Module 3 Journey to space
Unit 2 We have not found life on any other planets yet.
教学设计
教材分析
本节课是外研版八年级英语下 Module 3 Unit 2, 是一节科普阅读课。本节课主要介绍太空的基本知识和人类探索太空所付出的努力。从描述人类最紧密的太阳系开始，逐渐过渡到太阳系以外的星系，在陈述人类探索太空所取得的成就的同时也提出了困惑：地球之外是否还存在着其他的生命呢？课文对于现在完成时的运用非常恰当，因为人类对于太空的探索是一个自古至今持续不断地行为。本课能够帮助学生充分理解现在完成时的语境。
学习目标
知识与技能目标：
1. 能够听说读写下列单词：
none, environment, that, solar, system, group, universe, light, impossible, out, communicate
2. 能够听懂关于太空探索的话题并提取信息。
3. 能够简单介绍人类在太空探索领域取得的成就，能够根据图片简单的描述图片中有关太空探索的内容。
4. 能够读懂以太空为主题的简单文章并能识别细节，做出正误判断。
5. 能够根据图片去完成与主题相关的写作任务。
情感目标：
培养学生对天文知识的兴趣和对未来事物的探索精神。了解中国的太空探索情况，增强民族自豪感。
过程与方法：
通过自主互助与合作的方法，结合图片等其他媒体介绍人类对于太空的探索。
教学重难点：
教学重点：能够运用现在完成时描述人类已经实施的太空探索，正确使用already, yet和just等。
教学难点：熟练掌握现在完成时态，了解一些关于太空的信息。在阅读之后，能够用现在完成时对文章进行简单描述。
教学过程：
Step1激情导入：
1.课前读词：
none, environment, that, solar, system, group, universe, light, impossible, out, communicate
2. 利用图片介绍一些天文知识，为下一步的阅读降低难度。
Step2 多层次阅读
1. Fast reading
Read the passage and answer some questions .
1.）How many planets are there in the solar system?
2. ）Is there any life on other planets?
(设计意图：通过第一遍快速感知课文，让学生能够对文章有个粗略的了解，从而抓住文章的中心。)
2. Careful reading
a) Read again and check (√) the true sentences.
1) The Earth is a star.
2) The Sun is a star.
3)There is more than one galaxy.
4) Our galaxy is part of the Milky Way.
5) The light from stars has taken a long way to reach us.
6) Scientists have found life on other planets.
7) They ’ve received many messages from space.
8) They ’ve visited most of the universe.
（设计意图：通过第二遍的细读课文，能够加深学生对太空的了解，增强好奇心。）
b) Read again and fill the blanks
1. The Sun is a ____ in the solar system . The Earth is a _______and it goes around the Sun .
2. Altogether there are _______ planets around the Sun .
3. There are billions of stars in the _______.
4. There are many other galaxies in the __________.
5. We have sent spaceship to the planet ____ to take photos. but we haven’t discovered ___on other planets.
（设计意图：通过第三遍的细读课文，能够帮助学生对文章细节有所了解。）
3.Choose the best title
a. Anyone out there?
It could be an article(文章） on whether there is life on other planets
b. Life on Earth
It could be an article on how life developed（发展、进化） on earth and what it is like?
c. The sun and other stars
It could be an article on comparing the stars with planets and find out the differences.
d. The stars at night
It could be an article on looking at the night sky with telescopes（望远镜）.
（设计意图：本题难度较大，所以我把它放在了最后，通过前面的阅读，加上对每一个标题的解读，能帮学生更好的理解。）
4. 再次仔细阅读课文
找出自己不懂得地方，小组进行讨论，尝试解决问题，如果还不明白的记录下来。
（设计意图：仔细阅读，弄懂课文，提出疑问，解决问题。）
Step 3 Writing
1.Discussion(小组合作)
Do you hope there are any living creatures(生物) in outer space? Why?
2. Look at the picture from a science story for children and answer the questions:
What have the scientists just received? (a message from one of our spaceships)
They have just received a message from one of our spaceships.
1.） Where has the spaceship landed? (Mars)
2.） What has the spaceship discovered? (people on Mars)
3. ）Why have the people on Mars not sent us a message? (do not know how to)
4. ）Why have the people on Mars not visited us on the earth? (do not know how to)
3. Write a passage to describe the picture
We’ve just received a message from our spaceship to Mars…
（设计意图：利用学过的句型描述图片，巩固所学知识。）
Step 5 小结
Step 6作业
评测练习
一、把下列短语译成英语
1.数百万 2.在其它的行星上
3.绕太阳转 4.遥远
5.被叫做 6.其他七个行星
7.一小部分 8.几十亿的星星
9.在宇宙中 10.许多其他的星系
11.很难想像 12.不得不，必须
13.足够远 14. 如此多
15.和某人联系 16.收到来自….的信息
17.太阳系 18.他们中没有一个人
二、用所给词的适当形式填空
1.This city ________(call) Hangzhou.
