问题补充：
It is interesting how NASA(美国航天航空局) chose their astronauts for landing them on the moon. They chose men 36the ages of twenty and thirty-five. There were about fifty of them. Some were 37air pilots, and 38were scientists with two or three degrees. NASA telephoned each man they were going to choose, told him the plans and the 39they might get into. They then asked him if he was willing to be trained as an astronaut, “How could any man 40such an exciting job?” One of them said, “Dangerous? Of course. It’s dangerous 41most exciting.”
The health and physical condition of the people was, 42, very necessary. Only those in very good health and physical condition were 43.
While being trained to be astronauts, they went through many 44. They studied the star and the moon, and they also studied geology, the science of rocks. This was necessary 45astronauts would have to look for rocks on the moon. They would try to find rocks which might help to tell the 46of the moon. They were all 47to fly in helicopters. There helicopters landed straight down to give them some 48of the way the spaceship would actually land on the 49. They were also taught the known facts about the 50in space. They learnt about all the scientists and engineers who 51spaceships. They visited the 52where spaceships were repaired. They learnt how every 53of a spaceship and its instruments work. They also learnt every detail of ground-control 54.
In a word, to be chosen as astronaut, one must be in good 55, well-informed in science and good at piloting.
【小题1】A．atB．betweenC．ofD．on【小题2】A．experiencedB．oldC．handsomeD．retired【小题3】A．noneB．fewC．othersD．both【小题4】A．dangersB．sadnessC．realityD．protection【小题5】A．shareB．treatC．offerD．refuse【小题6】A．butB．ifC．thoughD．when【小题7】A．in allB．of courseC．so farD．at last【小题8】A．noticedB．chosenC．praisedD．examined【小题9】A．jobsB．placesC．coursesD．ways【小题10】A．soB．because C．as ifD．even though【小题11】A．sizeB．sceneC．ageD．name【小题12】A．shownB．trainedC．toldD．allowed【小题13】A．adviceB．experienceC．surpriseD．thought【小题14】A．waterB．rockC．moonD．earth【小题15】A．secretsB．traditionsC．theoriesD．conditions【小题16】A．drewB．developedC．designedD．discovered【小题17】A．officesB．shopsC．collegesD．factories【小题18】A．partB．movementC．stepD．body【小题19】A．methodB．difficultyC．systemD．trick【小题20】A．shapeB．positionC．orderD．healthB
答案：
(答案→)B
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