＿＿＿＿＿he come, the problem would be settled.
A. Would B. Should C. Shall D. If
科目：高中英語 來源： 題型：閱讀理解
The Green Microgym in Portland，Oregon has all the usual
stuff you'd expect-sweaty people，loud music，smooth exercise
equipment-but it has some extras as well. Everywhere you
look，there are power wires. And these aren't the typical kind
that let you surf the Web while you ride a spin cycle-although
you can do that too．The gym uses special exercise equipment
that captures（捕獲）the energy you create while riding,
converts（轉換）it into electricity and channels it into the power
outlets（插座）．
The idea of using exercise equipment to produce electricity is
not new. A gym in Hong Kong has been doing this since 2007. But clean (and healthy）energy is
just now starting to catch on in U. S. gyms·"We have seen a significant increase in interest in the
past six months，which is a good sign that fitness centers are ready to spend money on green
technologies，” says Mike Curnyn，co-founder of the Green Revolution，a Connecticut-based firm
that wires bikes into a central battery that can store energy.
The Green Microgym，first opened in 2008，has more than 200 members and is doing so well
that owner Adam Boesel opened another one five miles from the original．Although membership
costs about the same as ordinary gyms，customers can earn gift certificates from local businesses
for watts produced while exercising．An average workout creates 37. 5 watt hours，which is
enough to power a phone for a week．
Boesel uses spin bikes made by Resource Fitness，a Seattle company he co-owns，that
captures energy produced from the flywheel. Wires send the converted AC current（交流電流）
into any standard wall outlet-for this reason，the product line's name is Plug Out-and the
energy created is used before the building draws power from the grid（電網）．Unlike the Green
Revolution equipment，Plug Out machines cannot store extra energy. A third company，the
Florida-based ReRev，is adding converters to a specific brand of spin bikes. But since the
converters add＄1，000 to the price of the equipment，the ReRev and Green Revolution machines
are at a disadvantage．
Resource Fitness，by contrast，sells its equipment for the same＄1，200 price as non-
electricity-producing machines，removing the question of how long it will be until the energy
savings pay for the cost of the unit．The company can afford to do this because its designs don’t
call for the extra wiring needed for battery packs and large converters．It is also trying to price
competitively with standard equipment so more gyms-and gym Boers-will make the switch．
63．Members of the Green Microgym earn gift certificates for＿．
A ．using the man-powered exercise equipment
B. saving electricity for local businesses
C. producing green electricity to power their phones
D. paying higher membership fees
64．The spin bikes made by Resource Fitness are different from those by Green Revolution in that
A. they are easier to ride B. they are more expensive
C. they don't have wires connected D. they can not store extra electricity
65．What might prevent the green exercise equipment from getting more popular？
A ．People's unwillingness to go green．
B. The high cost of making it．
C. Safety problems concerning electricity.
D. Lack of certificates．
66. The underlined words“make the switch”in the last paragraph most probably mean
A. change to a different gym B. use green exercise equipment
C. switch on the spin bikes D. add a battery to the machine
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