全国MBA考试科目英语语法笔记分享：时态
mba考试科目英语语法：被动语态常用于下列几种情况：
一、动作的执行者无需指出或不明确时
Printing was introduced into Europe from China.
Rome was not built in a day.
二、为了强调动作的承受者
Four people were killed and thirty-one injured in the bomb attack.
Susan was singled out for praise yesterday.
三、为了修辞的需要
He started to complain about this wicked world but was interrupted by a knock at the door.
Yesterdayu he visited our university and was welcomed by the President.
[提示]
1. 除及物动词外， 一些相当于及物动词的短语动词也可作用被动态形式， 除个别情况外， 短语动词一般不拆开使用。
This matter will be dealt with as soon as possible.(短语)
2. 不及物动词(或相当于一个不及物动词的短语动词)和表示状态的动词(或短语动词)无被动态形式， 如happen， rise， occur， take place， break out等; 以及lack， fit， suit， equal， become， resemble， befall， consist of，look like等。
The story took place in 1949.
3. 将主动态形式改为被动态形式时如遇到动词后跟双宾语的情况， 我们只能将其中之一变成主语， 另一个保持不变。当直接宾语变成主语时， 保持在原位的间接宾语前需加介词to。
I gave my hasband a tie as a birthday pressent.
→My hasband was given a tie as a birthday present.
→A tie was given to my husband as a birthday present.
Exercises 2 Choose the best answer to complete the following sentences：
1. The professor was knowledgeable and eloquent and ___B_______ with enthusiasm.
A. was always listened B. was always listened to
C. always was listened D. always listened to
2. He returned a week later and found his house ____D______ 。
A. has broken into B. was broken into
C. to be broken into D. has been broken into
3. The United Kingdom _____C_____ Great Britain and Northern Ireland.
A. consisted of B. is consisted of
C. consists of D. consist
4. These oranges ______B____ nice. (smell feel taste主动形式可表被动)
A. are tasted B. taste
C. is tasted D. tastes
5. In 1950， she was the largest ship that ______D____ 。
A. was ever built B. has ever built
C. has ever been built D. had ever been built
6. The house suddenly collapsed while it ____C______ down.
A. was pulled B. pulled
C. was being pulled D. had been pulled
7. “How do you like your new position?” “I ____B______ 。”
A. don’t satisfy B. am not satisfied(状态)
C. can’t satisfy D. haven’t satisfied
8. The sixth generation computers， with artificial intelligence，
________D__ and perfected now.
A. developed B. will have been developed
C. have developed D. are being developed
9. There are more than fifty proposals ___B_______ at the conference.
A. discussed B. to be discussed
C. discussing D. having discussed
10. Though Newton was a great scientist， many of his ideas
________D__ today and are being modified by the work of today’s scientists.
A. are to challenge B. are challenging
C. may be challenged D. have been challenged
