英语九年级下册Unit 4 Life on Mars教学设计

Integrated skills

Teaching aims:

To listen to the dialogue and do some exercises.

To complete a report from the TV program.

Talk advantages and disadvantages about Mars and express own ideas.

Teaching steps:

Step 1 Revision

Complete the sentences.

1. Earth is becoming more and more ________ (crowd).
2. Every year, large numbers of tourists ______ (come) to visit Beijing.

3. There will be no _________    (pollute)on Mars.
4. The news made her ____ (feel) sad.
5. _______ (science)are working hard to make the dream become true.

Keys: crowded, come, pollution, feel, Scientists

Step 2 Presentation

1. carry out    开展，执行

  e.g. No matter what difficulty you will meet with, carry out your plan. 

     不管你遇到什么困难，都要执行计划。

2. percentage    n. 百分率，百分数

  e.g. Percentage of students who would like to move away from the earth is 50%. 

     想要搬离地球的学生数的百分比是50%。

3. disadvantage    n. 缺点，不利条件

  e.g. The disadvantage of living on Mars。

      住在火星的缺点。

4. risk    n. 风险

  e.g. I’m not sure if it’s worth the risk. 我不确信是否它值得这个风险。

5. after all   毕竟

  e.g. After all, people have already been to the Moon. 毕竟，人们已经去过月球。

Step 3 Practice

1. Daniel wants to live on Mars in the future. However, Sandy is still not sure if she would like to. This week, there is a TV programme on this topic. Listen to the preview. Help Sandy make notes of it.

Survey carried out in:    Schools in Sunshine Town

Day:

Channel:

Name of programme:

Time:

Percentage of students who would like to move away from the Earth:

  Keys: Friday evening, Sunshine TV, Move in Mars, 7:30 to 9:00 p.m. 50%

2. Sandy is watching the TV programme. She wants to write down the important points. Listen to the discussion and help her complete her lists.

  Advantages 

1. It would be very interesting.

2. We could study at ____________.

3. It is not so crowded, with much more _____.

4. Travelling in space would be ____.

    Keys: online schools, space, fun

  Disadvantages

1. We do not know if it is really safe.

2. We might ______ from living there.

3. It is ___________ from the Earth.

4. There is not enough food, ______ or oxygen.

5. There might be __________ aliens.

Keys: get ill, so far away, water, dangerous

Step 4 Debate 

Have a discussion in groups of four, and hold a debate.

Advantages of living on Mars:

Disadvantages of living on Mars:

Step 5 Daniel and Sandy are talking about the TV programme. Complete their conversation with the information in Parts A 1 and A 2.

Sandy: Did you watch the programme called (1) ____________ on (2) ________ TV last (3) ______ evening?

Daniel: Yes, I did. but I missed the first part of it. When did the programme begin?

Sandy: It began at ________. It started with a discussion about a ______. It showed that (6) _____ of the students would like to (7) ______________ the Earth and live on (8) _____.

Daniel: Oh, yes. Some students said living on another planet such as Mars would be very (9) _________. They could study at (10) ____________, and traveling in (11) ______ would be fun.

Sandy: There might also be much more (12) ______ for everyone on Mars. It’s too crowded here.

Daniel: However, some other students were worried about living there. They said they didn’t know if it would be (13) _________. They thought they might (14) _____ because there’s not enough food, (15) _____ or oxygen on Mars.

Sandy: They were even afraid of aliens there. They thought aliens were (16) _________ and would harm people.

  Keys: Move in Mars, Sunshine, Friday, 7:30 p.m., survey, 50%, move away from, Mars, interesting, online schools, space, space, really safe, get ill, water, dangerous

Step 6 Discussion

How do we protect the Earth?

We should reduce pollution;

We should control population;

We should save energy;

We should…

Step 7 Speak up

1. Daniel and Sandy are talking about living on Mars. Work in pairs and discuss whether you would like to live on Mars. Use the conversation below as a model.

Daniel: Would you like to live on Mars, Sandy?

Sandy: I’m not sure if it’s worth the risk. It worries me.

Daniel: Why? It would be quite safe. After all, humans have already been to the Moon.

Sandy: Maybe you are right, but we might get ill from living there.

Daniel: I don’t think so, Sandy. It’s just a different kind of life. It would be great to live on another planet.

Sandy: What about all your friends here on the earth if you go to Mars?

Daniel: I want you all to come too.

Sandy: OK. If you all go together, it should be fun.

2. Listen to the conversation and answer the questions.

1. Would Sandy like to live on Mars? Why?

2. Would Daniel like to live on Mars? Why?

    Keys: He is not sure because she is not sure if it’s worth the risk it worries her.

          Yes, he would like to. Because it’ll be great to live on another planet.

Step 8 Work in pairs.

Where do you prefer to live, Mars or Earth?

Why?

Useful information:

online schools

much more space

travelling in space

some dangerous aliens

so far away from the Earth

no food, water or oxygen

Step 9 Exercises

1. Translate the following phrases.

1. 开展，执行

2. 在太空中旅游

3. 对 …… 有伤害

      4. 害怕见到外星人

5. 离地球如此遥远

6. 生活在火星上的缺点

7. 与地球上的情形不同

8. 毕竟

9. 住在另一个行星上非常棒

2. Complete the following sentences.

1. Some of the students are afraid of ______ (see) aliens there.

2. They are not sure whether it is much _____ (safe) to live there.    

3. The questions she asked last week is still under _________ (discuss). 

4. Reading in the sun is _______ (harm)  to our eyes.  

5. Don’t have the baby ____ (cry) all the time.

  Keys: seeing, safer, discussion, harmful, cry

3. Translate the following sentences.

1. 我们的班会以一个特别的讨论开始。

2. 不应当让家长为我们包办一切

3. 地球上的形势和火星上的相当不同。

  Keys: Our class meeting started with a special discussion.

       We shouldn’t have parents do everything for us.

       The situation on the Earth is quite different from that on Mars.

Step 10 Homework

Recite the key phrases and expressions in the lesson.