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初中外研版 (新标准)Unit 2 We have not found life on any other planets yet背景图课件ppt
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这是一份初中外研版 (新标准)Unit 2 We have not found life on any other planets yet背景图课件ppt，共48页。PPT课件主要包含了Module 3，Unit 2，earth ，moon，Revision，spaceship，astronaut，× ，none，universe 等内容，欢迎下载使用。
Jurney t space
We have nt fund life
space travel
Scientists have sent spaceship t Mars. The jurney has taken several mnths.
Astrnauts have already been t the mn.
N ne has been t Mars yet, because Mars is very far away, much farther than the mn.
Lts f scientists are wrking hard in rder t send astrnauts t Mars ne day.
Scientists think that there has been life n the Earth fr hundreds f millins f years. Hwever, we have nt fund life n any ther plants yet.
Read the passage.
The Earth is a plant and it ges arund the sun.
Seven ther planets als g arund the sun. Nne f them has an envirnment like that f the earth, s scientists d nt think they will find life n them.
The sun and its planets are called the slar system, and ur slar system is a small part f a much larger grup f stars and planets, called the Galaxy r the Milky Way.
There are billins f stars in the Galaxy, and ur sun is nly ne f them.
Scientists have als discvered many ther galaxies in the universe. They are very far away and their light has t travel fr many years t reach us. S hw large is the universe? It is impssible t imagine.
Scientists have sent spaceship t the planet Mars t take phts. They have even sent spaceships t travel utside the slar system.
Hwever, n spaceship has travelled far enugh t reach ther stars in ur Galaxy.
Lk at the picture and talk abut what yu knw abut Chinese spaceships.Shenzhu-9 is a manned spaceship.
Wrk in pairs
Listen and read
Read the passage and chse the best title fr it. 1. Anyne ut there? 2. Life n the earth 3. The sun and ther stars 4. The stars at night
1. The earth is a star. 2. The sun is a star.3. There is mre than ne galaxy in the universe.
Check (√) the true sentences.
4. The light frm the stars in ther galaxies has travelled fr a lng time t reach us.5. Scientists have received many messages frm space.6. Spaceships have visited mst f the universe.
Cmplete the passage with the wrds and expressin in the bx.
Is there life n ther planets? There are seven ther planets in ur (1) ____________, but (2)______ f them has a(n) (3)____________ like that f the earth.
slar system
Spaceships frm the earth have dne surveys f the ther planets, but they have nt fund any life there. Why has n ne frm ther planets tried t (4) _____________ with us? It is true that scientists have nt discvered life n ther planets in the (5)_________ yet, but sme scientists believe that they will find it sme day.
1. Scientists think that there has been life n the Earth fr hundreds f millins f years. 科学家认为地球上的生命已经有亿万年 了。millins f 数百万 hundreds f 数百thusands f 成千上万 billins f 数十亿
Language pints
e.g. There are billins f stars in the Galaxy, and ur sun is nly ne f them.银河系中有数十亿颗恒星，我们的太阳只是其中的一个。2. Hwever, we have nt fund life n any ther planets yet.然而，我们还没有在任何其他行星上发现生命。
yet 用于否定句和疑问句，意思是“还，尚”。nt … yet 的意思是“还没，尚未”，表示某事物在某一时间尚未发生，但未来也许会发生。例如：I haven’t learnt any farther infrmatin yet. 我还没有得到进一步的信息。Have yu received her letter yet?你收到她的来信了吗？
3. The Earth is a planet and it ges arund the sun. Seven ther planets als g arund the sun.地球是颗行星，它围绕着太阳转。此外还有七颗行星也围绕着太阳转。 太阳系的其他七颗行星：水星(Mercury)、金星(Venus)、火星(Mars)、木星(Jupiter)、土星(Saturn)、天王星(Uranus)、海王星(Neptune)。
4. Nne f them has an envirnment like that f the earth, s scientists d nt think they will find life n them.他们中没有一个有像地球这样的环境，因此科学家们认为在他们上面找不到生命。nne f … 表示（三个以上）一个也没 有。做主语时，谓语动词可用单数或复 数。
e.g. Nne f us has/have been t the Mars. 我们中没一个去过火星。5. … ur slar system is a small part f a much larger grup f stars and planets, called the Galaxy r the Milky Way. 我们的太阳系只是一个由恒星和行星组成的星系的一小部分，这个星系比太阳系大得多，称作银河系或银河。
这里的the Galaxy专指“银河系”，也可以称作 the Milky Way。而galaxy则泛指“星系”。e.g. Scientists have discvered a distant galaxy.科学家们发现了一个遥远的星系。
6. S hw large is the universe? It’s impssible t imagine.所以宇宙有多大？我们无从想象。
句型: It is + 形容词 + t + 动词原形，意思是“做某事很……”e.g. It is difficult t read these wrds. 读这些单词很难。
7. With s many stars in the universe, are we alne, r is there life ut there in space? 宇宙中有这么多星球，我们是孤独的吗？或者太空中还有其他生命存在呢？
with + 名词 + 介词短语，表示伴随情况，意思是“带着……”。
e.g. Mr. Zhang is cming with a bk in his hands.张老师手里带着一书进来了。alne 在句中作形容词，不作定语只做表语，也可作副词。意思是“独自地”。e.g. She was alne in that dark rm.她独自一人呆在那黑屋子里。
Lk at the picture frm a science stry fr children and answer the questins.
