人教版九年级Unit 13 We're trying to save the earth!-Section B 1a—1e-ppt课件-(含教案+视频+音频)-公开课-(编号：909ec).zip

Topic 21Topic 21 The world and the environment 世界与环境 1.Which is the largest country in the world? 2. Which country has the largest population? 3. Which is the strongest country ? Brainstorm Asia Russia Korea Japan India Canada America / the USA / the US Mexico North America I Europe England The UK Britain France Germany Australia New Zealand South America Brazil South Africa Africa Can you tell me the people in different countries? countrypeoplecountrypeople ChinaFrance JapanGermany KoreaAmerica IndiaCanada RussiaAustralia Britain Asia Europe Africa AsianEuropeanAfrican Chinese Japanese Korean Indian Russian British French German American Canadian Australian Review Which country do you like to travel to? Why? Sally and Bill also like traveling. Do you want to know something about their trip? Listen and answer 1.Who did Sally visit Australia with? A. Her friends. B. Her parents. C. Her sister. 2. What did Sally do in Australia? A. Studied English. B. Went to the zoo. C. Visited Sydney University. 3. What can we get from the conversation? A. The boy went to Shangrila by bus. B. The boy has been to Australia before. C. Australia is a good place to to study. Tips: Circle the key words before listening. Listen and answer the questions. 1.Who did Sally visit Australia with? A. Her friends B. Her parents C. Her sister 2. What did Sally do in Australia? A. Studied English B. Went to the zoo C. Visited Sydney University. 3. What can we get from the conversation? A. The boy went to Shangrila by bus. B. The boy has been to Australia before. C. Australia is a good place to study. Listen and answer the questions. Listen and answer the questions. M: Hi, Sally. How was your vacation? W: It was wonderful. I went to Australia with my parents. M: That sounds great. How did you go there? W: By plane. Its my first time to take a plane. M: What did you do there? W: We visited the Opera House and the largest zoo in Sydney. M: I have never been there before. What do you think of Australia? W: The environment is great. Besides, people there are very friendly. M: Did you take any photos there? W: Yes, here are some of the photos taken in Australia. M:Wow,how beautiful the scenery is ! I hope to travel there one day. W: What about your vacation, Bill? M: I took a bus to Shangrila with my friends. W: Thats also a wonderful place to visit. M: Would you bring some photos to school tomorrow? Id like to have a look. W: No problem. Can all the people live in such beautiful environment? Why or why not? How do you feel after you watch the video? What kind of pollution have you seen? What causes the pollution? landland pollutionpollution WaterWater pollution pollution 1 5 3 5 4 2 What causes the pollution? land land pollutionpollution WaterWater pollution pollution 1 3 5 4 1 What causes the pollution? land land pollutionpollution waterwater pollution pollution 1 5 4 What causes the pollution? land land pollutionpollution waterwater pollution pollution noisenoise pollutionpollution 4 land land pollutionpollution waterwater pollution pollution noise noise pollutionpollution The gas from cars does harm to the air. Waste smoke from factories is harmful to the air. do harm to/ is harmful to Burning coal does harm to the air. The land is polluted because people litter everywhere. The land is polluted because people cut