牛津译林版九年级下册Unit 4 Life on Mars教学设计及反思

Reading I

Teaching aims:

1. Understand the planet living in another plant.

2. To recognize and read words of life on Mars.

3. Identify and list the differences lives between earth and Mars.

Teaching steps

Step 1 Review

Translate some sentences.

1. 我从来没想过去太空旅行。

2. 你认为火星上的生活怎么样？

3. 我原以为你喜欢火星。

Keys: I’ve never thought about traveling into space.

How do you like life on Mars?

I thought you liked Mars.

Step 2 Presentation

planet              n. 行星

crowded           adj. 快的，迅速的

polluted           adj. 被污染的

rapid              adj. 快的，迅速的

increase            n. 增加  

(all) over again      再；重新

passenger           n. 乘客

at a/the speed of      以…的速度

uncomfortable       adj.  使人不舒服的

oxygen             n.   氧气

in the form of        以……的形式

tasty                adj.味道好的  

specially             adv.专门地，特地

float                vi.漂浮；飘浮

compare             vt. &vi.比较

compare to /with       与……相比

interplanetary         adj.  行星间的

network              n.   网络

challenging           adj. 挑战性的

rapidly               adv. 快地，迅速地

Step 3 Match the words and the meaning

crowded        a. for one purpose

rapid           b. a second time from the beginning

population      c. Decide in what way things are similar or difficult

all over again    d. having a nice taste

passenger       e. full of people

tasty            f. happening in a short period of the time

specially        g. a person who rides in a car, bus, train, etc. but does not drive it

compare        h. The total number of people in an area, a country, etc.

Keys: e f h b g d a c

Step 4 Discuss

The color of Mars: _____________ Red

the surface of Mars  The surface of Mars is a little like the surface of Earth.

The size of Mars  one-half the diameter (直径) of Earth

the temperature of the Mars

The lowest temperature will be -133℃ (degrees centigrade) and the highest will be 27 ℃

the transport to the Mars

spacecraft are too slow to carry large numbers of people to Mars

Step 5 Pre-reading

Daniel is looking for more information on the Internet. Help him find out the links to

the key words.

crowded planet     space houses

spacecraft         robot on Mars

speed boots        online teacher  

a Need someone to teach you any time, any place?

b Living in a space house is fun…

c All about the newest spacecraft that travel in space…

d Out shoes can make you walk faster!

e Robots could be of great help to people on Mars..

f  The population on the Earth is still increasing rapidly…

Keys:

crowded planet   The population on the Earth is still increasing rapidly…

spacecraft       All about the newest spacecraft that travel in space…

speed boots      Our shoes can make you walk faster!

space houses     Living in a round house is fun …

robot on Mars    Robots could be of great help to people on Mars…

online teacher    Need someone to teach you any time, at any place?

Step 6 Fast reading

Read the article quickly and find out the keyword of each paragraph.

Keys :

Para 1 Crowded, polluted  (population , pollution)

Para 2  Transport

Para 3 Food, water and air

Para 4 Gravity

Para 5 Home

Para 6 School

Para 7 Life

Step 7 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. Will space travel make people feel ill?

4. Will gravity on Mars be a big problem?

5. How will students study?

Keys: Earth is becoming more and more crowded and polluted.

Several months.

Yes.

Maybe, but we can wear special boots to prevent floating.

They will study at online schools with “e-teachers”.

Step 8 Careful reading

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

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?

3. What are the problems of living on Mars?

4. What will food on Mars be like?

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

6. What may happen then?

7. What kind of shoes should people wear?

8. What kind of house may people live in ?

9. Who will do most of our work?

10. What kind of school will students study in? And what do they call their teacher?

Keys: Spacecraft. Months.

Space shuttles. Only 20 minutes.

Scientists are not sure whether would be enough water or oxygen on Mars and produce the food, water and oxygen.

Maybe the food will be in the form of pills.

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

People may float off into space.

People should wear special boots.

They might live in houses with huge comfortable rooms.

Robots will do most of our work.

There would probably be no schools on Mars. They will study at online schools with “e-teachers”.

Step 9 Discuss

Differences between life on Earth and life on Mars.

Life on the Earth today                   Life on Mars in 2100

Keys: At the speed of light.

Nobody knows whether there would be enough water or oxygen.

Food will probably be in the form of pills.

We must wear special boots.

People will have more space.

They will have more time to relax.

At online schools.

Step 10 Homework

1. Read the passage aloud.

2. Find out the difficult sentences and discuss them with your classmates.