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首页>英语>教案>《Unit 2 Saving the Earth》Topic1 SectionA 教案(仁爱英语九年级上)

《Unit 2 Saving the Earth》Topic1 SectionA 教案(仁爱英语九年级上)

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资料类别:  英语/教案 所属版本:  仁爱英语
所属地区:  全国 上传时间:  2011/10/17
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Unit 2 Saving the Earth Topic 1 Pollution is harmful to people’s health. SectionA The main activities are 1a, 1b and 3a. 本课重点活动是1a、1b和3a。 Ⅰ. Teaching aims and demands 教学目标 1. Learn some new words and phrases: bee, my goodness, waste, stream, breathe, be harmful to, influence 2. Learn some useful sentences: (1) Oh, my goodness! (2) Look, there are several chemical factories pouring waste water into the stream. 3. Learn direct speech and indirect speech: (1) Kangkang said that it was a beautiful place with flowers and grass. (2) Kangkang said that the flowers and grass had gone. 4. Learn and talk about different kinds of pollution: (1) Air pollution makes people sick. (2) Light pollution is harmful to our eyes. (3) Litter influences our environment. Ⅱ. Teaching aids 教具 幻灯片/小黑板/录音机/图片 Ⅲ. Five-finger Teaching Plan 五指教学方案 Step 1 Review 第一步 复习(时间:3分钟) 回顾第一单元有关家乡变化的内容,运用现在完成时态,导入新课。 (通过对第一单元的复习,导入被污染的西山景象。) T: Last unit, we have learned some changes in our hometown. Can you say some? S1: The roads are wider. S2: The buildings are higher and higher. S3: The living conditions have improved… S4: … T: Yes. Many changes have happened in our hometown. Let’s look at the two pictures about the West Hill and discuss the changes between them. Step 2 Presentation 第二步 呈现(时间:15分钟) 通过比较1a的两幅图画的差异,展开对话,学习部分生词,呈现1a。 1. (利用幻灯片展示1a中的两幅图,师生问答。) T: Are there any differences between them? Ss: Yes. T: Let’s look at Picture 1. What can you see? S1: I can see some flowers and grass. S2: I can see some butterflies dancing. T: Yes, there are some butterflies dancing. (板书并要求学生掌握。) there is/are … doing sth. T: What else can you see? S3: I can see a rabbit. S4: I can see some houses. S5: … T: (指着蜜蜂。)What’s it? Ss: 蜜蜂。 T: It’s a bee. There is a bee flying. (板书并要求学生掌握。) bee T: (指着小溪。) What’s it? Ss: 小溪。 T: It’s a stream. And there are some fishes swimming in the stream. (板书并要求学生掌握。) stream T: We know the West Hill was a beautiful place. Look at Picture 2. Oh, my goodness! What has happened to the West Hill? (板书并要求学生掌握。) my goodness S6: The rabbit has disappeared. S7: The fish have died. S8: The trees have died. S9: There are no flowers, butterflies, grass, and so on. S10: There are some factories. T: (指着工厂。)Yes, there are several factories. They are chemical factories. (板书并要求学生理解。) chemical T: (指着工厂冒的黑烟,并捂住鼻子做呼吸困难状。) They are making much smoke. It can cause breathing problems. (板书并要求学生掌握。) breathe T: (指着排放的废物。)And they are pouring waste water into the stream. (板书并要求学生掌握。) waste T: From Picture 2, we know the chemical factories are harmful to the animals and plants. (板书并要求学生掌握。) harmful be harmful to 2. (要求学生不看书,只听录音,捕捉要点,回答问题,提高听力水平。) T: Close your books. Listen to the tape carefully, then answer these questions. (出示小黑板上的问题,听录音1a。) (1)Where are they going to have the picnic? (2)Why does Kangkang say “Oh, my goodness!” ? 3. (核对答案,板书1a的关键词。) beautiful—fresh—clean—gone—dirty—terrible—waste water Step 3 Consolidation 第三步 巩固(时间:12分钟) 复述1a,引入本课重点,讲解和操练“直接引语”与“间接引语”,完成1b。 