how many知识询问数量,后跟名词复数.
如：How many pencils do you have?
或：How many books are there in the bookshelf?
注意：people虽然它的复数形式不加s,但人可数,且肯定用are,用how many
如：How many people are there in your family?
how much才是问价格的,还可以问不可数名词的含量?
如：How much water is there in the glass?是问杯子里有多少毫升的水?