1.疑問代詞是問何人、何物、何者的代詞,如:who( 誰,問人）whose（誰的,問所有者）,whom（誰,問人,是who的賓格）,which（哪一個）,what(什么,問東西）等.
2.疑問代詞后不可接名詞,如接名詞,即為疑問形容詞.
Whose is this pen?這筆是誰的?
Whose是疑問代詞.
Whose pen is this?這是誰的鋼筆?
Whose是疑問形容詞.
3.疑問代詞沒有數(shù)的區(qū)分,作主語時,除非在疑問句本身中已清楚表明疑問詞所代表的人或物是復(fù)數(shù),其后的謂語動詞一律用單數(shù)形式.
Who lives in this room?誰住在這房間?
What has happened?出了什么事?
Who are these people?這些人是誰?
4.who和what在指人時意義不同.who問姓名、親屬關(guān)系,what問身分、職業(yè).
Who is he?他是誰?
What is he?他是做什么的?
5.疑問代詞用來構(gòu)成特殊疑問句,一般放在句首,并充當(dāng)某一句子成分,如主語、主語補(bǔ)語、賓語.
Who will join us?誰愿意加入我們?
who作主語.
Who is the man carrying a brown suitcase?那個提著棕色手提箱的人是誰?
who作主語補(bǔ)語.
Whom did she marry?她嫁給了誰?
whom作賓語.
With whom did she dance the Waltz?她跟誰跳的華爾滋舞?
whom作介詞with的賓語.
Which do you prefer,beer or whiskey?你喜歡啤酒還是威士忌?
which作賓語.
6.可以引導(dǎo)名詞從句,將兩個從句連接起來,并在從句中擔(dān)任成分.
Do you know what her name is?你知道她叫什么名字嗎?
what在從句中作主語補(bǔ)語.
Tell me which is better.告訴我哪個好一些.
which在從句中作主語.