Public transport refers to buses, minibuses, trams, trains, cabs, ferries, airplanes ect. Most of them have their own routes and time tables to pick up and drop off people. Unfortunately, as the growth of people in cities becomes unbelievable, many problems arise. For example, people often can not be conveyed punctually. As a result, subways came into being in metropolis to avoid crashes and to reduce loads on the ground.,　　

　　公共交通指公共汽车、小型公共汽车、电车、火车、出租车、渡船和飞机等。它们大多有自己的路线和乘客上下车的时刻表。不幸的是，由于城市人口增长变得让人难以置信，很多问题产生了。例如，人们经常不能准时地被运送。因此，为了避免地面上的碰撞和减轻负担，地铁在大都市产生了。

　　加餐练(一)　完形阅读组合练

　　Ⅰ.完形填空

　　Ricardo Semler became boss of his father's business Semco in Brazil at the age of 21. Ricardo worked like a(n) __1__ man, from 7：30 am to midnight every day. One afternoon, while he was visiting a factory in New York, he __2__. The doctor told him if he __3__ like that, he would find a new home in hospital. Semler got the __4__. He changed the way he __5__. In fact, he changed the ways his __6__ worked, too.

　　He let his workers take more __7__ so that they would be the ones worrying when things went wrong. He __8__ them to set their own salaries, __9__ their own working hours and he cut all the jobs he thought were __10__， like receptionists and secretaries.

　　He changed the office: __11__ walls, they have plants at Semco, so bosses can't __12__ themselves away from everyone else. And the workers are __13__ to decorate their workspace as they want.

　　It sounds perfect, but does it __14__？ The answer is in the __15__： in the last six years, Semco's revenues (收入) have __16__ from $35 million to $212 million. The company has gone from eight hundred employees to 3,000. Why?

　　Semler says it's because of "peer pressure" which makes employees work __17__ for everyone else. If someone isn't doing his job __18__， the other workers will not allow the __19__ to continue. In other words, Ricardo treats his workers like adults rather than children, and expects them to act like responsible __20__. And they do.

语篇解读：本文是一篇记叙文。作为老板，只有让团队中的每个人都能自觉主动地承