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1、八年级上册Unit 4 Our World Topic 1 Section C备课教案 The main activities are1aand2a. 本课重点活动是1a和2a。. Teaching aims and demands 教学目标n some new words and phrases:cover, earth, surface, thousands of, dark, forest, control, wood, rubber, protect, main, fact, in fact, make up, lake, sea, ocean, drop, on earth, hol
2、e, fill, fill with , dig, deepn some useful sentences:(1)Water is necessary for all plants.(2)They cant live at all without water. on learning the comparative and superlative degrees of adjectives: (1)The plants in the forests help to make the air fresher.(2)But, now, rainforests are becoming smalle
3、r and smaller.(3)Water makes up the largest part of the human body.ribe natural resources and realize the importance of environment protection:(1)They also help to control the climate.(2)Rainforests give us wood, rubber, fruit, medicine and so on.(3)It is important to all living things. We must save
4、 every drop of water. Teaching aids 教具录音机/多媒体/小黑板/植树过程的图片. Five-finger Teaching Plan 五指教学计划Step 1Review 第一步复习(时间:10分钟)通过讨论对动植物的看法，复习形容词比拟级和最高级形式，导入本课新词。1. (师生互动示范，然后让学生表演对话，复习描述动物和植物。)T: Hello, S1, do you like plants or animalsS1:I like animals better.T: WhyS1:Because animals are our friends. They g
5、ive us joy. They are very friendly to us.T: Well done! S2, do you like plants or animalsS2:I like plants better.T: WhyS2:Because plants are very important to us. They are useful.T: Now, class, please practice the dialog like this, OK(学生两人一组练习对话。然后找几组学生表演。2. (头脑风暴，引出新知识。)T: Now, please say some anima
6、ls and plants as many as you can.Ss: T:Where can you see animals and plantsS3: On the farm.S4: In the zoo.S5: In the forest.(教师帮忙学生用英语说出forest。)T: Very good. In a forest, there are many animals and plants. Today were going to learn a special forest. It often rains and it is very wet. It is a rainfor
7、est.(板书并要求学生掌握forest；了解rainforest。)forest, rainforest(教师通过多媒体展示热带雨林的图片，引出并学习生词及比拟级+and+比拟级的用法。)T:Its a picture of rainforests. They cover 6% of the earths surface. Thousands of animals live there. Its always dark, hot and wet in rainforests. They can help to control the climate. They give us wood, r
8、ubber, fruit, medicine and so on. They are very important to us, but they are becoming smaller and smaller, so we must protect them well.(教师边说边用多媒体呈现短语及生词，并要求学生掌握；理解climate，同时帮忙学生理解并掌握smaller and smaller的用法。)cover, earth, surface, thousands of, dark, control, climate, wood, rubber, smaller and small
9、er, protect(学生熟读单词后，再看图片并答复教师提出的问题。)T:What are theySs: They are rainforests.T:How large are the rainforestsSs: They cover 6% of the earths surface.T:Whats in the rainforestsSs: Thousands and thousands of animals live there.T:What can we get from the rainforestsSs: We can get wood, fruit, medicine, r
10、ubber and so on.T:Are they important to usSs: Yes, they are.T: What should we do thenSs: We should protect them well.T: Good! I hope rainforests will become larger and larger. Do you want to know more about rainforestsSs:Yes.T:Lets learn Section C together.Step 2Presentation 第二步呈现(时间:8分钟)听录音并阅读短文内容，
11、培养学生的听力和阅读能力。1. (听1a录音，了解课文内容并回答下列问题。)T: Most students want to know more about the rainforests. Please listen to the tape and answer the following questions:(出示小黑板。)(1)What cover 6% of the earths surface(2)Are there thousands of different plants and lots of trees in rainforests(3)Can rainforests hel
12、p to control the climate(核对答案。)2. (教师播放1a录音，学生跟读两遍，注意语音语调，并画出关键词。)T:Read after the tape twice. Pay attention to the pronunciation and intonation, and underline the key words.(板书)Paragraph 1: cover 6%animalslive inthousands ofdarkwetParagraph 2: importantlungshelp to makecontrolwood, rubber smallerpr
13、otectStep 3Consolidation 第三步稳固(时间:8分钟)通过对短文的理解，完成1b、1c，并根据关键词对其进行复述。培养学生综合运用语言的能力。1. (阅读1a，完成1b。)(教师让学生猜想句子中main的意思，板书并要求学生掌握。)mainT: Now please read1aand finish 1b.(核对答案。)2. (再读1a，完成1c。)T: Read1aagain and write down the importance of rainforests.(核对答案。)T: Class, can you give us your answerS1: Make
14、the air fresher.S2: Control the climate.S3: Give us wood, rubber, fruit, medicine and so on.3. (根据黑板上的关键词，用接龙的形式复述短文。)Example:T: Now please retell the passage one by one according to the key words.S4: Rainforests cover 6% of the earths surface.S5: Thousands and thousands of animals live in rainfores
15、ts.S6: Step 4Practice 第四步练习(时间:14分钟)通过对四幅图片的描述，让学生认识到水是一种重要的资源，所有生物都离不开水。培养学生节约用水的意识。1. (师生对话，引出生词导入2a。)T:Rainforests are very important to us. What do you think of waterSs: Its very important to us, too.T:What do humans need water to doSs: We need water to drink, to cook and to clean.T:Yes. In fact, water makes up the largest part of the human body.(板书并要求学生掌握。)fact, in fact, make upT: Water covers most parts of the earth. Its in rivers, lakes, seas and oceans.(板书并要求学生掌握。)lake, sea, oceanT: All plants and animals need wat
