[单项选择] Space Travel in the Future Space flight may be about to undergo a transformation far more radical than anything planned by national or international space agencies. In the next fifteen years or so , there could be a fleet of fifty space-planes carrying a million people into orbit about the Earth each year, at $ 10,000 per head. A prototype of spaceplane could be up and flying within five or six years. Perhaps surprisingly the main obstacles to realizing this dream are neither technical nor commercial. Space transportation is expensive and risky at present because all launchers so far have used large throw-away components that are based on ballistic missile technology. But the technology already exists for a prototype of a fully reusable, aeroplane-like launcher, and its development costs need only be equivalent to about two space shuttle flights (about $ 1,000 million). The cost per prototype space-plane flight would be about 1 percent of the cost in t
A. Y
B. N
C. NG

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A—Frequent flight passenger B—Flight number C—Boarding time D—Starting airport E—Ground service F—Delayed flight G—Ticketing service H—Ticket delivery I—Online ticket booking J—Luggage check-in K—Self check-in service L--Seat selection M—Flight punctuality N—Ticket refund O—Baggage claim P—Baggage compensation Q—First class

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[单项选择]Passage Two

Visitors from space may have landed on our planet dozens, even hundreds of times during the long, empty ages while Man was still a dream of the distant future. Indeed, they could have landed on 90 percent of the earth as recently as two or three hundred years ago, and we could never have heard of it. If one searches through old newspapers and local records, one can find many reports of strange incidents that could be interpreted as visits from outer space. A stimulating writer, Charles Fort, has made a collection of UFO sighting in his book! One is tempted to believe them more than any modern reports, for the simple reason that they happened long before anyone had ever thought of space travel. Yet at the same time, one can’t take them too seriously, for before scientific education was widespread, even sightings of meteors, comets, a
A. long before man had dreamed of it
B. long before there were human beings
C. in the last few hundred years
D. after the space age began

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