作业帮英语条件状语从句与时间状语从句还有宾语从句的主从句时态变化说一下.最好每种举个例子,还有是不是只有条件状语从句与时间状语从句才有主将从现等的规律?
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英语条件状语从句与时间状语从句还有宾语从句的主从句时态变化说一下.最好每种举个例子,还有是不是只有条件状语从句与时间状语从句才有主将从现等的规律?
英语条件状语从句与时间状语从句还有宾语从句的主从句时态变化说一下.
最好每种举个例子,还有是不是只有条件状语从句与时间状语从句才有主将从现等的规律?
英语条件状语从句与时间状语从句还有宾语从句的主从句时态变化说一下.最好每种举个例子,还有是不是只有条件状语从句与时间状语从句才有主将从现等的规律?
条件状语从句
主要看一下由if引导的条件状语从句.if 意为“如果”,引导条件状语从句时,表示假如有从句的动作发生就（不）会有主句的动作发生.例如：
If it doesn't rain tomorrow,we will go there by bike.如果明天不下雨,我们就骑自行车去那里.
If I get there early,I can see the doctor quickly.如果我早早地到那里,我就可以快点看病.
在时间状语从句和条件状语从句中,主句和从句之间的时态一致问题一般分下列两种情况：
1.若主句是祈使句,或主句中有情态动词,或主句中谓语动词是一般将来时,那么从句用一般现在时表示一般将来时.例如：
Be careful when you cross the road.过马路时要小心.
Put up your hand if you have any questions to ask.如果你们有问题要问的话,请举手.
The traffic must stop when the lights are red.红灯亮时,车辆必须停下.
2.若主从句谓语动词都是陈述过去,那么主从句都可以用一般过去时.例如：
She could sing when she was four years old.她四岁的时候就会唱歌.
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if you win a iot of money?
i grew a beard during the trip,but i shaved it ofdf when i came home.
i don't know what you are talking about.
从句都用一般现在时表示将来时,也就是说主句是将来时, 可是从句都用一般现在时.如
If you go to the party , you will have a great time. 条件句是一般现在时,主句用一般将来时
If you were a butterfly , you would fly in the sky. 条件句是一般过去时,主句用would/could +V...
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从句都用一般现在时表示将来时,也就是说主句是将来时, 可是从句都用一般现在时.如
If you go to the party , you will have a great time. 条件句是一般现在时,主句用一般将来时
If you were a butterfly , you would fly in the sky. 条件句是一般过去时,主句用would/could +V
宾语从句的时态可以用将来时,也要看主句表达的意思,用其它时态
I don't know when he will come back.
Do you see what they are doing now?
时间状语也确实要遵循主将从现,
I will tell you as soon as they come back.
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