虚拟语气知多少 (人教版高三英语下册教学论文)
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虚拟语气知多少
虚拟语气是一种动词形式，表示说话人的一种愿望，假设，怀疑，猜测， 建议等含义，虚拟语气所表示的含义不是客观存在的事实。 它的用法在表情达意的过程中发挥着重要的作用。近几年高考在单项选择这一题型中出现不多，但在完形填空和短文改错中仍然大量出现。例如，2003年高考完形填空第38题考察的就是在篇章语境中的虚拟语气在宾语从句中的用法。虚拟语气的实际用法主要包括以下几种：
1、 虚拟语气用在简单句中，表示“强烈的祝愿或命令的语气”。 常用“May+主语+动词原形”或“主语+动词原形”。例如：
May the friendship between us last long. 祝愿我们的友情天长地久。
You go out！ 你出去！
2、 虚拟语气在宾语从句中的用法。由及物动词 wish引导的宾语从句常表示说话人的一种强烈的却暂时无法实现的愿望。
How I wish she would be on my side!(But in fact it’s quite impossible.我多么希望她能站在我一边啊！
How I wish I could help him! 我多么希望我能帮助他啊！
How I wish I had watched the close NBA game last night.
另外，在表示“命令”、“坚持”、“要求”或“建议”等意义的及物动词（order, command, demand, require, insist, suggest,propose,advise）之后的宾语从句中的谓语动词同样常使用虚拟语气，表示说话人的要求，其结构为：主语+should+动词原形，其中的should常可省略。例如：
The head teacher demanded that we (should ) finish the task in time today.
但是，当insist表示“坚持认为”的意思时，或suggest表示“暗示”或“表明”之意时，宾语从句仍用陈述语气。试比较：
My parents insisted that I ( should) enter a key university.
My parents insisted that they were right.
The soldier’s pale face suggested that he was happy to have given his life to his motherland.
The monitor suggested that we (should ) hold a class meeting tomorrow afternoon to discuss the problem.
3、 虚拟语气用在主语从句中。
在句型 "It is important (necessary, strange, natural, a pity, suggested, advised, demanded, commanded, ordered ) that .... " 中，that 后面的从句中的谓语动词常用：“ should + 动词原形 ”。例如：
It's necessary that we should have a walk now. 我们有必要出去散散步。
It's natural that she should do so. 她这样做是很自然的。
It's important that we should take good care of the patient. 重要的是我们要照顾好病人。
同理，在表示“命令”、“坚持”、“要求”或“建议”等意义的名词前后的主语从句、表语从句和同位语从句中的谓语动词同样用虚拟语气，既：“主语+(should)+ 动词原形”的句型。例如：
His suggestion /advice is that we should start early tomorrow morning.
3、虚拟语气用在状语从句中。
虚拟语气最多地用在表示条件的状语从句和表示结果的主句中。在表示与事实相反的虚拟语气时，动词有三种虚拟形式，即虚拟条件现在式，过去式和将来式。
1) 虚拟条件现在式：表示与现在事实相反的假设及根本不可能的假设或结果：
条件状语从句 结果主句
If 主语+ 动词过去式（be 用were） 主语+ would/could/should/might + 动词原形
2)虚拟条件过去式：表示与过去事实相反的假设或结果：
条件状语从句 结果主句
If+主语+ had + 过去分词 主语+should/ would/could/might+ have+ 过去分词。
3）虚拟条件将来式：表示与将来事实相反的假设或结果：
条件状语从句 结果主句
If+ should /were to +动词原形 主语+ should/ would/could/might+动词原形
If I were you, I should get it. 如果我是你，我就买了它。
If I had time now, I would study French. 如果我现在有时间，我会学习法语的。
If you had got up earlier, you could have caught the train. 如果你早一点起床，就会赶上火车的。
If it were to be fine tomorrow, I would go shopping with my friends. 如果明天天气好，我将和朋友们一起去买东西。
4、有关虚拟语气的几个附加问题：
1) 有时if引导的状语从句可以省略 if，而把条件状语从句中的动词 were, had 或 should 移到主语前面，使用部分倒装语序。 例如：
Were she younger, she would do it . 如果她年青点， 她就会干这件事了。
Had he known her address, he would had gone to visit her. 如果他知道她的地址，他会去看她的。
Should it snow tomorrow, it would be exciting.要是明天能下雪的话，那就太棒了。
2) 有时表示虚拟语气的条件从句或者主句都可以省略，而只剩下一个主句或者一个条件从句。 If I had time. 我要有时间该多好啊。
She should have come to the party. 她应该来参加聚会。
3) 虚拟语气中，条件从句的动词动作可以和主句的动词动作时态不一致，这种句式就被称作为“混合虚拟条件句”。 If+ had +主语+过去分词， 主语+ should/ would/could/might+动词原形
If they had studied hard, they could do it easily now. 如果他们以前努力学习的话，现在干的就会容易些。
If he had not taken my advice, he wouldn't do it much better like this. 如果他不听取我的建议，他就不会干得这样好。
4）特殊句型：
It’s (high) time (that) sb. should do/过去式
Sb. would rather (that) sb +过去式
5）含蓄虚拟条件句
含蓄条件句是指句中没有明显的虚拟条件句，而是利用其他手段来暗示存在虚拟条件。但是这类隐含式虚拟条件句往往都可以转化为if引导的条件句。常来表示含蓄虚拟条件的手段有： （1）介词或介词短语，如but for, but that, without, in case of, under more favorable condition等。
______________the leadership of the party, we could not be living a happy today.=If there hadn’t been the leadership of the party, we could not be living a happy today.
