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九年級Unit 4 Amazing Science教案

時間:2023-04-25 07:49:39 教案 我要投稿
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九年級Unit 4 Amazing Science教案

 Unit 4 Amazing Science Topic3 I don’t think aliens can be found in space. Section C 九年級  林麗娟  Teaching aims and demands: 1. Learn more knowledge about Mars. 2. Foster students’ active attitude towards science and positively exploring the unknown fields of science. Teaching procedure: Step1 Review 1. Would you like to share your opinions with your classmates? A: How old is our earth? It’s about 4 600 million years old. B: .Do you like our planet? Why? If not, where do you prefer to live? 2. The teacher plays a video about Mars, then ask students to answer the following two questions: A. What does Mars look like? B. Do you think that Mars is a suitable place for human beings to live? T: Do you want to know more about Mars ? Let’s come to Section C. Step 2 Presentation 1. Let’s learn and master some new words first: solar system  (Mars is the fourth planet from the sun in our solar system and is named after Mars, the Roman god of war. ) diameter ( A circle is divided into two halves by diameter) Roman  ( 1. Do in Rome as the Romans do .  2 . All roads lead to Rome.) 2.Listen to 1a and scan it , then let students find out difficult sentences in the passage and the teacher writes them down on the blackboard. eg: 1)Its diameter is 53% as wide as that of the earth.  2) The gravity on the surface of Mars is about two-fifths as strong as it is on earth. 3) Scientists are still searching for more information about Mars. Step 3  Consolidation 1. Let students read 1a again , discuss the following questions in groups and answer them , finish 1b, and then check the answers. (1) What does Mars look like? (2) What’s the weather like on Mars? (3) What’s the gravity on Mars? (4) What’s the temperature on Mars? (5) How far is it from the sun? 2. Ask students to tell something about Mars according to the following key words. Mars, the fourth… be named after… diameter distance from the sun  shape climate gravity oxygen 3. Contest in groups. Divide the class into several groups. Let students discuss the questions in 1C, and finish it, encourage students to raise more questions about Mars. 4. The teacher makes a summary and leads to 2. T: Life on Mars is really wonderful, however, human beings still have so much unknown knowledge about it. So scientists are still searching for more information about Mars. Kangkang’s uncle sent an e-mail from Mars but some words are missing. Let’s listen to the tape and complete it. Step 4  Practice 1.  Let students listen to 2, and understand the new word “l(fā)imit” 2.  Let students listen to 2 again and fill the blanks. Finish 2. 3.  The teacher writes down the following sentences on the blackboard and let students learn and understand them , eg: (1) It has been two days since we landed on Mars. (2) We had to limit the use of water during those days. (3) … but the excitement of being on Mars is worth it. Step 5 Project 1.  According to the information about Mars you have learnt from this topic, write a passage .Finish 3 2.  Do some exercises and check the answers:   Step 6  Homework 1.Write a short passage to introduce your life on Mars. 2.Finish the exercises of Section C 3.Preview Section D  課后反思: 1.  通過Section C ,學生能了解到更多關于火星的知識。培養(yǎng)學生熱愛科學,探索未知領域的積極態(tài)度,這也是這課要求達到的目的。 2.  關于火星的內(nèi)容還是比較抽象的,學生還需在課后進一步的學習。 3.  本節(jié)課重點突出了“A+謂語動詞+倍數(shù)/分數(shù)/百分數(shù)+as+形容詞原級+as+B ”此句型。 4.  與中考接軌,做了一些適當?shù)木毩,但是題目的難度還是把握不好,需要進一步的學習和研究。

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