few, little和a few的区别:
There's a big difference between “few” and “a few”. In fact they have opposite meanings.
few和a few之间区别很大，事实上，它们的意思几乎完全相反。
If you say, for example, “I have a few friends in the Ministry”, it sounds impressive.
比如你说“我在上头有些朋友”，那别人会对你刮目相看的。
　　
“few” = not many;“a few” = several. “Few” and “a few” are used with countable nouns.
few就是不多的意思，a few就是有一些的意思。Few和a few都是用来形容可数名词的。
Ex: The Regulator has presented this standpoint on few occasions.
例1：该官员在很少的一些场合发表过这一观点。
Ex: The Regulator has presented this standpoint on a few occasions.
例2：该官员在不少场合发表过这一观点。
“Little” and “a little” work in the same way as “few” and “a few”.
　　
little和a little的用法和few和a few类似。
“little” = not much; “a little” = some. “Little” and “a little” are used with uncountable nouns.
　　
little的意思是不多，a little的意思是有一些。Little和a little都是用来形容不可数名词的。
Ex: I have a little money” (a modest way of saying you're reasonably wealthy).
例3：我有些钱(这是对我是有钱人的委婉说法)。
Ex: We hope to be able to complete the project in as little time as possible. (i.e. not much time – “as little … as possible” is a common phrase)
例4：我们希望能花最少的时间来完成这个项目(花越少…越好，“as little … as possible”这在英语中是个习惯用法)。