1. (引导学生学习3a。)

T: In dialog 1a, Kangkang wants to be an astronaut when he grows up. He wants to do some research in space. So he dreams about his uncle’s trip to Mars. Let’s listen to the tape, then answer the following questions:

(板书)

(学生听完后，逐个提问，并核对答案。)

(1) This e-mail is from Kangkang’s uncle, Stephen.

(2) It took them more than two years to get there.

(3) Yes. Generally, the journey went well.

(板书并释义。)

2. (学生完成1b。)

T: Complete the sentences according to 1a. Pay attention to the grammar “modal verb+be+P.P.”.

(学生做完后核对答案。)

(1) Something new about Mars can be discovered by the astronauts.

(2) Some basic skills should be mastered by Kangkang.

(3) People will discover more and more things in the future.

(4) Ballet can be performed on the stage by Maria in the future.

Step 4　 Practice 第四步 　练习(时间:8分钟)

1. (学生一起朗读对话1a，然后脱离课本，在关键词的帮助下表演。调动课堂气氛，熟悉对话。)

T: Now read the dialog between Kangkang and Maria. Then act it out with the help of the key words and phrases.

(学生可以练习两遍。)

T: Who can perform the dialog in front of the class?

(两组学生上台表演，作个比较，然后点评鼓励。)

T: Well done! Group 1. Group 2 needs to work harder.

2. (学生分组朗读, 女孩读Maria, 男孩读Kangkang。读后学生们自己设计问题，并互问互答。)

T: Read the dialog in groups. Girls act as Maria. Boys act as Kangkang. After reading, talk about it by asking and answering questions in groups.

(读后，给学生三分钟时间准备问题。)

S₁₁: Has Maria heard the news about the space flight to Mars?

S₁₂: No, she hasn’t.

S₁₃: Who will take part in the space flight?

S₁₄: The astronauts from China, the United States and Russia.

S₁₅: Why will the astronauts travel to space?

S₁₆: They want to discover something new about Mars.

S₁₇: What is Kangkang going to be when he grows up?

S₁₈: He wants to be an astronaut.

S₁₉: Which subject does Maria prefer?

S₂₀: She prefers science to dance.

S₂₁: So what is Maria’s dream?

S₂₂: She wants to be a scientist in the future.

(学生回答问题时，教师记录下对话中的关键词并板书。)

Step 3　 Consolidation 第三步 　巩固(时间:12分钟)

1. (播放1a录音，让学生听两遍，然后回答问题。)

T: Listen carefully and find out the answers:

(1) What is Kangkang going to be when he grows up?

(2) What about Maria?

(听后，让全班同学统一回答。)

(答案)：

(1) Kangkang is going to be an astronaut when he grows up.

(2) Maria wants to be a scientist.

2. (提问关于太空和人类对太空研究的一些问题。加深对含有情态动词的被动语态结构的变化及用法的认识，导入一部分生词。)

T: What movie did Kangkang and Maria watch yesterday?

S₁: They watched a movie about the life in space.

T: Does Kangkang believe there are aliens?

S₂: No, he doesn’t believe it.

T: And you? Do you believe there are aliens?

S₃: No, I don’t believe it, because they haven’t been seen in our daily life.

(很有可能出现不同意见，那样更有利于进一步的复习提问。)

S₄: Mr./Miss…, I believe there are aliens because there are large numbers of stars in space. There must be a star like our planet.

T: I agree with you. We all wonder if there are aliens in space, but what can be done to find out whether there are aliens in space or not?

S₅: Satellites and spaceships should be sent up.

S₆: Other planets may be visited.

S₇: More scientific research should be done.

T: Good idea. If people do more scientific research, I believe more and more unknown things will be discovered in the future. Now, man has a plan to fly to the Mars. The astronauts from China, the United States and Russia will finish the task together. I really admire the astronauts. They can travel to space and discover something new about planets. The risks must be worthy. To tell you a truth, when I was a child, I wanted to be an astronaut. What are you going to be when you grow up?

S₈: I’d like to be a scientist.

T: So you need to learn a lot of knowledge and master some basic skills. What are you going to be in the future, S₉?

S₉: I want to be a basketball player in NBA.

T: So you need a good coach and more training. S₁₀, would you like to be a director?

S₁₀: Yes.

T: Very good. I’m glad to hear that you all want to have a good future. I hope your dream will come true. Now, let’s see what Maria and Kangkang want to be when they grow up.

(板书，讲解并要求掌握basic, coach, director, risk。)

Step 2　 Presentation 第二步 　呈现(时间:10分钟)

Step 1　 Review 第一步 　复习(时间:10分钟)

1. (以男、女两组竞赛的方式复习含有情态动词的被动语态。由教师说出一个动词，同学们用这个动词去造一个含有情态动词的被动语态的句子。看哪组说得又快又准确。)

T: OK. Let’s have a competition between boys and girls. I say a verb, and you make a sentence with this verb. You must use “modal verb+be+past participle”. Do you understand?

Ss: Yes.

T: For example. I say“water”. You should say it like this,“The flowers must be watered every day. ”OK, Let’s begin. Protect.

Girls: Our environment should be protected well.

T: Clean.

Boys: The blackboard must be cleaned after class.

T: Look after well.

Girls: The young trees should be looked after well.

T: Speak.

Girls: English should be spoken in our English class.

T: Plant.

Boys: More and more trees should be planted.

T: Invent.

Girls: Many useful things will be invented in the future.

T: Excellent. You did very well. Girls did better than boys. Congratulations! (鼓掌。)

录音机/幻灯片

3. Talk about flying to Mars and the outer space.

2. Consolidate the use of modal verb+be+P.P.:

(1) I believe more and more things will be discovered in the future.

(2) The girl will be well cared for.

(3) These trees should be watered at once.