we_have_not_found_life_on_any_other_planets_yetPPT

What do you think of (想到) when you see the Moon?

Is she alone?

Chang’e has gone to the Moon.

Armstrong from the USA 

Astronauts have already been to the Moon.

Have they discovered any life on the Moon?

The Moon doesn’t have an environment with air.

So, People and things can’t grow there.

... ... ...

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 of years. 

However, we haven’t found life on other planets yet. Why not ?

... ... ...

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 in space?

choose the best title.

Anyone out there?

Life on Earth

Our solar system 

The stars at night

... ... ...

Do you think they’re right or not?

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. Scientists  have   found life on other planets.

7. They’ve  received many messages from space.

8. They’ve  visited  most  of  the  universe.

... ... ...

Look at the cartoon picture and answer the questions.

Example:What have the scientists just heard?   (message from spacecraft) 

They've 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 haven't they sent us a message? (can't hear us ) 

Because they can't hear us. 

4.Why haven't 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) 

They've made TVs, radios and cars.

... ... ...

homework:

According to the picture,go on writing

We’ve just heard that our spacecraft has landed on Mars, and we’ve……

《We have not found life on any other planets yet》journey to space PPT课件3 Astronauts have already been to the moon. Scientists have sent spaceship to Mars. The journey..

《We have not found life on any other planets yet》journey to space PPT课件2 Revision Scientists have sent spaceship to Mars. The journey has taken several months. Astron..

Revision

Scientists have sent spaceship to Mars. The journey has taken several months. 

Astronauts have already been to the moon.

No one has been to Mars yet, because Mars is very far away, much farther than the moon.

Lots of scientists are working hard in order to send astronauts to Mars one day.

... ... ...

Read 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 

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 space.

6. Spaceships have visited most of the universe.

... ... ...

Language points

1. Scientists think that there has been life on the earth for hundreds of millions of years. 

科学家认为地球上的生命已经有亿万年了。

millions of 数百万   hundreds of 数百

thousands of 成千上万 billions of 数十亿

e.g. There are billions of stars in the

Galaxy, and the sun is only one of them.

银河系中有数十亿颗恒星，太阳只是其中的一个。

2. However, we have not found life on any other 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”。not … 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 information yet. 

我还没有得到进一步的信息。

Have you received her letter yet?

你收到她的来信了吗？

3. The earth is a planet and it goes around the sun. Seven other planets also go around 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)。

... ... ...

What have the scientists just received?

(a message from one of our spaceships)

They have just received a message from one of our spaceships.

1. Where has the spaceship landed? (Mars)

It has landed on Mars. 

2. What has the spaceship discovered? (people on Mars)

It has discovered people on Mars.

3. Why have the people on Mars not sent us a message? (do not know how to)

We do not know how to send us a message.

4. Why have the people on Mars not visited us on the earth? (do not know how to)

We do not know how to visit us on the earth. 

... ... ...

1. — Where’s Mr Green?    

— He _____ to Changsha. (2013湖南湘西)

A. have been

B. has gone

C. has been

2. — Is Tom at home? 

— No, he______ to town. (2013天津) 

A. has been         B. has gone     

C. goes               D. will go 

3. He promised to pick me up at the school gate. However, he _____ yet.  (2011安徽)

A. didn’t arrive  B. doesn’t arrive        

C. isn’t arriving     D. hasn’t arrived

... ... ...

《We have not found life on any other planets yet》journey to space PPT课件3 Astronauts have already been to the moon. Scientists have sent spaceship to Mars. The journey..

《We have not found life on any other planets yet》journey to space PPT课件 What do you think of (想到) when you see the Moon? Is she alone? Change has gone to the Moon. ..