Scientists are warning that ________ emissions of carbon (碳排放) are cut, we coul - 高中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

Scientists are warning that ________ emissions of carbon (碳排放) are cut, we could be heading for an environmental disaster.

A．before	B．as
C．unless	D．in case

答案

解析

C 考察连词。Before在…之前；as因为，由于；unless除非，如果不；in case万一，假使；句义：科学家警告说如果碳排放不下降，我们会面临环境灾难。根据句义和逻辑关系可知C正确。

核心考点

试题【 Scientists are warning that ________ emissions of carbon (碳排放) are cut, we coul】；主要考察你对连词等知识点的理解。[详细]

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A．until	B．now that
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