小博士：我们在这几个月的学习里，接触到不少的疑问词，其中疑问代词占大多数。那么疑问代词有哪些？又有哪些用法呢？看看下面的总结吧！

　　1)疑问代词在句中起名词词组的作用，用来构成疑问句。疑问代词有下列几个：

　　指人：who，whom，whose

　　指物：what

　　既可指人又可指物：which

　　2)疑问代词在句中应位于谓语动词之前，没有数的变化，除who之外也没有格的变化。无论是做疑问代词还是限定词，which和what所指的范围都是不同的。what所指的范围是无限的，而which则指在一定的范围内，例如：

　　Which movies do you like best?

　　你喜欢哪几个部电影？

　　What movies do you like best?

　　你喜欢什么样的电影？

你明白了吗？那么就请选用刚才我讨论过的疑问词完成下面句型转换。

1　　My favorite subject is science.

________ ________ your favorite subject?

2　　He likes art best.

________ ________ he like best?

3　　My science teacher is Mr Green.

________ ________ your science teacher?

4　　He's really busy today.

________ ________ really busy today?

5　　Betty's backpack is in her bedroom.

________ backpack is here?

填入相应的人称代词或物主代词

上表中第一行是人称代词（主格），来代指人，在句中作________。第二行是物主代词，表示“……的”，起到形容词的作用，修饰限定________

用who，whose，which或that完成下列定语从句。（要填全，缺一项不得分）

1．The cartoons ________ I like have lots of jokes．

2．Jamie is a cook ________ ideas are changing school dinners．

3．The writer ________ has written many wonderful characters is David．

★将下列各句的主动语态变被动语态。

4．People have translated his book into more than 50 languages．

→His book ________    ________    ________ into more than 50 languages．

5．Did the children watch the cartoons that Alice drew last Friday?

→Did the children watch the cartoons that ________    ________ by Alice last Friday?

★将下列句子改为同义句。

6．How many people are there in Beijing?

→________ the ________ of Beijing?

7．The fans welcome the singer warmly．

→The singer ________  ________  ________  ________  ________ by his fans．

★主谓一致。选择合适的词完成句子。

8．The police ________ （is／are）searching for the lost man．

9．Five minutes ________ （is／are）not enough to do this exercise．

★用合适的冠词填空。

10．①________ water is too hot．I can’t drink it．②It isn’t easy to run ________ big city well．

----Who's it?

----It's me.

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　　A. 指人   B. 指物   C. 指事   D. 指地点