<例句>
What color are the curtains?
窗帘是什么颜色?
<语法分析>
疑问代词 what 在句子中作定语，此外还可以作主语、宾语或介词宾语等，which 也有这样的用法。此外，what 还可以用作表语。问候 在句子中多作主语或表语，whom 在句子中多作宾语或介词的宾语，在紧跟介词时只能用 whom。whose 可以用作定语、主语、表语或宾语等成分。连接代词与疑问代词同形，可以引导各种从句，在从句中它们可以作主语、宾语、介词宾语、表语和定语等。
<触类旁通>
(1) Who would like to go with me?
谁愿和我一起去?
语法分析：who 在句子中多作主语或表语。
(2) Whom are you writing to?
你在给谁写信呀?
语法分析：whom 在句子中多作宾语或介词的宾语。
(3) To whom did you give the parcel?
你把包裹给谁了?
语法分析：在紧跟介词时只能用 whom，不能用 who.
(4) Whose is better, yours or hers?
谁的比较好，你的还是她的?
语法分析：whose 表示谁的，用作主语。
(5) What is your father?
你父亲是干什么的?
语法分析：what还可以用作表语。
(6) Show me what you have in your hand.
把你手上的东西给我看看。
语法分析：what 引导从句，表示“the thing which...”。
(7) I will give you what help I can.
我将尽量给你帮助。
语法分析：在从句中 what 有时用作定语。
<巩固练习>
1. _____ did you see?
2. _____ do you mean?
3. I asked him _____ came into the room.
4. Do you know _____ that girl's mother is?
5. That is _____ I want to know.
6. Let me know _____ bus you'll be arriving on.
7. I must decide _____ to do with her.
<参考答案>
1. Whom 2. What 3. who 4. what 5. what 6. which 7. what
