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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 written by him？
【练习三十四】
将以下句子改成被动语气：
Is he writing a book？
Did he write that book？
Did you sign that letter？
Where did you see that movie？
When did you see that movie？
Has he finished that job？
Did mother give you the gift？
Did your mother visit you last night？
Do they grow roses？
Do they speak English？
Did you play that game of tennis？
Will you teach English？
【练习三十五】
将以下句子改成主动语气：
Was the cake eaten by you？
Is he liked by all of us？
Is that kind of music loved by every one in Japan？
Is fish eaten by old people？
Are roses loved by most women？
Was he called by you？
Is soccer played by John？
When was this music written by Mozart？
When was he seen by you？
Were they seen by you last night？
【练习三十六】
将适宜的动词填入
I （send） two letters yesterday。 （do） you （receive） them？ Every letter （write） by me。 Please （write） back to me soon。
I （invite） to a dancing party last week。 The music （be） so noisy。 I （leave） the party as early as I （can）。
Did you （write） that report？ Yes； it （write） by me。
He （not like） music when he was a child。 After he （get） into college； he （teach） by a good music professor。 Now； he （enjoy） music very much and （listen） to classical music every morning。
I （buy） a red car yesterday。 It （make） in Japan。 It will __________ （deliver） to me tomorrow。
I （not go） to school yesterday because my bicycle （steal）。
I （buy） a new bike yesterday。
Where （do） you go last night？ I （can） not （find） you。 You （see） by no one。
A： （do） he （smoke）？
B： No； he （do not）。 Smoking has never （try） by him。
Was the book （write） by him？
I （buy） three books lately。 One （write） by Graham Greene。
I （finish） reading it。 There （be） many interesting stories in it。
【练习三十七】
改错：
＊This is a book which wrote by Dickens。
＊Are the music enjoyed by those elderly people？
＊When are you visited by your father yesterday？
＊This book written by John。
＊He is invited to e to my home by my father yesterday。
＊This house is built in 1913。
＊This letter was wrote by him。
＊This letter has never finished。
＊Was you given a book？
＊I have never called by my father。 I always call him first。
第九章 动词如何转换成名词 动名词（Gerund）和不定词（Infinitive）
9§1 问题的来源
对我们说中文的人而言，一个字究竟是动词，还是名词，其实是很少人知道的，对一般人而言，〝唱歌〞是动词，但是如果我们说，〝唱歌是有益的〞，我们又发现〝唱歌〞其实也是名词。〝我爱唱歌〞，这句话中，〝唱歌〞也是名词。
英文就不同了，英文里很少有一个字，又是动词，又是名词的，sing是动词，绝不能当很名词用。怪不得有很多中国人会说
＊Sing is good for you。 或者是 ＊I like sing。
既然sing是动词，也没有一个〝sing〞的名词，怎么办呢？英文解套的办法很有趣，他们用动名词（gerund）和不定词（infinitive）来将一个动词改成一个名词。
9§2 动名词（Gerund）
所谓动名词，乃是将一个动词，字尾加上ing，一夜之间，这个动词就可以当作名词用了。请看以下的例子：
I like singing。
Playing basketball is good for you。
Do you enjoy listening to classical music？
Is traveling around the world meaningful to you？
Studying English is not difficult。
我们不妨将动名词的用法分一下类：
1。动名词可用作主词，如
Playing tennis is enjoyed by many people。
Taking drugs is avoided by most people。
eing kind to others is important for every one。
Respecting your parents shows good character。
2。动名词可以用作动词的受词，如
I enjoy studying English。
He does not mind walking long distances。
I have never enjoyed being alone in my life。
He loves swimming。
3。动名词可以用作介系词（preposition）的受词，英文里有很多介系词，at； in； about； of； on等等都是介系词，介系词后面必定跟一个名词，也是它的受词，举例来说
on the table
in my home
about Hitler
of my life
on this island
各位一定注意到，每一个介系词后面都有一个名词，作为它的受词。
动名词是可以作为介系词的受词的，如：
This book is about traveling。
He is responsible for cleaning the kitchen。
My brother is capable of writing programs。
You just keep on going straight。
在下面，我们要给各位更多有关gerund的例子，各位不妨看看每一个句子中，那个动名词是作什么用的。
Instead of swimming； he walks every morning。
He likes walking in the woods。
Are you interested in playing tennis？
Loving is to be kind to others。
Reading is important to students。
In addition to traveling； he also likes reading novels。
You will be happy by helping others。
He is worried about being late。
I finished writing the report yesterday。
They thanked me for lending them money。
He has never finished writing the novel。
She is in change of teaching English in our school。
My father objected to my going to the summer camp。
Please stop joking about my brother。
I look forward to seeing you。
He has never enjoyed traveling。
She was excited about going abroad。
I consider gambling a bad thing to do。
I have never dreamed of flying an airplane。
He suggested talking to our teacher。
I believe in doing some kind of exercise every day。
Playing the piano is no fun at all。
Nancy is accustomed to sleeping late。
Are you tired of driving for so long？
You should forgive others for doing wrong things。
He insists on getting up early every morning。
Thank you for participating in my concert。
He is used to studying alone。
They are not used to speaking English。
He is accustomed to being polite to others。
I object to seeing dirty movies。
You should take advantage of studying in such a good place。
【练习三十八】
改正以下的错误
1。＊Play tennis is fun。
2。＊I hate swim。
3。＊Stop talk about me。
4。＊In addition to read interesting books； you should also watch TV from time to time。
5。＊I am not interested in swim。
6。＊He talks about go to America。
7。＊I believe in do exercise every day。
8。＊The cost of transfer a student to another school is very high。
9。