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1、Unit 2 We havent found life on other planets yet.,Module 3 Journey to space,Are you interested in space?,What do you think of (想到) when you see the Moon?,Change has gone to the Moon.,Is she alone?,单独的,Astronauts have already been to the Moon.,Armstrong from the USA,Have they discovered any life on t
2、he Moon?Why?,The Moon doesnt have an environment with air.,环境,So,People and things cant grow there.,生长,Fast reading,1 How long has the life been on the earth ?2 How many stars in our galaxy ?3 Who has discovered any life in space yet ?,Scientists think that there has been life on Earth for millions
3、of years. However, we havent found life on other planets yet. Why not ?,The Earth is a planet and it goes around the sun. Seven other planets also go around the Sun. None of them has an environment with air, so people and things cannot grow. The Sun and its planets are called the solar system. The s
4、olar system is a small part of our galaxy.,The stars we see at night are the suns in other solar systems. There are more than 200 billion stars in our galaxy, called the Milky Way, and our Sun is only one of them.,But scientists have discovered many other galaxies in the universe. They are a long wa
5、y away and their light has travelled for many years to reach us. It is hard to understand how large the universe is.,Scientists have sent lots of spacecraft to look at other planets in our solar system ,and some spacecraft have gone beyond the solar system. However, no one has discovered any life in
6、 space yet.,But why has no one from other planets sent us a message? Have they tried to send information to us? With so many stars in the universe, are we alone, or is there life out there in space? We dont know yet.,Answer some questions about the passage:,1.Have we found life on Mars?,2.How many p
7、lanets 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 in space?,No, we havent.,Eight.,The universe.,They have sent lots of spacecraft.,We dont know , we have never found any life on other p
8、lanets .,choose the best title.,Anyone out there?Life on EarthOur solar system The stars at night,planets,the Sun,the Earth,Mars,the solar system,行星,200 billion stars,Its a part of the universe(宇宙).,the Milky Way,Match the words with the pictures,galaxy,planet,solar system,star,universe,太阳,Put the w
9、ords and expressions from the smallest to the largest :,A. galaxy B. planet C. solar system D. star E. universe,B,D,C,A,E,1. The Earth is a star.2. The Sun is a star. 3. There is more than one galaxy. 4. Our galaxy is part of the Milky Way.,5. The light from stars has taken a long way to reach us. 6
10、. Scientists have found life on other planets.7. They ve received many messages from space.8. They ve visited most of the universe.,a planet.,havent,havent,havent,Do you think theyre right or not?,Our galaxy is called the Milky Way .,信息,大部分,Fill in the blanks,1 The Sun is a _ in the solar system . T
11、he Earth is a _and it goes around the Sun .2 Altogether there are _ planets around the Sun .3 There are more than 200 billion stars in _4 There are many galaxies in the _5 We have sent lots of spacecraft to _, but we _on other planets.,star,planet,eight,galaxy,universe,competition,the first astronau
12、t in the world,Yuri Gagarin,The first person who landed on the moon,Arm Strong,The first woman astronaut,捷列什科娃,The first person who walked in space,列昂诺夫,The first women spacecraft driver,柯斯林,生物,UFO,E.T.,superman,Do you believe(相信) there are any living creatures in outer space?,Look at the cartoon pi
13、cture and answer the questions.,Example:What have the scientists just heard? (message from spacecraft) Theyve just heard a message from a spacecraft.,1.Where has it landed? (Mars),It has just landed on Mars.,2.What has it discovered? (people),It has just discovered people.,3.Why havent they sent us
14、a message? (cant hear us ),Because they cant hear us.,Look at the cartoon picture and answer the questions.,4.Why havent they visited us on Earth? (prefer life on Mars),Because they prefer life on Mars.,5.What have they made with the other spacecraft? (TVs, radios, cars),Theyve made TVs, radios and cars.,Weve just heard that our spacecraft has landed on Mars, and weve,homework:,According to the picture,go on writing,Miss Zhao wish: I hope some of you will become scientists and send spacecraft with astronauts to the space one day. So you should study hard now. And your dream will come true.,