perform a part 扮演一个角色 perform (vi.) well in 在......中表现很好

(2) performance n．演出，演奏；执行，履行

give a (put on) performance 演出

例句：The seals performed well at the circus. 在马戏团里，海豹表演得十分精彩。

　　　In the play he performs the part of a policeman. 在这出戏中，他扮演一个警察的角色。

　　　She performs an important role in our organization.她在我们的组织中发挥着重要作用。

　　　They will give a performance/put on performances at the theater.他们将在那家剧院演出。

【链接训练】

① After they have been elected，many senators can not actually _____ what they promised in the election.

A．perform B．practise C．carry D．experience

② -Jenny，why are you still here？You should be on the stage ________ now.

　-I'm afraid I won't have a good ________ tonight.

　A．performing；performance 　 B．perform；perform

　C．performing；perform 　 D．perform；performances

2．advantage n．[C] 优点，有利条件；[U] 优势

归纳拓展

　take (full) advantage of(充分)利用 to one's advantage＝to the advantage of sb.对某人有利

　be of advantage to对......有利 gain/win/have an (the) advantage over胜过，优于

　be at an advantage有利的，占优势

　反义词：disadvantage不利条件

例句：He always takes full advantage of the mistakes made by his rivals.

　　　他总是充分利用对手的失误。

　　　It would be to your advantage to prepare questions in advance.

　　　事先把问题准备好肯定会对你有利。

　　　They had a major advantage over their better known rivals－they were cheaper.

　　　他们和对手相比有个明显的优势--产品更便宜。

【链接训练】

Haven't you learned of the advantage you should ____ other's weak points in order to