1. 如果主句是一般现在时、一般将来时或祈使句时，宾语从句的时态不受限制，可以根据实际表达的需要来确定。

　　如：Could you tell me what he said at the meeting？

　　你能告诉我他在会上说什么。

　　He will tell us that he has been able to look after himself.

　　他会告诉我们他已经能告诉他自己。

　　Tell him when we will finish our work.

　　告诉他我们什么时候完成工作。

　　2.【考查点】如果主句是过去的某种时态，宾语从句应与主句保持一致，用过去的某种时态。

　　如：He said that he was born in Wenzhou in 1996.

　　他说他1996年出生于温州。

　　They said that they had already seen the film.

　　他们说他们已经看过这部电影了。

　　3.【易错点】如果宾语从句所叙述的是客观事实、格言、科学真理时，从句时态不受主句限制，用一般现在时。

　　如： Everyone knew there are 365 days in a year.

　　大家都知道一年有365天。

　　She said that two heads are better than one.

　　她说三个臭皮匠顶个诸葛亮。

　　He said that the sun rises in the east.

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