a lot of ,lots of ,a lot,lot的区别?

问题描述:

a lot of ,lots of ,a lot,lot的区别?
请例如这样解释:a lot of是修饰可数和不可数名词,是放在肯定句还是否定句还是疑问句中,等等.还有什么区别就写什么,谢谢!

a lot of=lots of,可以修饰可数名词和不可数名词,一般用在肯定句中.
如:
There is a lot of(lots of)apples in the basket.
a lot用在句末,作程度副词使用.
如:
Thanks a lot.
很少单独使用lot.