科普版九年级英语上册《Topic 2 All these problems are very serious. Section A》优质课教案_22
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仁爱英语九年级上册Unit2 Topic2 Section A教学设计Unit 2 Saving the EarthTopic 2 All these problems are very serious.Section A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：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：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：1、Words and phrases:sand, although, sandstorm, desert, human being, reduce, completely, change into,stop … from, blow/ wash … away, as a result2、Sentences:1). A lot of water can be saved by forests.2). Although we have buil t “The Green Great Wall”, we still need to do something to protectthe environment.3、Grammar: Indefinite pronoun and adverb.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：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：PPT教学过程:Step 一、Review and lead-in1、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 1aT: By the way, what’s the weather like today?Ss: It’s sunny.T: The weather is good here. But the weather in Beijing is not as good ashere. Look at the pictures. What’s happening in Beijing?Ss: Sandstorms.T: Yes. What do you think of sandstorm?Ss: It’s bad.T: Do you know how sandstorms come into being? How can that affect the weather?Now let’s 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、Learn new lessonA、Learn Part 1（1a—1c ）1. Listen to 1a and choose the best answer. (finish 1b)The boy and girls are talking about ________.A. different types of sandstormsB. the reasons for sandstormsC. 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 1a1). 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 alone7. 在Section A中找出含有不定代词的句子。
1）....,I couldn’t 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 2Complete 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、Practice and consolidation1 .Choose the best answer .1). The policemen tried to keep traffic accidents _____ happening.A. fromB. inC. toD. with2). _____he was very tired,_____ he went on working.A. Although, butB. /, stillC. Although , /D. Because, so3). _____ bad weather! We have to stay at home.A. What aB. HowC. How aD. What4). I haven’t learnt ____ about the film, because they say ____ about it.A. anything; nothingB. anything; somethingC. something; anythingD. something; nothing5). –Doctor Li, is there anything wrong with my eyes?–No. ____ is OK.A. SomethingB. EverythingC. NothingD. 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 we’ll _______ 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。
