Unit 4 SectionⅠ Welcome to the unit Reading课件（牛津译林版选修7） .ppt

an underground station was used as a centre for directing the defence against air attacks, and the station nearest the Prime Minister’s house was used by the Prime Minister as meeting rooms for the administration of government. After World War Ⅱ ended in 1945, more people travelled on the underground，so the system was enlarged and more lines were added, including the Victoria Line, which was linked with other lines at almost every station. This helped make the system more user-friendly. The last line added was the Jubilee Line，which was opened in 1979 in honour of the twenty-fifth anniversary of Elizabeth II becoming the queen. The London underground system is working to transport huge numbers of people as it has done for many years. Over three million people travel on the underground every day. The network of the underground system includes twelve lines and now goes twenty-six miles out of central London. So, why not take a trip on the oldest underground system today? Visit our ticket office and buy one of the travel cards that permit you to travel all over the underground system. 地铁系统在二战时期发挥了一些特殊用途。 当伦敦被轰炸时，许多地铁站起到了防空洞的作用。一条新建的地铁线被用作地下飞机制造厂，一个地铁站被用作反空袭指挥中心，离首相住所最近的地铁站被首相用作政府行政会议室。 1945年二战结束后，更多的人乘坐地铁， 于是地铁系统得被扩建，增加了更多的线路。其中包括维多利亚线，它所有的站几乎都与其他线路相连。这有助于使地铁系统更加便于使用。最后增加的一条线路是朱比利线，于1979年开通， 以纪念伊丽莎白女王二世登基25周年。 正如许多年来它已经做的那样，伦敦地铁还在为运载大量乘客而运转着。每天都有三百多万人乘坐地铁。整个地铁网络包括12条线路， 现已延伸到距离伦敦中心26英里以外的地区。那么，今天为什么不乘坐世界上最古老的地铁观光一番呢？到我们的售票处看看，并购买一张旅行卡吧，很多卡让你可以畅游整个地铁系统哟。 * 自我探究 “Why not do...？”是“Why don’t you do...？”的省略形式，意为“为什么不……？”，是表示建议的常用句型。 归纳拓展 表示“建议”的常见句型： Why not do...？为什么不干……？ Why don’t you do...？你为什么不……？ Let’s do...让我们干……吧。 Shall we do...？让我们干……，好吗？ Would you like to do...？你想要干……吗？ Will you please do...？请你干……，好吗？ What(How)about doing...？干……怎么样？ I suggest that sb.(should)do sth.我建议某人做某事。 You’d better(not)do...你最好(不)干…… 【注意】　其肯定式是“Why do...？/Why do you do...？”，这两个句式常用于表示责问，意为“为什么……？”。 ③Why do you/Why lend him the money? 为什么要借钱给他？(表示责问) 牛刀小试 单项填空 (1)—It’s a long time since