lots of 意为“许多” 就等于a lot of .后面可加可数名词复数,和不可数名词.eg:1.There is a lot of (或者lots of)water in the river.2.There are a lot of (或者lots of)students in my school.在这里food 是食物的意思,不可数名词,所以用is
2 there are all kinds of fruit on a small table.这句强调食物的种类,而1 there is a lot of food on a small table.强调食物的多,