Question

16．16．When do most astronauts begin training？
A．At school．
B．Between 27 and 37．
C．Older than 37．
17．What do all astronauts need to do？
A．Study engineering，medicine or one of the sciences．
B．Be pilots in the air force at first．
C．Speak more than two languages．
18．Why must you be healthy if you want to be an astronaut？
A．Because you should walk in space．
B．Because it is very cold when you are training．
C．Because the astronaut training can be tiring．
19．What do you need to learn if you are on a spacecraft？
A．How to go around the Earth．
B．How to live and work alone．
C．How to get on well with people．
20．How many tips are there in the passage？
A．Two．
B．Three．
C．Four．

Answer 1

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解答 16．B      17．A      18．C      19．C      20．C

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