e.g. Be careful when you cross this very busy street.

10. break away (from sb / sth) 脱离;破除…

e.g. It is not easy for him to break away from bad habits.

The man broke away from his guards.

break down (会谈)破裂，失败;(汽车等)出故障;(人的健康状况)变得恶劣;(情感)失控

e.g. His car broke down on the way to work this morning.

His health broke down under the pressure of work.

He broke down and wept when he heard the news.

Talks between the two countries have completely broken down.

Ø break in 闯入;打岔

Ø break off 中断，折断

Ø break into 闯入

Ø break out 爆发;发生

Ø break up 驱散;分散，拆散

11. as well as 不仅…而且;既…又…

e.g. He is a teacher as well as a writer.

The children as well as their father were seen playing football in the street.

12. convenience: n.方便;便利

e.g. We bought this house for its convenience.

convenient: adj.

13. attraction:

1). 吸引;引力(不可数 n.)

2). 吸引人的东西;喜闻乐见的东西;精彩节目(可数 n.)

e.g. attraction of gravitation 重力

He can't resist the attraction of the sea on a hot day.

A big city offers many and varied attractions.

What are the principle attractions this evening?

attract: v.

14. influence

1) v. 对…产生影响

e.g. What influence you to choose a career in teaching?

2)可数n. 产生影响的人或事

e.g. He is one of the good influences in the school.

3) (不可数n.) 影响

e.g. A teacher has great influence over his pupils.

Unit 3:

1. impression n. 印记;印象;感想;后接 of sb./ of sth./ on sb./ that 从句;

e.g. My first impression of him was favourable.他给我的第一印象不错。

I got the impression that they were unhappy about the situation. 我觉得他们不满于当时的状况。

知识拓展：impress v.给……留下深刻的印象;使铭记;使感动;常用结构有：impress sth. on/upon sb./impress sb. with sth.给……留下深刻的印象;使铭记;

It impressed me that she remembered my name.令我佩服的是她记得我的名字。

2. remind v.提醒;使想起;常用结构有: remind sb. to do sth.提醒某人做某事;remind sb.+(that)/wh-从句 提醒某人……;使某人想起……;remind sb. about/of sth. 使某人想起或意识到……;提醒某人某事

e.g. I'm sorry, but I've forgotten your name, can you remind me? 很抱歉，我记不起你的名字，你能提醒我一下吗?

You remind me of your father when you say that. 你说这样的话使我想起了你的父亲。

知识拓展：reminder n.提醒物;引起回忆的事物

3. constantly adv.始终;一直;重复不断地

e.g. Fashion is constantly changing.时尚总是日新月异。

知识拓展：constant adj.连续发生的;不断的;重复的;

4. previous adj.先前的;以往的;(时间上)稍前的

e.g. No previous experience is necessary for this job. 这一工作无需相关的经验。

I couldn't believe it when I heard the news. I had only seen him the previous day.听到这个消息时，我不敢相信;我就在前一天还见到过他。

知识拓展：previously adv. 先前的;早先

e.g. The building had previously been used as a hotel. 这座楼房早先曾用作旅馆。

5. bend v.(bent bent)弯曲;使弯曲;弯腰;弯身;常用搭配有: bend one's mind/efforts to sth. 致力于某事;bend sb.to sth. 迫使;说服 bend the truth 歪曲事实

e.g. It's hard to bend an iron bar. 把铁棒弄弯很不容易。

She bent her head and kissed her daughter. 她低下头吻了她的女儿。

6. press v. 压;按;推;挤;坚持;敦促 n. 报章杂志，新闻工作者，新闻界

e.g. She pressed a handkerchief to his nose. 她用手绢捂住鼻子。

She pressed down hard on the gas pedal. 她用力踩下油门踏板。

He is still pressing her claim for compensation. 他仍坚持索赔。

The press was/were not allowed to attend the trial. 庭审谢绝新闻采访。

7. switch n. & v. 用作名词表示“开关;转换”。用作动词表示“转换”。

e.g. She made the switch from full-time to part-time work when her first child was born. 第一个孩子出生后，她就由全日工作改为非全日工作。

Press these two keys to switch between documents on screen. 按这两个键就可以在屏幕上的文件之间进行切换。

I can't work next week, will you switch with me? 下个周末我不能上班，咱俩换个班好不好?

8. lack n. & v. 用作名词，表示：“缺乏;短缺”;用作动词，表示：“缺乏;短缺;没有;不足”。