* No, we can't.

* You only know you are close to a black hole by seeing things disappear into what appears to be an empty space. The black hole can't be seen.

* So far we haven't found out they can cause damage to the earth or human beings.

* All objects must go into the "black hole" when they are caught by its gravity.

* The most unexpected thing is that the "black holes" threw out material as well as swallowing objects.

* The most frightening experience : when the gravity of the "black hole" was pulling us slowly into its "mouth", and then the spaceship moved around the hole and began to go faster and faster into it; I was terrified because I thought we would be swallowed by the "hole".

1. Ask Ss to read the three questions of Speaking task on P67 and discuss all the six questions.

2. Ask Ss to work in pairs and make an interview. One student asks the questions and the other answers. Then change roles. They can begin the dialogue like this.

S1: Good morning, Mr Li.

S2: Good morning.

S1: Since you like this job, would you mind me answering some questions?

S2: Of course not. Just go ahead.

S1: What was the most unexpected thing you found out about "Black holes"?

3. Choose some pairs to present their interviews before the class.

Step 3. Listening task (Workbook)

1. Pre-reading

Ask Ss to discuss the following questions.

(1) If you are a reporter, how will you interview a famous astronomer?

(2) What kind of questions will you ask him?

(3) Do you want to experience the astronaut's life in space?

2. Listening

(1) Ask Ss to read Ex2 of Listening task on P65 and then play the tape and let them finish Ex1.

(2) Ask Ss to read Ex2 of Listening task on P65 and make sure they know about the different parts of the spacesuit. Play the tape again and ask Ss to finish Ex2.

(3) Play the tape fro the third time and ask Ss to check their answers to Ex1 and Ex2 in pairs.

Step 4. Writing task (Workbook)

1. Ask Ss to discuss the following questions.

(1) If you can travel in space, which star or planet do you want to explore?

(2) What will see during your space travel?

(3) If possible, do you want to approach the "black hole"?

(4) How will you feel in space?

2. Ask Ss to write an article to tell about their ideas and hopes for space travel. They can make