量词使用中应注意的几个问题：
1） 分清可数名词和不可数名词是前提；
2） 不要把量词的形式搞混淆了：下面哪个表达形式是对的？
A. A lot students have come back from the summer holiday.
B. A few of the students have come back from the summer holiday.
C. A great many of students have come back from the summer holiday.
D. Many a student has have come back from the summer holiday.
E. The number of students have come back from the summer holiday.
F. A number of students have come back from the summer holiday.
以上六个表达方式中只有F 是对的。为什么？
A. a lot students → a lot of students
B. a few of the students → a few students
C. a great many of students → a great many students
D. Many a student has come back from the summer holiday.
E. The number of 表示数目，如：The number of the students in our class is 50.
A number of 表示"一些"，"不少"，认真对比一下，看出问题来了吗？
问多少钱、多少重量时用：How much…？问距离时用：How far is it from…to…?