1. (要求学生在限定时间内,根据黑板上的关键词复述对话。) T: Try to use the key words on the blackboard to retell 1a. Example: In the past, the West Hill was a beautiful place with flowers and grass. We could see bees and butterflies dancing. The air was fresh, the water was very clean and we could see fish swimming. But now, all the flowers, grass, bees, butterflies and fish have gone. The water is so dirty and it smells terrible. Why? Because there are several chemical factories pouring waste water into the stream. So we should protect the environment. 2. (引入语法“直接引语”和“间接引语”。要求学生根据1a回答教师的问题。) T: What did Kangkang say? (要求学生轮流回答。) S1: I’ve been there before. T: Yes. Kangkang said that he had been there before. T: Next, please. S2: It’s a beautiful place with lots of flowers and grass. T: OK. Kangkang said that it was a beautiful place with lots of flowers and grass. T: Next, please. S3: The air is fresh and the water is clean, and you will see … T: So Kangkang said that the air was fresh and the water was clean, and they would see … (板书以上三个画线句子,要求学生将板书与1a中的原句对比找出不同之处,教师引导和补充。学习“直接引语”和“间接引语”。) Kangkang said that he had been there before. Kangkang said that it was a beautiful place with lots of flowers and grass. Kangkang said that the air was fresh and the water was clean, and they would see … 3. (让学生完成1b,并作报告。) T: Fill out the table in 1b, then give a report, using “Kangkang/Maria said …”. Step 4 Practice 第四步 练习(时间:10分钟) 通过听力训练,引出污染的概念,充分调动学生的积极性,加深对各种污染及其危害的理解,完成2和3b。 1. (播放2录音,学生听后完成2。) T: We know, without plants and animals, the West Hill isn’t beautiful. So plants and animals are important. Let’s look at the lovely animals in the pictures in 2. Listen to the tape and write down the numbers of the correct pictures. (若学生没听懂,可再放一遍,核对答案。) 2. (学生看图完成3a。) T: After listening, do you know what does great harm to animals? Ss: Pollution. T: Yes. There’re many kinds of pollution. Let’s look at the pictures in 3a and match them with the phrases given. Try to guess the meaning of soil. (板书并要求学生理解。) soil (核对答案。) 3. (让学生用3a的短语完成3b。) T: Pollution has caused many problems. What problems has it caused? Please complete 3b with the phrases in 3a. (核对答案,并板书influence,要求学生掌握。) influence Step 5 Project 第五步 综合探究活动(时间:5分钟) 通过游戏及调查的方式,加深学生对污染及其危害的印象,增强学生的环保意识。 1. Guessing games. (教师让一学生到讲台,从3a所提供的有关污染的图片中任取一张,正面面向全体学生,背面面向自己。台下学生描述图片上的内容或引起的污染问题,让台上的学生猜出该种污染的名称。) T: Every one of you can describe the picture. And the student in the front of the classroom tries to tell us what kind of pollution it is. Example: (S1任意抽取一张图片。) S2 : It’s produced in a factory. (教师帮助学生描述。) S3 : It smells terrible. S4 : It’s harmful to our lungs. S5 : It’s black smoke. S1 : Air pollution. … 2. Homework: Make a survey. (调查你们家附近的污染状况,并填写表格,以增强学生的环保意识。) T: Now make a survey to study the pollution around your home, and fill out the form. Pollution Reason Effect Air pollution Soil pollution Water pollution Light pollution Noise pollution Litter 板书设计: Pollution is harmful to people’s health. Section A air pollution there be sb./sth. doing sth. soil pollution be harmful to … water pollution Kangkang said that it was a beautiful light pollution place with flowers and grass. noise pollution The government has done something litter useful to stop it. 初中学习网,资料共分享!我们负责传递知识!www.czxxw.com

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