2020-2021学年外研版英语八年级下册Module3 Unit2课件

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1、3 Unit 2 We have not found life on any other planets yet. . 短语互译短语互译 1. 绕着绕着转转 go _ 2. 的一小部分的一小部分 _ _ _ of 3. 数十亿的数十亿的 _ _ 4. solar system _ 5. the Milky Way _ 答案答案: 1. around 2. a small part 3. billions of 4. 太阳系太阳系 5. 银河系银河系 . 句型展示句型展示 1. 我们还没有在任何其他行星上发现生命我们还没有在任何其他行星上发现生命。 We _ _ _ life on any ot

2、her planets yet. 2. 科学家们也已经在宇宙中发现了许多别的星系科学家们也已经在宇宙中发现了许多别的星系。 Scientists _ _ _ many other galaxies in the universe. 3. 所以宇宙有多大所以宇宙有多大? 它是不可能想象出来的它是不可能想象出来的。 So _ _ is the universe? _ _ impossible _ _. 答案答案: : 1. have not found 2. have also discovered 3. how large; It is; to imagine 4. 然而然而, 还没有宇宙飞船到

3、过足以到达我们还没有宇宙飞船到过足以到达我们(银河银河)系其他恒星系其他恒星 那么远的地方那么远的地方。 However, no spaceship has travelled _ _ _ reach other stars in our Galaxy. 5. 宇宙中有这么多星球宇宙中有这么多星球, 我们是孤独的呢我们是孤独的呢, 还是在太空中还有还是在太空中还有 其他生命存在呢其他生命存在呢? _ so many stars _ the universe, are we alone, or _ _ life out there in space? 答案答案: 4. far enough to

4、 5. With; in; is there 1. How many planets are there in the universe? 2. Is there any life on other planets? Lead in Discuss something about the universe. The Earth, the Sun, Mars, the moon No, maybe there will be in the future. Yuri Gagarin, Soviet Union 12, April,1961 1968 年年12月月27日日,阿波罗阿波罗8 号号第一次

5、载人的月球第一次载人的月球 行动行动，在完成了历时六天在完成了历时六天 的历史性航行之后的历史性航行之后，安全安全 返回地球返回地球。 1986年年1月月28日日,“挑挑 战者战者”号航天飞机号航天飞机 在肯尼迪航天中心在肯尼迪航天中心 发射升空不久后爆发射升空不久后爆 炸炸。 埃德温埃德温 艾尔德林艾尔德林 环绕地球飞行环绕地球飞行 的宇航员每“天”的宇航员每“天” 可以看见可以看见16次日次日 出和出和16次日落。次日落。 Who is he? He is Chinas first astronaut. The Shenzhou-V spacecraft orbited the Earth

6、 14 times at an altitude of 343 kilometres. The space flight lasted 21 hours by Yang Liwei in October, 2003. Yang Liwei was called “Chinas first astronaut”. none environment solar system solar system group galaxy universe impossible communicate pron. 没有一个没有一个 n. 环境环境 adj. 太阳的，与太阳有关的太阳的，与太阳有关的 n.系统，体

7、系系统，体系 星系，星系，(尤指尤指)太阳系太阳系 n. 群，组群，组 n. 星系星系 n. 宇宙宇宙 adj. (事情事情)办不到的，不可能的办不到的，不可能的 v. 联系，交流联系，交流 Presentation Words and expressions A. galaxy B. planet C. solar system D. star E. universe A B C D E B 1 Match the words with the pictures. 1. Anyone out there? 2. Life on earth 3. The sun and the stars 4

8、. The stars at night No Image 2 Read the passage and choose the best title for it. Check () the true sentences. 1. The earth is a star. 2. The sun is a star. 3. There is more than one galaxy in the universe. 4. The light from the stars in other galaxies has travelled for a long time to reach us. 5.

9、Scientists have received many messages from space. 6. Spaceships have visited most of the universe. () () () () () () 3 Complete the passage with the words and expression in the box. Is there life on other planets? There are eight planets in our _,but _ of them has a(n) _like that of the earth.Space

10、ships from the earth have done surveys of other planets, but they have not found any life there. Why has no one from other planets tried to _ with us? It is true that scientists have not discovered life on other planets in the _yet, but some scientists do not _ that they can find it some day. solar

11、system environment none communicate universe doubt 4 communicate doubt environment none solar system universe Language points 1. None of them has an environment like that of the earth. 它们中没有一个有像地球这样的环境它们中没有一个有像地球这样的环境。 【自主领悟自主领悟】none意为意为“没有一个没有一个”, 是不定代词是不定代词, 可以与可以与of 连用表示范围构成连用表示范围构成none of; 作主语时作

12、主语时, 谓语动词要用谓语动词要用单数单数形式形式。 例如例如: None of the children speaks English. 这些孩子没有一个这些孩子没有一个 人讲英语人讲英语。 【用法辨析用法辨析】none与与no one的区别的区别 none 既可以指人既可以指人, 也可以指物也可以指物, 一般用来回答一般用来回答how many/much引导的特殊疑问句。例如引导的特殊疑问句。例如: How many birds are there in the tree? 树上有几只鸟树上有几只鸟? None. 一只也没有。一只也没有。 no one 相当于相当于nobody, 常用来指

13、人常用来指人, 作主语时谓语动词要用作主语时谓语动词要用 单数形式单数形式; 不可以与不可以与of连用连用; 一般用来回答一般用来回答who引导引导 的特殊疑问句。例如的特殊疑问句。例如: Who is in the room at the moment? 此时谁在房间里此时谁在房间里? No one/Nobody. 没人。没人。 【活学活用活学活用】None of us (visit) British Museum before. 答案答案: : has visited Who will climb the hill if it rains tomorrow? except you, I t

