1
虚拟语气在as if/as
though引导的方式状语
从句中 1.表示与现在事实相反或对现在情况有怀疑，谓语动词用过去式。 He treats the boy as if he were his own son. 2.表示与过去事实相反，谓语动词用过去完成时。 He spoke as if he had known about it. 3．表示与将来事实相反，(表示将来的可能性不大),用would
(might, could)+动词原形
He acts as if he could win in the game .
注意：1.在as if/as though 句中，如果有可能成为事实，用陈述
语气。
例：He looks as if he going to be ill.
2.as though或as if引导的状语从句，从句主语和主句主
语相同时，从句中可省略主语和部分谓语。
虚拟语气用在lest，for
fear that，so that及in
order that引导的目的状
语从句中表示“以防，
以免”等意思 谓语动词多用should/could/might+动词原型构成 For fear that it may rain tomorrow, we should bring an umbrella.
由“providing（that）
/provided（that）/on
condition that/suppose
（that）/supposing
（that）”引导的条件从
句 根据情况，1.可以用虚拟语气。 例：suppose/supposing that it rained,we shouldn’t go out. 2.也可以用陈述语气。 例：They are willing to surrender provided they are
given free pardon..
2
“In case”引导的从句
中即可用陈述句，也可
以用虚拟语气 例：1.The game will be put off in case it (should) snow. 2.The game will be put off in case it snows.
名词性从句中的虚拟语气
一：宾语从句中的虚
拟语气
1.在动词wish/hope
后的宾语从句中的虚
拟语气,表示一种不
可能实现的愿望。 对现在情况的虚拟：从句谓语动词用过去式或过去进行式。 I wish (that) I were a bird. 对过去情况的虚拟：从句谓语动词用过去完成时，或would，could，might+现在完成时。 I wish (that) I had seen the film last night.
对将来情况的虚拟：从句谓语“would/should/could/might+动词原
形”。
I wish (that) I would\could go.
在表示建议，命令，
要求，忠告，等动词
的后面的宾语从句中
的虚拟语气 均以“should+动词原型”表示这种语气，“should”常被省略。 We suggested that the meeting (should) be put off. They insisted that the boy (should) go with them. 常用的此类动词有： 表示“提议，劝告，建议”的：propose,suggest,recommend,advise. 表示“要求”的：ask,desire, request,demand,require,beg 表示“同意，坚持”的：insist 表示“决定，命令”的：decide,order
注意：suggest,insist不表示建议或坚持要某人做某事时，即它们用
于其本意暗示，表明，坚持认为时，宾语从句用陈述语气。
The smile on his face suggested(暗示） that he was satisfied with our
work.
The man insisted 【坚持认为】that he had never stolen the money.
在expect，believe，
think，suspect等动词
的否定或疑问形式后
的宾语从句中的虚拟
语气 经常用“should+动词原型（或完成形式），表示惊奇，怀疑，不满等情绪。 I cannot believe that you should think so.
Would rather，had 谓语动词用过去式表示与现在或将来相反
rather，后的宾语从句 I would rather you told me the truth.
中的虚拟语气
3
用过去完成式表示与过去事实相反。表示“宁愿做什么”或“对
过去做的事的懊悔”。
I would rather you had gone there last Sunday.
注意：1.若某人愿自己做某事，would rather后用动词原型
2.would rather…..than……中用动词原型
I would rather do it by myself.
I would rather watch TV at home than go to the
cinema.
主语从句中的虚拟语气
“It is(was)+形容词
（或过去分词）
+that….”结构中的虚
拟语气 表达形式为should+动词原形或省略should It’s quite necessary that we should have a walk now. 常用的形容词：natural，appropriate，advisable，necessary，important，urgent，probable，possible，desirable，strange。 注意：在上述所列形容词后面用that引出的宾语从句中，谓语动
词也要用虚拟语气。
例：I don’t think it advisable that tom be assigned to the job since he
has no experience.(汤姆缺乏经验，指派他做这项工作我认为是不
恰当的).
表示建议，命令，请求，道歉，怀疑，惊奇等。
It’s a pity that you (should) miss a good chance.
这类名词有：advice，decision，desire，demand，idea，order，pity，
proposal，recommendation，suggestion，surprise，wish，wonder
等。 在“It is (was)+名词+that…..”结构句中的虚拟语气
表语从句或同位语从句中的虚拟语气
某些表示建议，请求，
命令等主观意向的名
词做主语时，其后的
表语从句或同位语从
表达形式为should+动词原型或直接用动词原型。 My idea is that we (should ) think it over before accepting it. We all agree to that suggestion that the meeting (should) be put off. 在It is demanded/suggested/ordered/required…. 4
句需用虚拟语气 that-clause句型中从句用(should )+动词原型
It is demanded that we should work out a plan.
