八年級(jí)下冊M3 Unit 2We have not found life on any other planets yet(42張)

1、Look at the picture and talk about what you know about Chinese spaceships.Shenzhou-9 is a manned(載人載人) spaceship.mnd “嫦娥一號(hào)嫦娥一號(hào)”(Change-1)月球探測衛(wèi)星月球探測衛(wèi)星于于2007年年10月月24日在西昌衛(wèi)星中心由日在西昌衛(wèi)星中心由“長征三號(hào)甲長征三號(hào)甲”運(yùn)載火箭發(fā)射升空。經(jīng)運(yùn)載火箭發(fā)射升空。經(jīng)過過8次變軌后，于次變軌后，于11月月7日正式進(jìn)入工作日正式進(jìn)入工作軌道。軌道。2009年年3月月1日在控制日在控制下成功撞擊月球，下成功撞擊月球，為我國探月一期工為我國探月

2、一期工程畫上圓滿句號(hào)。程畫上圓滿句號(hào)。“嫦娥二號(hào)嫦娥二號(hào)” (Change-2)于于2010年年10月月1日成功升空，這次最主要的一個(gè)任日成功升空，這次最主要的一個(gè)任務(wù)就是對(duì)月球虹灣地區(qū)進(jìn)行高清晰度務(wù)就是對(duì)月球虹灣地區(qū)進(jìn)行高清晰度的拍攝，而此次的拍攝將為嫦娥三號(hào)的拍攝，而此次的拍攝將為嫦娥三號(hào)衛(wèi)星的發(fā)射和著陸做好前期準(zhǔn)備。衛(wèi)星的發(fā)射和著陸做好前期準(zhǔn)備。“嫦娥三號(hào)嫦娥三號(hào)”(Change-3)“懷抱懷抱”中國首輛月球中國首輛月球車車“玉兔號(hào)玉兔號(hào)”飛天落月，飛天落月，“玉兔號(hào)玉兔號(hào)”于于2013年年12月月15日著陸。日著陸。 the universe?ju:nv:s Read the pass

3、age and choose the best title for it. 1. Anyone out there? 2. Life on the earth 3. The sun and other stars 4. The stars at night 123456Where can we find the answers?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 galax

4、ies has travelled for a long time to reach us. 5. Scientists have received many messages from space.6. Spaceships have visited most of the universe.Task 3P213 Check() the true sentences. planet part haventThe 1st Paragraph. Questions:1.How long has there been life on the earth? 2.Have we found life

5、on any other planets yet?There has been life on the earth for hundreds of millions of years. No, we havent.We planted _ trees last year. A. hundreds of B. hundred of C. five hundreds D. five hundred ofPractise1.What is called the solar system? What is it?2.How many planets are there in the solar sys

6、tem?3. Why dont scientists think theyll find life on the other planets? The sun and its planets are called the solar system.It is a small part of the Galaxy / the Milky Way.The 2nd Paragraph. Questions:There are eight planets.Because none of them has an environment like that of the earth.planetWhich

7、 is the smallest?staruniversegalaxysolar systemWhich is the largest?planetsmallstaruniversegalaxysolar systemlargethe earth(planet)the sungo aroundan environmentthe solar system(group of stars and planets)the Galaxybillions of starsEarth-planetstarsolar systemgalaxyuniverseWhat do you know about the

8、 universe?SunRead P22. The earth is a planet and it goes around the sun. Seven other planets also go around the sun. 地球是顆行星，它圍繞著太陽轉(zhuǎn)。此外還地球是顆行星，它圍繞著太陽轉(zhuǎn)。此外還有七顆行星也圍繞著太陽轉(zhuǎn)。有七顆行星也圍繞著太陽轉(zhuǎn)。 2) go around: 繞著繞著運(yùn)轉(zhuǎn)運(yùn)轉(zhuǎn) The Earth goes around the Sun. 地球繞著太陽轉(zhuǎn)。地球繞著太陽轉(zhuǎn)。 Lets go around the town, not through it. 我們繞過這城鎮(zhèn)吧

