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1、用心 爱心 专心 1Unit 4 Our WorldTopic 1 Plants and animals are important to us.Section CThe main activities are 1a and 2a. 本课重点活动是 1a和 2a。. Teaching aims and demands 教学目标1.Learn some new words and phrases:cover, earth, surface, thousands of, dark, forest, control, wood, rubber, protect, main, fact, in fac
2、t, make up, lake, sea, ocean, drop, on earth, hole, fill, fill with , dig, deep, everything2.Learn some useful sentences:(1)Water is necessary for all plants.(2)They cant live at all without water.3.Go on learning comparative and superlative degrees of adjectives:(1)The plants in the forests help to
3、 make the air fresher.(2)But, now, rainforests are becoming smaller and smaller.(3)Water makes up the largest part of the human body.4.Describe nature resources and realize the importance of environment protection:(1)They also help to control the climate.(2)Rainforests give us wood, rubber, fruit, m
4、edicine and so on.(3)It is important to all living things. We must save 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 五指教学方案Step 1 Review 第一步 复习(时间:10 分钟)通过讨论对动植物的看法，复习形容词比较级和最高级形式，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 animal
5、s?S1: I like animals better.T: Why?S1: Because animals are our friends. They give us joy. They are very friendly to us.T: Well done! S2, do you like plants or animals?S2: I like plants better.T: Why?S2: Because plants are very important to us. They are useful.T: Now, class, please practice the dialo
6、g 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 animals and plants as many as you can.Ss: T: Where can you see animals and plants?S3: On the farm.用心 爱心 专心 2S4: In the zoo.S5: In the forest.(教师帮助学生用英语说出 forest。)T: Very good. In a forest, there are many animals and plan
7、ts. Today were going to learn a special forest. It often rains and it is very wet. It is a rainforest.(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较级+and+比较级的用法。)T: Its a picture of rainforests. They cover 6% of the earths surface. Thousands of animals live there. It
8、s always dark, hot and wet in rainforests. They can help to control the climate. They give us wood, rubber, 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，同时帮助学生理解并掌握smaller and sm
9、aller的用法。)cover, earth, surface, thousands of, dark, control, climate, wood, rubber, smaller and smaller, protect(学生熟读单词后，再看图片并回答教师提出的问题。)T: What are they?Ss: They are rainforests.T: How large are the rainforests?Ss: They cover 6% of the earths surface.T: Whats in the rainforests?Ss: Thousands and t
10、housands of animals live there.T: What can we get from the rainforests?Ss: We can get wood, fruit, medicine, rubber and so on.T: Are they important to us?Ss: Yes, they are.T: What should we do then?Ss: We should protect them well.T: Good! I hope rainforests will become larger and larger. Do you want
11、 to know more about rainforests?Ss:Yes.T: Lets learn Section C together.用心 爱心 专心 3Step 2 Presentation 第二步 呈现(时间:8 分钟)听录音并阅读短文内容，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
12、cover 6% of the earths surface?(2)Are there thousands of different plants and lots of trees in rainforests?(3)Can rainforests help 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
13、words.(板书)Paragraph 1: cover 6%animalslive inthousands ofdarkwetParagraph 2: importantlungshelp to makecontrolwood, rubber smallerprotectStep 3 Consolidation 第三步 巩固(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。)(教师让学生猜测句子中 main的意思，板书并要求学生掌握。)mainT: Now please read 1a and fini
14、sh 1b.(核对答案。)2. (再读 1a，完成 1c。)T: Read 1a again and write down the importance of rainforests.(核对答案。)T: Students, can you give us your answer?S1: Make 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
15、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 rainforests.S6: Step 4 Practice 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. Wh
16、at do you think of water?用心 爱心 专心 4Ss: Its very important to us, too.T: What do humans need water to do?Ss: 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 up T: Water covers most parts of the earth. Its in rivers, seas, lakes and oceans.(板书并要求学生掌握。)sea, lake, oceanT: All plants and animals need water, that is to say, water is important
