act as 担任...职务 起....作用
act out 表演（对话、故事等）; 履行（仪式）；将…表演出来; 充当（真实情况中的角色）
act for 代理（某人职务）；代为（处理某事）
act up 捣乱；出毛病
clean up one’s act 改邪归正；重新做人
1) act as 担任...职务 起....作用
The United Nations will act as guarantor of the peace settlement.
联合国将充当和平解决方案的保证人。
He acted as secretary to the board.
他充任委员会的秘书。
He acted as arbiter.
他充任仲裁人。
Hopefully his punishment will act as a deterrent to others.
对他的惩罚但愿能起到杀一儆百的作用。
Financial institutions act as intermediaries between lenders and borrowers.
金融机构充当贷方和借方的中间人。
The tough new law should act as a deterrent.
这项严厉的新法将起到威慑作用。
High marginal tax rates may act as a disincentive to working longer hours.
高额的边际税率可能会对加班起到抑制作用。
The story should act as a warning to other prospective buyers
这篇报道应该对其他潜在的购买者起到警示作用。
He will act as a go-between to try and work out an agenda.
他将从中斡旋，以尽力制订出一个日程表。
A warmhearted man acted as a go-between for him and introduced him to a girl.
一个热心人牵线搭桥给他介绍了一位姑娘。
She wanted him to act as an intermediary in the dispute with Moscow.
她想让他充当中间人来调解与莫斯科的争端。
Daniel tried to act as peacemaker.
丹尼尔想做调停人。
I'm not staying as a paid lackey to act as your yes-man.
我不要再做拿钱任你使唤的应声虫。
I asked my boss to act as a go-between.
我请我的老板当中间人。
A trained dog can act as a guide to a blind person.
经过训练的狗能担任盲人的向导。
My previous boss will act as a reference for me.
我的前任上司将做我的推荐人。
The new tax laws should act as a stimulus to exports.
新税法应该能促进出口。
He acted as grand marshal of a stock car race.
他担任过改装赛车大赛的主持人。
He acted as a frontman for a drugs cartel.
他给一个毒品集团当掩护。
Officer Nancy acted as a decoy to catch the rapist.
警官南希充当诱饵来抓捕那名强奸犯。
The bush acted as a cushion to my fall.
矮树丛缓冲了我的下跌。
Can you act as interpreter?
你能担任口译(翻译)吗？
2）. act out 表演（对话、故事等）; 履行（仪式）；将…表演出来; 充当（真实情况中的角色）；
The ritual of the party conference is acted out in the same way every year.
该党的大会程序年年照行如仪。
The children started to act out the whole incident.
孩子们开始表演整个事件。
I used to come home and act out the movie for the kids.
以前到家后，我会把电影内容再表演给孩子们看。
Get pairs of students to act out the dialogue in front of the class.
叫学生两人一组在课堂上演出这个对话。
She acted out the role of the wronged lover.
她扮作一个受冤枉的情人。
Many a mother tries to act out her unrealized dreams through her daughter
有许多母亲都试图在女儿身上实现自己未竟的梦想。
act out of(from)行为出自于，行为缘于
He acted out of jealousy.
他那样做是出于吃醋。
He acted out from jealousy.
他这样做是出于嫉妒。
He acted out of expediency, not principle.
他的行为是出于权宜之计而非原则。
3）act for 代理（某人职务）；代为（处理某事）
I have authorized him to act for me while I am away.
我已授权他在我外出时代理我的职务。
I give you full power to act for me.
你全权代我处理。
He authorized me to act for him while he is abroad.
他授权我在他出国期间代行他的职务。
In my absence the assistant manager will act for me.
我不在时由经理助理代理我。
4）. act up 捣乱；出毛病
The kids started acting up.
孩子们开始调皮捣蛋起来。
How long has your ankle been acting up?
你的脚踝受伤多久了？
She was messing with the coffee pot, which was acting up again.
她正在鼓捣咖啡壶，那壶又坏了。
I could hear Jonathan acting up downstairs.
我能听见乔纳森在楼下撒泼。
5）. clean up one’s act 改邪归正；重新做人
He cleaned up his act and came off drugs.
他已改邪归正戒掉了毒品。
