当前位置：首页> if条件句讲解及练习

if条件句讲解及练习

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if条件句讲解及练习从句主句与现过去式would/should/could/might+在事（be用do实相were）反
与过过去完成would/should/could/might去事式+havedone实相反
与将shouldwould/should/could/might来事(wereto+do实相+动词原反形
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’tbeB.hadbeenill;wouldn’thavebeen
C.hadbeenill;shouldhavebeenD.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
B.hadbeentreated;wouldn’thave

done
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’thearC.haven’theardD.hadn’theard