Unit 2 Saving the Earth-Topic 2 All these problems are very serious.-Section A-ppt课件-(含教案+素材)-市级公开课-仁爱科普版九年级上册(编号：70249).zip

仁爱英语九年级上册仁爱英语九年级上册 Unit 2 Saving the Earth Topic 2 All these problems are very serious. Section A 台山市学业初级中学台山市学业初级中学 刘刘 月月 贞贞 沙沙 沙暴沙暴 转换成，变成转换成，变成 沙漠；沙漠；舍弃，遗弃舍弃，遗弃 人人 虽然，尽管，即使虽然，尽管，即使 减少；减轻减少；减轻 sand sandstorm change into desert human being although reduce They do harm to our health in many ways . air pollutionlight pollutionlitter water pollutionsoil pollutionnoise pollution sandstorms Do you know how sandstorms come into being? The boy and girls are talking about _. A.different types of sandstorms B.the reasons for sandstorms C.sandstorms in different cities 1b Listen to 1a and choose the best answer. Focus on the main idea of the conversation when you listen for the first time. B 1. The weather is fine and the wind is blowing lightly. ( ) 2. A lot of rich land has changed into desert because people have cut down too many trees. ( ) 3. A lot of water can be saved by forests. ( ) 4. Cutting down trees is harmful to only animals and plants. ( ) Listen again and Mark T(True ) or F(False). F bad strongly T T F human beings 1c Read 1a and complete trees functions. B. A lot of water can be saved by forests. Trees functions Trees can stop the wind from blowing the earth away. Trees can stop the water from washing the earth away. A. C. 1. Trees can stop the wind from blowing the earth away. 树木可以阻止风吹走土壤。树木可以阻止风吹走土壤。 （blow away 吹走）吹走） 2. They can also stop the water from washing the earth away. 它们还能够阻止水冲走土壤。它们还能够阻止水冲走土壤。（wash away 冲走）冲走） stop/prevent/keep sb. from doing sth. 阻止某人做某事阻止某人做某事 My mother always stops me from playing computer games. 3. And a lot of water can be saved by forests. 森林可以贮存大量的水。森林可以贮存大量的水。/ 大量的水可以被森林贮存。大量的水可以被森林贮存。 can be saved “能被贮存能被贮存”，含有情态动词的被动语态，含有情态动词的被动语态 save : 贮存贮存/保留保留/保存保存; 节约；节约；挽救挽救 节约水节约水 save water 救救地球救救地球 save the earth 请在请在Section A中找出含有中找出含有不定代词不定代词的句子。的句子。 1.,I couldnt see anything. 2., we still need to do something to protect the environment. 1.somebody, someone, something, somewhere 2.anybody, anyone, anything, anywhere 3.none, nobody, nothing, nowhere 4.everybody, everyone, everything, everywhere 一般情况下用于肯定句一般情况下用于肯定句 一般情况下用于否定句和疑问句一般情况下用于否定句和疑问句 表否定含义表否定含义 可用于各种句式可用于各种句式 1.People have cut down such a large number of trees that the land _desert. 2.There are fewer trees left, so the wind always _the earth _. 3.Air pollution has become a serious problem, so we must _ to reduce it. 4.we should try our best to _ people _ cutting down the trees. 5.In the future, human beings can protect the trees well. _, animals will live a happy life in the forest. as a result, change into, do something, stopfrom, blowaway has changed into blows away do something stopfrom As a result 2 Complete the sentences with the correct forms of the given phrases in the box. 大量的大量的 1.The policemen tried to keep traffic accidents _ happening. A. from B. in C. to D. with 2. _he was very tired,_ he went on working. A. Although, but B. /, still C. Although , / D. Because, so 3. _ bad weather! We have to stay at home. A. What a B. How C. How a D. What 4. I havent learnt _ about the film, because they say _ about it. A. anything; nothing B. anything; something C. something; anything D. something; nothing 5. Doctor Li, is there anything wrong with my eyes? No. _ is OK. A. Something B.Everything C. Nothing D. Someone Read the passage and fill in the blanks with the correct words. The earth is our home. But some of us have _ it, and it is crying for _. Why? Because we _ down too many trees, so lots of rich land has _ into desert. Factories _ waste water into rivers. pollution has caused many serious problems and it is _ to our health. What should we do to save it? We should _ more trees. We can ride bikes or walk to school to _ air pollution. I think we should try to be greener people to protect our earth. . After all, we have only one earth. We should do _ we can to protect it, or well _ our home. pollutedhelp cut changedpour plant reduce everythinglose harmful 1 3 2 5 7 4 6 8 910 1. sand , sandstorm , change into, desert, human being, although, reduce 2. blow away 吹走吹走 wash away 冲走冲走 stop /prevent /keep sb. from doing sth. 