新外研版八年级下册M3U2

1、Module 3,Journey to space,The earth is a _ and it _ the sun.,Scientists think that there has been life on the earth for _ years.,Lead in,planet,goes around,hundreds of millions of,数以百万计的,However, have we found life on any other planets yet?,Unit 2,We have not found life on any other planets yet.,non

2、e environment that solar,pron. 没有一人；没有 一个；一点儿也 没有 n. 环境 pron. 那；那个（指代 已被提及的事物） adj. 太阳的；与太阳有 关的,Words and expressions,system solar system group galaxy universe,n. 系统；体系 星系；（尤指） 太阳系 n. 群；组 n. 星系 n. 宇宙,Words and expressions,light impossible out communicate,n. 光；光线；光亮 adj. （事情）办不 到的，不可能的 adv. 在远方 v. 联系

3、；交流,Words and expressions,Look at the picture and talk about what you know about Chinese spaceships. Shenzhou-9 is a manned spaceship.,Work in pairs,1. Anyone out there? 2. Life on Earth 3. The sun and other stars 4. The stars at night,Read the passage and choose the best title for it.,planets,the S

4、un,the Earth,Mars,the solar system,行星,200 billion stars,Its a part of the universe(宇宙).,the Milky Way,A. galaxy B. planet C. solar system D. star E. universe,Match the words with the pictures.,A,B,C,D,E,B,Put the words and expressions from the smallest to the largest :,A. galaxy B. planet C. solar s

5、ystem D. star E. universe,B,D,C,A,E,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. Scientists have received many messages from spac

6、e. 6. Spaceships have visited most of the universe.,Answer some questions about the passage:,1.Have we found life on Mars?,2.How many planets are there in the solar system?,3.Which is larger, the galaxy or the universe?,4.What have scientists done to look at other planets?,5.Is there life out there

7、in space?,No, we havent.,Eight.,The universe.,They have sent lots of spaceships.,We dont know , we have never found any life on other planets .,The 1st Para. Questions:,1.How long has there been life on the earth? 2.Have we found life on any other planets yet?,There has been life on the earth for hu

8、ndreds of millions of years.,No, we havent.,1.What is called the solar system? What is it? 2.How many planets are there in the solar system? 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

9、 Milky Way.,The 2nd Para. Questions:,There are eight planets.,Because none of them has an environment like that of the earth.,What 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 fa

10、r away and their light has to travel for many years to reach us.,The 3rd Para. Questions:,Scientists have _ the planet Mars to _. They have even sent spaceships to _ the solar system. However, no spaceship has travelled _ other stars in our Galaxy.,The 4th Para.,sent spaceships to,take photos,travel

11、 outside,far enough to reach,1.成百万年 2.在其它的行星上 3.绕太阳转 4.他们中没有人 5.被叫做 6.太阳系 7.一小部分 8.几十亿的星星 9.在宇宙中 10.许多其他的星系 11.距离好远 12.不得不，必须 13.足够远 14. 如此多 15.和某人联系,millions of years on any other planets go around the sun none of them be called the solar system a small part of billions of stars in the universe man

12、y other galaxies far away have/has to far enough so many communicate with sb.,phrases Key,Language points,1. Scientists think that there has been life on the earth for hundreds of millions of years. 科学家们认为地球上的生命已经有上亿年的历史。,hundred前加基数词，表示“一百、二百、三百”，hundred要用单数形式；hundred与of连用表示“数百”时，hundred要用复数形式，即hun

13、dreds of。,例如： There are eight hundred students in our school. There are hundreds of people in the park.,We planted _ trees last year. A. hundreds of B. hundred of C. five hundreds D. five hundred of,thousand, million, billion和hundred的用法相同。,Practise,2. With so many stars in the universe, are we alone

14、, or is there life out there in space? 宇宙中有这么多星球，我们是孤独的吗？抑或太空中还有其他生命存在呢？ With so many things to do, we have no time to play. 要做的事情这么多，我们都没时间玩了。,with so many stars in the universe是介词短语，作伴随状语。类似的例子还有：,The woman stood there with her hands in the pockets. 那个女士站在那里，手插在口袋里。,Practise, Why do you always sle

15、ep _? Because Im afraid of the dark. A. by yourself B. with the door open C. with the window open D. with the light on,3. None of them has an environment like that of the earth, so scientists do not think they will find life on 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。 none of 表示（三个以上）一个也没有。 做主语时，谓

16、语动词可用单数或复数。,e.g.我们中没一个人去过火星。,None of us has/have been to Mars.,注意：none 与no one（nobody） 的区别： none既可指人也可指物，通常与表范围的of 短语连用；no one(=nobody)只能指人，不能与of 短语连用。 如： None of us has / have been to Sanya. 我们都没去过三亚。,(2) none与数量有关，可回答how many问句，表示“一个也没有”；而no one表示“什么人也没有”，可回答who问句。如：,-Who are you speaking to?-_. -

17、How many students are there in the room? -_.,No one,None,that是指示代词。为避免重复，可用 that 或 those 来 代替前面已提到过的人或事物； The air in the countryside is fresher than _in the city. The streets in the city are wider and the buildings are taller than _ in the county. The environment is much cleaner than _ in the city.

18、The population of Shanghai is much larger than _ of Nanning.,that,those,that,that,4. However, no spaceship has traveled far enough to reach other stars in our Galaxy. 然而，没有一个航天器去到足以到达我们银河系其他恒星那么远的地方。 enough to do adj./ adv. + enough + to do sth. 足够，可以 not + adj./ adv. + enough + to do sth. 不够，不可以 (1

19、) 我们有足够的钱花。 We have _. (2) 他跑得够快，很快追上了我们。 He ran _ catch up with us soon. (3) 他年龄不够大，照顾不了自己。 He _.,enough money to spend,fast enough to,isnt old enough to look after himself,Complete the passage with the words and expression in the box.,communicate environment none solar system universe,Is there lif

20、e 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 system,none,environment,Spaceships from the earth have done surveys of the other planets, but they have not found any life there. Why has no one from other planets tried to (4)

21、_ 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,universe,Quiz,. 用方框中的单词的正确形式完成下列句子。 1. _ of the students has been to Australia. 2. A: How much is your new coat. B: It _ me 150 yu

22、an.,billion cost planet alone none,None,cost,3. A: Do you often go online, Zhao Hui? B: No. I like to go online when I am _ at home. 4. A: How many people are there in China now? B: It has reached 1.3 _. 5. The boy is only five years old, but he knows about many _.,alone,billion,planets,. 用already, yet, just, ever或never完成下列句子。 1. I ha