英語語法知識：時態的呼應或一致
編者按：主句謂語時態的動作發生與從句謂語時態的時間的搭配不能有矛盾，一定要符合客觀實際。下面小編就來帶你一起學習下，希望對大家有幫助。
有些從句，特別是賓語從句的謂語時態經常受到主句謂語時態的限制，這種限制叫作時態呼應，或者叫作時態一致。
作表語用的afraid, sure, certain, sorry, worried,glad等形容詞後的從句在意思上等同賓語從句，也受主句時態的限制
I was afraid that it would rain that afternoon.
(當時)我擔心當天下午會下雨。
She was sorry that she had been late.
她因爲自己遲到很抱歉。
主語從句和表語從句受主句時態限制的場合
It was said that the first place went to Class 2.
據說第一名被2班奪去了。
What they wantedto know was whether she had told the truth ornot.
(那時)他們想知道的是她是否已講了實話。
注意：
當主句是現在時態或者將來時態的時候，從句時態不受限制，可以用意思所要求的任何時態：
I know you +
work in an American company.
have worked…
are working…
had worked…before you came back.
were working…
would work…
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