down trees The land is polluted because farmers use too many chemicals. The land is polluted because- Rubbish makes the river and lake dirty. Waste water from factories makes the rivers and lakes dirty. Wasting water makes the clean water dirty. make- dirty The square dance is so loud that people cant have a good rest . Building houses is so noisy that people cant fall asleep at night. There are so many cars that it is noisy in the cities. so- that- What would happen if there is too much pollution? The earth is 4600 million years old. We humans have lived on earth for only 3500 years. But during this period we have done something harmful to our planet in many ways. As a result, There are many kinds of pollution around us. Air pollution. Burning gas, oil and coal create air pollution. It can cause sore eyes and breathing problems. Carbon dioxide(CO2) in the air has formed a blanket around the earth, the temperature is rising. This is called the greenhouse effect(温室效应). With the development of industry, millions of trees are cut down every year . Litter is everywhere. It makes our environment dirty. People put a lot of litter into the land. When it rains or blows, the earth is taken away. Forests become deserts. In the field, farmers use too many chemicals which pollute the soil. Land pollution cause danger on food safety. Water pollution is also serious. Some factories pour waste water into the rivers or lakes. More and more fish are disappearing. And many rivers and lakes are now dead. Noise pollution can make people deaf. For example, people may lose their hearing if they work in a noisy place for a long time. Too much noise can cause high blood pressure as well. All these problems are very serious, so we must do something now Para. 2 Kinds of pollution around us. 3 6 What is the main idea of the passage? Fast Reading A. Water pollution. B. Noise pollution. Para. 2 Para. 3 Para. 4 D. Land pollution. Para. 5 C. Air pollution. 6 What is the main idea of the paragraphs? Scanning Pollution make people deaf Problems 1. _. 2. _. Problems 1. _. 2. _. Problems 1. _. 2. _. Problems 1. _. 2. _. Air pollution Noise pollurion Water pollution Land pollution cause sore eyes and breathing problems the greenhouse effect Forests become deserts cause danger on food safety. Fish are disappearing Rivers and lakes are dead. cause high blood pressure What can we do to fight against pollution? recycle A: What should we do to fight against pollution? B: Wed better recycle and reuse waste water. A: What should we do to fight against pollution? B: We can / could /should We had better We are supposed to Why not What about Doing is a good way to recycle “雾霾(smog)”人们谈之色变，因为雾霾，人们身体健康受到了威胁, 因为雾霾，人们的心理也受了影响。如果你是李华，你的笔友Bill想了 解雾霾情况。请根据下面方框里的内容写一封回信并就我们该如何来 保护地球谈谈你的看法。 注意:（1）所写内容必须包括表中各方观点并进行合理拓展，可以适当 增加细节，要求意思连贯、语句通顺； (2)不少于80个词，短文的开头已给出（不计入总词数）。 Dear Bill， Im glad to receive your letter. Let me tell you about the smog in China. Dear Bill， Im glad to receive your letter. Let me tell you about the smog in my city._ _ _ _ _ _ _ _ _ _ _ _ _ _ How to write a good article ? Writing strategies(写作策略)： 1. Tense and person 3. Use linking words(连接词); 4. Use different sentence patterns. Body: _ paragraphs3 What causes smog._ Smog brings lots of danger_ What should we do to make the environment_ Writing timeWriting time 2.Write in paragraphs(分段写)； Dear Bill， Im glad to receive your letter. Let me tell you about the smog in