Unit 4《Public transport》Welcome to the unit Reading 课件（译林版选修7）.ppt

【即学即练】During the rush hours the roads are usually____ up with traffic. A. choked B. crowded C. blocked D. checked 【解析】选A。考查动词词义辨析。句意：在交通高峰期，路上通常满是车。be choked up with 塞满，塞住，符合句意。 3. authority n．权力，权威; 官方，当权者；批准，授权 ①The Underground Electric Railways Company of London，the Metropolitan Line and all the different bus and train lines were placed under the authority of the Board. 伦敦电力地铁公司，大都会线路，所有不同的公交车和火车线路都是在委员会的批准下设定的。 ② He could cut through disputes with his authority. 他可以运用他的权威像快刀斩乱麻一样解决纠纷。 【拓展】authority on 有关……的权威；……的专家 be in authority 主管 have authority over (或with) 对……有权力 the authority for. . . /to do 做……的权力 on the authority of 根据……所授的权力；根据(某 人或某书)；得到……的许可 ③ He was widely regarded as a leading authority on nutrition. 人们普遍认为他是营养学方面的著名权威。 ④Teachers should have great legal authority over their students. 老师应该在学生面前有合法的权威。 ⑤Who gave you the authority to do this? 谁给你权力这样做的? 【即学即练】(2012·郑州高二检测)You can impress your leaders with your sense of responsibility and initiative, so that they will give you the _____ to do what you want to. A. assumption B. reference C. route D. authority 【解析】选D。考查名词辨析。句意：……以便于他们给予你做你想做的事情的权力。authority权力，符合句意。 assumption假设；reference参考； route路线。 4. function as 用作; 起……作用(=serve as) ①When London was bombed, many underground stations functioned as bomb shelters. 当伦敦被炸弹炸了之后，许多地铁站被用作避难所。 ② However different they are designed, pens should function as a tool to write with. 无论设计得多么不同，钢笔都应该用作书写的工具。 【拓展】function v. (尤指事物)活动运行；发挥作用 n. (人的)职责；(事物的)作用，职能, 机 能，功能 ③Your body will not function well，if it is not healthy enough. 如果你的身体不够健康，它就不能正常运行。 【想一想】表示“连接”的表达方式还有哪些？试举例。 【拓展延伸】 join. . . to. . . 把……与……连接 connect. . . with/to. . . 把……与……相连接 associate. . . with. . .