在表示比较是,常用形容词比较级+than的结构,举两例句.除此之外,还可以通过其他一些句子结构来对人或事物进行比较.

1、 He is fatter than Liuming.
2、The air pollution is more serious than before.
3、John is less stupid than Mike.
4、You’re a girl as good as Lily.
5、Your room is three times larger than mine.
6、This tree is twice as tall as that one.
7、This book is half as thick as that one.
8、The days are getting longer and longer in summer.

She did it much better than I had done.
其他句子结构例如
The earth is 49 times the size of the moon.