题目内容
19.About ____of the students in Grade Nine this year were born in the_____.( )| A. | three five; 1996. | B. | three fifths; 1990s | ||
| C. | third fifth; 1997. | D. | third fifths; 1990s |
分析 今年九年级大约有五分之三的学生出生于二十世纪九十年代.
解答 答案:B.
根据题干"今年九年级大约有五分之三的学生出生于二十世纪九十年代."判断句中要使用分数五分之三,分数表达法是:分子用基数词,分母用序数词,如果分子大于1,分母要加-s,所以五分之三的正确表达为:three fifths.另外注意:二十世纪九十年代:in the 1990s,故选B.
点评 本题考查分数表示法和年代表示法.首先知道:分子用基数词,分母用序数词;如果分子大于一,分母用序数词的复数形式.然后再根据题干选出正确的选项.二十世纪九十年代:in the 1990s
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