China. Smog is mainly caused by air pollution. Cars and factories pour waste smoke into the air. It does harm to the environment. Smog brings lots of danger. It can cause heart diseases and breathing problems. Whats more, because the heavy smog, many traffic accidents happened and some people got injured and some even lost their lives. Now we are doing our best to stop smog. Our actions can make a difference to the environment. We cant litter everywhere. Wed better go to school by bus or by bike instead of taking cars. And we should plant more trees to clean the air. With our effort, Im sure we can save the air we breathe every day. Hope to hear from you soon. Yours Li Hua 1.Write down the environmental changes in your neighborhood . 2.Finish the exercises in the workbook. 1 教材分析教材分析 教学内容分析：教学内容分析： 本课时为九年级总复习中的话题复习课，主要是通过复习国家和环境相关的单词和句型，通过环境优美地 区和环境污染地区的对比，让学生认识到环境污染的成因、环境污染的危害，从而认识到保护环境的重要性。 通过语言部分以及交际功能的学习，引导能运用不同的英语句式进行表达.学生在交流与表达、复习和运用中掌 握英语知识，从而学会分析问题，解决问题。增强自觉保护环境。最后学生写关于 Smog 的书面表达，为学生 提供了进一步语言输出的机会，也对本话题内容进行再次巩固运用，提高学生的综合语言运用能力。 学情分析学情分析 经过两年多的中学英语学习，学生们已经积累了一定的语言知识和话题基本句型，本话题主要是加深和运 用，通过环境先后对比的视频和图片，唤醒了孩子们已有的知识，提升整合教材内容，通过听说读写训练，提 高学生的综合能力，也有利于培养学生的学习兴趣。 教学目标教学目标 1、语言技能目标语言技能目标 （1）使学生复习并熟练掌握国家和民族的单词。 （2）通过听力训练，口语训练，阅读训练和写作训练，了解环境对人们的影响，提高学生的语言技能。 2、语言知识目标语言知识目标 （1）Words：China, Chinese，Korea, Korean, Japan, Japanese, India, Indian, Russia, Russian, Asia, Asian 等国家国 民单词 （2）Drills: What causes the pollution? What would happen if there is too much pollution? What should we do to fight against pollution? 3、情感态度目标情感态度目标 (1)培养学生自觉保护环境。 (2)使学生更加热爱生活，热爱自然。 (3)能在小组活动中积极与他人合作，发扬合作协作精神。 教学重点和难点教学重点和难点 教学重点：教学重点： （1）重点单词：China, Korea, Japan, India, Russia，Asia, England，The UK，Britain， France，Germany, Europe, Australia, New Zealand, Brazil, America, Canada, Mexico, South Africa,等国家单词和与之对应的国民单词。 重点句型：1. The land is badly polluted because people litter everywhere. 2. Rubbish makes the river and lake dirty. 3. There are so many cars that it is noisy in the cities. 等造成环境污染的原因及句式运用。 4. We can / could /should 5. We had better 6. Its our duty to do - 等提建议方法的运用于交际 和写作。 教学难点：教学难点： （2）能够运用本节课所学句型正确的表达造成污染的原因并对保护环境提出建议。 （3）熟练运用所学知识以及写作方法进行写作。 教学方法教学方法 1、 任务型教学。 2、利用小组合作、小组讨论。 2 教学过程教学过程 教学环教学环 节节 教师活动教师活动 预设学生行预设学生行 为为 设计意图设计意图 Step1 Lead in 1.Show students a map of the world. 2. 教师提问: Which is the largest country in the world? Which country has the largest population? Which is the strongest country ? Do you think China will be the strongest one in the world? Lets try our best to make it be the strongest. S:I think the largest country is Russia. China. America Yes, Lets try our best. 通过提问世界的三个 之最，使学生更快的进 入角色；通过询问你认 为中国会成为世界上最 强大的国家吗？提出咱 们尽力使祖国实现最强 大 的目标。对学生进 行爱国主义教育。 Step 2 Review 1.Show the main countries learnt in the junior high school. 2.Have a competition: Which country is it? Revise the words of countries. 3.Can you tell me the people in different countries? 4.Please say out the words of people. 5.Read them aloud. S: China, Korea Students revise the country words. S: Chinese, Korean Students revise the words of people. 通过呈现地图，让学 生更直观的说出国家和 民族的单词,唤醒学生 已有的知识，利用小组 竞争的形式，激发学生 的学习热情，调动学生 的积极性。 Step 3 Listen 1.听力前情景设置： Do you like traveling? Which country do you like to travel to? Why? Because the people are friendly and the environment there is great. Lily also likes traveling. Listen to the tape and answer the questions. (1).Who did Sally visit Australia with? A. Her friends B. Her parents C. Her sister (2). What did Sally do in Australia? A. Studied English B. Went to the zoo C. Visited Sydney University. (3). What can we get from the conversation? A. The boy went to Shangri-La by bus B. The boy has been to Australia before. C. Australia is a good place to study. 