She isn’t as tall as he.

2)He is taller than any other boy in the class.

He is the tallest boy in the class.

3)Mary sings better than any other girl in her class.

Mary sings the be st in her class.

注意：

①用比较级进行比较时，必须用于同一类人或事物

Things are much heavier on the earth than they are on the moon.

Little Tom is now happier than he was two years ago.

It’s colder in winter in Shanghai than it is in winter in Guangzhou.

②物主代词的用法：

Her house is the same size as mine.

物主代词是用来表示所属关系的词，主要有两类：形容词性物主代词和名词性物主代词

形容词性物主代词只能做定语修饰名词，不能单独使用。

This is my/our room.

These are their /our classrooms.

名词性物主代词起名词作用，可单独使用，相当于“形容词性物主代词+名词”。

This room is mine/ours.

These classrooms are theirs/ours.

我的 你的 他(她，它)的 我们的 你们的 他们的

形容词性物主代词 my your his her its our your their

名词性物主代词 mine yours his hers its ours yours theirs

(二)系动词的用法：

主 + 系动词 + 表语

I am a teacher. (ill, tall, at school,…)

He feels tired when he wakes up.

The soup tastes delicious.

She looks beautiful.

感觉 look, seem, smell, taste, sound, feel

变化 turn, become, go, get, grow

保持 stay, keep

其它 fall

以上动词做系动词 + 形容词

(三)重点词汇

1. as 的用法

1)as 像……, 按照……, 像……一样的

Study as Lenin studied.

I have changed it as you suggest.

The work is not as easy as you think.

2)As time goes on, he can get on well with the new classmates. (随着时间的推移)

3)As he was not very well, I decided to go without him. (表示原因)

4)He went by as if he didn’t see me. (好像)