what引導名詞性從句用法
一、用法歸納
1.表示“……的東西或事情”：
They’ve done what they can to help her.他們已經盡力幫助了她。
He saves what he earns.他賺多少，積蓄多少。
What Mary is is the secretary.瑪麗的職務是秘書。
2.表示“……的人或的樣子”：
He is no longer what he was.他已經不是以前的那個樣子。
He is what is generally called a traitor.他就是人們通常所說的叛徒。
Who is it that has made Fred what he is now? 是誰把弗雷德培養成現在這個樣子的？
3.表示“……的數量或數目”：
Our income is now double what it was ten years ago.我們現在的收入是10年前的兩倍。
The number of the students in our school is ten times what it was before liberation.現在我校學生的數量是解放前的10倍。
4.表示“……的時間”：
After what seemed like hours he came out with a bitter smile.似乎過了幾個小時他才苦笑著出來。
The young girl was too frightened to speak, standing there for what seemed like hours.小女孩嚇得不敢說話，在那兒站了幾個小時。
5.表示“……的地方”：
This is what they call Salt Lake City.這就是他們稱為鹽湖城的地方。
In 1492, Columbus reached what is now called America.1492年哥倫布到達了現在所稱的美洲大陸。
二、用法說明
(1) 這樣用的what相當于“先行詞+關系代詞”，所以其前不能有先行詞：
你喜歡什么就拿什么吧。
正：You can have what you like./ You can have everything (that) you like.
誤：You can have everything what you like.
(2) 有時what 可用作限定詞，其后修飾一個名詞：
I gave him what books I had.我把我所有的書都給他了。
He gave me what money he had about him.他把身邊帶有的錢全給了我。
(3) What 后的名詞可以是復數名詞或不可數名詞，但通常不能是單數可數名詞：
誤：I gave him what book I had.
(4) What后接不可數名詞時，有時可有little修飾。注意區別：what+不可數名詞=所有的都，what little+不可數名詞=雖少但全部。如：
I spent what time I had with her.我所有的時間都是與她一起度過的。
I spent what little time I had with her.我僅有的一點時間都是與她一起度過的。
what雙語例句
What?How could you do that?
什么？你怎么可以這樣做？
You feel all that,then what do you do?
你感覺到所有那些，接著你做些什么？
Yes,I do.I like all music.What do you like?
是的，所有音樂我都喜歡。你喜歡什么音樂？