您正在看的英语语法是:英语语法难点精析（一）。 ul person would not have made so many mistakes.
A less conscientious man wouldn’t have tried so hard to get this job done.
(5)分词短语
Having known in time, we might have prevented the accident.
Born ten days earlier, the boy could have seen his late father.
(6)动词不定式短语。一般intended/meant/hoped/wished/planned 或 was/were+不定式完成式或had intended/meant/planned/hoped/wished/+不定式一般式表示虚拟。
I intended I should call on you, but I was busy at that time.
To hear him speak French, you would take him for an Englishman.
She would be stupid not to accept his invitation.
It would be easier to do it this way.
(7)名词短语和名词+and结构
A judicious man would not have committed suicide.
A diligent student would have worked harder.
(8)独立主格结构
All things considered, the price would be reasonable.
(9)定语从句
Anyone who had been in your position would have done the same.
A nation, which stopped working, would be dead in a fortnight.
(10）情态动词完成式暗示虚拟语气：
I should have called to make an airline reservation, but I didn’t.
The porter ought to have called the fire-brigade as soon as he saw the fire in the stock, which went up in smoke.
(11)动词原形表示虚拟
动词原形直接用在句子中也被看作是一种虚拟，最常见于正式文体中，动词原形一般用在条件从句中，有时倒装置于句首，同时这种用法也常见于独立句中表达愿望。
God bless you!
All magnets behave the same, be they large or small.
She’ll be sixteen years odd, com May.(come May =when May come).
If that be so, we shall take action at once. 
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 electio