14、hink. A. Nothing B. None C. No one D. No body No Image 2. With so many stars in the universe, are we alone, or is there life out there in space? 宇宙中有这么多星球宇宙中有这么多星球, 我们是孤独的呢我们是孤独的呢, 还是在太空中还有其还是在太空中还有其 他生命存在呢他生命存在呢? 【自主领悟自主领悟】(1)With so many stars in the universe是是with的一的一 个复合结构个复合结构“with+名词名词+介词短语介词短

15、语”, 放在句首作伴随状放在句首作伴随状 语语, 此结构有时也可以位于句末此结构有时也可以位于句末。例如例如: The teacher came into the classroom, with a book in his hand. 老师手里拿着一本书走老师手里拿着一本书走 进教室进教室。 (2)alone用作形容词用作形容词, 意为意为“孤单的孤单的”, 在句中作表语在句中作表语, 指的是指的是 客观情况客观情况。例如例如: The young man was alone in that dark room. 那个年轻人独自一人待在那黑屋子里那个年轻人独自一人待在那黑屋子里。 【归纳拓展归

16、纳拓展】with复合结构的其他构成复合结构的其他构成 (1)“with +名词名词+形容词形容词/副词副词”。例如例如: He left with the door open. 门开着门开着, 他就离开了他就离开了。 (2)“with +名词名词+现在分词现在分词/过去分词过去分词/不定式不定式”。例如例如: He fell asleep with his radio working. 他睡着了他睡着了, 收音机还响着收音机还响着。 【温馨提示温馨提示】 在在with复合结构中复合结构中, 不定式不定式、现在分词作宾语补足语现在分词作宾语补足语, 表表 示主动示主动, 但是不定式表示将要发生的

17、动作但是不定式表示将要发生的动作, 而现在分词表示正而现在分词表示正 在发生或发生了的动作在发生或发生了的动作; 过去分词表示被动或完成过去分词表示被动或完成。 【活学活用活学活用】 乔手插衣袋沿街走着乔手插衣袋沿街走着。 Joe walked along the street his hands his pockets. The boy lay on the grass with his eyes (look) at the sky. 答案答案: : with; in looking What have the scientists just heard? (a message from a

18、 spaceship) Theyve just heard a message from a spaceship. 5 Look at the cartoon picture and answer the questions. 1. Where has the spaceship landed? (Mars) 2. What has the spaceship discovered? (people) 3.Why have the people on Mars not sent us a message? (dont know how to) 4. Why have the people on

19、 Mars not visited us on earth? (dont know how to) Weve just heard that our spacecraft has landed on Mars, and weve discovered 6 Write the story in the picture. Use the answers to the questions in Activity 5 to help you. Weve just had some news about the mission to explore Mars. Scientists have just

20、heard that the spaceship has landed on Mars and has discovered people. These people havent sent us a message because they cant hear us. They havent visited the earth because they prefer life on Mars. They have used parts from the other spacecraft from earth to make TVs, radios and cars. Possible ver

21、sion: 一、根据句意写单词。一、根据句意写单词。 1. Everyone knows _ travels much faster than sound. 2. _ of us like this bad TV programme. 3. The flowers will _ well if they get enough water. 4. The solar system is a small part of our_. 5. We havent _ life on other planets yet. light None grow galaxy found Practice 二、句型

22、转换二、句型转换。 1. I have been to America before.（变成一般疑问句）（变成一般疑问句） _ 2. have, finished, not, I, homework, my（连词成句）（连词成句） _ 3. She _ the Great Wall twice.（选（选 has gone to/has been to 填空）填空） Have you been to America before? I have not finished my homework. has been to 4. So far, I learned more than 1,000 n

23、ew words.（改错）（改错） 5. I think he will come to your birthday party.（改为否定句）（改为否定句） I _ _ _ _ come to your birthday party. have learned dont think he will . 单项选择单项选择 1. The earth goes the sun. A. around B. to C. for D. with 2. Although Tony lives , he doesnt feel . A. alone; alone B. alone; lonely C. lo

24、nely; lonely D. lonely; alone 3. There were two rows of white houses trees in front of them. A. of B. with C. in D. for No Image No Image No Image 4. Did you know that the earth is home to animals? A. millions B. million of C. millions of D. a million of 5. The students come from many different coun

25、tries but of them comes from Africa. A. no one B. nobody C. nothing D. none No Image No Image . 完成句子完成句子 1. 今年迄今为止雨水已经太多了今年迄今为止雨水已经太多了。 _ _ _ too much rain so far this year. 2. 我们还没有收到过来自太空的信息我们还没有收到过来自太空的信息。 We _ _ messages from space _. 3. 大毛跑得足够快大毛跑得足够快, 可以追上其他人可以追上其他人。 Damao is running _ _ _ cat

26、ch up with others. 答案答案: : 1. There has been 2. havent received; yet 3. fast enough to 4. 和小吉姆交流很困难和小吉姆交流很困难。他总是有许多奇怪的想法他总是有许多奇怪的想法。 _ very difficult to _ _ little Jim. He always has many strange ideas. 5. 大峡谷有多大大峡谷有多大? 这很难说这很难说。 _ _ is the Grand Canyon? Its hard to say. 答案答案: : 4. Its; communicate with 5. How large Homework Get more information about planets.