What have the scientists just received?(a message frm ne f ur spaceships)They have just received a message frm ne f ur spaceships.1. Where has the spaceship landed? (Mars)
It has landed n Mars.
2. What has the spaceship discvered? (peple n Mars)3. Why have the peple n Mars nt sent us a message? (d nt knw hw t)
It has discvered peple n Mars.We d nt knw hw t send us a message.
4. Why have the peple n Mars nt visited us n the earth? (d nt knw hw t)
We d nt knw hw t visit us n the earth.
Write a passage t describe the picture. Use yur answers t the questins in Activity 5 t help yu.We have just received a message frm ur spaceship t Mars … ____________________________________________________________________________________________________________________________________
1. — Where’s Mr Green? — He _____ t Changsha. (2013湖南湘西) A. have been B. has gne C. has been
2. — Is Tm at hme? — N, he______ t twn. (2013天津) A. has been B. has gne C. ges D. will g 3. He prmised t pick me up at the schl gate. Hwever, he _______ yet. (2011安徽)A. didn’t arrive B. desn’t arrive C. isn’t arriving D. hasn’t arrived
4. — What is the weather like this summer here? — There ____ very little rain. (2011广州) A. has B. has been C. are D. have been5. A number f turists ______ Yangzhu many times because it is such a beautiful city. (2013扬州)A. have been t B. has been t C. has gne t D. have gne t
Jurney t space
We have nt fund life
space travel
Scientists have sent spaceship t Mars. The jurney has taken several mnths.
Astrnauts have already been t the mn.
N ne has been t Mars yet, because Mars is very far away, much farther than the mn.
Lts f scientists are wrking hard in rder t send astrnauts t Mars ne day.
Scientists think that there has been life n the Earth fr hundreds f millins f years. Hwever, we have nt fund life n any ther plants yet.
Read the passage.
The Earth is a plant and it ges arund the sun.
Seven ther planets als g arund the sun. Nne f them has an envirnment like that f the earth, s scientists d nt think they will find life n them.
The sun and its planets are called the slar system, and ur slar system is a small part f a much larger grup f stars and planets, called the Galaxy r the Milky Way.
There are billins f stars in the Galaxy, and ur sun is nly ne f them.
Scientists have als discvered many ther galaxies in the universe. They are very far away and their light has t travel fr many years t reach us. S hw large is the universe? It is impssible t imagine.
Scientists have sent spaceship t the planet Mars t take phts. They have even sent spaceships t travel utside the slar system.
Hwever, n spaceship has travelled far enugh t reach ther stars in ur Galaxy.
Lk at the picture and talk abut what yu knw abut Chinese spaceships.Shenzhu-9 is a manned spaceship.
Wrk in pairs
Listen and read
Read the passage and chse the best title fr it. 1. Anyne ut there? 2. Life n the earth 3. The sun and ther stars 4. The stars at night
1. The earth is a star. 2. The sun is a star.3. There is mre than ne galaxy in the universe.
Check (√) the true sentences.
4. The light frm the stars in ther galaxies has travelled fr a lng time t reach us.5. Scientists have received many messages frm space.6. Spaceships have visited mst f the universe.
Cmplete the passage with the wrds and expressin in the bx.
