初中英语外研版八下Module 3 Journey to space Unit 2 课件+音频(共20张PPT)

(共20张PPT)
Journey to space
Module 3
Unit 2
We have not found life on any other planets yet.
1. 能掌握本课时的单词、短语和句型。
单词：none, environment, impossible, out, communicate, universe, group …
短语：millions of, go around, far away, solar system …
句型：We have not discovered life on any other planets yet.
They have even sent spaceships to travel outside the solar system.
No spaceship has travelled far enough to reach other stars in our Galaxy.
2. 能够读懂以太空为主题的简单文章并能识别细节，做出正误判断。
3. 通过了解中国在太空探索领域取得的伟大成就，形成民族意识和民族自豪感。

1. How many planets are there in our
solar system
2. Is there any life on other planets
Free talk.
Shenzhou-9 is a manned spaceship.
1. Work in pairs. Look at the picture and
talk about what you know about
Chinese spaceships.
1. Anyone out there
2. Life on Earth
3. The sun and other
stars
4. The stars at night
Fast reading.
Read the passage and choose the best title for it.
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 hundreds of millions of years.
No, we haven’t.
Careful reading.
1. What is called the solar system What is it
2. How many planets are there in the solar system
3. Why don’t scientists think they’ll 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 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
They’ve discovered many other galaxies in the universe.
Because they are very far 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 outside
far enough to reach
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.
√
√
×
√
×
×
Is there life on other planets There are seven other planets in our (1) ___________,
but (2) _____ of them has a(n) (3)___________ like that of the earth. Spaceships from the
Complete the passage with the words
and expression in the box.
communicate environment none
solar system universe
solar system
none
environment
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) _____________ 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
What have the scientists just received
(a message from one of our spaceships)
They have just received a message from one of
our spaceships.
Where has the spaceship landed (Mars)
2. What has the spaceship discovered (people on Mars)
The spaceship has landed on Mars.
The spaceship has discovered people on Mars.
Writing
3. Why have the people on Mars not sent us a
message (do not know how to)
4. Why have the people on Mars not visited us
on the earth (do not know how to)
Because they do not know how to sent a
message to us.
Because they do not know how to get to the earth.
Write a passage to describe the picture.
Use your answers to the questions in
Activity 5 to help you.
We have just received a message from our spaceship to Mars …
We have just received a message from our spaceship to Mars. Our spaceship has discovered aliens there. They have never sent us a message because they don’t know how to communicate with us. They have not visited the earth because they don’t know how to fly to our planet, and they prefer life on Mars. They seem very happy on their planet. They have used parts from the other spaceships from the earth to make TVs, radios, etc. We hope they don’t do the same with this one!
Possible answer:
1. 地球是行星，它围绕太阳运转。
The Earth is a planet and it
_____________ the Sun.
2. 为什么不把书带回来？
____________________ the book
3. 没有一个学生去过英国。
_______ the students __________
England.
goes around
Why not bring back
None of
has been to
根据汉语提示完成英语翻译。
4. 完成今天的作业不容易。
_______________ today’s homework.
5. 我刚读过有关火星的书。
I ____________ books _____ Mars.
6. 从其他星系到我们这里要花费很多年。
It _____ many years _______ us
from other galaxies.
It’s hard to finish
have just read about
takes to reach
1. 掌握了本单元单词和短语。
2. 学习了以太空为主题的文章。
3. already, just, yet在现在完成时中的正确应用。
1. Remember the words and expressions.
2. Finish the workbook.