题目内容
3.-What shall we do tomorrow morning?-Would you like to climb the hill if it _______?( )
| A. | rains | B. | doesn't rain | C. | will rain | D. | won't rain |
分析 明天上午我们做什么?
如果不下雨你想要去爬山吗?
解答 答案:B.这里是if引导的条件状语从句,主句含有情态动词would,从句用一般现在时代替一般将来时,主语是it三单.结合句意应是说不下雨才要去爬山,故借助于助动词does构成否定句,后加动词原形rain,故答案是B.
点评 if引导的条件状语从句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.
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