9B Unit 1 9B Unit 1 Reading air pollution population large crowded more and more crowded.

9B Unit 19B Unit 1

ReadingReading

air pollution

population

largelarge

crowdedcrowded

more and more more and more crowdedcrowded

The color of Mars:_____________The color of Mars:_____________redred

MarsMars

the solar system 太阳系

It’s between Earth and Jupiter in It’s between Earth and Jupiter in

our solar system.our solar system.

EarthEarthJupiterJupiter

MarsMars

the the surfacesurface of Mars of Mars

The surface of Mars is a little like The surface of Mars is a little like

the surface of Earth.the surface of Earth.

The lowest temperature will be -133 ℃The lowest temperature will be -133 ℃

(degrees centigrade) and the highest will (degrees centigrade) and the highest will

be 27 ℃be 27 ℃

It may be difficult to imagine, people will live on the planet Mars.

by the year 2100

spacecraftspacecraft

too slow to carry large numbers of too slow to carry large numbers of

people to Marspeople to Mars

spaceshuttlespaceshuttlespaceshuttlespaceshuttle

travel at half the speed of lighttravel at half the speed of light

helmethelmet

special bootsspecial boots

space suitspace suit

domedome

The Mars will turn into another earth in The Mars will turn into another earth in

the future.the future.

connect to an interpanetary networkconnect to an interpanetary network

Listen to the recording and answer the following questions. 1. Why do people need to move to Mars ?

2. How long will it take to flay to Mars at present?

3. How will students study, do their homework and take exams on Mars?

4. Will space travel make people feel ill?

5. Will gravity on Mars be a big problem?

Earth is becoming more and more crowded and polluted .

Several months.

They can study, do their homework and take exams in online schools.

Yes .

No. We will wear special boots.

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.)( Spacecraft . Months.)

(Space shuttles. Only a very short time.)(Space shuttles. Only a very short time.)

Read each paragraph carefully and find out Read each paragraph carefully and find out the answers to the questions . the answers to the questions .

3 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 .)

4 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.)

Air, water, foodAir, water, food

5 Is gravity on Mars a big problem? Why?5 Is gravity on Mars a big problem? Why?

( Yes, it is. Because the gravity on Mars is three-( Yes, it is. Because the gravity on Mars is three-eighths of the gravity on Earth. )eighths of the gravity on Earth. )

6 What may happen then? 6 What may happen then?

( People may jump high easily and float away ( People may jump high easily and float away into space.)into space.)

7 What kind of shoes should people wear?7 What kind of shoes should people wear?

(People should wear special boots to make (People should wear special boots to make themselves heavier.) themselves heavier.)

GravityGravity

8 What kind of house may people live in ? 8 What kind of house may people live in ?

( A special dome with 10 bedrooms is highly ( A special dome with 10 bedrooms is highly

possible.)possible.)

9 Who will do most of our work? 9 Who will do most of our work?

(Robots will do most of our work.)(Robots will do most of our work.)

HomeHome

10. What kind of school will students study in? 10. What kind of school will students study in?

And what do they call their teacher? And what do they call their teacher?

( Students can study in online schools and ( Students can study in online schools and

they call their teacher ‘e-teacher’.)they call their teacher ‘e-teacher’.)

SchoolSchool

Differences between life on Earth and life on MarsDifferences 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 spaceIn online schools

Food will be the same

Discuss advantages and Discuss advantages and

disadvantages of living on earth.disadvantages of living on earth.

Advantages of living on Mars

1. It’s not _________or________.

2. The ________ is more convenient .

3. People will wear special _____

4. People will have ______space .

5. ______ will do most of our work.

6. We’ll have more time for_______.

7. Students will study in ______ schools.

crowded polluted

transport

boots .

more

Robots

hobbies

online

Disadvantages of living on Disadvantages of living on MarsMars

1. Low _______ will be dangerous.

2. Food does not taste _____.

3. Space travel make people feel ________.

4. It’s too ________to stay outside.

5. It’s too ______ away from friends on Earth.

gravity

good

ill / sick

cold

far

1  There will be various designs for settlers to choose fr

om. 将有许多种设计可供移居者选择。

to choose from … 意思是“从……中挑选”。

e.g. 我有很多双鞋子可以选择，但我决定不了选哪双。

I have many pairs of shoes _____________

(to choose from), but I don’t know which pair __

________. (to choose)

2 The journey might take only a very short time in sp

ace shuttles that travel at half the speed of light. 用以光速一半速度飞行的太空穿梭机进行的旅程可能只要花很短的时间。

分析：此句是 that 连接的定语从句。 that 引导的定语从句修饰先行词 space shuttles, 从句中的动词的人称和数由先行词 space shuttles 决定。

3. Compared with life on Earth, life on Mars will be bet3. Compared with life on Earth, life on Mars will be bet

ter in many ways. ter in many ways. 与在地球上的生活相比与在地球上的生活相比 , , 火星上火星上

的生活在很多方面将会更好的生活在很多方面将会更好 . .

compare with … compare with … 意思是“ 与……做比较”。在句中意思是“ 与……做比较”。在句中

是过去分词短语作状语是过去分词短语作状语 , , 此时此时 withwith 和和 toto 可通用。 可通用。

e.g. e.g. 与我们的那条路相比与我们的那条路相比 ,, 这条路繁忙得多 。这条路繁忙得多 。

This road is quite busy______ ____ ours. (cThis road is quite busy______ ____ ours. (c

ompared … with / to )ompared … with / to )

4. Every student will have a computer at home connect

ed to inter-planetary network. 每个学生在家里有一台连接星际网络的电脑。

connect to 意思是“与……连接”。这里的 connect

ed to 是过去分词后置作定语 , 修饰 computer 。当然我们也可以用 connect … to… 结构表示“把…… 和……连接起来 ”。

e.g. 江阴大桥把江阴和靖江连接了起来 .

Jiangyin Bridge _______ Jiangyin ___ Jingjiang.

(connects … to )

呈现药片的形状

使某人感到非常难受

in the form of pills

make sb. feel very ill

变得越来越拥挤

以…… . 速度

以光速的一半运行

漂入太空中

become more and more crowded

at the speed of …

travel at half the speed of light

float away into space

阻止某人做某事

keep/stop/prevent sb. from doing sth.

把…和…作比较

compare…with…

在太空旅行

在电脑的控制下

第一批居住在火星上的人

travel in space= space travel

under the control of computers

the first settlers to live on Mars

three-eighths八分之三 in many ways 在许多方面

in some ways

在某些方面

ExercisesI 用所给词的适当形式填空：

1. Earth is becoming more and more _____ (crowd).

2. Every year, large numbers of tourists ______ (come) to visit Beijing.

3. This pair of boots looks very ______ (fashion).

4. There will be no _________ (pollute)on Mars.

5. The news maker her ____ (feel) sad.

6. _______ (science)are working hard to make the dream become true.

comecome

pollutionpollution

fashionablefashionable

crowdedcrowded

ScientistsScientistsfeelfeel

Homework:Homework:

1 、 Make a short passage about "Life on Mars".2 、 Read the passages fluently.

Thank Thank youyou