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

题目内容

1．About _____ of the students in our class were born in the ______．（　　）

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

分析我们班大约三分之二的学生出生于二十世纪九十年代．

解答答案：A．
分数的表达形式为：基数词（分子）+序数词（分母），分子大于一时分母加s．根据本规则，三分之二的英语表达法是two-thirds，而表示年代的话数字后面应该加s．故选A．

点评本题考查分数的用法，考生在掌握基础知识的基础上结合语境可正确作答．

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