初中英语Unit 2 We have not found life on any other planets yet备课课件ppt

这是一份初中英语Unit 2 We have not found life on any other planets yet备课课件ppt，共28页。PPT课件主要包含了埃德温·艾尔德林 ，Who is he，none，universe，doubt，根据句意写单词，light，None，grow，galaxy等内容，欢迎下载使用。
1. Hw many planets are there in the universe? 2. Is there any life n ther planets?
Lead in Discuss smething abut the universe.
The Earth, the Sun, Mars, the mn
N, maybe there will be in the future.
Yuri Gagarin, Sviet Unin12, April,1961
1968 年12月27日,阿波罗8号——第一次载人的月球行动，在完成了历时六天的历史性航行之后，安全返回地球。
1986年1月28日,“挑战者”号航天飞机在肯尼迪航天中心发射升空不久后爆炸。
环绕地球飞行的宇航员每“天”可以看见16次日出和16次日落。
He is China’s first astrnaut.
The Shenzhu-V spacecraft rbited the Earth 14 times at an altitude f 343 kilmetres. The space flight lasted 21 hurs by Yang Liwei in Octber, 2003. Yang Liwei was called “China’s first astrnaut”.
nneenvirnmentslarsystemslar systemgrupgalaxyuniverseimpssiblecmmunicate
prn. 没有一个n. 环境adj. 太阳的，与太阳有关的n.系统，体系星系，(尤指)太阳系n. 群，组n. 星系 n. 宇宙adj. (事情)办不到的，不可能的v. 联系，交流
Presentatin
Wrds and expressins
A. galaxyB. planet C. slar systemD. star E. universe
Match the wrds with the pictures.
1. Anyne ut there?2. Life n earth3. The sun and the stars4. The stars at night
Read the passage and chse the best title fr it.
Check (√) the true sentences.
1. The earth is a star.2. The sun is a star.3. There is mre than ne galaxy in the universe.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 areeight planets in ur ____________,but _____ fthem has a(n) _____________like that f theearth.Spaceships frm the earth have dnesurveys f ther planets, but they have nt fundany life there. Why has n ne frm ther planetstried t ___________ with us? It is true that scientistshave nt discvered life n ther planets in the________yet, but sme scientists d nt ______ thatthey can find it sme day.
slar system
cmmunicate dubt envirnment nne slar system universe
1.Hwever, we have nt fund life n any ther planetsyet.但是，我们在其他星球上还没有发现生命。 the ther (s)与ther (s)的区别：(1) the ther与ther后可加名词; the thers与thers后不加名词；(2) the ther (s)表示一定范围内除去一部分以外后其余 的全体；ther (s)表示除去一部分以后的（一些）， 但不是剩下 的全体。
Language Pints
One flwer is red, the ther (ne) is white.一朵花是红的，另一朵 (花) 是白的。Give me sme ther apples/thers, please!请另给我一些（苹果）吧！
2. Nne f them has an envirnment like that f the earth. 它们中没有一个有像地球这样的环境。n ne与nne的区别：(1) n ne同义词为 nbdy, 只用于指人，其后不跟f短语，作主语时谓语用单数，n ne 只能回答以wh开头的问句；
(2) nne用于表示对三者或三者以上全部否定，既可指人，也可指物。作主语时，谓语可以是单数，也可以是复数; nne的反义词是all, nne可与f连用; 可以用来回答Hw many 或 Hw much开头的问句。
Nne f us are/is interested in the stry.我们没有人对那个故事感兴趣。—Wh are yu speaking t?——你在跟谁讲话？—N ne. ——没人。—Hw many students are there in the rm?——房间里有多少个学生?—Nne.——一个也没有。
3. With s many stars in the universe, are we alne？宇宙中有这么多的恒星，我们是唯一的吗？alne与lnely的区别：(1) alne既可作形容词，又可作副词,意为“单独的/地，独自的/地”，没有感情色彩。(2) lnely只作为形容词，意为“孤独的，寂寞的”，具有感情色彩。He lived alne after his wife left，s he was very lnely .他妻子离开后，他一个人生活，所以他很孤独。
— What have the scientists just heard? (a message frm a spaceship)
— They’ve just heard a message frm a spaceship.
Lk at the cartn picture and answer the questins.
1. Where has the spaceship landed? (Mars)2. What has the spaceship discvered? (peple)3.Why have the peple n Mars nt sent us a message? (dn’t knw hw t)4. Why have the peple n Mars nt visited us n earth? (dn’t knw hw t)
We’ve just heard that ur spacecraft has landed n Mars, and we’ve discvered…
Write the stry in the picture. Use the answers t the questins in Activity 5 t help yu.
We’ve just had sme news abut the missin t explre Mars. Scientists have just heard that the spaceship has landed n Mars and has discvered peple. These peple haven’t sent us a message because they can’t hear us. They haven’t visited the earth because they prefer life n Mars. They have used parts frm the ther spacecraft frm earth t make TVs, radis and cars.
Pssible versin:
1. Everyne knws ______ travels much faster than sund.2. ______ f us like this bad TV prgramme.3. The flwers will _____ well if they get enugh water.4. The slar system is a small part f ur________.5. We haven’t ________ life n ther planets yet.
1. I have been t America befre.（变成一般疑问句） _________________________________2. have, finished, nt, I, hmewrk, my（连词成句） _________________________________ 3. She ___________ the Great Wall twice.（选 has gne t/has been t 填空）
Have yu been t America befre?
I have nt finished my hmewrk.
4. S far, I learned mre than 1,000 new wrds.（改错）5. I think he will cme t yur birthday party.（改为否定句） I _____ _____ ___ ____ cme t yur birthday party.
have learned
HmewrkGet mre infrmatin abut planets.