If nothing ________, the oceans will turn into fish deserts.A．doesB．had been don
题型：不详难度：来源：
If nothing ________, the oceans will turn into fish deserts.| A．does | B．had been done | C．will do | D．is done |
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答案
| D |
解析
句意：如果不采取措施，海洋将变成鱼的沙漠。If引导的条件状语从句中：nothing作主语，和谓语动词原型do构成逻辑上的被动关系，用被动语态。
【考点定位】考查动词的被动语态。 |
举一反三
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