If nothing .the oceans will turn into fish deserts. A．doesB．had been doneC．will doD．is done 题目和参考答案——青夏教育精英家教网—

If nothing________，the oceans will turn into fish deserts. (2013·湖南，26)

A．does	B．had been done
C．will do	D．is done

解析考查动词的时态和语态。句意为：如果什么都不做的话，海洋将会变成鱼的沙漠。根据“主将从现”的原则，从句用一般现在时。再根据语境可知此处表示被动。故选D项。

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