这类名词常见的有：demand，desire，requirement，advice，
recommendation，suggestion，order，necessity，proposal，plan，
idea。
在It is (about/high) time+that 定语从句中的虚拟语气 表示“该做……..的时
候了” 其动词形式用一般过去时或should+动词原型 It is high time that you went / should go to school.
注意：在this is the first time/ second time that….句型中，从句中谓
语动词用陈述语气完成时态。
This is the second time that we have achieved such a great success.
If only 引起的感叹句中的虚拟语气
If only引出感叹句，
意思是“要是…..多
好”，表示说话人的
一种愿望。 表示现在的情况,应用过去式; 表示过去的情况,应用过去完成时态 表示将来的情况，用would+动词原形
例：If only he didn’t drive so fast!(现在)
Look at the terrible situation I am in !if only I had followed your
advice(过去)
If only the rain would stop.(将来)
even if ( even though) 引导的让步状语从句中的虚拟语气 5
表示一种让步语气，表示现在的情况,应用过去式
即使...也做不成某事。 表示过去的情况,应用过去完成时态
Even if he were here, he could not solve the problem.
Even if I had been busy then, I would have helped you.
Choose the best answer:
It is strange that the little boy _____ speak two foreign languages.
A. could b. can C. should D. would
2. He gave orders that the experiment ____ before 5:30pm.
A. be finished B.will finish C. must be finished
3.He _____ you more help,even though he was very busy. A, might have given B. might give C.may have given
4.Without the leadership of the Party,there ____no New China.
A.would be B. has been C. should be D.was
5. He is talking so much about America as if he
_____ there.
had been B. has been
C. was D. has gone
6. The young man insisted that he _____ nothing
wrong and _____ free.
A. did; set B. had done; should be set
C. should do; be set D. had done; must be set
7. Had you listened to the doctor, you _____ all
right now.
are B. were C. would be
D. would have been
8. You _____ come earlier. The bus left a moment
ago.
A. would B. should have C. may D. have
6
CAAA ABCB
7
1
虚拟语气在as if/as
though引导的方式状语
从句中 1.表示与现在事实相反或对现在情况有怀疑，谓语动词用过去式。 He treats the boy as if he were his own son. 2.表示与过去事实相反，谓语动词用过去完成时。 He spoke as if he had known about it. 3．表示与将来事实相反，(表示将来的可能性不大),用would
(might, could)+动词原形
He acts as if he could win in the game .
注意：1.在as if/as though 句中，如果有可能成为事实，用陈述
语气。
例：He looks as if he going to be ill.
2.as though或as if引导的状语从句，从句主语和主句主
语相同时，从句中可省略主语和部分谓语。
虚拟语气用在lest，for
fear that，so that及in
order that引导的目的状
语从句中表示“以防，
以免”等意思 谓语动词多用should/could/might+动词原型构成 For fear that it may rain tomorrow, we should bring an umbrella.
由“providing（that）
/provided（that）/on
condition that/suppose
（that）/supposing
（that）”引导的条件从
句 根据情况，1.可以用虚拟语气。 例：suppose/supposing that it rained,we shouldn’t go out. 2.也可以用陈述语气。 例：They are willing to surrender provided they are
given free pardon..
2
“In case”引导的从句
中即可用陈述句，也可
以用虚拟语气 例：1.The game will be put off in case it (should) snow. 2.The game will be put off in case it snows.
名词性从句中的虚拟语气
一：宾语从句中的虚
拟语气
1.在动词wish/hope
后的宾语从句中的虚
拟语气,表示一种不
可能实现的愿望。 对现在情况的虚拟：从句谓语动词用过去式或过去进行式。 I wish (that) I were a bird. 对过去情况的虚拟：从句谓语动词用过去完成时，或would，could，might+现在完成时。 I wish (that) I had seen the film last night.
对将来情况的虚拟：从句谓语“would/should/could/might+动词原
形”。
I wish (that) I would\could go.
