About of the students in our school were born in the ．( )A．two thirds.1990sB．two thirds.1990C．two third.1990sD．two third.1990 题目和参考答案——青夏教育精英家教网—

8．About _______ of the students in our school were born in the________．（　　）

	A．	two thirds，1990s		B．	two thirds，1990
	C．	two third，1990s		D．	two third，1990

分析我们学校有2/3的学生出生在20世纪90年代．

解答正确答案：A．分数的表达是：分子是基数词，分母是序数词，当分子大于1，分母要用复数形式，所以2/3的表达是two thirds，可先排除CD选项．其次英文中年代用"基数词表示的世纪加十位整数的复数形式构成"，所以在20世纪90年代的表达是in the 1990s，故选择A．

点评年代用定冠词及基数词表示的世纪加十位整数的复数形式构成
本题考查分数及年代表达，考查较细致，所以需掌握其常用的表达．

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