2. 外语
  3. (1)Just when Transport for London (TfL)thought the bike hire scheme provided an answer to London’s carbon emissions problem, the

(1)Just when Transport for London (TfL)thought the bike hire scheme provided an answer to London’s carbon emissions problem, the

admin2019-04-29  66
问题    (1)Just when Transport for London (TfL)thought the bike hire scheme provided an answer to London’s carbon emissions problem, they found a snag—bikes cannot be provided without producing emissions.
   (2)TfL uses Serco contractors to move hire bicycles around London, so there are enough in each dock to meet demand, while ensuring there is space for users to drop theirs off. Included in the fleet of vehicles are Alke electricity-powered cars, used to tow trailers of bikes.
   (3)The vehicles are narrower than the trailers of bikes, which critics say has led to accidents involving cyclists. A Freedom of Information request by the bike blog reveals that 24 road accidents have involved Serco transport vehicles since the scheme’s launch last summer, including four which also involved a cyclist.
   (4)In November, David Ellis, a 37-year-old cyclist was knocked off his bike by one of the vehicles. He said the trailers were a danger to cyclists because their width is greater than that of the tow truck. None of the recorded Serco/cyclist collisions were fatal. Compare this with 13 cyclist deaths caused by HGVs in London last year.
   (5)The vehicles used by Serco produce on average 1884g/km C02 a day in transporting the 862 bikes they’re capable of moving daily, meaning around 431kg C02 has been emitted so far.
   (6)But what level of emissions has been prevented by the scheme? Not much so far, it seems. One of TfL’s aims was to reduce overcrowding on the bus and tube networks, not to remove buses from the road, and there is no indication that the number of buses being used has dropped as a result of the scheme.
   (7)In a survey of bike scheme users it was found that 35% are tube converts, 29% used to walk and 23% have switched from bus rides. That leaves only a possible 13% who previously drove around the capital. TfL’s target of 50,000 people a day using hire bikes should widen the gap between emissions caused by Serco vehicles and emissions abated (减少)by the onset of the scheme.
   (8)There are 5,000 bikes available, which at times have struggled to cope with the 94,500 bike hire members. For the 50,000 mark to be reached by March Serco will need a more organised pattern of distribution, to limit the number of their vehicles on the road.
   (9)The scheme’s users have a role to play. If London’s cyclists want to keep their journey down to within 30 minutes so as to pay just ￡ 1 (which they do, TfL research has found)there will always be too many people trying to jam their two-wheeler into the busiest docks. But if attitudes changed and people became more flexible about paying slightly more, or walking a bit further to complete their journey, there would be less congestion around the hubs and, by default, fewer Serco vans would be needed to shift them from one to another. And that would mean fewer accidents and emissions too.
What can the hire bike scheme users do to help reduce emission?
选项 A、Limit the use of the bikes in less than 30 minutes.
B、Go to busy areas in the city by bike.
C、Donate extra money besides paying for the hire.
D、Return the bikes to a less busy dock.
答案D
解析 将最后一段第2句和第3句对比可以发现，租赁计划的会员可通过将自行车还到较远的停靠站，这样虽然他们会因为路程较远而需花更多时间或付更多的租金，但这种做法可以帮助减少碳排放，可见，本题应选D。
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