The failed Skylab will come screaming home to the earth in disappointment sometime next month, but we don’t know where it will fall. That precise（准确的） information is beyond even the calculations of scientist and their computers.
The best they can tell us is that the space station, weighting 77 tons and as high as a 12-story building, will break into hundreds of pieces that will be scattered（散落） across a track 100 miles wide and 4,000miles long.
We are again exposed（暴露） to one of those unexpected adventures, or misadventures, of science that attract our attention from the boring routines of daily existence and encourages us to think a lot about man’s future.
What worries Richard Smith, the Skylab’s director, is the “big pieces” that will come through the atmosphere. Two lumps, weighing 2 tons each, and ten, weighing at least 1,000 pounds each, will come in at a speed of hundred of miles an hour, and if they crash on land they will dig holes up to 100 feet deep.
What worries us, with our lack of scientific knowledge and our quick imagination, is both the big and little pieces, although project officials say there is a very small chance that anyone will be injured by them.
That’s good to know, but it doesn’t remove the doubt of the millions who still remember the nuclear accident at Three Mile Island. That accident took place in 1979 in spite of what scientists had assured（向…保证） us as to the safety of the nuclear reactor（反应堆）.
59. Where the Skylab will fall____.
A. is kept secret
B. will be announced soon
C. is foretold by scientists
D. can’t be foretold
60. The broken Skylab will come into view ____.
A. in two lumps---- one weighing 2 tons and the other weighing 10 tons
B. falling with the force of a 12-story building
C. as 12 bigger pieces and hundreds of smaller pieces
D. as an attractive scene to millions of people
61. The writer mentions Three Mile Island ____.
A. because he fears that a piece of the Skylab may strike a nuclear power plant
B. to express his doubt about the officials’ words
C. because he is afraid of nuclear power
D. because the nuclear reactor there and the Skylab were built by the same company
62. The writer expresses his ____.
A. interest in the failure of the Skylab
B. willingness to give his advice
C. worry about the misadventure of science
D. eagerness to see more new scientific discoveries