1。 The policeman was seen by me。
2。 Those two books were written by me。
3。 These sentences were corrected by my teacher。
4。 He was hit by a car。
5。 His door was locked by me。
6。 His house was built by my father。
7。 His boat was given to me by my father。
8。 This bird is rarely seen by people here。
9。 He is liked by every one。
10。 They were given ten dollars by their friends。
11。 This picture was taken by him。
12。 Too much wine was drunk by the young men。
13。 I was taught by Mr。 Wang。
14。 He was helped by his father。
15。 They were served by that waiter。
16。 His food was prepared by my mother。
17。 His toy was made by my sister。
18。 The book was returned to me by Jim。
19。 That song was written by my brother。
20。 I was invited by him to a party。
8§3 有助动词肯定句子的被动语气
在上一节，我们所有的例子都只是肯定句子，句子中没有助动词，可是有些肯定句子还是有助动词的，以下是一些例子：
主动语气 被动语气
现在进形式 I am writing this letter。 The letter is being written by me。
现在完程序 I have written the letter。 The letter has been written by me。
过去进形式 I was writing the letter when you came。 The letter was being written by me when you came。
过去完程序 I had written the letter before you came。 The letter had been written by me before you came。
将来时 I will write the letter。 The letter will be written by me。
未来完成式 I will have written this letter。 This letter will have been written by me。
将来时 I am going to see you。 You are going to be seen by me。
以下是更多的例子：
主动语气 被动语气
I have seen him。 He has been seen by me。
He is going to help you。 You are going to be helped by him。
He will teach English。 English will be taught by him。
He has helped me all my life。 I have been helped by him all my life。
He had called me before you came。 I had been called by him before you came。
He was calling his mother when we went there。 His mother was being called by him when we went there。
助动词不一定和时态有关，can、should、has to等等都是助动词，这些助动词在改成被动语气的时后，都应维持原状，只需加入verb to be和过去分词即可。以下是一些例子：
主动语气 被动语气
I can play the piano。 The piano can be played by me。
I may use this room。 This room may be used by me。
He must give the book to me。 The book must be given to me by him。
You should help him。 He should be helped by you。
You have to write this letter。 This letter has to be written by you。
He ought to write this report。 This report ought to be written by him。
【练习三十】
将以下的句子改成被动语气：
1。 He has written three novels。
2。 He will write that letter。
3。 They will sing these songs tomorrow。
4。 He will give the speech。
5。 They are painting the house。
6。 I have given him three books。
7。 I can do this job。
8。 He had told me that story before we went there。
9。 Teachers should help the students。
10。 He is writing the report now。
11。 The students must read this book。
12。 I have to give this letter to my mother tonight。
13。 All citizens ought to obey the law。
14。 He has eaten all of the cakes。
15。 The reporters were taking pictures when the storm started。
16。 He had finished the work before five o'clock last night。
17。 Peter will write that letter。
18。 John has received my letter。
19。 Millions of people saw the movie “Gone with the wind”。
20。 He has proved that theorem。
【练习三十一】
将以下句子改成主动语气：
1。 Two books have been written by Joseph。
2。 Football is being played by John。
3。 He should be given that lecture by his father。
4。 That report will be written by him。
5。 The letter has been received by the King。
6。 This movie should be seen by every one。
7。 This book ought to be read by every student。
8。 They are being helped by me。
9。 The movie is going to be seen by all of us。
10。 This cake can be eaten by kids。
8§4 否定句子的被动语气
将一个否定句子或一个问句改成被动语气，其步骤如下：
（1） 将此句子改成肯定句子
（2） 将此肯定句子改成被动语气
（3） 将此被动语气的句子改成否定句子
现在举一个否定的例子：
I did not take this picture。
对应的肯定句子是：
I took this picture。
改成被动语气：
This picture was taken by me。
再改成否定句子：
This picture was not taken by me。
下面的例子都是用来解释如何将一个否定句子改成被动语气：
1。 They did not like the music。
（a）。 They liked the music。
（b）。 The music was liked by them。
（c）。 The music was not liked by them。
2。 I have not written that letter。
（a）。 I have written that letter。
（b）。 That letter has been written by me。
