英语中的虚拟语气有4种，一种是条件句中的虚拟语气，一种是含蓄条件句中的虚拟语气，一种是名词性从句中的虚拟语气，还有一种是状语从句中的虚拟语气。其中虚拟时态的运用很大程度上和其所处的句型有关。虚拟语气在三级考试中是一个比较重要的语法。下面我们也分四部分来看一下三级考试中虚拟语气的运用。

　　(一)条件句中的虚拟语气

　　在分析虚拟语气的考查特点也应对策略之前，请同学们做以下试题：

　　(1)If a better material______，the strength of the part would have been increased.(1992.6)

　　A.had been used

　　B.had been using

　　C.being used

　　D.using

　　(2)If you______that movie last night， you wouldn't be so sleepy.(1993.6)

　　A.hadn't watched

　　B.haven't watched

　　C.wouldn't have watched

　　D.didn't watch

　　(3)______you were busy， I wouldn't have bothered you with my question.(1996.6)

　　A.If I realized

　　B.Had I realized

　　C.Did I realize that

　　D.As I realized

　　(4)______，I should ask them some questions.(1997.6)

　　A.Should they come to us

　　B.If they come to us

　　C.Were they come to us

　　D.Had they come to us

　　(5)Do you think there would be less conflict in the world if all people ______the same language.

　　A.spoke

　　B.speak

　　C.had spoken

　　D.will speak

　　(6)Had the weather been good， the children ______out for a work.(2001.6)

　　A.had gone

　　B.could have gone

　　C.would go

　　D.went

　　(7)______the advice of his friends， he would not have suffered such a heavy loss in his business.(2004.4)

　　A.If he took

　　B.If he should take

　　C.Were he to take

　　D.Had he taken

　　「答案」AABAA BD

　「评析」外语

　　1、对于虚拟条件句中时态的运用，首先应该熟记主从句动词与不同事实相反时的时态运用规则。解题时根据句子所表达的时间概念确定与什么事实相反，然后采用相应的时态。

　　① 如果与过去事实相反，从句中用过去完成时，主句中用would/should/could/might + have done的形式，如(1)、(3)、(6)和(7)。

　　(1)If a better material______，the strength of the part would have been increased.(1992.6)

　　A.had been used

　　B.had been using

　　C.being used

　　D.using

　　答案：A

　　(3)______ you were busy， I wouldn't have bothered you with my question.(1996.6)

　　A.If I realized

　　B.Had I realized

　　C.Did I realize that

　　D.As I realized

　　答案：B

　　注意：虚拟条件句的从句部分如果含有were，should，或had，可将if省略，再把were，should或had 移到从句句首，实行倒装。

　　(6)Had the weather been good，the children ______ out for a work.(2001.6)

　　A.had gone

　　B.could have gone

　　C.would go

　　D.went

　　答案：B

　　(7)______ the advice of his friends， he would not have suffered such a heavy loss in his business.(2004.4)

　　A.If he took

　　B.If he should take

　　C.Were he to take

　　D.Had he taken

　　答案：D

　　② 如果与现在事实相反，从句中用一般过去时，主句中用would/could/might/should + 原形动词，如(5)，表示与正在进行的事实相反用would/might/could/should + be doing的结构。

　　(5)Do you think there would be less conflict in the world if all people ______the same language?