In another(另外的) example(例子), he says meeting the 2005 US electricity demand(满足...的需要) via(通过) wind power alone(单独地,单独的) would need 780,000 square kilometres, an area(面积)(of) the size(大小,尺寸) of Texas(得克萨斯州).
9.A) inB) withC) ofD) on
However(然而), several(几个的) experts(专家) are highly(非常) critical 9 Ausubels conclusions(结论).
9.Ccritical 要求后接 of。C 是答案。
10.A) even if(即使)B) only if(只有当...) C) what if(如果...怎么办)D) as if(仿佛)
John Turner of the US government(政府)s National(国家的) Renewable Energy Laboratory(实验室) says that 10 the US got(获得) all of its power from solar energy, it would still need less than (少于)half the amount of land that has been paved(铺(路)) over for highways(公路).
10.A从空10所在的句子分析:the US got all of its power from solar energy 应该是宾语从句中的让步状语从句,选 A 的 even if 是对的。only if (只有当...)、what if (如果怎么办)、as if (仿佛)从其分别得使用特点上看都不能出现在空格处。
e.g. only if you pass(通过) the driving test (驾车考试)can you get drivers license(驾照).
e.g. what if my mother knows I lied to (向...说谎) her? 如果我妈妈知道我说了谎话怎么办?
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