题目
For years the beautiful Renaissance buildings in Palitito have been damaged by exhaust from the many tour buses that come to the city. There has been little parking space, so most buses have idled at the curb during each stop on their tour, and idling produces as much exhaust as driving. The city has now provided parking that accommodates a third of the tour buses, so damage to Palitito's buildings from the buses' exhaust will diminish significantly.
Which of the following, if true, most strongly supports the argument?
选项
A.The exhaust from Palitito's few automobiles is not a significant threat to Palitito's buildings.
B.Palitito's Renaissance buildings are not threatened by pollution other than engine exhaust.
C.Tour buses typically spend less than one-quarter of the time they are in Palitito transporting passengers from one site to another.
D.More tourists come to Palitito by tour bus than by any other single means of transportation.
E.Some of the tour buses that are unable to find parking drive around Palitito while their passengers are visiting a site.
解析
多年来,帕利蒂托(Palitito)那些漂亮的文艺复兴时期建筑一直受到众多来此城市的旅游巴士尾气的损害。一直以来停车位都很少,所以大多数巴士在每次游览停留期间都在路边空转,而空转产生的尾气与行驶时一样多。该市现在提供了可容纳三分之一旅游巴士的停车位,所以旅游巴士尾气对帕利蒂托建筑的损害将显著减少。 - **论点**:因为提供了能容纳三分之一旅游巴士的停车位,所以旅游巴士尾气对帕利蒂托建筑的损害将显著减少。
- **论据**:之前停车位少,巴士多在路边空转(空转尾气量和行驶时相同),现在有了可容纳三分之一巴士的停车位。
- **正确答案方向**要支持该论点,正确答案应从某种角度表明旅游巴士空转时间确实会因新停车位的设置而大幅减少,或者提供其他能说明新停车位能有效降低巴士尾气排放对建筑损害的相关信息。
- **A选项**:帕利蒂托少数汽车的尾气对帕利蒂托的建筑不构成重大威胁。
- **分析**:该选项讨论的是少数汽车尾气的影响,而题干讨论的是旅游巴士尾气的影响,话题不一致,无法加强论点,排除。
- **B选项**:除了发动机尾气外,帕利蒂托的文艺复兴时期建筑没有受到其他污染的威胁。
- **分析**:该选项只是说明建筑不受除尾气外其他污染威胁,但并没有涉及新停车位设置对旅游巴士尾气损害的影响,与论点无关,排除。
- **C选项**:旅游巴士在帕利蒂托时,通常只有不到四分之一的时间用于将乘客从一个景点运送到另一个景点。
- **分析**:这意味着巴士大部分时间在空转,现在有了能容纳三分之一巴士的停车位,就可以使很多原本空转的巴士停下来,从而减少尾气排放,对建筑的损害也会显著减少,有力地支持了论点,当选。
- **D选项**:乘坐旅游巴士来帕利蒂托的游客比通过任何其他单一交通方式来的游客都多。
- **分析**:该选项只是比较了乘坐旅游巴士和其他交通方式的游客数量,与新停车位能否减少巴士尾气对建筑的损害无关,排除。
- **E选项**:一些找不到停车位的旅游巴士在乘客参观景点时会在帕利蒂托周围行驶。
- **分析**:这表明仍有一些巴士找不到停车位会继续行驶产生尾气,反而有削弱论点的意思,排除。
综上,正确答案是C选项。