A. In spite of B. But for C. Because of D. As for
But that she was afraid, she would have said no.
6)虚拟语气用于as if（though）引起的方式状语从句和表语从句中，其动词形式与wish宾语从句的形式相同。例如：She often laughs spontaneously, and her good humor breaks out as brightly as if it were a part of the sunshine above.她常常发出发自内心的微笑，而且她那美好的情绪像天上一道明亮的阳光一样，常常流露出来。
They talked as if they had been friends for years.他们交谈着，就好像他们是我年的老朋友一样。
She looks as if she would cry.她看起来好像要哭了。
由于虚拟语气结构复杂、用法众多，因此，尤其需要大家分清虚拟语气的结构，在语言实践中灵活运用！
配套强化训练：虚拟语气
1．Were it not for the snowy weather, we all right.
A. would be B. would have been C. were D. may be
2. more careful, his ship would not have sunk.
A. If the captain were B. Had the captain been
C. Should the captain be D. If the captain would have been
3. If he me tomorrow, I would let him know.
A. should call B. should not have been able
C. were not able D. are not able
4. If you asked your father， you permission .
A. may get B. might get C. should have called D. maybe get
5. today, he would get there by Friday.
A. Would he leave B. Was he leaving C. Were he to leave D. If he leaves
6. ______I you, I would go with him to the party.
A. Was B. Had been C. Will be D. Were
7.The millions of calculations involved, had they been done by hand, ______all practical value by the time they were finished.
A. could lose B. would have lost C. might lose D. ought to have lost
8. Had Paul received six more votes in the last election, he our chairman now.
A. must have been B. would have been C. were D. would be
9. If you Jerry Brown until recently, you’d think the photograph on the right was strange.
A. shouldn’t contact B. didn’t contact C. weren’t to contact D. hadn’t contacted
10. he English examination, I would have gone to the concert last Sunday
A. In spite of B. But for C. Because of D. As for
11. Look at the terrible situation I am in! If only I your advice
A. follow B. would follow C. had followed D. have followed
12. Had Paul received six more votes in the last election, he our chairman now.
A. must have been B. would have been C. were D. hadn’t contacted
13. If the horse won today, it thirty races in five years.
A. would have won B. won C. must have won D. did have won
14. There is a real possibility that these animals could be frightened, _______a sudden loud noise.
A. being there B. should there be C. there was D. there having been
15. How I wish that I ______ with you last night!
A. went B. have gone C. could go D. could have gone
16. I wish you to have a pleasant trip to Beijing this month, _________?
A. can I B. may I C. don’t I D. do I
17. I would have gone to visit him in the hospital had it been at all possible, but I ______
fully occupied the whole of last week.
A. were B. had been C. have been D. was
18. I apologize if I you, but I assure you it was unintentional.
A. offend B. had offended C. should have offended D. might have offended
19. If you hadn’t taken such a long time to get dressed, we’d there by now.
A. be B. circles C. is circling D. be circling
20. The sun rises in the east and sets in the west, so it seems as if the sun _______round the earth.
A. were circling B. circles C. is circling D. be circling
21. I wish that I ______ with you last night.
A. went B. have gone C. could go D. could have gone
22. I wish I with her.
A. would be B. am C. was D. were
23. I wish that I the concert last night.
A. could B. have attended C. could have attended D. attended
24. The picture exhibition bored me to death. I wish I to it.
A. had not gone B. have not gone C. did not go D. can not have gone
25. “I wish you me to put these things away,” he said.
