He won't leave until his father comes.中come 为什么加s

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He won't leave until his father comes.中come 为什么加s

He won't leave until his father comes.中come 为什么加s
He won't leave until his father comes.中come 为什么加s

He won't leave until his father comes.中come 为什么加s
这句话的主句时态是将来时,根据not..until的句型,until后面要用一般现在时,而father是第三人称,所以come要加s

until引导的时间状语从句,用一般现在时表示将来。

his father第三人称单数

father 是第三人称单数
所以加S

He won't leave until his father comes.中come 为什么加s
Answer:
主将从现原则
主将从现是指在时间状语从句和条件状语从句中,如果主句是一般将来时,从句用一般现在时替代一般将来时。
此句是由Not until 引导的时间状语从句,其含意为等到他的父亲在将来的某一刻回来的时候,他才离开)
直译:他直到父亲回来时才...

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He won't leave until his father comes.中come 为什么加s
Answer:
主将从现原则
主将从现是指在时间状语从句和条件状语从句中,如果主句是一般将来时,从句用一般现在时替代一般将来时。
此句是由Not until 引导的时间状语从句,其含意为等到他的父亲在将来的某一刻回来的时候,他才离开)
直译:他直到父亲回来时才离开.
注意:这里所说的"主将从现"原则是指在主句和从句都需使用将来时态时的规则,如果是其它时态需要具体问题具体分析,时态并不是固定的.
(1)主句谓语动词和从句谓语动词所表示的过去动作不是同时发生的,那么先发 生的动作通常用过去完成时表示
如:She didn't go to bed until she had finished her homework.
她完成了课外作业之后才去睡觉
(2)主句谓语动词和从句谓语动词所表示的过去动作几乎是同时发生或紧挨着发生,那前后时态一致.
如:I didn't go to bed until my father came back.
直到我父亲回来我才上床睡觉。
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