1. (让学生表演1a。)

T: Boys and girls, can you act out the dialog?

Ss: Yes.

(学生表演后，教师给予鼓励表扬。)

3. (让学生找出对话中的新语法modal verb + be + P.P.，进行操练。)

T: We have learned “is / are+P.P.” and “was /were+P.P.”. Please find out sentences with modal verb + be + P.P..

(教师强调带有情态动词的被动语态结构。)

T: Boys and girls, I’ll say a sentence in active voice. You change it into passive voice, OK?

Ss: OK.

T: We should clean our classroom every day.

Ss: Our classroom should be cleaned by us every day.

T: We must finish our homework on time.

Ss: Our homework must be finished on time.

T: I may put my book in your bag.

Ss: My book may be put in your bag.

T: Excellent. You did a good job.

Step 3　 Consolidation 第三步 　巩固(时间:9分钟)

2. (打开课本，将学生分成两部分朗读1a，让学生划出关键词，再读一遍后,完成1b。)

T: Open your books. Girls act as Maria. Boys act as Kangkang. Read the dialog. After reading, find out the key words and phrases in it. Read once again and finish 1b.

(板书)

(核对1b的答案。)

1. (两分钟后，播放1a录音,让学生带着问题听, 提高学生的听的能力。)

T: OK. Let’s listen to the dialog and answer the questions.

(板书)

T: Boys and girls, can you answer the questions?

(与学生核对答案。)

2. (以对一般过去时被动语态的复习，导入新课。出示神五，神六及嫦娥一号的图片。)

T:　　　 When was Shenzhou Ⅴ launched, S₃?

S₃:　　　 It was launched in 2003.

T:　　　 When was Shenzhou Ⅵ sent up, S₄?

S₄: It was sent up in 2005.

T:　　　 When was Chang’e Ⅰ launched, S₅?

S₅:　　　 It was launched in 2007.

T:　 Well done. Now we can say they are three large steps of China into the farther space. Have you heard the news on the radio about the space flight to Mars?

Ss: No, we haven’t. Who will take part in the space flight?

T: The astronauts from China, the United States and Russia. Maybe people will fly to Mars one day. Do you think it is magical?

Ss: Yes, that’s very exciting.

S₆: I want to be an astronaut like Yang Liwei.

S₇: Fly to Mars? Can we do the same thing on Mars as on the earth?

T: Yes, we’ll be able to do anything that can be done on the earth.

(板书并解释。)

T: Do you think there are aliens in space?

S₈: I don’t think aliens can be found in space.

S₉: I won’t believe there are aliens until I see them with my own eyes.

(板书)

T: OK, I think scientists will do experiments to research whether there are aliens in space. And scientific research should be done carefully.

(板书，解释并要求掌握research。)

T: Boys and girls, if you can be an astronaut one day, maybe you can do more research about space. But you should study hard now to make your dream come true.

Step 2　 Presentation 第二步 　呈现(时间:8分钟)

(让学生听前讨论，以加深理解。)

T: Boys and girls, I will ask you two questions before listening. Please discuss them in two minutes.

(1)Do you think people will live on Mars in the future?

(2)Do you believe there are aliens in space?

Step 1　 Review 第一步 　复习(时间:14分钟)

1. (复习巩固前面学过的有关现代科技及发明的重点句型，提高学生的口语表达能力。)

T: Boys and girls, we have learned something about spaceships, satellites, cloning, robots and GPS. The new technologies and inventions have improved our life greatly. Could you say something about them?

Ss: Yes.

T: OK. I made some cards with some key words on them. Each of you must try to say a sentence with the key words. Are you clear?

Ss: Yes.

T: OK, begin!

(出示带有关键词的卡片。)

(1)proved, made great progress, developing, space industry

S₁: They have proved that China has made great progress in developing its space industry.

(2)spaceships, controlled, computers

S₂: Spaceships are mainly controlled by computers.

(3)…

录音机/图片和卡片

4. Help students to learn expressing possibility and impossibility.

3. Talk about flying to Mars, the outer space and something about the aliens.

2. Help the students to learn the use of passive voice.