5. be active in 积极参加

She takes an active part in school life.

The parents were active in campaigning against cuts to the education budget.

4. category 类别，种类

Students over 25 fall into a different category. 25岁以上的学生属于另一类。

The results can be divided into three main categories. 结果可以分成3大类。

引申：categorize/se 将。。。分类，把。。加以分类

Participants were categorized according to age. 参加者按年龄和性别分组。

His latest work cannot be categorized as either a novel or an autobiography. 他的近作既不属于小说也不属于自传。

3. demonstrate 证明，论证，表达，显露，示范，演示，示威(常用搭配：demonstrate +that /wh--/to do)

Let me demonstrate to you some of the difficulties we are facing. 让我来向你说明一下我们面临的一些困难。

His sudden departure had demonstrated how unreliable he was. 他突然离去，这说明他多么不可靠。

The theories were demonstrated to be false. 这些理论已被证明是错误的。

We want to demonstrate our commitment to human rights.我们向表明我们对人权的信念。

Her job involves demonstrating new educational software. 她的工作包括演示新的教学软件。

students demonstrating against the war. 举行反战示威游行的学生。

2. suggest 不用虚拟的用法

1. have …in common

20. overcome 克服，战胜

She overcame injury to win the Olympic gold medal.

The two parties managed to overcome their differences on the issue. In the final game Sweden easily overcame France

Integrating skills

19. adopt 收养，采用 (方法)；采纳(建议，政策等)

All three teams adopted different approaches to the problem. 三个队处理这个问题的方法各不相同。

The council is expected to adopt the new policy at its next meeting.委员会有望在下次会议上正式通过这项新政策。

18. rely on /upon 依赖； 依靠

These days we rely heavily on computers to organize our work.

[+ -ing] The industry relies on the price of raw materials remaining low.

You can rely on me to keep your secret.

He can’t be relied on to tell the truth

17. available 可获得的，可找到的，有空的

Tickets are available free of charge from the school. 学校有免费票。

When will the information be made available? 何时才能了解到情况？

Further information is available on request. 详情备索。

This was the only room available. 这是唯一可用的房间。

We’ll send you a copy as soon as it becomes available. 一有货我们就会给你邮寄一本去。

Every available doctor was called to the scene.所有能找到的医生都备召集到了现场。

Will she be available this afternoon? 今天下午她有空吗？

16. as far as

as far as the eye can / could see 极目所尽

The bleak moorland stretched on all sides as far as the eye could see.荒凉的旷野向四面伸展开去，一望无际。

as far as I know | as far as I can remember, see, tell, etc. 就我所知道，尽我所记得的，依我看。

As far as we knew, there was no cause for concern. 就我们所知，没什么可担心的。

As far as I can see, you’ve done nothing wrong. 依我看，你没有做错任何事。

She lived in Chicago, as far as I can remember. 据我所记得的，她过去住在Chicago。

as / so far as sb/sth is concerned　 |就。。。而言

As far as I am concerned, you can do what you like.就我而言，你想干什么就干什么。