9、，不要穿過去了。我們繞過這城鎮(zhèn)吧，不要穿過去了。 (1) none作不定代詞作不定代詞, 既可指人既可指人, 也可指也可指物物, 后可接后可接of結(jié)構(gòu)；而結(jié)構(gòu)；而no one只表示人只表示人, 后后面不能接面不能接of結(jié)構(gòu)。結(jié)構(gòu)。 (2) none作主語作主語, 指可數(shù)名詞時(shí)指可數(shù)名詞時(shí), 后面動(dòng)后面動(dòng)詞用單復(fù)數(shù)均可。詞用單復(fù)數(shù)均可。none指不可數(shù)名詞時(shí)指不可數(shù)名詞時(shí), 謂語動(dòng)詞用單數(shù)。謂語動(dòng)詞用單數(shù)。no one 作主語時(shí)作主語時(shí), 謂語謂語動(dòng)詞要用單數(shù)形式。動(dòng)詞要用單數(shù)形式。如：如： None of us has been to Hong Kong. 我們之中沒有人去過香港。我們之中沒有

10、人去過香港。 No one can answer the difficult question. 沒有人能回答這個(gè)難題。沒有人能回答這個(gè)難題。We rang several times, but no one answered. 我們按了幾次鈴，但沒有人來開門。我們按了幾次鈴，但沒有人來開門。None of us has / have been to Sanya. 我們都沒去過三亞。我們都沒去過三亞。 Im hungry. Is there any bread in the fridge? _, but we have cakes. Would you like to have one? A.

11、 Some B. Much C. None D. NothingPractise選擇適當(dāng)?shù)膯卧~完成句子。選擇適當(dāng)?shù)膯卧~完成句子。 1. _ of us has been to Egypt.2. _ can do the difficult job.none; no oneNo oneNone3) other/the other/others/another這幾個(gè)相類似的詞容易弄混淆，其實(shí)意思大這幾個(gè)相類似的詞容易弄混淆，其實(shí)意思大相徑庭。相徑庭。other其它的（人或物）其它的（人或物）, 后面經(jīng)常跟可數(shù)名后面經(jīng)常跟可數(shù)名詞復(fù)數(shù)形式；詞復(fù)數(shù)形式； We havent found life on

12、 other planets yet. 我們還沒有在其它的星球上發(fā)現(xiàn)生命。我們還沒有在其它的星球上發(fā)現(xiàn)生命。（其他的星球不可能只有一個(gè)）（其他的星球不可能只有一個(gè)）the other（兩者中的）另一個(gè)（兩者中的）另一個(gè),后面不可能跟后面不可能跟復(fù)數(shù)形式；復(fù)數(shù)形式； He has two daughters. One is a teacher, the other is a doctor. 他有兩個(gè)女兒，一個(gè)是老師，另一個(gè)是醫(yī)他有兩個(gè)女兒，一個(gè)是老師，另一個(gè)是醫(yī) 生。生。 （有且只有兩個(gè)，兩者中的另一個(gè)）（有且只有兩個(gè)，兩者中的另一個(gè)）others其它的人或物（已經(jīng)包括在內(nèi)）其它的人或物（已經(jīng)包

13、括在內(nèi)）, 后面后面不能跟名詞，本身就含有名詞的含義；不能跟名詞，本身就含有名詞的含義； Some people came by car, others came on foot. 有些人是坐汽車來的，其他人是走著來的。有些人是坐汽車來的，其他人是走著來的。（others后面不能再加名詞）后面不能再加名詞）another（三者以上中的，或不知道數(shù)量的）（三者以上中的，或不知道數(shù)量的）另一個(gè)另一個(gè), 后面也不可跟復(fù)數(shù)形式。后面也不可跟復(fù)數(shù)形式。 Would you like another cup of tea? 你要再來有一杯茶嗎？你要再來有一杯茶嗎？（泛指再來一杯）（泛指再來一杯） What

