外研版八年級(jí)下冊(cè)英語(yǔ)M3U2

1、編輯ppt1編輯ppt2編輯ppt3Scientists have sent spaceship to Mars. The journey has taken several months. 編輯ppt4編輯ppt5Read the passage 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 編輯ppt61. The earth is a star. 2. The sun is a star

2、.3. There is more than one galaxy in the universe.Check () the true sentences. 編輯ppt74. The light from the stars in other galaxies 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. 編輯ppt81. Scientists think

3、 that there has been life on Earth for millions of years. 賓語(yǔ)從句賓語(yǔ)從句 there has been: there be 的完成時(shí)的完成時(shí)科學(xué)家們認(rèn)為，科學(xué)家們認(rèn)為，地球上地球上已有已有生命生命數(shù)百萬(wàn)年數(shù)百萬(wàn)年了。了。Read Para 1 and find out this sentence.They think _ (曾有過(guò)曾有過(guò)) life on the moon.用用現(xiàn)在完成時(shí)現(xiàn)在完成時(shí)there behas everbeen編輯ppt9Read Para 2 and answer questions:1. What doe

4、s the Earth go around?2. How many planets go around the sun?3. What is the solar system? It goes around the sun.Eight planets .The sun and its planets are called the solar system.圍著圍著轉(zhuǎn)轉(zhuǎn)編輯ppt102. None of them has an environment with air. (L3-4) none : 一個(gè)一個(gè)（人（人物）物）也沒(méi)有也沒(méi)有 用來(lái)回答用來(lái)回答how many 的提問(wèn)的提問(wèn) （no on

5、e 用來(lái)回答用來(lái)回答who 的提問(wèn)）的提問(wèn)） none of + n.復(fù)復(fù) （謂語(yǔ)動(dòng)詞單復(fù)均可）（謂語(yǔ)動(dòng)詞單復(fù)均可） with : 有有他們中沒(méi)有一個(gè)他們中沒(méi)有一個(gè)有有 空氣的環(huán)境?？諝獾沫h(huán)境。編輯ppt11 How many people are there in the classroom? _. A. No one B. None C. Nothing 這些宇航員沒(méi)人去過(guò)火星。這些宇航員沒(méi)人去過(guò)火星。 _ the astronauts _ Mars. 這里曾經(jīng)有個(gè)帶花園的房子。這里曾經(jīng)有個(gè)帶花園的房子。 _ some houses _ gardens.None ofhave / has

6、been toThere have been with 編輯ppt123. The sun and its planets are called the solar system. (L5-6)be called: 被叫做被叫做 （被動(dòng)語(yǔ)態(tài)）（被動(dòng)語(yǔ)態(tài)）那個(gè)演唱組合叫那個(gè)演唱組合叫S.H.E. S.H.E. 。The pop group _S.H.E.is called編輯ppt13Read Para 3 fill in the blanks:The stars we see _ are the suns in other solar system. There are _ 200 billo

7、n stars in our galaxy, called the _, and our sun is only _. at night more than Milky Wayone of them編輯ppt144. The stars we see at night are the suns in other solar systems. (L1-2)定語(yǔ)從句定語(yǔ)從句： 用來(lái)解釋前面的名詞。用來(lái)解釋前面的名詞。 的的 + + 前面的名詞前面的名詞我們晚上看到的我們晚上看到的星星是其他星系的恒星。星星是其他星系的恒星。The boy who is talking to the teacher

8、comes from England.正在和老師談話(huà)的正在和老師談話(huà)的男生來(lái)自英國(guó)。男生來(lái)自英國(guó)。編輯ppt15Read Para 4 answer questions: What have scientists discovered? 2. Why is it hard to know how large the universe is? Theyve discovered many other galaxies. Because they are very far away.編輯ppt165. their light has travelled for many years to reac

9、h us.他們的光線(xiàn)需要好幾年才能到達(dá)地球。他們的光線(xiàn)需要好幾年才能到達(dá)地球。到達(dá)某地到達(dá)某地 arrive in + 大地方大地方 at + 小地方小地方 get to + 地方地方 reach + 地方地方【溫故知新】【溫故知新】后面沒(méi)有地點(diǎn)只用后面沒(méi)有地點(diǎn)只用 arrivearrive編輯ppt17 He will call you as soon as he _Foshan. A. arrive in B. gets C. reaches Who can tell me when he _? A. reached B. got to C. arrived The light is to

10、o high. I cant _it. A.reach B. arrive C.get編輯ppt186. Its hard to understand how large the universe is.( ) Its hard for the students _ the English well. A. learn B. to learnC. learningIt is +形形 + (for sb.) to doB很難明白宇宙有多大。很難明白宇宙有多大。編輯ppt19Read Para 5、6 and answer questions:Has anyone discovered life

11、in space ?No one has discovered any life in space yet.(P5,L4)編輯ppt207. With so many stars in the universe, are we alone, or is there life out there in space?(P6,L3)be alone: 孤單的，孤獨(dú)的孤單的，孤獨(dú)的行為動(dòng)詞行為動(dòng)詞+alone 孤單地孤單地， 獨(dú)自獨(dú)自loney 寂寞的寂寞的,孤單的孤單的feel lonely感到孤單的感到孤單的宇宙中有這么多的星體，我們是宇宙中有這么多的星體，我們是單獨(dú)的單獨(dú)的嗎？嗎？太空中還有其他

12、生命嗎？太空中還有其他生命嗎？編輯ppt21用用lonely，alone填空填空 The old man lives _ but he never feels _. Because he has many friends there. Dont leave your child _ at home.alonelonelyalone編輯ppt22Complete the passage with the words and expression in the municate environment none solar system universeIs 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. solar systemnoneenvironment編輯ppt23Spaceships from the earth have done surveys of the other planets, but they have not found any life there. Why has no one from ot