句型11：the +比较级，the +比较级

The more one has，the more one wants.

越有越贪

句型12：... as +adj./ adv.+as ... ; …not as/so+adj/adv. +as...

Do you think that art is as important as music?

你认为艺术和音乐一样重要吗?

Last Sunday the weather was not so wet as it is today.

上个星期天的天气不如今天的天气潮湿。

句型13：more/ less +adj.+than...

I think art is less important than music.

我认为艺术不如音乐重要。

句型14：stop sb/sth from doing sth.

The Great Green Wall will stop the wind from blowing the earth away.

绿色长城将阻挡风吹走土壤。

句型15：both ... and ...

Both you and I are students.

我和你都是学生。

句型16：either ... or...

Either you or he is wrong .

不是你错就是他错。

句型17：neither ... nor ...

Neither he nor I am a student.

我和他都不是学生。

句型18：... as soon as ...

As soon as I see him，I’ll give him the message.

我一见到他，我就把你的消息告诉他。

句型19：... so+adj. / adv.+that ...

I was so tired that I didn’t want to speak.

我累得连话也不想说了。

句型20：Though...+主句

Though I like writing to my pen-friend，it takes a lot of time.

虽然我喜欢给笔友写信，但它要耗费我大量时间。