Unit 1 The Changing World-Topic 3 The world has changed for the better.-Section A-ppt课件-(含教案)-市级公开课-仁爱科普版九年级上册(编号：c24d3).zip

Unit 1 The Changing World Topic 3 The world has changed for the better. Section A 1Teaching aims: 1.some words and phrases:block,artist, visitor, industry, chemistry, term, as a matter of fact,millions of, be/get used to doing sth, used to do sth, 2.some sentences: （1）.You will get used to it very soon if you come. （2）.As a matter of fact, its a wonderful place to live. （3）.You must come for a visit. （4）.Then you can see new York yourself. .（5）How much do you know about the traffic in New York? （6）.Do you have any ideas about the streets there? 3.Use the Present Perfect Tense with for and since （1）.You have been in New York for a long time （2）.The city has improved a lot since i came here a few years ago. 二Teaching Plan 教学方案 Step 1 Review 第一步 引导学生用现在完成时 谈论北京的变化，引出for 和 since 的用法及部分 短语，并导入新课。 用多媒体或图片展示几组北京过去和现在的画面， 让学生观看、讨论北京的变化，引出纽约的变化。 Have you ever been to Beijing? How much do you know about Beijing? Do you have any ideas about Beijing? T: Beijing has changed a lot. Who can describe it?出示 过去北京城的图片 S1: The houses were small and the streets were narrow in the past. T: Youre right. Who can describe this picture? 出示 现在北京城的图片。 S2: There are lots of tall buildings in Beijing now. S3: More ring roads. S4: People can enjoy more sorts of leisure activities. T: Well done! The changes have taken place not only in China but also in the world. Now lets listen to the tape to know about the changes in New York. Step 2. 第二步。Presentation 1.听录音后，回答教师的问题。 Is New York a wonderful place to live? Yes, it is. Has Helen ever been to New York? No, she hasnt. T:Is New York a dangerous place now? S3: No, it isnt. It was dangerous in the past. T: Is New York a wonderful place to live now? S4: Yes, it is. T: Good. As a matter of fact, there are beautiful parks, good schools, famous museums and excellent restaurants now. And you can go to plays, concerts and operas every day if you like. If you want to know more about New York, you must come for a visit there. Do you want to go there? Ss:Yes. Of course. T: I hope you have chances. Now lets read after the tape. 2.教师播放录音，学生跟读一遍 3.Practice in groups 学生练习对话 4.呈现 1a 内容，然后让学生自己观察文中含有 for, since 的句子，归纳 for, since 的用法，教师 作适当讲解并要求学生掌握。 He has stayed there for about two weeks. You have been in New York for a long time. Great changes have already taken place since 1984. The city has improved a lot since I came here a few years ago. 5. 引导学生观察上述句子，分析for 与 since 的 区别。帮助学生总结for 与 since 的用法并要求 初步掌握。 Then complete the sentences with since or for and listen and check. 1. You have been in New York _ a long time. 2. The city has improved a lot _ I came here a few years ago. 6.再读 1a 找到并画出 重点句及短语： 1.You have been in New York for a long time. 2.You will get used to it very soon if you come. 3. They used to be, but the city has improved a lot since I came here a few years ago. 4. As a matter of fact, its a wonderful place to live. 5. You must come for a visit. 6. Then you can see New York yourself .阅读 1a，完成 1b，要求他们根据1b 内容把 1a 改写为一篇短文并复述，然后完成1c，巩固 for, since 的用法。给学生几分钟，然后读范文 Fill in the blanks,according to 1a Bob _ New York for a long time. He thinks its _ and he really _ it. But Hellen heard that the local traffic_, the streets _. Bob says the city _ a lot _ he came here a few years ago. _, its a wonderful place to live. There are beautiful parks, good _, famous _ and _ restaurants. You must come for a _.Then you can _ New York _. Step 3 Listen to the passage and fill in the blanks with the correct forms of the given words or phrases .听录音后，师生共同核对答案。 Broadway is a street in New York . It has been there_1811. It _ be dirty. But it _ since the 1920s. The area near Times Square is the home of Broadway theaters . There have been many famous_ along the street for many years . A lot of artists perform plays , concerts and operas there . Every year millions of visitors come to enjoy the _ music and dance on Broadway . _ , Broadway stands for the American theatre industry . Step 4 第四步 Work in groups and talk about the place you live. Compare todays situation with that of the past. The following dialogs may help you. A:I have been in for /since B: How do you like living there ? A: It is / Very good. /I really B: Was the local traffic terrible /good/? A: Yes./No, it was / used to be in the past, and now it is B: Step 5 第五步 Homework: 教师布置一项课后作业，激发学生兴趣。