2. The boy is old enough _______(look) after himself
3. It is impossible _________ (finish ) work today.
4. None of them ______(come) from China.
5. China has ________(billion) of people.
三．单词拼写。
1. There is the earth, the sun, the moon and many other stars in the u________.
2. There are eight planets in the solar s_____________.
3. We should try our best to protect the e______________.
4. A ______(群，组) of kids were playing with a ball in the street. It’s too dangerous.
5. The l____________ in the room is poor. Don’t read in it.
6. I want to know how they ___________(交流) in the past.
7. It’s ______________(不可能的) for you to do it.
8. The?old?man?is?a_______________. No?one?lives?with?him.
9. I know _________(没有一个) of the students over there.
10. I am interested in the books on space _________(旅行).
四．完成句子。
1、今天比昨天暖和多了。
It’s _________________________ today than yesterday.
2、地球是一颗行星，它围绕着太阳转动。
The earth is a planet and it __________________ the sun.
3、很难想象宇宙到底有多大。
____________________________how large the universe is.
4、科学家们已经在宇宙中发现了许多其他星系。
Scientists ___________________________ in the universe.
5、如果你有任何问题，你可以和你的老师交流一下。
If you have _______________, you can ________________ your teacher.
课件26张PPT。Try to spell the words没有一人
环境
那，那个
太阳的
系统，体系
太阳系
群，组
星系
宇宙
光/光线/光亮
不可能的
在远方
联系，交流none
environment
that
solar
system
solar system
group
galaxy
universe
light
impossible
out
communicate Module 3Journey to spaceUnit 2We have not found life
on any other planets yet.Can you match the words with the pictures?galaxyplanetsolar systemstaruniverse太阳 The sun and its planets are called _____________The earth is a ______ and it goes around the sun.
_______ other planets go around the Sun.planet Seventhe solar system
太阳系the Galaxy /
the Milky Way
银河系There are ________ stars in the Milky Way.
billions ofOur solar system is part of ____________.
Scientists have discovered many other _________ in the universe. So it is ________ to imagine how large the universe is.galaxiesimpossibleplanetsthe Sunthe EarthMars the solar system200 billion starsIt’s a part of the universe(宇宙).the Milky WayPut the words and expressions from the smallest to the largest :A. galaxy B. planet C. solar system
D. star E. universeBDCAEReadingTask 1（速读）
Read the passage and answer the questions
How many planets are there in the solar system?2. Is there any life on other planets?Eight.We don’t know , we have never found any life on other planets .Read and tell T or F Task 2
（careful reading) 1. The Earth is a star.
2. The Sun is a star.
3. There is more than one galaxy in the universe.
4. Our galaxy is part of the Milky Way.5. The light from stars has taken a long way to
reach us.
6. Scientists have found life on other planets.
7. They ’ve visited most of the universe.a planet.haven’thaven’tOur galaxy is called the Milky Way .大部分1 The Sun is a ____ in the solar system .
The Earth is a _______and it goes
around the Sun .
2 Altogether there are _______ planets
around the Sun .
3 There are billions of stars in the _______.
4 There are many other galaxies in the
__________.
5 We have sent spaceship to the planet ____ to take photos. but we haven’t discovered ____on other planets. starplaneteightgalaxyuniverseMars lifeTask 3 Fill in the blanks Task 4
Choose the best titleAnyone out there?
It could be an article(文章） on whether there is life on other planets
2. Life on the earth.
It could be an article on how life developed（发展、进化） on earth and what it is like?
3. The sun and other stars.
It could be an article on comparing the stars with planets and find out the differences.
4. The stars at night.
It could be an article on looking at the night sky with telescopes（望远镜）. Task 4生物UFOE.T（外星人）.supermanDo you believe(相信) there are any
living creatures in outer space?WritingLook at the picture from a science story for children and answer the questions:What have the scientists just received?
(a message from one of our spaceships)
They have just received a message from one of our spaceships.
1. Where has the spaceship landed? (Mars)It has landed on Mars. 2. What has the spaceship discovered? (people on Mars)
3. Why have the people on Mars not sent us a message? (do not know how to)It has discovered people on Mars.
They do not know how to send us a message.4. Why have the people on Mars not visited us on the earth? (do not know how to)They do not know how to visit us on the earth. We’ve just received a message from our spaceship to Mars…Write a passage to describe the picturePossible version:We’ve just received a message from our spaceship to Mars. Our spaceship has discovered aliens there. They have never sent us a message because they don’t know how to communicate with us. They have not visited the earth because they don’t know how to fly to our planet, and they prefer life on Mars. They seem very happy on their planet. They have used parts from the other spaceships from the earth to make TVs, radios and so on. We hope they will live happily with us one day!Ms Zhou wish:
I hope some of you will become scientists and send spaceship with astronauts to the space one day.
So you should study harder from now on. And your dream will come true.Homework Revise the language
points of unit 2.
2. Do exercises of M3U2
in your WB.Thank you!
