a lot of , lots of +可数名词复数/不可数名词单数
many+可数名词复数，/people, 同样：a large/ great number of； large numbers of,
much+不可数名词单数, 同样： a great amount of；
alotof,lotsof+可数名词复数/不可数名词单数many+可数名词复数，/people,同样：alarge/greatnumberof；largenumbersof,much+不可数名词单数,同样：agreatamountof；
