Photographs of the earth taken from space show a Apredominantly blue globe, Btwo-third of its surface Cbeing covered by water. E

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问题 Photographs of the earth taken from space show a Apredominantly blue globe, Btwo-third of its surface Cbeing covered by water. Every year an average of 7 000 cubic meters per person flows into rivers and underground channels. And yet water shortages and droughts have become a serious problem, Done that will not go away without better conservation policies.

选项

答案B

解析本题主要考查英语中分数的表达方式，分子用基数词，分母用序数词，如果分子大于1时，分母要加s。句意是，从空间拍摄的地球照片显示，地球大部分是蓝色的，2／3的表面被水覆盖。每年每人平均7 000立方米的水流人河流和地下管道。水资源短缺和干旱已成为一个严重的问题，如果不采取更好的保护措施，该问题将得不到解决。所以正确答案是B选项。

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Photographs of the earth taken from space show a Apredominantly blue globe, Btwo-third of its surface Cbeing covered by water. E

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