7. perform v. 演出，表演；履行；工作，运转 n. performance / performer

　　　　　　　perform a trick 表演戏法

　　　　　　　perform an experiment/ an operation 做实验/手术

　　　　　　　perform one's promise 履行诺言

　　　　　　　perform well/ badly 表现好、差

perform a role in... 在......中发挥作用

give/ put on a performance 表演，上演

8. come up with 想出；拿出 （不用被动语态） 近义词组：put forward 提出

　come up with a good idea 想出一个好主意 come up with the money 拿出钱

9. amuse vt. 使......娱乐，逗笑，提供（消遣）

amuse sb (with sth/by doing )

He amused the boy by telling him a story.（讲故事来逗乐那个男孩）

amused adj. 开心的，好玩的

be -d at/ by 以......为乐 be -d to do sth. 做......取乐

keep sb. amused 使某人快乐

Playing with water can keep children amused for hours. 使孩子们玩乐几个小时。

amusing adj. 有趣的，可乐的 an amusing story/ game

amusement n. U 娱乐，消遣 C 快乐的事，娱乐，常用复数

　（much/ greatly）to one's amusement 使......感到很有趣的是,

amusement park 游乐场

10. saying n. 格言，谚语，警句

"Accidents will happen", as the saying goes. 俗话说："意外事，总难免。"

There is a saying that goes.../ The saying goes that... 俗话说

11. strengthen v. ~ the bridge 反义词： weaken

n. strength