【題目】The lack of eco-friendly habits among the public is thought to be a major __________ of global climate change.

A. result B. cause

C. warning D. reflection

【答案】B

【解析】句意：公眾缺乏環(huán)保的行為習(xí)慣，這被認(rèn)為是全球氣候變化的主要原因。cause原因，符合題意。result結(jié)果，成效；warning警告；reflection反射，反省。

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