首先談?wù)刪ow much 的用法.它有三個用法：
第一：對不可數(shù)名詞的數(shù)量進行提問,how much + 不可數(shù)名詞.
例如：I have some milk. 對some 提問,就用how much, How nuch milk do you have?
再如：There is much water in the bottle. 對much 提問,就用how much, How much milk is there in the bottle?
第二：對物品的價格進行提問.
例如：This computer is 4000 yuan. 對4000 yuan 提問,就用how much, How much is this computer?
再如：These flowers are 40 yuan. 對40 yuan 提問,就用how much, How much are these flowers?
第三：對了解程度進行提問.
例如：How much do you know about your school?
再如：How much does she know about the restaurant?
在理解了how much 的三種用法之后,就可以清楚知道how much is/are 的用法了.是對物品價格的提問.