(1)too much意为“太多”,它既可作定语,用来修饰不可数名词,也可以作状语,修饰动词.
例如:I had too much housework to do yesterday .昨天我有太多的家务活要干.
She talks too much .她说话太多.
(2)much too意思是“过分,太”,隐含了过分而不恰当之意,much too用作状语,一般修饰形容词或副词,不可用来修饰动词,例如:
The question is much too difficult .这道题太难了.
You’re walking much too fast .你走得太快了.