14、 have scientists discovered?2. Why is it impossible to imagine how large the universe is? Theyve discovered many other galaxies in the universe. Because they are very far away and their light has to travel for many years to reach us.The 3rd Paragraph. Questions: Scientists have _ the planet Mars to

15、_. They have even sent spaceships to _ the solar system. However, no spaceship has travelled _ other stars in our Galaxy.The 4th Paragraph.sent spaceships totake photostravel outsidefar enough to reachPara 53. However, no spaceship has travelled far enough to reach other stars in our Galaxy. 然而，還沒有任

16、何航天器能到達(dá)銀河系然而，還沒有任何航天器能到達(dá)銀河系里的其他恒星。里的其他恒星。He is not old enough to join the army. 他年齡太小，不能參軍。他年齡太小，不能參軍。We have enough time to finish the work. 我們有充足的時(shí)間完成這項(xiàng)工作。我們有充足的時(shí)間完成這項(xiàng)工作。enough作作副詞副詞，修飾形容詞或副詞修飾形容詞或副詞時(shí)放在時(shí)放在被修飾詞后面被修飾詞后面；enough作作形容詞形容詞，修飾名修飾名詞詞時(shí)常放在時(shí)常放在被修飾詞之前被修飾詞之前。如：。如：形容詞形容詞/副詞副詞 + enough to do表示表示“

17、到達(dá)到達(dá)程度，會(huì)發(fā)生某結(jié)果程度，會(huì)發(fā)生某結(jié)果”。 He is old enough to go to school. 他到上學(xué)的年齡了。他到上學(xué)的年齡了。 He got up early enough to catch the first bus. 他起得很早，趕上了首班車。他起得很早，趕上了首班車。6. . with so many stars in the universe, are we alone, or is there life out there in space? 宇宙中有這么多星球，我們是孤獨(dú)的宇宙中有這么多星球，我們是孤獨(dú)的 嗎，抑或太空中還有其他生命存在呢？嗎，抑或太空中

18、還有其他生命存在呢？這里這里with so many stars in the universe是介是介 詞短語，在句中作狀語。詞短語，在句中作狀語。with + 名詞名詞 + 介詞短語介詞短語,在句中做狀語，在句中做狀語，表示表示伴隨情況伴隨情況。 With so many things to do, we have no time to play. 要做的事情這么多，我們都沒時(shí)間玩了。要做的事情這么多，我們都沒時(shí)間玩了。The woman stood there with her hands in the pockets.那個(gè)女士站在那里，手插在口袋里。那個(gè)女士站在那里，手插在口袋里。Pr

19、actise Why do you always sleep _? Because Im afraid of the dark. A. by yourself B. with the door open C. with the window open D. with the light on 4. With so many stars in the universe, are we alone, or is there life out there in space? alone作形容詞作形容詞, 意為意為“孤單的孤單的, 獨(dú)自的獨(dú)自的”, 只能作表語。如：只能作表語。如： I was alo

20、ne in the classroom. 我獨(dú)自在教室里。我獨(dú)自在教室里。 To tell you the truth, I dont feel like being alone tonight. 說實(shí)話說實(shí)話, 我今晚不想孤單一人。我今晚不想孤單一人。 alone還可作副詞還可作副詞, 意為意為“只有；僅僅；單只有；僅僅；單獨(dú)地獨(dú)地”。如：。如：She lives alone in that house. 她獨(dú)自一人住在那棟房子里。她獨(dú)自一人住在那棟房子里。You cant live on bread alone. 你不能僅靠面包維生。你不能僅靠面包維生。 辨析辨析 alone與與lonel

21、y的區(qū)別的區(qū)別 alone側(cè)重于說明獨(dú)自一人側(cè)重于說明獨(dú)自一人,沒有人沒有人陪伴陪伴, 不強(qiáng)調(diào)主觀感情；不強(qiáng)調(diào)主觀感情；lonely形容人時(shí)形容人時(shí), 則表示情感上則表示情感上“孤孤獨(dú)的；寂寞的獨(dú)的；寂寞的”, 常作表語。常作表語。如：如：He was very lonely after his wife left. 他妻子離開后，他很孤獨(dú)。他妻子離開后，他很孤獨(dú)。She feels very lonely. 她感覺很孤獨(dú)。她感覺很孤獨(dú)。practiceHe lives _, but he never feels_.A. lonely; alone B. lonely; lonely C. a

