01
賓語從句
一、定義
在句子中起賓語作用的從句叫做賓語從句。
二、連接詞
that: I think that you can pass the exam.
Whether/if: I don’t know what the word means.
“What”: I don’t know what the word means.
I don’t know where he found the book.
只用whether的情況：
1. 與or not連用：
I don’t know whether it’s raining or not
2. 與動(dòng)詞不定式連用：
He doesn’t know whether to accept the invitation.
3. 連接詞前有介詞時(shí)：
It depends on whether he is coming.
三、時(shí)態(tài)
1. 主句是一般現(xiàn)在時(shí)態(tài)，從句根據(jù)實(shí)際情況而定(各種時(shí)態(tài)均可)
She wants to know what he has done for the exam.
2.主句是一般過去時(shí)態(tài)，從句用相應(yīng)的過去的時(shí)態(tài)。
She said that she was a student.
She said that she would fly to Japan in a week.
She said that she had finished her homework already.
3. 如果賓語從句說的是客觀真理、自然現(xiàn)象或事實(shí)時(shí)，這時(shí)賓語從句要用一般現(xiàn)在時(shí)態(tài)。
The teacher said that the earth goes round the sun.
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