesnotincludeacountrythatishometoonefifthofmankind.

A.aslongas   B.whether   

C.if   D.eventhough

  20.Askhimtoringmeupifyou_____him.

A.see   B.saw   

C.wouldsee   D.willsee

  21.It’ssolate.Idon’tthinkhe______come.

  A.would   B.should   

C.isgoingto   D.shall

  22.Ifpeople_____pollutingtheair,animalsandplantswilldiesoon.

  A.don’tstop      

B.didn’tstop

 C.shallnotstop     

D.haven’tstopped

  23.Ifyou_____aninterestingdayout,______theScienceMuseum.

  A.want;visiting    

B.want;visit

  C.wantto;visit    

D.wanting;visit

  24.Ifthepurewaterisheatedto100centigradedegrees,it______boil.

A.isgoingto   B.will   

C.would   D.isto

  25.Isadictionaryavailable,_____so,where?

  A.if   B.ifis   

C.andif   D.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—10DDCAC11—15CBACC16—20CCBCA

  21—25CABBC

  26.Ifmybrotherwerehere,everythingwouldbeallright.

  27.Ifitshouldrain,thecropswouldbesaved.

  28.Ifyouhadcomeearlieryesterday,youwould(might)havemethim.

  29.HetreatsmeasifIwerehisson.

  30.Theyaretalkingasiftheyhadbeenfriendsformanyyears.

  31.Idon’tthinkitwillrainthisafternoon.

  32.Willyoulendmethecarnextweek?

  33.Iwon’ttellanybodywhathappened.

  34.Wearenotgoingtostaytherelong.

  35.Ifeelterrible.IthinkI’mgoingtobesick.

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