22、lone; lonely D. alone; alonePractice根據(jù)漢語提示完成單詞。根據(jù)漢語提示完成單詞。1. Lindas parents are out. She has to stay at home _ (獨(dú)自地獨(dú)自地).2. The old man lives with his dog in the big house and he feels very _(寂寂寞的寞的). alonelonelythe Sunthe Mercurythe Earththe Venusthe Marsthe Jupiterthe Saturnthe Uranusthe Neptunethe

23、 Pluto the solar system 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 太陽系太陽系the Galaxy / the Milky Way the Galaxy / the Milky Way 銀河系銀河系There are _ stars in the Milky Way.billions ofOur solar system is

24、a small part of _.the Milky Way = the Galaxy銀河系銀河系It is _ to imagine.宇宙宇宙galaxiesgalaxiesimpossibleimpossibleScientists have discovered many other_ in the universe.So how large the universe is? The sun and its planets are called _The earth is a _ and it goes around the sun. _ other planets go around

25、 the Sun.planet Seventhe solar system 太陽系太陽系the Galaxy / the Milky Way the Galaxy / the Milky Way 銀河系銀河系There are _ stars in the Milky Way.billions ofOur solar system is a small part of _.the Milky Way = the Galaxy銀河系銀河系It is _ to imagine.宇宙宇宙galaxiesgalaxiesimpossibleimpossibleScientists have disco

26、vered many other_ in the universe.So how large the universe is?The earth is a _ and it _ the sun. Scientists think that life on the earth for _ years. planetgoes aroundhundreds of millions ofHowever, have we found life on any other planets yet?there has beenScientists have sent _to the planet Mars t

27、o take photos. spaceshipsThey have even sent spaceships _(travel) outside the solar system.to travel Is there life on other planets? There are seven other planets in our (1)_, but (2)_ of them has a(n) (3)_ like that of the earth. Spaceships from the earth have done surveys of the other planets, but

28、 they have not found any life there. Why has no one from other planets tried to (4)_ with us? It is true that scientists have not discovered life on other planets in the (5)_ yet, but some scientists believe that they will find it some day. communicate environment none solar system universe solar sy

29、stem noneenvironmentcommunicateuniverseComplete the passage with the words and expressions in the box.P21Task 5What have the scientists just received? (a message from one of our spaceships)Look at the picture from a science story for children and answer the questions.P215Theyve just received a messa

30、ge from one of our spaceships.1. Where has the spaceship landed? (Mars)2. What has the spaceship discovered? (people on Mars)The spaceship has landed on Mars.The spaceship has 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 o

31、n Mars not visited us on the earth? (do not know how to)The people on Mars havent sent us a message because they dont know how to communicate with us.They havent visited us on the earth because they dont know how to fly to our planet.Look through the passage again and pay attention to the sentences

32、show the logic.Para. 1: However, we have not found life on any other planets yet.Para. 2: Seven other planets also go around the sun.Para. 3: Scientists have also discovered many other galaxies in the universe.Para. 4: They have even sent spaceships to travel outside the solar system.Write a passage

33、 to describe the picture. Use your answers to the questions in Activity 5 to help you.We have just received a message from our spaceship to MarsP216Tip: 在寫的過程中要注意句子間的過在寫的過程中要注意句子間的過渡和邏輯關(guān)系。渡和邏輯關(guān)系。.從括號(hào)內(nèi)選出合適的詞語完成句子。從括號(hào)內(nèi)選出合適的詞語完成句子。1. I went to the concert last night. My five _ (other/others) friends went, too.2. There are three books but Li Lei likes _ (no one/none) of them.3. The weather in Shenzhen is different from _ (that/it) in Heilongjiang.4