四、阅读理解

( ) 1. What kind of person can be an astronaut according to the passage?
A. He has to be older than 23 years old.
B. He has some large scars on faces.
C. He weighs between 55 kg and 70 kg.
D. He needs to have a height of 180 cm.
( ) 2. How does an astronaut train to keep a good balance?
A. He moves around a big chair.
B. He stays in a water tank to keep afloat.
C. He stands g-forces of up to 8 G.
D. He sits on a big "swing" for 15 minutes.
( ) 3. What may happen to astronauts while training?
A. They can stay fit and healthy.
B. They may be in a bad condition.
C. They become heavier than usual.
D. They can't see anything for a while.
Exercise 3 of Unit 4 of 9B Integrated skills & Study skills

1.C 2.D 3.B