二、宾语从句与主句的时态一致

1.主句是一般现在时或一般将来时，宾语从句的时态可以是所需要的任何时态。

She says （that）she works from Monday to Friday.

她说她从周一至周五上班。（从句是一般现在时）

She says （that）she went to Mount Emei last week.

她说上周去了峨眉山。（从句是一般过去时）

2.主句是过去时，宾语从句的时态只能用相应的过去时态。

He said there were no classes yesterday afternoon.

他说昨天下午没有课。（从句是一般过去时）

He promised her that he was going to take care of the baby.

他向她许诺会去照看这个婴儿。（从句是过去将来时）