一、单独作为manymuch的比较级,为形容词,表“更多……”.
1．A big truck is carrying more oranges than that one．(many的比较级)
这辆大卡车比那辆装的桔子多.
2．Is there more water in the yellow glass than that in the green one?(much的比较级)
那黄杯里的水比绿杯里的多吗?
二、常放在数词或some,any等后面,表“更多、额外数量”,相当于形容词,其后往往省略名词.
1．There’re only two books．we’ll need one more．
那儿只有两本书,我们还需要一本.
2．—Would you like some more?
你还要吃一些吗?
—No,thanks．i’m full．
不,我饱了.
三、more and more用在名词前,表“越来越多”,用来修饰形容词、副词（双音节或多音节）时,表“越来越……”.
1．There are more and more books in the library．
图书馆里的书越来越多了.
2．English is becoming more and more important．we must work hard at it．
英语变得越来越重要了,我们必须努力学好它.
其他用法：
一、副词,与某些双音节或多音节的形容词、副词一起构成其比较级.
1．I think our city is more beautiful than yours．
我认为我们的城市比你们的更美丽.
2．Han mei studies more carefully than wang fang．
韩梅比王芳学习更认真.
二、the more,the better表“越来越好”,the more可放名词前.
1．The more books we have,the better we are．我们的书籍越多越好.
2．The more friends she has,the better she is．她的朋友越多越好.
“the more,the＋比较级”中第二个the后可接其它比较级形式,如the more…,the worse…越多越糟.
三、放在than前,构成more than短语,相当于over.它们常放在数词前,表示“多于……,超过……以上”.
kate is a good student．she has more than one hundred books．
凯特是一个好学生,她有一百多本书.