题目内容
14.---What a heavy haze(雾霾)!The air pollution is terrible now.---It ________ worse unless we ________ action to protect the environment.
( )
| A. | is; will take | B. | will be; take | ||
| C. | will be; will take |
分析 ----雾真大!现在空气污染真严重.
----如果我们不采取行动保护环境将会更糟.
解答 答案:B.
unless引导条件状语从句,遵循主将从现的规则,主句一般将来时will+动词原形,从句主语we,故take,故答案是B.
点评 unless也可引导条件状语从句,意思是"如果不;除非",相当于 if…not…We'll go for a picnic if it doesn't rain this Sunday=We'll go for a picnic unless it rains this Sunday.
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