（c）。 That letter has not been written by me。
3。 You can not eat that cake。
（a）。 You can eat that cake。
（b）。 That cake can be eaten by you。
（c）。 That cake can not be eaten by you。
4。 He does not play music。
（a）。 He plays that kind of music。
（b）。 That kind of music is played by him。
（c）。 That kind of music is not played by him。
5。 I am not going to see you。
（a）。 I am going to see you。
（b）。 You are going to be seen by me。
（c）。 You are not going to be seen by me。
6。 They will not see that movie。
（a）。 They will see that movie。
（b）。 That movie will be seen by them。
（c）。 That movie will not be seen by them。
7。 They did not help me。
（a）。 They helped me。
（b）。 I was helped by them。
（c）。 I was not helped by them。
8。 I did not tell that story。
（a）。 I told that story。
（b）。 That story was told by me。
（c）。 That story was not told by me。
在下面，我们将省略中间步骤，直接写出一个否定句子的被动语气，英文好的人应该是不需要中间步骤的：
主动语气 被动语气
They do not enjoy such music。 Such music is not enjoyed by them。
He did not tell that story。 That story was not told by him。
They have not written that story。 That story has not been told by them。
Peter is going to see me。 I am not going to be seen by Peter。
He will not help me。 I will not be helped by him。
John will not eat that cake。 That cake will not be eaten by John。
I can not drink that wine。 That wine can not be drunk by me。
【练习三十二】
将以下的否定句子改成被动语气：
1。 The farmers here do not grow apples。
2。 He did not meet me last night。
3。 I have not written that letter。
4。 John is not going to see that movie。
5。 I did not watch that movie。
6。 He does not speak English。
7。 He will not speak English。
8。 You should not eat that cake。
9。 My mother does not eat that kind of fish。
10。 John has not written that report。
【练习三十三】
将以下句子改成主动语气：
1。 The book was not written by him。
2。 I am not going to be helped by you。
3。 That book has not been received by John。
4。 That song is not liked by college students。
5。 John is not loved by Mary。
6。 I will not be met by my student tomorrow。
7。 Meat is not eaten by vegetarians。
8。 The door was not opened by me。
9。 That ten dollars were not paid by me。
10。 The car was not bought by me。
8§5 问句的被动语气
将问句改成被动语气，步骤类似上一节的步骤，我们先将问句变成肯定句子，然后将这个定句子变成被动语气，最后在将这个被动语气的句子变回，成为问句。
例如：
Do young kids enjoy classical music？
先改成肯定句子
Young kids enjoy classical music。
再改成被动语气
Music is enjoyed by young kids。
最后改成问句
Is music enjoyed by young kids？
为了使读者熟悉这些步骤，我们在下面举了很多的例子：
1。 Did you eat that cake？
（a）。 You ate that cake。
（b）。 That cake was eaten by you。
（c）。 Was that cake eaten by you？
2。 Do farmers in Taiwan grow apples？
（a） Farmers in Taiwan grow apples。
（b） Apples are grown by farmers in Taiwan。
（c） Are apples grown by farmers in Taiwan？
3。 Have you finished the report？
（a） You have finished the report。
（b） The report has been finished by you。
（c） Has the report been finished by you？
4。 When did you write that letter？
（a） You wrote that letter。
（b） That letter was written by you。
（c） When was the letter written by you？
5。 Have you seen that movie？
（a） You have seen that movie。
（b） That movie has been seen by you。
（c） Has the movie been seen by you？
6。 When did Stevenson write that novel？
（a） Stevenson wrote that novel。
（b） That novel was written by Stevenson。
（c） When was that novel written by Stevenson？
8。 Is he painting his room？
（a） He is painting his room。
（b） His room is being painted by him。
（c） Is his room being painted by him？
在下面，我们将省略中间步骤，直接写出一个问句的被动语气，英文好的人应该是不需要中间步骤的：
主动语气 被动语气
Does he help his students？ Are his students helped by him？
Did he tell that story？ Was that story told by him？
Has she written that story？ Has that story been written by her？
Whom is Peter going to visit？ Who is going to be visited by Peter？
When did you read that book？ When was that book written by you？
Does he enjoy that song？ Is that song enjoyed him？
Why do his friends avoid him？ Why is he avoided by his friends？
Whom did you see？ Who was seen by you？
Has he read that report？ Has that report been read by him？
Is he writing that letter？ Is that letter being