Is there life n ther planets? There are seven ther planets in ur (1) ____________, but (2)______ f them has a(n) (3)____________ like that f the earth.
slar system
Spaceships frm the earth have dne surveys f the ther planets, but they have nt fund any life there. Why has n ne frm ther planets tried t (4) _____________ with us? It is true that scientists have nt discvered life n ther planets in the (5)_________ yet, but sme scientists believe that they will find it sme day.
1. Scientists think that there has been life n the Earth fr hundreds f millins f years. 科学家认为地球上的生命已经有亿万年 了。millins f 数百万 hundreds f 数百thusands f 成千上万 billins f 数十亿
Language pints
e.g. There are billins f stars in the Galaxy, and ur sun is nly ne f them.银河系中有数十亿颗恒星，我们的太阳只是其中的一个。2. Hwever, we have nt fund life n any ther planets yet.然而，我们还没有在任何其他行星上发现生命。
yet 用于否定句和疑问句，意思是“还，尚”。nt … yet 的意思是“还没，尚未”，表示某事物在某一时间尚未发生，但未来也许会发生。例如：I haven’t learnt any farther infrmatin yet. 我还没有得到进一步的信息。Have yu received her letter yet?你收到她的来信了吗？
3. The Earth is a planet and it ges arund the sun. Seven ther planets als g arund the sun.地球是颗行星，它围绕着太阳转。此外还有七颗行星也围绕着太阳转。 太阳系的其他七颗行星：水星(Mercury)、金星(Venus)、火星(Mars)、木星(Jupiter)、土星(Saturn)、天王星(Uranus)、海王星(Neptune)。
4. Nne f them has an envirnment like that f the earth, s scientists d nt think they will find life n them.他们中没有一个有像地球这样的环境，因此科学家们认为在他们上面找不到生命。nne f … 表示（三个以上）一个也没 有。做主语时，谓语动词可用单数或复 数。
e.g. Nne f us has/have been t the Mars. 我们中没一个去过火星。5. … ur slar system is a small part f a much larger grup f stars and planets, called the Galaxy r the Milky Way. 我们的太阳系只是一个由恒星和行星组成的星系的一小部分，这个星系比太阳系大得多，称作银河系或银河。
这里的the Galaxy专指“银河系”，也可以称作 the Milky Way。而galaxy则泛指“星系”。e.g. Scientists have discvered a distant galaxy.科学家们发现了一个遥远的星系。
6. S hw large is the universe? It’s impssible t imagine.所以宇宙有多大？我们无从想象。
句型: It is + 形容词 + t + 动词原形，意思是“做某事很……”e.g. It is difficult t read these wrds. 读这些单词很难。
7. With s many stars in the universe, are we alne, r is there life ut there in space? 宇宙中有这么多星球，我们是孤独的吗？或者太空中还有其他生命存在呢？
with + 名词 + 介词短语，表示伴随情况，意思是“带着……”。
e.g. Mr. Zhang is cming with a bk in his hands.张老师手里带着一书进来了。alne 在句中作形容词，不作定语只做表语，也可作副词。意思是“独自地”。e.g. She was alne in that dark rm.她独自一人呆在那黑屋子里。
Lk at the picture frm a science stry fr children and answer the questins.
What have the scientists just received?(a message frm ne f ur spaceships)They have just received a message frm ne f ur spaceships.1. Where has the spaceship landed? (Mars)
It has landed n Mars.
2. What has the spaceship discvered? (peple n Mars)3. Why have the peple n Mars nt sent us a message? (d nt knw hw t)
It has discvered peple n Mars.We d nt knw hw t send us a message.
4. Why have the peple n Mars nt visited us n the earth? (d nt knw hw t)
We d nt knw hw t visit us n the earth.
Write a passage t describe the picture. Use yur answers t the questins in Activity 5 t help yu.We have just received a message frm ur spaceship t Mars … ____________________________________________________________________________________________________________________________________
1. — Where’s Mr Green? — He _____ t Changsha. (2013湖南湘西) A. have been B. has gne C. has been
2. — Is Tm at hme? — N, he______ t twn. (2013天津) A. has been B. has gne C. ges D. will g 3. He prmised t pick me up at the schl gate. Hwever, he _______ yet. (2011安徽)A. didn’t arrive B. desn’t arrive C. isn’t arriving D. hasn’t arrived
4. — What is the weather like this summer here? — There ____ very little rain. (2011广州) A. has B. has been C. are D. have been5. A number f turists ______ Yangzhu many times because it is such a beautiful city. (2013扬州)A. have been t B. has been t C. has gne t D. have gne t
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