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  3. It’s 2:45 p.m. on a Wednesday, and Los Angeles Mayor Eric Garcetti is in the backseat of a black Chevy Tahoe that’s inching its

It’s 2:45 p.m. on a Wednesday, and Los Angeles Mayor Eric Garcetti is in the backseat of a black Chevy Tahoe that’s inching its

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问题     It’s 2:45 p.m. on a Wednesday, and Los Angeles Mayor Eric Garcetti is in the backseat of a black Chevy Tahoe that’s inching its way to city hall along the 101 freeway. This stretch of the often clogged road is eight lanes, but there are so many cars on it that everyone is moving at about 30 km/h, a single mass of steel and glass lurching toward downtown.
    Just a few hours earlier, Garcetti was traveling a lot faster. To get to an event in University City, about 16 km from his office, Garcetti took the city’s Red Line subway, which can reach speed of up to 110 km/h—a pace L.A.’s rush-hour drivers can only dream about. Persuading more Angelenos to take the train could go a long way toward solving one of L.A.’s most intractable problems. "We don’t need people to completely give up their cars," he says while holding onto a pole on the Red Line. "But right now, we average 1.1 people per car. If we could get that to 1.6, the traffic problem would go away."
    In L.A., cars are a source of smog, billions of dollars in lost productivity every year and endless frustration for residents. "Every working person plans their life around traffic in this town," say Zev Yaroslavsky, a Los Angeles County supervisor and longtime friend of Garcetti’s. "Building a transportation infrastructure is something that needs to be focused on, and Eric gets that." Should Garcetti, 43—who was elected in May as the youngest mayor of L.A. in more than a century—ever manage to get the freeways flowing, it would be a triumph. And it would only begin to cure what ails L.A.
    Los Angeles’ structural problems are daunting. The city has fewer jobs now than it did in 1990, with a regional unemployment rate that is more than 2 points higher than the national average. L.A. is also buckling under health care and pension costs and is scaling back public services to compensate. The 2014-2015 budget is projected to be $242 million in the red. As the Los Angeles 2020 Commission, a group of business, labor and public-sector leaders charged by the city council with diagnosing the region’s ills, put it in a December report, "Los Angeles is barely treading water while the rest of the world is moving forward."
In the first paragraph, the descriptions are about ______.
选项 A、traffic jam
B、car accidents
C、urban sprawl
D、population problems
答案A
解析 本段几处关键词的描写体现了本段的主旨及作者意图，如“inching its way(缓缓前行，寸步难行)”；“clogged road(堵塞的马路)”。即使上面两个词组都看不懂，至少我们能看懂其中的“moving at about 30 km／h”。汽车的速度达到每小时大约30公里是什么概念？就是拥堵的意思，故本段讨论的主要问题是交通拥堵，而在第二段的尾句出现了traffic problem，进一步证明文章主要讨论的是交通拥堵问题。因此，本题答案为选项A。
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