so many +可数名词
复数eg.There are so many students in the playground.
so much +不可数名词
eg.There is so much water on the floor.
too many +可数名词复数
He has too many questions.
too much +不可数名词
He has had too much rice.
much too +形容词,太……
He is much too tired.他太累了。
希望对你有帮助,祝你开心。本回答被提问者采纳