2. 外语
  3. Nearly (three quarters of the surface) of the earth (are) covered with water, and (there) would be even less land (if) the polar

Nearly (three quarters of the surface) of the earth (are) covered with water, and (there) would be even less land (if) the polar

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问题 Nearly (three quarters of the surface) of the earth (are) covered with water, and (there) would be even less land (if) the polar icecaps were melt.
选项 A、three quarters of the surface
B、are
C、there
D、if
答案B
解析 应改为is，因为主语是surface，是不可数名词，所以谓语动词用单数。本句的意思是：“地球几乎3/4的表面是水，如果北极的冰盖融化了的话，陆地就更少了。”
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