Don't you smoke until the plane __ off.A takes b has taken 为什么不选A,Don't you smoke until the plane __ off.A takes b has taken 为什么不选A,一般现在时表示将来不是吗,为什么选b啊
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![Don't you smoke until the plane __ off.A takes b has taken 为什么不选A,Don't you smoke until the plane __ off.A takes b has taken 为什么不选A,一般现在时表示将来不是吗,为什么选b啊](/uploads/image/z/11797963-43-3.jpg?t=Don%27t+you+smoke+until+the+plane+__+off.A+takes+b+has+taken+%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%8D%E9%80%89A%2CDon%27t+you+smoke+until+the+plane+__+off.A+takes+b+has+taken+%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%8D%E9%80%89A%2C%E4%B8%80%E8%88%AC%E7%8E%B0%E5%9C%A8%E6%97%B6%E8%A1%A8%E7%A4%BA%E5%B0%86%E6%9D%A5%E4%B8%8D%E6%98%AF%E5%90%97%2C%E4%B8%BA%E4%BB%80%E4%B9%88%E9%80%89b%E5%95%8A)
Don't you smoke until the plane __ off.A takes b has taken 为什么不选A,Don't you smoke until the plane __ off.A takes b has taken 为什么不选A,一般现在时表示将来不是吗,为什么选b啊
Don't you smoke until the plane __ off.A takes b has taken 为什么不选A,
Don't you smoke until the plane __ off.
A takes b has taken 为什么不选A,
一般现在时表示将来不是吗,为什么选b啊
Don't you smoke until the plane __ off.A takes b has taken 为什么不选A,Don't you smoke until the plane __ off.A takes b has taken 为什么不选A,一般现在时表示将来不是吗,为什么选b啊
一般现在是表将来是可以的,比如说,有come,go,arrive,leave,start,begin,return等词,有明确时间规定的.如:The train leaves at six tomorrow morning.
或是用在主将从现的时间或条件状语的句子中.
可don't you somke 你不能把它看成将来时是吧,根据语境,完成时的使用,表示将来某个动作之前已完成.
因为它说直到起飞之后才准吸烟,这是现在完成时用在时间或条件状语从句中,用来表示将来某个动作之前已经完成的那个动作。
懂了么?
比如don't get off the car until it has stopped.一般现在时表示将来也好像没有错啊,虽然我也知道是现在完成表将来完成时 不过还是不明白这两者区别在哪里...
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因为它说直到起飞之后才准吸烟,这是现在完成时用在时间或条件状语从句中,用来表示将来某个动作之前已经完成的那个动作。
懂了么?
比如don't get off the car until it has stopped.
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