江西成考高起点英语完型填空习题二

　　It is interesting how NASA（美国航空航天管理局）chose their astronauts for landing them on the moon. They chose men 1 the age of twenty and thirty-five. There were about fifty of them ， Many were 2 air pilots. 3 were scientists with two or three degrees. NASA telephoned each man they were going to choose ；told him the plans and the 4 they might get in. They then asked him if he was willing to be trained as an astronaut. “How could any man 5 such an exciting job？”One of them said， “Dangerous？ Of course. It‘s dangerous 6 most exciting”

　　The health and physical condition of 7 was， of course， very necessary. 8 those in very good health and physical condition were chosen.

　　While being trained to be astronauts. they went through many 9 . They studied the star and the moon ， and they also studied geology， the science of rocks. This was necessary 10 astronauts would have to look for rocks on the moon. They would try to find rocks which might help to tell the 11 of the moon. They were all 12 to fl