much many a lot of的区别：many意思是很多，与可数名词复数连用；much意思是很多，与不可数名词连用。a lot of既可与可数名词连用，也可与不可数名词连用。它们在句中可作主语、宾语和定语。

much的例句：She laughs too much（她笑得太多了）；many的例句：We've both had a good many beers（我俩都喝了很多啤酒）；a lot of的例句：I think a lot of people still underestimate him（我觉得很多人仍然低估了他）。