Stadiums have been built, tickets have been sold and London is nearly ready for the 2012 Olympics. But the sporting extravaganza

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问题     Stadiums have been built, tickets have been sold and London is nearly ready for the 2012 Olympics. But the sporting extravaganza is also an immense logistical challenge that depends on getting the holders of 8.8m tickets into their seats and 280,000 athletes, dignitaries and staff into position over the course of 17 days. The city’s residents and workers are used to its crowded, sticky public-transport system. But on the busiest days London’s network will have to support an extra 3m journeys, Olympic organisers predict.
    Transport planning has been central to Olympic preparations ever since the Atlanta games of 1996, when athletes nearly missed events and competitions were delayed after coaches got lost. Olympic bids must now include detailed travel plans. London’s scheme is far-reaching: the site for the Olympic park in east London was chosen partly for the ten Tube and rail lines that feed the area.
    But calculations of the Olympics’ supposed economic benefits to Britain often neglect the hidden costs of constraining ordinary business. Although local demand is lower in August, Transport for London(TfL), which oversees most of the capital’s transit systems, says making room for Olympic traffic will require at least a 30% drop in "background" travel—the usual movement of London’s 8m-strong population. People are being asked to stockpile goods, don walking boots or cycle helmets, or stay at home.
    London’s predicament is acute. Unlike in previous Olympic cities such as Sydney, Athens or Beijing, events will take place in the heart of the city, as well as within a few miles of the centre. So for nearly three weeks Britain’s only high-speed train line will be commandeered to shuttle an estimated 10,000 spectators an hour between King’s Cross in central London, the Olympic park at Stratford and a giant car park in Kent. The 150,000 commuters on that line will face fewer trains and slower journeys to more distant destinations. Rail services in south London will also be cut back to allow for longer stops at the Olympic sites.
    Roads will be ceded to visiting dignitaries. Because Olympic stadiums have no parking spaces, spectators must walk, cycle or use public transport to reach them. But athletes, officials, sponsors and the media will be ferried by road; the organisers have guaranteed that the nine-mile trip from central London to the Olympic park will take less than 25 minutes.
    To make this possible, 109 miles of London’s main arteries will operate as a special Olympic network, with exclusive lanes in some places. "It would be fairly disastrous if Usain Bolt was stranded on the A40," says a TfL spokesman. But less than 15% of those using such routes will be athletes, and closing pedestrian crossings, cycle lanes and right turns to speed up traffic will do little to spur the hoped-for walking and cycling brigade of ordinary Londoners.
According to Paragraph 4, the common commuters will suffer from slower journeys because______.

选项 A、they have to detour to more distant places before reaching destinations
B、the Olympic Games will take place far away from the city center
C、trains in the southern part of London will make longer stops at the Olympic sites
D、government takes over the high-speed rail for use of transporting the audiences

答案D

解析 属信息推断题。选项A犯了答非所问的错误,选项A其实是与题干内容相同原因的另一个结果,二者不构成因果关系,应属并列关系,故选项A错误。选项B属于偷梁换柱,本句其实是对第四段第二句含义的误解,文中说伦敦奥运会与其他奥运会不同,因为它是在市中心和附近的地方举行的,故选项B错误。选项C犯了答非所问的错误,选项C其实是第四段最后一句的意思,与题目并无因果关系,故错误。正因为这条高铁线被征用来运送观看比赛的观众,所以普通通勤者不得不忍受车次变少、旅行时间增长的问题,故选项D正确。
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