阻止某人做某事阻止某人做某事 as a result 结果结果 a large number of 大量的大量的 3. Indefinite Pronoun 不定代词不定代词 .,I couldnt see anything. .,we still need to do something to protect the environment. 4. Learn much information about sandstorm. UnitUnit 2 2 SavingSaving thethe EarthEarth TopicTopic 2 2 AllAll thesethese problemsproblems areare veryvery serious.serious. SectionSection A A 评测练习： 1 .Choose the best answer . 1). The policemen tried to keep traffic accidents _ happening. A. from B. in C. to D. with 2). _he was very tired,_ he went on working. A. Although, but B. /, still C. Although , / D. Because, so 3). _ bad weather! We have to stay at home. A. What a B. How C. How a D. What 4). I havent learnt _ about the film, because they say _ about it. A. anything; nothing B. anything; something C. something; anything D. something; nothing 5). Doctor Li, is there anything wrong with my eyes? No. _ is OK. A. Something B. Everything C. Nothing D. Someone 2. Read the passage and fill in the blanks with the correct words. The earth is our home. But some of us have _ it, and it is crying for _. Why? Because we _ down too many trees, so lots of rich land has _ into desert. Factories _ waste water into rivers. pollution has caused many serious problems and it is _ to our health. What should we do to save it? We should _ more trees. We can ride bikes or walk to school to _ air pollution. I think we should try to be greener people to protect our earth. . After all, we have only one earth. We should do _ we can to protect it, or well _ our home. 1 仁爱英语九年级上册仁爱英语九年级上册 Unit2Unit2 Topic2Topic2 SectionSection A A 教学设计教学设计 UnitUnit 2 2 SavingSaving thethe EarthEarth TopicTopic 2 2 AllAll thesethese problemsproblems areare veryvery serious.serious. SectionSection A A 教材分析：教材分析：本课是九年级第二单元第二话题的第一课时。主活动是 1a。1a 通过 Kangkang 向他的同伴 Maria 和 Jane 抱怨恶劣的天气，引出本课的功能意念：抱怨和责备。同时 也初步呈现了本单元的语法点：不定代词和不定副词。1b 主要培养听力策略，即重点 听对话的大意。1c 侧重于考查归纳总结的能力。在 2 中，通过“用所给词的正确形式 填空”这种题型，巩固 1a 中的重点语言点。本课通过谈论沙尘暴的成因说明了树木对 环境保护的重要作用。同时也让学生了解天气与人类活动的关系，关注全球的环境问 题。 学情分析：学情分析：根据本阶段学生的年龄和性格特点、心理特征，他们的听说能力已开始慢慢提 高。他们掌握了一定的英语基础知识和语言技能。同时，他们能够在小组合作中与他 人合作，互相帮助，共同完成学习任务。 教学目标：教学目标： 1、掌握本课的重点词汇和短语，谈论沙尘暴的成因。 2、初步感知不定代词和不定副词的用法。 教学重点：教学重点： 1、Words and phrases: sand, although, sandstorm, desert, human being, reduce, completely, change into, stop from, blow/ wash away, as a result 2、Sentences: 1). A lot of water can be saved by forests. 2). Although we have built “The Green Great Wall”, we still need to do something to protect the environment. 3、Grammar: Indefinite pronoun and adverb. 教学难点：教学难点：1、能够从所听材料中获得有效的细节信息来补全句子。 2、能够根据图片和信息提示词描述沙尘暴形成的过程。 教学方法：教学方法：直观教学法，情景交际法，任务型教学法，愉快教学法相结合。 教学用具：教学用具：PPT 教学过程教学过程: Step 一、一、Review and lead-in 1、 Review the words in Section A (设计意图：检查学生课前预习新单词的情况，为学习新课做准备。) 2、 Show the pictures and review six kinds of pollution. (设计意图：通过看图片复习已学的六种污染，为下面的 sandstorms 做准备。) 3、Show two pictures of sandstorms and lead in 1a 2 T: By the way, whats the weather like today? Ss: Its sunny. T: The weather is good here. But the weather in Beijing is not as good as here. Look at the pictures. Whats happening in Beijing? Ss: Sandstorms. T: Yes. What do you think of sandstorm? Ss: Its bad. T: Do you know how sandstorms come into being? How can that affect the weather? Now lets do some listening. (设计意图：通过展示图片与师生之间的对话导入 sandstorms，吸引学生的注意力和兴趣， 了解 sandstorms 形成的原因，为听力做准备。) Step 二、二、Learn new lesson A、Learn Part 1（1a1c ） 1. Listen to 1a and choose the best answer. (finish 1b) The boy and girls are talking about _. A. different types of sandstorms B. the reasons for sandstorms C. sandstorms in different cities (设计意图：通过听力输入，训练学生听懂大意的能力，完成 1b 练习) 2. Listen to 1a again and mark T(True ) or F(False). 1.The weather is find and the wind is blowing lightly. ( ) 2. A lot of rich land has changed into desert because people have cut down too many trees. ( ) 3. A lot of water can be saved by forests. ( ) 4. Cutting down trees is harmful to only animals and plants. ( ) (设计意图：通过再一次的听力输入，让学生进一步把握听力文段的细节信息，了解沙尘暴 的成因。) 