1. 疑問(wèn)代詞的基本用法

疑問(wèn)代詞有what, which, who, whom, whose等，主要用于引出特殊疑問(wèn)句。what除可用來(lái)詢問(wèn)人的身份外，一般指物;which可指人也可指物;who, whom, whose一般指人。

2. what與which的區(qū)別

一般說(shuō)來(lái)，沒(méi)有一定的范圍時(shí)，用what，其意為“什么”;有一定范圍時(shí)，用which，其意為“(其中的)哪一個(gè)”。如：

What is the best book you’ve ever read? 你曾經(jīng)讀過(guò)的最好的書(shū)是哪本?

Which of these books is the best? 這些書(shū)哪一本最好?

3. 疑問(wèn)代詞的綜合考查

在英語(yǔ)考試中有時(shí)命題者會(huì)將疑問(wèn)代詞與其他知識(shí)點(diǎn)進(jìn)行綜合考查，如將疑問(wèn)代詞與強(qiáng)調(diào)句結(jié)合起來(lái)考查。如：

— ________ that he manage to get the information?

—Oh, a friend of his helped him.

A. Where was it B. What was it

C. How was it D. Why was it

解析：答案選C。從四個(gè)選項(xiàng)來(lái)看，似乎只是考查疑問(wèn)詞where, what, how, why的辨析與選擇，其實(shí)它還結(jié)合了強(qiáng)調(diào)句的知識(shí)進(jìn)行考查，根據(jù)答語(yǔ)中的 a friend of his helped him可知，問(wèn)句問(wèn)的是方式，故選how was it。