___ years ago, the population of China was over 20 million.A.Four hundredsB.Fou

___ years ago, the population of China was over 20 million.A.Four hundredsB.Fou

题型:不详难度:来源:
___ years ago, the population of China was over 20 million.
A.Four hundreds
B.Four hundred
C.Four hundred of
D.Four hundreds of

答案
B
解析

试题分析:此题考查名词的量。确切数量常用数词+hundred/thousand/million/
billion+名词的复数形式;不确切数量常用hundreds/thousands/millions/billions + of+名词的复数形式.根据语境可知选择B。
点评:区分确切数量和不确切数量的表达方式,有几个关键点要分清楚。确切数量必须要有基数词,且量词不能用复数形式;不确切数量的量词必须要有复数形式,且其后一定要加介词of。只要掌握好这两点,确切数量和不确切数量的问题基本解决。
举一反三
There are about          teachers in our school.
A.two hundreds ofB.two hundreds
C.two hundredD.two hundred of

题型:不详难度:| 查看答案
Six million, six hundred and sixty-six thousand, six hundred and sixty-six is________.
A.6,666,666B.666,666,666C.6,600,666D.60,600,666

题型:不详难度:| 查看答案
Mary came ______in the Chinese exam. This is _______time she got the good mark.
A.first, second B.the first; the second
C.first; the secondD.the first; second

题型:不详难度:| 查看答案
There are nine______ students at Green High School. Five _____ of them walk to school.
A.hundred, hundred
B.hundreds, hundreds
C.hundreds of, hundred
D.hundred of, hundreds

题型:不详难度:| 查看答案
I’m going to stay in my uncle’s for       .
A.one day or two days
B.one or two days
C.one day or two
D.one and two

题型:不详难度:| 查看答案
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