二、听问句,选出正确的答语。
() 1. A. It's 467°C.
B. It's 2,000 kilometres.
C. It's over 300 years old.
() 2. A. It's a big moon.
B. It's a big storm.
C. It's a big spaceship.
() 3. A. Jupiter.
B. Saturn.
C. Neptune.
() 4. A. Only one.
B. Over two hundred.
C. Thousands of them.
() 5. A. It's ice from the Moon.
B. It's man-made rubbish(垃圾).
C. It's food for astronauts.

1. A 2. B 3. C 4. B 5. B

一、听对话,选出正确的答案。
() 1. What subject did the students have today?
A. Maths.
B. Science.
C. PE.
() 2. What is TRUE about Mars?
A. It is called the "Blue Planet".
B. China sent a rover to explore it.
C. Scientists found aliens there.
() 3. How do taikonauts brush their teeth in space?
A. With a normal toothpaste and water.
B. With a special toothpaste.
C. They don't brush teeth in space.
() 4. Why do taikonauts exercise every day?
A. To watch the sunrise 16 times.
B. To grow vegetables on the station.
C. To keep healthy in space.

1. B 2. B 3. B 4. C