(共29张PPT)
9B Unit 1
Reading
air pollution
population
Large/Big
crowded
more and more crowded
The color of Mars:_____________
red
Mars
the solar system 太阳系
Earth
Mars
the surface of Mars
The surface of Mars is a little like the surface of Earth.
It may be difficult to imagine, people will live on the planet Mars.
by the year 2100
spacecraft
too slow to carry large numbers of people to Mars
spaceshuttle
travel at half the speed of light
Match the words and the meaning
Small round pieces of medicine
A power that keeps us from floating in the air
A vehicle designed for travel in space
Grow and improve
People who go to live in a new place
A large body in space that moves around the star, e. g., the sun
Machines that can do tasks under the control of computer
planet
gravity
spacecraft
settlers
develop
robots
pills
Read the article quickly and find out the keyword of each paragraph.
Crowded, polluted (population , pollution)
Transport
Food, water and air
Gravity
Home
School
Food
Para 1
Para 2
Para 3
Para 4
Para 5
Para 6
Para 7
Read each paragraph carefully and find out the answers to the questions .
Why do people need to move to Mars
Earth is becoming more and more crowded and polluted .
1. What vehicle do people use to Mars at present And how long does it take
2. What vehicle may people use to go to Mars in the future And how long will it take
( Spacecraft . Months.)
(Space shuttles. Only a very short time.)
What will scientists do to solve the problems of food , water and air
( Scientists will develop plants that can grow on Mars and produce the food, water and oxygen .)
Air, water, food
1. Is gravity on Mars a big problem Why
( Yes, it is. Because the gravity on Mars is three-eighths of the gravity on Earth. )
2. What may happen then
( People may jump high easily and float away into space.)
3. What kind of shoes should people wear
(People should wear special boots to make themselves heavier.)
Gravity
1. What kind of house may people live in
( A special dome with 10 bedrooms is highly possible.)
2. Who will do most of our work
(Robots will do most of our work.)
Home
What kind of school will students study in And what do they call their teacher
( Students can study in online schools and they call their teacher ‘e-teacher’.)
School
What will food on Mars be like
Maybe the food will be in the form of pills and will not be as tasty as they are today.
Food
Differences between life on Earth and life on Mars
Earth today Mars in 2100
Polluted and crowded
Spacecraft are slow
Gravity is not a problem for us
People can wear many types of shoes
People do not have much space
we take exams at school
we have many different kinds of food
clean and has lots of space
Space shuttles are very fast
It will be a big problem
We must wear helmets
We have more space
In online schools
Food will be the same
crowded planet
space shuttles
speed boots
space home
robot settlers
online teacher
The population on Earth is still increasing quickly. Move to …
All about NASA’s new model of spacecraft …
Our shoes can make you walk faster!
Living in a round house is fun …
Robots could be the first to live on …
Need someone to teach you any time, at any place
Daniel is looking for more information on the Internet. Help him find out the links to the key words.
Discuss advantages and disadvantages of living on earth.
Advantages of living on Mars
It’s not _________or________.
The ________ is more convenient .
People will wear special _____
People will have ______space .
______ will do most of our work.
We’ll have more time for_______.
Students will study in ______ schools.
crowded polluted
transport
boots .
more
Robots
hobbies
online
Disadvantages of living on Mars
Low _______ will be dangerous.
Food does not taste _____.
Space travel make people feel ________.
It’s too ________to stay outside.
It’s too ______ away from friends on Earth.
gravity
good
ill / sick
cold
far
Exercises
I 用所给词的适当形式填空:
Earth is becoming more and more _____ (crowd).
Every year, large numbers of tourists ______ (come) to visit Beijing.
This pair of boots looks very ______ (fashion).
There will be no _________ (pollute)on Mars.
The news maker her ____ (feel) sad.
_______ (science)are working hard to make the dream become true.
come
pollution
fashionable
crowded
Scientists
feel
Homework:
1、Make a short passage about "Life on Mars".
2、Read the passages carefully.
Goodbye!
Thank you!