1. 連接代詞的用法。連接代詞主要包括who, whom, what, which, whose等，它們在句中可用作主語、賓語、表語、定語等，可以引導(dǎo)主語從句、賓語從句和表語從句：
引導(dǎo)主語從句：
Which side wins makes no difference to him. 哪邊贏他都無所謂。
What he had hoped at last came true. 他希望的事最后實現(xiàn)了。
引導(dǎo)賓語從句：
Do you know who he is. 你知道他是誰嗎？
I don’t know who he gave it to. 我不知道他把它給誰了。
He asked me what I wanted. 他問我想要什么。
I don’t know whose it is. 我不知道那是誰的。
I missed what you said because of the noise. 由于嘈雜我沒聽清你的話。
引導(dǎo)表語從句：
This is what I want to stress. 這是我想強(qiáng)調(diào)的。
That is what he meant. 這就是他的意思。
The question is whom we should trust. 問題是我們應(yīng)當(dāng)相信誰。
The question is which design is better. 問題是哪個設(shè)計更好。
2. what 的兩種用法。what有時表示“什么”，帶有疑問意味；有時表示“所…的一切事或東西”：
I don’t know what he wants. 我不知道他想要什么。
What he says is right. 他所說的是對的。
I believe what she told me. 我相信她和我所說的話。
引導(dǎo)主語從句：
Which side wins makes no difference to him. 哪邊贏他都無所謂。
What he had hoped at last came true. 他希望的事最后實現(xiàn)了。
引導(dǎo)賓語從句：
Do you know who he is. 你知道他是誰嗎？
I don’t know who he gave it to. 我不知道他把它給誰了。
He asked me what I wanted. 他問我想要什么。
I don’t know whose it is. 我不知道那是誰的。
I missed what you said because of the noise. 由于嘈雜我沒聽清你的話。
引導(dǎo)表語從句：
This is what I want to stress. 這是我想強(qiáng)調(diào)的。
That is what he meant. 這就是他的意思。
The question is whom we should trust. 問題是我們應(yīng)當(dāng)相信誰。
The question is which design is better. 問題是哪個設(shè)計更好。
2. what 的兩種用法。what有時表示“什么”，帶有疑問意味；有時表示“所…的一切事或東西”：
I don’t know what he wants. 我不知道他想要什么。
What he says is right. 他所說的是對的。
I believe what she told me. 我相信她和我所說的話。