if引导的从句时态 if引导的条件状语从句 - 润桐时尚网 bet366怎么辨别真假_bet366开户_bet366开户
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if引导的从句时态 if引导的条件状语从句

时间:2019-10-09 19:00:53 编辑:润桐时尚网 来源:润桐时尚网

if引导的条件状语从句?

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①?主句为一般将来时态,if从句用一般

现在时态(即主将从现)。

We will stay at home if it rains tomorrow.

如果明天下雨,我将要呆在家。

②?主句中含有情态动词,if从句用一般现在时态。

If you finish your homework, you can go home now.如果你做完了作业,你现在可以回家了。

③?主句为祈使句,if从句用一般现在时态。

Don’t jump into the river if you feel very hot.??如果你感到很热,不要跳入河里。

④?主句为过去将来时,if从句用一般过去时态(如果涉及到be动词,一律都用were)。此时,表达的是和现实相反的推测,用虚拟语气。

If I were you, I wouldn’t do it like that.

如果我是你,我就不会那么做的。

If you gave me some money, I would be very happy.??如果你给我一些钱,我就会很高兴的。

【边学边做】用括号内所给词的正确形式填空。

1. What will you buy if you ________(have)a lot of money?

2. If it ________(not snow)tomorrow, we will feel unhappy.

3. You mustn’t go to school if you ________(be)still in bed.

4. If he _______(be)at home at that time, he would know it.

5. Please show me the way if you ________(know)it.

6. You will hurt your teeth if you ________(eat)too much candy.

7. If you gave me a toy car, I _________(be)very happy.

8. I would get the prize if I _________(work)hard.

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