3. Read 1a after the tape and then read it together. (设计意图：先全班跟录音读，带动学生学习的热情，培养语感；再集体朗读，增强自信， 提高学习的兴趣。) 4. complete trees functions. (finish 1c) (设计意图：通过 complete trees functions.的活动，让学生明白树木对环境保护的重要作用， 并关注全球的环境问题。) 5. Key points in 1a 1). Trees can stop the wind from blowing the earth away. 树木可以阻止风吹走土壤。 （blow away 吹走） 2). They can also stop the water from washing the earth away. 它们还能够阻止水冲走土壤。 （wash away 冲走） stop/prevent/keep sb. from doing sth. 阻止某人做某事 My mother always stops me from playing computer games. 3). And a lot of water can be saved by forests. 森林可以贮存大量的水。/ 大量的水可以被森林贮存。 can be saved “能被贮存” ，含有情态动词的被动语态 save : 贮存/保留/保存; 节约；挽救 3 节约水 save water 救救地球 save the earth (设计意图：掌握本课的知识点。) 6. Read 1a alone 7. 在 Section A 中找出含有不定代词的句子。 1）.,I couldnt see anything. 2）., we still need to do something to protect the environment. 1.somebody, someone, something, somewhere 一般情况下用于肯定句 2.anybody, anyone, anything, anywhere 一般情况下用于否定句和疑问句 3.none, nobody, nothing, nowhere 表否定含义 4.everybody, everyone, everything, everywhere 可用于各种句式 (设计意图：初步呈现了本单元的语法点：不定代词和不定副词。) B、Learn Part 2 Complete the sentences with the correct forms of the given phrases in the box.（finish 2） (设计意图：通过学生单独完成练习，检查学生对所学语言知识的巩固情况。) Step 三、三、Practice and consolidation 1 .Choose the best answer . 1). The policemen tried to keep traffic accidents _ happening. A. from B. in C. to D. with 2). _he was very tired,_ he went on working. A. Although, but B. /, still C. Although , / D. Because, so 3). _ bad weather! We have to stay at home. A. What a B. How C. How a D. What 4). I havent learnt _ about the film, because they say _ about it. A. anything; nothing B. anything; something C. something; anything D. something; nothing 5). Doctor Li, is there anything wrong with my eyes? No. _ is OK. A. Something B. Everything C. Nothing D. Someone (设计意图：通过学生单独完成练习，检查学生掌握语言点的情况。) 2. Read the passage and fill in the blanks with the correct words. The earth is our home. But some of us have _ it, and it is crying for _. Why? Because we _ down too many trees, so lots of rich land has _ into desert. Factories _ waste water into rivers. pollution has caused many serious problems and it is _ to our health. What should we do to save it? We should _ more trees. We can ride bikes or walk to school to _ air pollution. I think we should try to be greener people to protect our earth. . After all, we have only one earth. We should do _ we can to protect it, or well _ our home. (设计意图：通过学生单独完成，再小组内讨论，提高学生的合作精神和对于中考题型短文 填空的考试能力。) 4 Step 四、四、Summary 1. sand , sandstorm , change into, desert, human being, although, reduce 2. blow away 吹走 wash away 冲走 stop /prevent /keep sb. from doing sth. 阻止某人做某事 as a result 结果 a large number of 大量的 3. Indefinite Pronoun 不定代词 .,I couldnt see anything. .,we still need to do something to protect the environment. 4. Learn much information about sandstorm. Step 五、五、Homework 1. Remember the new words ,the useful expressions and key sentences in Section A. 2. Write a short passage about how sandstorms come into being. (Part 3) 3. Finish Section A in your workbook. 板书设计：板书设计： 教学反思：教学反思： Unit2 Topic2 Section A本节课，我顺利完成了教学任务，教学目标基本达成， 教学中突出了教学重点、难点。使学生明确这节课的学习目标是掌握本课的重点词汇和短 语、谈论沙尘暴的成因和初步感知不定代词和不定副词的用法。 经过课堂教学实践，通过复习和练习的形式贯穿整节课，环环相扣，学生思维活跃， 勇于发表自己的见解，课堂参与的积极性高，合作意识较强, 课堂的气氛活跃。在教学关 Unit 2 Saving the Earth Topic 2 All these problems are very serious. Section A Words: sand / sandstorm although desert reduce completely Phrases: change into stop from blow/ wash away human being as a result Sentences: 1.Trees can stop the wind from blowing the earth away. 2.They can also stop the water from washing the earth away. 3.A lot of water can be saved by forests. 4. Although we have built “The Green Great Wall”, we still need to do something to protect the environment. 5 系上，体现教师的帮助引导作用；在学习方式上，体现学生的主体性，促进学生在教师的 指导下主动的学习，收到非常好的教学效果。但在最后的中考题型填词完成短文的练习上， 上层生掌握得很好，但部分中下层生无法完成。 在今后的英语教学中，我会好好反思，真真正正的关注每一位学生，特别是中下层学 生，让他们真正成为课堂上的主人，同时多总结经验，敢于创新，努力提高英语课堂教学 效果。