[小四] How many…？用法有讲究

    Dear friends,你们都知道how many是"多少,几个"的意思,它修饰可数名词的复数,可大家知道它的用法还有讲究吗?
    how many用于特殊疑问句,它的句式是:How many+复数名词+一般疑问句?
    对there be句型中主语的数量如:some, five, only one等提问时,如果主语是可数名词,不管主语是单数还是复数一般都用复数形式提问,因为问话人不知道具体的数量是多少,而且many只能接可数名词复数形式,所以be一定要用are.即用"How many+可数名词复数+are there+地点/时间状语?"的句型结构.例如:
    1. There is a book on the desk. (用how many改为特殊疑问句)
    How many books are there on the desk?
    2. There are seven days in a week. (对划线部分进行提问)
    How many days are there in a week?
    由how many引导的特殊疑问句可用下面口诀记忆:
    how many在句首,名词复数跟着走,一般问句紧相随,其它成分不要丢.
    对how many引导的特殊疑问句要用陈述句来回答,一般情况下数词后面的句子成分可以省略.如:
    —How many students are there in your class?
    —There are fifty-six(students in our class).
    小朋友们,今天学的语法知识你们都理解并掌握了吗?别忘了多多练习哟!