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It's high time that we gave ___ attention to our world clima

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It's high time that we gave ___ attention to our world climate and led a low-carbon life,or the consequence would be too serious for us to face.
A effective B efficient C due D temporary
请详细分析下句意及各选项,
It's high time that we gave ___ attention to our world clima
1.答案:C.
2.翻译:到了我们该给世界气候应得的/适当的注意并过低碳生活的时候了,否则后果就会非常严重到我们无法面对/应对.
3.
1)此题主要考察单词含义及句意通顺.
A effective 意思是“有效的”;
B efficient 意思是“效率高的”;
C due 有两个意思是“应有的/应得的;适当的/合适的/恰当的”;
D temporary 意思是“短暂的/短期的”.
2)由上可知,只有C正确.