4.They can also stop under a stone arch and watch the hutong world go by while enjoying a plate of Beijing's best "Peking Duck" or satisfying their thirst with a cold Tsingtao beer.

他们还可以在石拱门下停留，享受一盘最好的北京烤鸭或一杯解渴的冰镇青岛啤酒的同时，望着这胡同世界缓缓而过。 状语从句的省略。 I witnessed a terrible car accident while_walking_in_the_street.

在街上行走时，我目睹了一次可怕的事故。 　　

　　1．(教材P36)Nobody has any desire to show off ...

　　没人有炫耀的欲望......

　　show off炫耀，夸耀

　　show sb. around/round　　 带某人参观

　　show up 到达，出现；显现出来

　　show sb. in/out 领某人进来/出去

　　①This is your chance to show off your talents to the people interviewing you.

　　这可是你向面试考官展现你才能的好时机。

　　②It was getting late when she finally showed_up.

　　天色已晚，她终于赶到了。

　　③We were_shown_around the school by one of the students.

　　我们由一名学生领着参观了学校。

　　④Thank you for your coming to see me; my secretary will show_you_out.

　　感谢你来看我，我的秘书会送你出去的。

　　2．(教材P36)There is a leader in each area of the town and each town has an elected leader.

　　城镇里的每个地区都有一个领导人，每个城镇都有一个选出来的领导人。

　　elect v．推举，推选

　　elect sb. (as) ... 推选某人为......

　　elect sb. to ... 选举某人担任(某职务)(to为介词)

　　elect to do sth. 选定/决定做某事

　　①We elected her to the board of education.

我们推选她担任教育委员会的委员。