Exercise 1
Directions: You will hear an interview of Chinese astronauts. Choose the best answer to each question.
 vocabulary
dock （(使宇宙飞船在外层空间) ）对接 simulation 模拟 cross training 交叉训练 Mars 火星 Milky Way 银河
1.Which of the following statement is false?

A、It’s difficult to dock two spacecrafts together
B、Astronauts should do simulations many times before docking
C、Astronauts should practice two years before docking
D、Astronauts should practice two hours before docking