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1. 阅读理解
Andrew Ritchie, inventor of the Brompton
folding bicycle, once said that perfect portable bike would be "like a
magic carpet... You could fold it up and put it into your pocket or
handbag". Then he paused: "But you'll always be limited by the size
of the wheels. And so far no one has invented a folding wheel."
It was a rare --- indeed unique
--- occasion when I was able to put Ritchie right. A 19th-century inventor,
William Henry James Grout, did in fact design a folding wheel. His bike, predictably
named the Grout Portable, had a frame that was divided into two and a larger
wheel that could be separated into four pieces. All the bits fitted into
Grout's Wonderful Bag, a leather case.
Grout's aim: to solve the
problems of carrying a bike on a train. Now doesn't that sound familiar? Grout
intended to find a way of making a bike small enough for train travel: his bike
was a huge beast. And importantly, the design of early bicycles gave him an
advantage: in Grout's day, tyres were solid, which made the business of
dividing a wheel into four separate parts relatively simple. You couldn't do
the same with a wheel fitted with a one-piece inflated(充气的)
tyre.
So, in a 21st-century
environment, is the idea of the folding wheel dead? It is not. A British design
engineer, Duncan Fitzsimons , has developed a wheel that can be folded into
something like a slender ellipse(椭圆). From beginning to end, the
tyre remains inflated.
Will the young Fitzsimons's
folding wheel make it into production? I have no idea. But his inventiveness
shows two things. First, people have been saying for more than a century that
bike design has reached its limit, except for gradual advances. It's as silly a
concept now as it was 100 years ago: there's plenty still to go for. Second, it
is in the field of folding bikes that we are seeing the most interesting
inventions. You can buy a folding bike for less than £1,000 that can be knocked
down so small that can be carried on a plane ——minus wheels, of course ——as hand baggage.
Folding wheels would make all
manner of things possible. Have we yet got the magic carpet of Andrew Ritchie's
imagination? No. But it's progress.
（1）We can infer form Paragraph 1 that the Brompton folding bike____.
A . was portable
B . had a folding wheel.
C . could be put in a pocket.
D . looked like a magic carpet
（2）We can learn from the text that the wheels of the Grout Portable_______.
A . were difficult to separate
B . could be divided into 6 pieces
C . were fitted with solid tyres
D . were hard to carry on a train
（3）We can learn from the text that Fitzsimons's invention_______.
A . kept the tyres as whole piece
B . was made into production soon
C . left little room for improvement
D . changed our views on bag design
