Global warming caused by human being’s casual behaviour has become a major _____
题型：不详难度：来源：
Global warming caused by human being’s casual behaviour has become a major _______ for people all over the world.| A．conflict | B．concern | C．challenge | D．factor |
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答案
| B |
解析
试题分析：考查名词辨析：A. conflict冲突B. concern关心，担心 C. challenge挑战D. factor
因素，句意：由人类随意的行为导致的全球变暖已经变成全世界的人关心的事情了。选B。
点评：对于相似名词的意思，要注意识记和背诵，做题时联系上下文语境进行考查。 |
举一反三
lt seemed such a that people just stood by watching the old lady lying on the ground suffering pains.| A．mess | B．shame | C．disaster | D．fault |
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