little,a little,little of ,a little of 的区别.lot ,lots,lots of

little' 代表没有或没的意思 比如：Obama's presidency had little impact in countering the economic crisis in the USA。'a little' 代表一点点或有些 比如：Obama's presidency had a little impact in countering the economic crisis in the USA,eventually resulting in a better financial situation for the Americans。little of代表一点点但是对莫几个东西,或数目不定的 比如：which one whould you like?i have little of all。a little of 代表数目比较小的,量不多的 I have a little of all。lot＝多,大量 lots ＝多,大量（是lot的复数） Lots of 和 a lot of 两个都是以非常多,大量的(不可数名词)。它们都是用在可数和不可数的名词前面 比如：We need a lot of people for this game。比如：She likes lots of jam on her toast。a lot 是用在句子的后面,作为副词,A lot 的后面不可以是名词 比如：I enjoy swimming a lot。