Unit 4 Life on Mars Reading 1 课件（23张PPT）

(共23张PPT)
9B Unit 4 Reading 1
Moving to Mars
1. To learn about the challenges of moving to Mars
2. To know the advantages and disadvantages of living on Mars
3. To learn some new words and phrases in this passage
Unit 4 Moving to Mars Reading 1
Learning Objectives
Lead-in
Why is the Earth wandering
Where will the Earth go
the Solar System
Pre-reading
population
crowded
polluted
Background
Background
Some people believe that humans could live on the planet Mars by the year 2100.
surface
Why Mars
Para. 1
Para. 2
Para. 3
Para. 4
Para. 5
Para. 6
Para. 7
better life
gravity and clothes
school
transport
interesting and challenging
food, water and air
problems on the Earth
Structure
Part 1
Part 2
Part 3
Part 4
Para. 1
Paras. 2-4
Paras. 5-6
Para. 7
Problems on the Earth
Disadvantages of life on Mars
Advantages of life on Mars
Conclusion
Structure
Question: Why do we need to move to Mars
The earth is becoming more and more crowded and polluted because of the rapid increase in population.
Scanning
Para 1
our spacecraft are too s____ to c____ large numbers of p_________. It would take _______.
With the development of technology, the spacecraft can travel at the speed of l____.
We may feel _____________ and____.
The journey to Mars might only take 20 m________.
low
arry
months
ight
uncomfortable
ill
inutes
At present
By the year 2100
assengers
Scanning
Para 2
1.Humans can survive without water, oxygen or food． ______ 　　　　　　　　　　　　
2.We don’t know whether there would be enough water, ______
oxygen on Mars．
　　　　　　　　　
3.Scientists are sure whether plants could grow on Mars. ____　　　　　　　　　　　　　　　　　　
4.Food would most probably be in the form of pills． 　 ______　　　　　　　　　　　　　　　　　
5.Food on Mars is more delicious than it on the Earth. 　 ______　　　　　　　　　　　　　　　　　　　　
F
T
F
T
F
can’t

aren’t

less

Scanning
Para 3
If an elephant weighs 64kg on the Earth, how much does it
weigh on Mars
A. 24kg B. 34kg C. 64kg D. 32kg
Scanning
Para 4
√
2.Why do people have to wear boots on Mars
A. Because they are beautiful and fashion.
B. Because they can prevent people from floating off into space.
C. Because they can give people oxygen.
D. Because they are comfortable and cheap.
Scanning
Para 4
√
In what ways life on Mars would be better than that on the Earth
People would have more space. They might live in houses with huge comfortable rooms.
Also, robots would do most of their work so that they could have more time to relax.
Scanning
Para 5
a real school on the Earth
online schools on Mars
Students get up early and go to school every day.
Students have lessons with their classmates at school.
There would probably be no schools.
Students would study at online schools with “e-teachers”.
Every student would have a computer connected to an interplanetary network.
Scanning
Para 6
Scanning
Para 7
What does the writer think of the life on Mars
Life on Mars would be interesting as well as challenging.
Life on the Earth today Life on Mars in 2100
It is polluted and crowded. It would be clean and have lots of space.
Spacecraft are slow. Spacecraft would travel ______________________.
There is enough water and oxygen. Nobody knows whether there would be enough ________________ on Mars.
There are many kinds of tasty food. Food would probably be _________________.
Gravity is not a problem for us. About ________________________ on the Earth.
Many people live in small flats. People might live in _______________________________.
People have little time to relax. _________________________________ so that people could have more time to relax.
We study at real schools. Students would study at_____________ .
at the speed of light.
three-eighths of the gravity
houses with huge comfortable rooms
online schools
in the form of pills
Robots would do most of their work
water or oxygen
Let’s summarize
Earth
由于人口的快速增长 because of the rapid increase in population
有望…… It’s hoped that……
3. 在火星上创造一个更好的世界 create a better world on Mars
4. 随着科技的发展 with the development of technology
5. 光速运行 travel at the speed of light
6. 以药片的形式 in the form of pills
7.大约只有地球重力的八分之三
only about three fifths of the gravity on Mars
8. 穿特制的靴子 wear boots that are specially designed
9. 飘进了太空 float off into space
10. 与地球上的生活作比较 compared with life on the Earth
11. 一台连接到星际网络的电脑
a computer connected to an interplanetary network
12. 既有趣又富有挑战性的 interesting as well as challenging
Translation
Fill in the proper word
1.Both Earth and Mars are p_____________.
2.Can you __________(to form a picture in your mind of what something might be like)
a blue horse with a yellow tail
3.There is a small boat ___________(to move slowly in the air or on the water) on the river.
4.The dog waited _____________(怀着希望地) beside the table for some food.
5.Many cities are becoming more and more c_____________ because of too many people.
6.The water has been ______________(pollute) by the waste from the factory.
7.The soup has very little ____________.(tasty)
8.The coat is so tight and I think it will make you feel ___________.(comfortable)
lanets
imagine
floating
hopefully
rowded
polluted
taste
uncomfortable
Homework
Design a poster to show your ideal life on Mars.
Search on the Internet for more information about Mars.