a few,a few of,a lot和a lot of有什么区别?

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a few,a few of,a lot和a lot of有什么区别?

A lot用在句末,比如Thanks a lot
A lot of=Lots of,形容很多,不可数名词和可数名词都可用.
Few 可用作限制形容词,表示很少:He has very few(=not many,a small number of)friends.也可用作补语:These trees were few and far between.还可以用作代词或名词:Many students took exam,but few passed.
A few 可用作限制形容词,表示几个,少数:Are there any streets in this village?No,there are none,but there are a few paths.
A little 表示有一点(肯定),而little表示很少(否定).A little 可用作限制形容词,修饰名词:"Have you much food to spare?""No,I have little=(not much).""Have you any food to spare?""Yes,I have a little(=some little,some) food.也可用作代词或名词,还可用作副词.

a few可以直接跟名词,形容词等;
a few of没看到过;
a lot可以作为句末状语,如:love sth a lot;
a lot of后跟名词。