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.“Wh”: 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. 與動詞不定式連用：He doesn’t know whether to accept the invitation.3. 連接詞前有介詞時：It depends on whether he is coming.

三、時態(tài)

1. 主句是一般現(xiàn)在時態(tài)，從句根據(jù)實際情況而定(各種時態(tài)均可)She wants to know what he has done for the exam.

2.主句是一般過去時態(tài)，從句用相應(yīng)的過去的時態(tài)。1)She said that she was a student.2)She said that she would fly to Japan in a week.3)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)象或事實時，這時賓語從句要用一般現(xiàn)在時態(tài)。The teacher said that the earth goes round the sun.

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