The lack of eco-friendly habits among the public is thought to be a major ____ of global climate change.
A．resultB．causeC．warningD．reflection
B
B【命題動向】考查名詞辨析。
解析一：本句的意思是：人們?nèi)狈Νh(huán)境友好的習(xí)慣被認(rèn)為是全球氣候變化的一個(gè)主要原因。result意為“結(jié)果；后果”；cause意為“原因；起因”；warning意為“警告”；reflection意為“表現(xiàn)，反映”。
解析二：考查名詞。題意為“……是全球氣候變化的主要原因(起因)之一”，B項(xiàng)符合。A：結(jié)果；C：警告；D：反應(yīng)。
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