A. will help B. help C. are helping D. would help
26. If the Watergate Incident Nixon would not have resigned from the presidency.
A. did not occur B. had not occurred C. was not occurring D. be circling
27. I hadn’t expected ___________James to apologize but I had hoped .
A. him calling me B. that he would call me C. him to call me D. that he call me
28. George would certainly have attended the proceedings .
A. if he didn’t get a flat tire B. if the flat tire hadn’t happened
C. had he not had a flat tire D. had the tire not flattened itself
29. The teacher suggested that her students experiences with ESP.
A. write a composition on their B. to write composition about the
C. wrote some compositions of his or her D. had written any compositions for his
30. He speaks Chinese as fluently as if he ______a Chinese.
A. were B. had been C. is D. has been
31. As usual, he put on a show as though his trip a great success.
A. had been B. has been C. were D. was
32. Looking round the town, he felt as though he away for ages.
A. has been B. was C. is D. had been
33. John is so strongly built that he looks as if he as elephant.
A. lifts B. is lifting C. lifted D. could lift
34. He described the town as if he it himself.
A. had seen B. has seen C. saw D. sees
35. At that thought he shook himself, as though he from an evil dream.
A. woke B. wakes C. would wake D. had woke
答案与详解
1．A．条件句表示与现在事实相反的虚拟。
2．B．条件句表示与过去事实的虚拟。
3．A．条件句表示与未来事实的虚拟。
4．B．条件句表示与未来事实的相反。
5．C．条件句表示与现在事实的虚拟。
6．D．条件句表示与现在事实的虚拟。
7．B．这个句子中含有一个省略if，把助动词提前到主语they之前的虚拟条件句，该条件句表示对过去情况的假设，而主句中by the time they were finished 表明主句也应该是对过去发生的情况的假设，因而应该选（B）would have lost为正确答案。
8．（D）这道题目是一个混合虚拟语气的句子。条件句省略了if，把助词had提前到主语前面，表示对过去情况的假设，而主句中now表明了对现在情况的假设，所以应选would(should, could, might)+动词原形这种表达形式。四个选项中只有（D）是正确表达形式，故为正确答案。
9．（D）until recently，因此（D）是正确答案，而主句是隐含的对现在情况的假设，该句是一个混合虚拟条件句。
10．（B）假设的情况有时不是用一个条件句表示，而是隐含在一个由介词如but for、but that、without, 由连词but、副词otherwise 、比较级、形容词、独立主格等表示的上下文中。本句主句表示对过去情况的假设，但事实上由于英语考试而没有去成，即若不是因为英语考试，我本可以去听音乐会，所以应选But for为正确答案。
11．（C）题目中的第一句话表示的是现在真实的情况，而第二句话中所要表达的是应该做但事实上没有做的事，这种情况导致第一句话中真实情况的发生，故If only条件句假设的是过去一种情况，因此应该用had +过去分词，所以正确答案是（C）。
12．D．注意主句now表示现在的时间状语，所以主句是对现在虚拟，从句是对过去虚拟13．A．从句对过去的虚拟。 14．B．从句表示虚拟，而主句是事实。 15.D.对过去的虚拟。
16．。
17．（D）本道题目的前半句话是对过去情况的一种假设，但事实上并没有发生，而事实上没有发生的真实原因是句子的后半部分由but引导的转折句所表述的真实。因而but所引导的句子中应该用表示志过去事实相符合的表陈述的时态，即一般过去时。
18．（B）此题要求在if从句中选择适当的动词形式，以主句中的动词apologize(抱歉)来看，if从句中表达的内容应该是过去做的事，因此可以排除（A），因为（A）是现在时。（C）中should+have+过去分词结构表示本来应该做却没有做的事，在此不合题意。（D）选项中的might+have+过去分词表示对过去发生的事情很不肯定的猜测，它表达的内容还不能成为事实，所以藉此道歉真是不知从何说起，因此此处也不合题意。（B）had offended表示当时已经发生了的动作。这是复杂条件句：apologize 是现在，而条件句是表示对过去假设的条件句。
19．（A）该句也是一个复杂条件句（或称作混合虚拟条件句）。条件句表示对过去情况的假设，而主句表示对现在情况的假设，但事实上却与此相反，所以正确答案应该是（A）。
20．（A）as if引导的从句要求用虚拟语气，表示同时或将来的情况，动词要用过去式（be动词用were）或would(could等)+动词原形，本句话中指的是当时的情况，所以要用过去式，故（A）是正确答案。
21．D． 22．D． 23．C． 24．A． 25．D．
26．（B）had not occurred表示对过去的虚拟，条件句中要用过去完成式，主句中要用should(would, could, might)+动词原形的过去分词。
27．（B）had hoped是常见的要求其后的宾语从句用虚拟语气的句型,虚拟语气would+动词原形。
28．（C）表示对过去情况的假设，主句动词形式为would(should, could, might)+have+过去分词，条件句为过去完成式，if可以省略，但要把had提前主语前面。（B），（D）的表达不符合英语表达习惯，所以（C）是正确答案。
29．（A）suggest后面的从句要用虚拟语气形式，其形式为should（可以省略）+动词原形。
30．A．表示与现在相反的虚拟。
31．A．as though引导的与过去相反的虚拟。
32．D．felt是过去式，所以该句是由as though引导的与过去相反的虚拟。
33．D．as if引导的与现在事实相反的虚拟。
34．A．as if引导的与过去相反的虚拟。
35．C．

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