概要：12. If I _________ that crowded bus yesterday morning, I _________ my purse with a lot of money in it.A. didn’t take, couldn’t lose B. hadn’t taken, wouldn’t have lostC. hadn’t taken, couldn’t lose D. didn’t take, can’t have lost语法专练 (One possible version)动词变形1. belonged; wouldn’t sell 2. had kept; would have known 3. would go 4. Were 5. Had; would have gone完成句子1. would; do; were 2. had driven; couldn’t hav
高考英语语法复习精讲与练习（七）虚拟语气,标签：高中英语语法大全,http://www.85jc.com
语法专练 (One possible version)
动词变形
1. belonged; wouldn’t sell 2. had kept; would have known 3. would go 4. Were 5. Had; would have gone
完成句子
1. would; do; were 2. had driven; couldn’t have happened 3. were; couldn’t drive 4. were to; would go 5. were; would 6. were; would 7. would be; had 8. had picked; would have returned 9. should; would 10. hadn’t smoked; wouldn’t have broken
语法小测
测一测 1-5 ACBDC 6-10 BACDC 11-12 DB
虚拟语气（二）
——虚拟条件句的一些特殊用法
【考点导航】
1. —My cat’s really fat. （2007浙江）
—You ______ have given her so much food.
A. wouldn’t B .couldn’t C. shouldn’t D. mustn’t
2．—How’s your tour around the North Lake? Is it beautiful? （2007全国卷I）
—It _____ be, but it is now heavily polluted.
A. will B. would C. should D. must
3. I told your friend how to get to the hotel, but perhaps I _____ have driven her there. （2007陕西）
A. could B. must C. might D. should
【答案与解析】
1．C。shouldn’t have done表示“本来不应该做某事而实际做了”。
2．C。根据句意，“本来这个湖应该是很漂亮的，但是现在被严重污染了”可知选C。should 在这里表示“本来应该……，暗含着实际上不……”之意。
3．D。should have done表示“本应该做某事而实际上未做”，本句意为：“我告诉你朋友该怎么到达旅馆了，但是也许我应该开车把她送到那儿去”。
【重点归纳】
1. 错综时间条件句：
有时在非真实条件句中，主句谓语动词所表示的动作和条件从句中谓语动词所表示的动作并不同时发生，这时主句和从句的谓语动词要根据各自所指的不同时间选用适当的虚拟语气形式。如：
Had I taken my umbrella with me when I came out this morning, I should not be wet now.
如果我今天早上出来的时候带着伞的话，现在就不会淋湿了。（从句说的是过去的事情，而主句说的是现在的事情）
If you had followed the doctor’s advice, you would be all right now.
如果你（那时）听从我的建议的话，现在就不会有事了。（从句说的是过去的事情，而主句说的是现在的事情）
If I hadn’t finished my composition by now, I would be working on it tomorrow.
如果到现在为止我还没有完成作文的话，我明天还要接着写。（从句说的是现在的事情，而主句说的是将来的事情）
2．含蓄虚拟条件句：
有时一个假设的情况并不用条件从句表示，而用其它方式来表示，这样的句子叫含蓄条件句。主要有以下几种情况。
1) 用with, without，but for等介词短语来替代条件从句, 它们都可以转换成由if引导的虚拟条件句。如：
We might have died without your help. =We might have died if you hadn’t helped us.
如果（那时）没有你们的帮助，我们可能已经死了。
Without the sun, nothing would grow. = If there was no the sun, nothing would grow.
没有太阳，万物都不能生长。
2) 用or, otherwise, but that, suppose/ supposing (that), provided / providing (that) 等引导的虚拟语气。如：
You didn’t come yesterday, or you would have seen him.
你昨天没有来，否则的话，你就已经看到他了。
I was very busy last week, otherwise I would have come to see you.
我上周很忙，否则的话，我就来看你了。
Supposing I was still a little child, I would study hard from now on.
假如我还是一个小孩子的话，我将从现在开始努力学习。
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