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教案 Is there life on other planets


Is there life on other planets? 教案
孔子中学 教学目标:
1. 通过阅读培养学生根据上下文猜测词义的能力; 2. 培养学生通过略读(skimming)理解文中大意的能力; 3. 培养学生通过扫读(scanning)找关键词或根据句子在文中的位置弄清文章细节的 能力; 4. 让学生了解一些太空知识,实现跨学科交流的目的。 5.

通过小组讨论其他星球上是否有生命存在,增强学生的想象力,激发他们的求知 欲,并融入保护地球的情感教育。

孔庆菊

教学重点和难点: 通过阅读策略培养学生的阅读能力 教学过程

Step 1 Leading in
First play a video about “ If there is life on Venus” . T: “Are you interested in space? Now let’s know about the space ”

Step 2 读前铺垫
1. Play the flashcard and show some sentences with several new words. At night , we can sometimes see millions of stars in space The Earth is a planet and it goes around the Sun. The sun and its planets are called solar system. But it is only a small part of universe. 2. T: “We live on the earth , it means there is life on the earth. What about other plants? Now let's learn a passage about it.” 3. Show the Learning aims , then get a student to read them out.

Step 3 Reading
Task 1: Fast reading.
1

Read the passage quickly and answer the questions. (阅读提示:快速默读短文,整体把握短文大意) Have scientists discovered life on other planets? Task 2: Careful reading Read again and finish the questions (阅读提示:通过扫读(scanning)找关键词或句子在文中的位置弄清文章 细节) 1.How long has there been life on the earth? __________________________________________________ 2. How many planets go around the sun? A. Six B. Seven C. Eight D. None 3. __________ from the earth have done survy of the other planets? 4. 从下面的句子中找出 discover 的同义词 But some scientists believe that they will find it some day. Task 3: Group work Do you hope there is life on other planets? Why or why not? Why .play with them .make friends .travel to other planets .communicate with them .they can bring delicious food .learn some new things .want to live on other plants …
2

Why not .have a happy life now .our earth is beautiful .maybe they hurt earth …

How are you going to do?/How should you do? (learn science well /study hard /protect(保护)our earth...) Then get students to make a report like this: In our group, I hope there is life on otherplanets. Because I want to ... A and B also hope so .If the aliens come to the earth , they will ... ... But C hopes not because... All in all, we are going to learn ... And we should protect our earth

and make it more beautiful because we have only one earth. Just do it now! Teacher’s wish: I hope some of you will become scientists one day.So you should study hard now. And your dream will come true Step 4 Homework: 1. Get more information about planets 2. Write down your own ideas according to your group discussion. 写下你们小组的讨论结果 _______________________________________________________ _______________________________________________________ 教后反思:本堂课是关于 Is there life on other planets?的一堂阅 读课,要求学生能运用阅读策略读懂文章,掌握文章大意,着重培养
3

学生的阅读能力,教学目标基本达成。不足之处是:最后环节的小组 讨论活动进行的不够充分,口语还有待加强。

Is there life on other planets? The earth is a planet and it goes around the sun. There has been life on the earth for millions of years. But is there life on other planets? There are seven other planets in our universe, but none of them has an environment like that of the earth. Spaceships from the earth have done surveys of the other planets, but they have not found any life there. Why has no one from other planets tried to communicate with us? It is true that scientists have not discovered life on other planets in the solar system yet, but some scientists believe that they will find it some day.

词汇 Can you say the meaning of the words? 1. planet ['pl? n?t]
2. millions of [m lj?n] 3. universe 4. none

[ju:n?v?:s]

[n n]

5 spaceship [spe?s??p] 6. discover [d 'sk v?] 7 .solar system

['s??l?]

['s?st?m]
4


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