何時運(yùn)用被動語態(tài)：
（1）強(qiáng)調(diào)動作的接受者：America was discovered by Columbus.
（2）不知誰是動作的執(zhí)行者：You are wanted on the phone.
（3）作客觀說明：It is said that the meeting has been put off. （經(jīng)典句型）
主動變被動的基本方法：（說起來容易，掌握起來需要用心！）
（1）主動語態(tài)中的賓語變?yōu)楸粍诱Z態(tài)的主語。
（2）謂語動詞變?yōu)橛伞癰e + 過去分詞”的形式，配合時態(tài)作相應(yīng)變化。
（3）主動語態(tài)主語置于介詞 by之后，如無必需，則省略。
（4）不及物動詞沒有被動語態(tài)。
現(xiàn) 在 do (does) →am / is / are + done
We keep the piano in the living-room.
→The piano is kept in the living-room.
過 去 did→was / were + done
They built the bridge in 1980.
→The bridge was built in 1980.
將 來 will/shall do → will/shall + be + done
He will read the book tomorrow.
→The book will be read tomorrow.
現(xiàn)在完成 have/has done → have/has + been + done
We have delivered the newspaper.
→The newspapers have been delivered (by us).
過去完成 had done → had been done
She had seen the film before she came here.
→The film had been seen before she came here.
將來完成 will/shall have done → will/shall have + been + done
By the end of this term we shall have finished 80 texts.
→By the end of this term 80 texts will have been finished.
現(xiàn)在進(jìn)行 am/is/are doing → am/is/are + being + done
They are drawing the picture.
→The picture is being drawn by them.< /p>
過去進(jìn)行 was/were doing → was/were + being + done
He was reviewing their lessons at this moment yesterday.
→Their lessons were being reviewed at this moment yesterday.
情態(tài)動詞 may may
can can
must must
should do → should + be + done
ought to ought to
used to used to
You must write an article on the subject.
→An article must be written on the subject.
測試精編
1. Since the first space mission, many communication satellites ________.
A. was launched B. are launched C. have been launched D. had been launched
2. What kind of advice ________ you?
A. has gave B. was gave C. had been given to D. has given
3. The slave ________ from morning till night.
A. madeto work B. was made working C. was made worked D. was made to work
4. The construction of the laboratory ________ by the end of July.
A. must be completing B. must complete
C. must have completed D. must have been completed
5. Your proposal ________ by the committee soon.
A. is discussed B. has been discussed
C. is going to be discussed D. will have been discussed
（后設(shè)答案，大家不要偷看哦~(*^__^*) 嘻嘻……）
KEYS
1. C 2. C 3. D 4. D 5. C
（1）強(qiáng)調(diào)動作的接受者：America was discovered by Columbus.
（2）不知誰是動作的執(zhí)行者：You are wanted on the phone.
（3）作客觀說明：It is said that the meeting has been put off. （經(jīng)典句型）
主動變被動的基本方法：（說起來容易，掌握起來需要用心！）
（1）主動語態(tài)中的賓語變?yōu)楸粍诱Z態(tài)的主語。
（2）謂語動詞變?yōu)橛伞癰e + 過去分詞”的形式，配合時態(tài)作相應(yīng)變化。
（3）主動語態(tài)主語置于介詞 by之后，如無必需，則省略。
（4）不及物動詞沒有被動語態(tài)。
現(xiàn) 在 do (does) →am / is / are + done
We keep the piano in the living-room.
→The piano is kept in the living-room.
過 去 did→was / were + done
They built the bridge in 1980.
→The bridge was built in 1980.
將 來 will/shall do → will/shall + be + done
He will read the book tomorrow.
→The book will be read tomorrow.
現(xiàn)在完成 have/has done → have/has + been + done
We have delivered the newspaper.
→The newspapers have been delivered (by us).
過去完成 had done → had been done
She had seen the film before she came here.
→The film had been seen before she came here.
將來完成 will/shall have done → will/shall have + been + done
By the end of this term we shall have finished 80 texts.
→By the end of this term 80 texts will have been finished.
現(xiàn)在進(jìn)行 am/is/are doing → am/is/are + being + done
They are drawing the picture.
→The picture is being drawn by them.< /p>
過去進(jìn)行 was/were doing → was/were + being + done
He was reviewing their lessons at this moment yesterday.
→Their lessons were being reviewed at this moment yesterday.
情態(tài)動詞 may may
can can
must must
should do → should + be + done
ought to ought to
used to used to
You must write an article on the subject.
→An article must be written on the subject.
測試精編
1. Since the first space mission, many communication satellites ________.
A. was launched B. are launched C. have been launched D. had been launched
2. What kind of advice ________ you?
A. has gave B. was gave C. had been given to D. has given
3. The slave ________ from morning till night.
A. madeto work B. was made working C. was made worked D. was made to work
4. The construction of the laboratory ________ by the end of July.
A. must be completing B. must complete
C. must have completed D. must have been completed
5. Your proposal ________ by the committee soon.
A. is discussed B. has been discussed
C. is going to be discussed D. will have been discussed
（后設(shè)答案，大家不要偷看哦~(*^__^*) 嘻嘻……）
KEYS
1. C 2. C 3. D 4. D 5. C