1) 疑問代詞在句中起名詞詞組的作用,用來構(gòu)成疑問句.疑問代詞有下列幾個:
指 人:who,whom,whose
指 物:what
既可指人又可指物:which
2) 疑問代詞在句中應(yīng)位于謂語動詞之前,沒有性和數(shù)的變化,除who之外也沒有格的變化.what,which,whose還可作限定詞.試比較:
疑問代詞:Whose are these books on the desk?
桌上的書是誰的?
What was the directional flow of U.S.territorial expansion?
美國的領(lǐng)土擴張是朝哪個方向的?
限定詞:Whose books are these on the desk?
桌上的書是誰的?
What events led to most of the east of the Mississippi River becoming part of the United States?哪些事件使密西西比河以東的大部分土地歸屬于美國?
說明1:
無論是做疑問代詞還是限定詞,which 和 what 所指的范圍不同.what所指的范圍是無限的,而which則指在一定的范圍內(nèi),例如:
Which girls do you like best?
你喜歡哪幾個姑娘?
What girls do you like best?
你喜歡什么樣的姑娘?
說明2:
Whom是who的賓格,在書面語中,它作動詞賓語或介詞賓語,在口語中作賓語時,可用who代替,但在介詞后只能用whom,例如:
Who(m) did you meet on the street?
你在街上遇到了誰?(作動詞賓語)
Who(m) are you taking the book to?
你要把這書帶給誰?(作介詞賓語,置句首)
To whom did you speak on the campus?
你在校園里和誰講話了?(作介詞賓語,置介詞 后,不能用who取代.)
說明3:
疑問代詞用于對介詞賓語提問時,過去的文體中介詞和疑問代詞通常一起放在句首,現(xiàn)代英語中,疑問代詞在句首,介詞在句未,例如:
For what do most people live and work?
大部分人生活和工作的目的是什么?(舊文體)
What are you looking for?
你在找什么?(現(xiàn)代英語)
說明4:
疑問代詞還可引導(dǎo)名詞性從句,例如:
I can't make out what he is driving at.
我不知道他用意何在.
Can you tell me whose is the blue shirt on the bed?
你能告訴我床上的藍襯衣是誰的嗎?
Much of what you say I agree with,but I cannot go all the way with you.
你說的我大部分同意,但并不完全贊同.
3)疑問代詞用于特殊疑問句中,疑問代詞一般都放在句首,并在句中作為某一句子成分.如:
①What is this?(what作表語)這是什么?
② Which is bigger,the left one or the right one?(which作主語)哪一個大一點,左邊的一個還是右邊的一個?
③What are you talking about?(what作賓語)你在說什么?
④Who will go with you?(who作主語)誰和你一起去?
⑤Whom are you talking to?(whom作賓語)你在跟誰說話?
⑥Whose dictionary is this?(whose作定語)這是誰的字典?
●which表示在一定數(shù)目(或范圍)之內(nèi)的選擇,what則沒有這種限制.如:
①Which do you prefer,coffee or tea?咖啡和茶,你喜歡喝哪種?
②What do you usually drink before dinner?
你飯前通常喝什么?
4)疑問代詞可以引導(dǎo)主語、賓語、表語從句等.疑問代詞本身在從句中擔當一定的句子成分.如:
①Who will attend the meeting is still not decided.
誰出席這個會議,現(xiàn)在還沒有決定.(疑問代詞who引導(dǎo)一個主語從句,它本身又在從句中作主語.)
②Do you know which grade she is in?
你知道她上幾年級了嗎?(疑問代詞which引導(dǎo)賓語從句,它本身在從句中作定語.)
③What he says sounds true.
他講的話聽起來很對.(疑問代詞what雖然相當于all that,它引導(dǎo)一個主語從句,但它本身作從句的賓語.)
④What his name is remains unknown.
還沒有人知道他叫什么名字.(疑問代詞what引導(dǎo)主語從句,what在從句中作表語)
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