完形填空ItisinterestinghowNASA(美国航天航空局)

完形填空It is interesting how NASA(美国航天航空局) chose their astronauts for landing them on the moon. They chose men1the ages of twenty and thirty-five. There were about fifty of them. Some were2air pilots, and3were scientists with two or three degrees. NASA telephoned each man they were going to choose, told him the plans and the4they might get into. They then asked him if he was willing to be trained as an astronaut, “How could any man5such an exciting job?” One of them said, “Dangerous? Of course. It’s dangerous6most exciting.”The health and physical condition of the people was,7, very necessary. Only those in very good health and physical condition were8.While being trained to be astronauts, they went through many9. They studied the star and the moon, and they also studied geology, the science of rocks. This was necessary10astronauts would have to look for rocks on the moon. They would try to find rocks which might help to tell the11of the moon. They were all12to fly in helicopters. There helicopters landed straight down to give them some13of the way the spaceship would actually land on the14. They were also taught the known facts about the15in space. They learnt about all the scientists and engineers who16spaceships. They visited the17where spaceships were repaired. They learnt how every18of a spaceship and its instruments work. They also learnt every detail of ground-control19.In a word, to be chosen as astronaut, one must be in good20, well-informed in science and good at piloting.1.A.atB.betweenC.ofD.on2.A.experiencedB.oldC.handsomeD.retired3.A.noneB.fewC.othersD.both4.A.dangersB.sadnessC.realityD.protection5.A.shareB.treatC.offerD.refuse6.A.butB.ifC.thoughD.when7.A.in allB.of courseC.so farD.at last8.A.noticedB.chosenC.praisedD.examined9.A.jobsB.placesC.coursesD.ways10.A.soB.becauseC.as ifD.even though11.A.sizeB.sceneC.ageD.name12.A.shownB.trainedC.toldD.allowed13.A.adviceB.experienceC.surpriseD.thought14.A.waterB.rockC.moonD.earth15.A.secretsB.traditionsC.theoriesD.conditions16.A.drewB.developedC.designedD.discovered17.A.officesB.shopsC.collegesD.factories18.A.partB.movementC.stepD.body19.A.methodB.difficultyC.systemD.trick20.A.shapeB.positionC.orderD.health