afew和few修饰或代指的名词

afew和few修饰或代指的名词？

a few(意思是“一些，几个”)和few(意思是“很少，几乎没有”)修饰复数名词或指代可数名词的复数，例如：

1. A few tourists were buzzing around.

几名游客匆忙地跑来跑去（本句中a few修饰了复数名词tourists）

2. About thirty students are in the classroom now but only a few are studying.现在教室里大约有30名学生，但仅有几个在学习（本句中 a few指代可数名students ）

3. Few soldiers were in sight.几乎看不见有士兵（摘自《柯林斯英汉双节大词典》）（本句中few修饰复数名词soldiers，意思时“几乎没有”）

4. Two-thirds students of our class are boys but few of them like playing basketball.我们班三分之二的学生是男生，可是他们中几乎没有喜欢打篮球的。（本句中few指代复数名词boys）