题目内容

7.( 2014 龙华一模) 一There are       books in the school library, aren’t there?

—Yes,and of them are open to the students.

   A. five thousand;four fifth   B. six thousands;two third

   C. thousand of;four fifths     D. thousands of;two thirds

7. D

7. D

句意:一学校图书馆里有成千上万册书,不是吗?——是的,三分之二是对学生开放的。thousand与具体数词。one,two...或 several,some,inany等连用时,要用单数形式,与of连用时,要用复数 形式,但前面不能再加数词,故先排除B和C;分数的表达方式是:分子为基数词,分母为序数词,当分子大于1的时候分母要用复数,故正确答案为D.

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