在表示建议，命令，
要求，忠告，等动词
的后面的宾语从句中
的虚拟语气 均以“should+动词原型”表示这种语气，“should”常被省略。 We suggested that the meeting (should) be put off. They insisted that the boy (should) go with them. 常用的此类动词有： 表示“提议，劝告，建议”的：propose,suggest,recommend,advise. 表示“要求”的：ask,desire, request,demand,require,beg 表示“同意，坚持”的：insist 表示“决定，命令”的：decide,order
注意：suggest,insist不表示建议或坚持要某人做某事时，即它们用
于其本意暗示，表明，坚持认为时，宾语从句用陈述语气。
The smile on his face suggested(暗示） that he was satisfied with our
work.
The man insisted 【坚持认为】that he had never stolen the money.
在expect，believe，
think，suspect等动词
的否定或疑问形式后
的宾语从句中的虚拟
语气 经常用“should+动词原型（或完成形式），表示惊奇，怀疑，不满等情绪。 I cannot believe that you should think so.
Would rather，had 谓语动词用过去式表示与现在或将来相反
rather，后的宾语从句 I would rather you told me the truth.
中的虚拟语气
3
用过去完成式表示与过去事实相反。表示“宁愿做什么”或“对
过去做的事的懊悔”。
I would rather you had gone there last Sunday.
注意：1.若某人愿自己做某事，would rather后用动词原型
2.would rather…..than……中用动词原型
I would rather do it by myself.
I would rather watch TV at home than go to the
cinema.
主语从句中的虚拟语气
“It is(was)+形容词
（或过去分词）
+that….”结构中的虚
拟语气 表达形式为should+动词原形或省略should It’s quite necessary that we should have a walk now. 常用的形容词：natural，appropriate，advisable，necessary，important，urgent，probable，possible，desirable，strange。 注意：在上述所列形容词后面用that引出的宾语从句中，谓语动
词也要用虚拟语气。
例：I don’t think it advisable that tom be assigned to the job since he
has no experience.(汤姆缺乏经验，指派他做这项工作我认为是不
恰当的).
表示建议，命令，请求，道歉，怀疑，惊奇等。
It’s a pity that you (should) miss a good chance.
这类名词有：advice，decision，desire，demand，idea，order，pity，
proposal，recommendation，suggestion，surprise，wish，wonder
等。 在“It is (was)+名词+that…..”结构句中的虚拟语气
表语从句或同位语从句中的虚拟语气
某些表示建议，请求，
命令等主观意向的名
词做主语时，其后的
表语从句或同位语从
表达形式为should+动词原型或直接用动词原型。 My idea is that we (should ) think it over before accepting it. We all agree to that suggestion that the meeting (should) be put off. 在It is demanded/suggested/ordered/required…. 4
句需用虚拟语气 that-clause句型中从句用(should )+动词原型
It is demanded that we should work out a plan.
这类名词常见的有：demand，desire，requirement，advice，
recommendation，suggestion，order，necessity，proposal，plan，
idea。
在It is (about/high) time+that 定语从句中的虚拟语气 表示“该做……..的时
候了” 其动词形式用一般过去时或should+动词原型 It is high time that you went / should go to school.
注意：在this is the first time/ second time that….句型中，从句中谓
语动词用陈述语气完成时态。
This is the second time that we have achieved such a great success.
If only 引起的感叹句中的虚拟语气
If only引出感叹句，
意思是“要是…..多
好”，表示说话人的
一种愿望。 表示现在的情况,应用过去式; 表示过去的情况,应用过去完成时态 表示将来的情况，用would+动词原形
例：If only he didn’t drive so fast!(现在)
Look at the terrible situation I am in !if only I had followed your
advice(过去)
If only the rain would stop.(将来)
even if ( even though) 引导的让步状语从句中的虚拟语气 5
表示一种让步语气，表示现在的情况,应用过去式
即使...也做不成某事。 表示过去的情况,应用过去完成时态
Even if he were here, he could not solve the problem.
Even if I had been busy then, I would have helped you.
Choose the best answer:
It is strange that the little boy _____ speak two foreign languages.
A. could b. can C. should D. would
2. He gave orders that the experiment ____ before 5:30pm.
A. be finished B.will finish C. must be finished
3.He _____ you more help,even though he was very busy. A, might have given B. might give C.may have given
4.Without the leadership of the Party,there ____no New China.
A.would be B. has been C. should be D.was
5. He is talking so much about America as if he
_____ there.
had been B. has been
C. was D. has gone
6. The young man insisted that he _____ nothing
wrong and _____ free.
A. did; set B. had done; should be set
C. should do; be set D. had done; must be set
7. Had you listened to the doctor, you _____ all
right now.
are B. were C. would be
D. would have been
8. You _____ come earlier. The bus left a moment
ago.
A. would B. should have C. may D. have
6
CAAA ABCB
7