A. a tourist guide
B. a kind of fish found around the island
C. a tourist agency
D. someone who has already booked the trip
46.When John Cabot first discovered Cape Bonavista he was actually on a voyage to find ____.
A. North America
B. Asia
C. South America
D. the British Empire
47.According to the passage Newfoundland is now part of _________.
A. UK B. Canada C. Europe D. Bonavista
48.In the past the Newfoundlanders mainly lived by _________.
A. teaching languages
B. making camper vans
C. looking after retired fishermen D. fishing cod
C
As motorways become more and more blocked up with traffic, a new generation on flying cars will be needed to ferry people along skyways. That is the conclusion of engineers from the US space agency and aeronautical firms, who envision future commuters traveling by “skycar”.
These could look much like the concept skycar shown in the picture, designed by Boeing research and development. However, such vehicles could be some 25 years from appearing on the market. Efforts to build flying vehicles in the past have not been very successful. Such vehicles would not only be expensive and require the skills of a trained pilot to fly, but there are significant engineering challenges involved in developing them. “When you try to combine them you get the worst of both worlds: a very heavy, slow, expensive vehicle that’s hard to use,” said Mark Moore, head of the personal air vehicle(PAV) division of the vehicle systems program at Nasa’s Langley Research Center in Hampton, US. But Boeing is also considering how to police the airways-and prevent total pandemonium(吵杂狂乱的喧闹)-if thousands of flying cars enter the skies.
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