初中英语宾语从句知识点：宾主从句的时态变化

　　宾语从句的时态

　　(1) 若主句是一般现在时、一般将来时或祈使句时，宾语从句根据句子的意义使用需要的时态。如：

　　We dont know who has broken the window. But we will find out who has done that.

　　Please tell me where we will go.

　　(2) 若主句是一般过去时，宾语从句要用相应的某种过去时态，如一般过去时、过去进行时、过去将来时或过去完成时。如：

　　He said: Im a student. ----- He said that he was a student.

　　The teacher asked: What is Mike doing? ----- The teacher asked what Mike was doing.

　　(3) 若宾语从句叙述的是客观真理或永恒不变的规律，则应采用一般现在时，不受主句时态的限制。如： Our teacher said that the earth moves round the sun.

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