为了让我们更好的适应sat考试，sat官网每天都会有sat官方每日一题，下面是小编为您整理的2016年5月sat官方每日一题，是关于阅读的，让我们一起来看一看这道阅读题吧。

　　Building a road through wilderness certainly has a visible impact on local flora and fauna—you're physically paving over a slice of what was once habitat. But roads have less obvious fects, too. Like the introduction of traffic noise, which also takes a toll. "You can see an oil spill but you can't see a traffic noise spill. So convincing people that it's important is a little more difficult," said Heidi Ware.

　　Ware is an ornithologist at the Intermountain Bird Observatory in Boise, Idaho. She and her colleagues studied the reactions by birds to the sounds of vehicles. And they did it without paving the great outdoors. Instead, they mounted 15 pairs of speakers on Douglas fir trees, along a ridge near Boise, and played traffic noise. They thus created what they call a "phantom road" through the wilderness, which boosted local noise levels 10 decibels higher than those in the surrounding forest.

　　Turns out just the sounds of traffic scared away a third of the area's usual avian visitors, and cut species diversity too. And birds of multiple species were not able to pack on as much fat to fuel their migrations, when they were forced to dine to the soundtrack of traffic.

　　Follow-up experiments in the lab found that, when it's noisy, birds spend a lot less time head down, pecking at food, and a lot more time scanning their surroundings.

　　Ware says Yosemite, Glacier and Rocky Mountain National Parks all have roads that are busy enough to produce these fects. And, short of closing park roads to traffic, she says things like rubberized asphalt and lower speed limits could help cut the noise. "Glacier National Park is going to put up signs, that instead of showing your speed and preventing people from speeding, it's going to show how loud their car is on the road." Which, hopully, will continue to encourage wilderness lovers to leave no trace—visible or audible.

　　The underlined word "encourage" most nearly means __________

　　(A) cultivate.

　　(B) stimulate.

　　(C) reassure.

　　(D) strengthen.

　　答案：B

　　解析：

　　Choice B is the best answer. In this context, "encourage" most nearly means "stimulate," or to cause to happen or develop. The author states that measures such as signs showing low loud cars are may encourage people not to cause harm, visible or otherwise, to the wilderness. He means that such measures may cause people to change their behavior.

　　为了让我们更好的适应sat考试，sat官网每天都会有sat官方每日一题，上面是小编为您整理的2016年5月sat官方每日一题，是关于阅读的，让我们一起来看一看这道阅读题吧。如果想了解更多关于sat考试的相关信息，请关注澳际教育平台的sat考试频道，小编会为大家持续更新信息，欢迎您的访问。

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