2. 听前策略的指导：Circle the key words before listening. 3. Listen and check answers. 4. Read the conversation aloud. 5.Enjoy the pictures or Australia and Shangri-La. 1.S:I want to go to - - because the people are friendly and the environment there is great. 2. Listen to the tape and then check the answers. 3. Read the conversation aloud. 4. Enjoy the beautiful pictures of the two places. 通过设置世界与环境 话题的听力练习，巩固 学生对本课重点单词的 掌握和运用，并且提高 学生的听力能力，更好 的掌握语言。 听前指导学生进行听 力预测，降低听力的难 度。 朗读提高学生的口语 能力。 利用澳大利亚和中国 香格里拉两个环境优美 的典型地点，让学生感 情到环境对人们心情的 重要性。也能提高学生 审美情趣。 3 Step4 Practi ce 1.Ask： Can all people live in such beautiful environment? Why or why not? 2.Watch a video abut pollution. Ask: How do you feel after watching the video? What kind of pollution have you seen? What cause the pollution? 3.Have a competition about the four kinds of pollution. Ask student make sentences with different sentence structures. S:No, because the earth is badly polluted by people. S: I feel sad. air pollution , land pollution, water pollution, noise pollution. 2.Say out the causes of pollution with do harm to/is harmful of; The land is badly polluted because /makedirty” 通过视频过渡到本话 题中有关污染的知识， 让学生思考造成污染的 原因，提高对污染的认 识，巩固本节课的单词 和句型，还能增强学生 的口语表达能力。利用 小组竞赛的形式提高学 生的积极性和趣味性。 疏导学生运用不同句式 表达，又复习了写作中 能运用的重点句型。 Step5 Readi ng 1. 老师引出：What will happen if there is too much pollution? 2. Read the passage and find the answer. Whats the main idea of the passage? What is the main idea of the 4 paragraphs? Find out the problems of each kind of pollution brings us. Read the passage and answer the questions. 通过阅读训练，进 一步的巩固学生对本 课重点内容的掌握， 训练学生的能力，有 利于学生的全面发展。 引导学生思考污染带 来的危害，从而提高 学生自觉保护环境， 从而提高学生的核心 素养。 Step6 Pair work 教师引出： We know Pollution is harmful to human beings. What can we do to fight against it? 运用以下句型表达方式,教师下到学生中间去指导。 A:What should we do to fight against pollution? B: We can / could /should We had better We are supposed to Why not Its our duty to A: What should we do to fight against pollution? B: Wed better recycle and reuse waste water. Practice in pairs and then act it out. 通过让学生进行对 话训练,不仅可以巩固 好本节课学生的重点 句型,还能增强学生的 口语表达能力和合作 意识，发散学生的思 维。通过大量的输入 词句输入，为后面的 写作做好铺垫，同时 让学生参与到环保行 动中来。 4 Step 7 Writin g T:Suppose you are Li Hua, your pen pal Bill wants to know about the smog in some big cities in China. Write an email to him and then tell how to protect the earth. Teach students about the writing strategies. Students write the email and then read out their compositions. 学生通过听、说、 读的训练进行了大量 的输入，继而学生能 够根据思维导图进行 写作,再一次的巩固学 生对本话题的词句文 的灵活运用，培养学 生语言的综合运用能 力。 对学生进行写作方 法的指导，培养学生的 写作技巧，提高学生的 写作能力。 Step 8 Homew ork 1.Write down the environmental changes in your neighborhood . 2.Finish the exercises in the workbook. Finish the topic homework. 课后练习巩固，并 通过练习来了解学生 对本节课的掌握情况。 板书设计板书设计 Topic 21 The world and the environment 学生学习活动评价设计学生学习活动评价设计 评价方法：评价方法： 小组评价和自我评价结合。充分调动学生的积极性，参与到课堂中来。 教学反思教学反思 评价内容：评价内容： 本课对教材和学情做了深入的分析，设计上思路非常清晰，由浅入深，由易到难。从词句段文。教师 带着学生一步一个脚印，渐渐近入任务，让学生非常轻松地掌握本话题的内容。任务的设计贴近学生生活，有 趣又实用，学生的参与很热烈。从环境优美到环境污染再到环境保护，本节课重难点突出并训练到位，通过对 话、听力、仿照句型造句、阅读和写作等多种练习方式，使话题内容得到全面梳理，大部分学生能够运用自如。 在听力、阅读和写作训练中突出学习策略的渗透，在学生口语操练的时候，教师给出适当的指导和示范，对学 生的模仿学习起了个较好的作用。不足的是在教学过程中老师出现少部句子口误或笔误。 4