you 是主句的主语
it 是从句的主语
it will be (将要"多久“) it 表时间
请及时采纳,不懂继续问( 天天在线 )it是状语从句的主语吗?连接词省略了吗?主句是How long do you think吗?这是个It will be + 时间段 + before-从句还要多久某件事才会发生。我先在抢答时没看到后面还有个before从句这样的话,主句主语当然是表时间的It 了比如:他们还要三天就会来 It will be 3days before they come.这道题It will be后边没有时间段,是不是题错了?没错,这里就是他要问的呀----How long你看下面这句,如果就3 days 提问,不就是这样的了吗?It will be 3days before they come.---How long will it be before they come?it是形式主语吗?那真正的主语是从句吗?不是! 是表时间的。如果它是形式主语,哪来的真正主语呀?! 后面只有个before ---时间状语从句
How long do you think it will be before China sends a manned spaceship to the moon?
How long do you think it will be before China sends a manned spaceship to the moon?
主句是How long do you think it will 主语是什么?you?那 it will be 是什么?
主句是How long do you think it will 主语是什么?you?那 it will be 是什么?
英语人气:539 ℃时间:2019-10-17 14:37:32
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