为了让我们更好的适应SAT考试，SAT考试官网每天都会有SAT官方每日一题，下面是澳际小编为您整理的2017年2月13日SAT题目，是阅读题，让我们一起来看一看这道题目吧。

　　Critical Reading>Select an Answer

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

　　Ware is an ornithologist at the Intermountain Bird Observatory in Boise, Idaho. She and hercolleagues studied the reactions by birds to the sounds of vehicles. And they did it withoutpaving 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 "phantomroad" through the wilderness, which boosted local noise levels 10 decibels higher than those inthe surrounding forest.

　　Turns out just the sounds of traffic scared away a third of the area's usual avian visitors, andcut species diversity too. And birds of multiple species were not able to pack on as much fatto 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 headdown, 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 busyenough to produce these fects. And, short of closing park roads to traffic, she says thingslike rubberized asphalt and lower speed limits could help cut the noise. "Glacier National Park isgoing to put up signs, that instead of showing your speed and preventing people fromspeeding, it's going to show how loud their car is on the road." Which, hopully, will continueto encourage wilderness lovers to leave no trace—visible or audible.

　　The primary purpose of the second paragraph is to ____

　　(A) establish the credentials of researchers who conducted an experiment.

　　(B) present a hypothesis a group of researchers set out to investigate.

　　(C) identify the locations of the sites where a study was conducted.

　　(D) outline the methodology researchers used in a study.

　　澳际培训提醒各位参加准备sat考试的同学，仔细看完以上的sat考试官网题目，然后再看下面的SAT题目答案更有效哦。

　　答案：D

　　解析：

　　Choice D is the best answer. In the second paragraph the author's main focus is on outlining the methods Ware and her colleagues used in their study. The author explains that the researchers used speakers to simulate a road that raised noise levels by 10 decibels in order to study birds' reactions to the noise.

　　以上就是澳际小编为根据SAT考试官网最新信息，为您整理的2017年2月13日SAT题目，目的是为了让我们更好的适应SAT考试，如果在备考过程中遇到任何问题，欢迎随时咨询澳际培训，为您提供最专业、最全面的解答。

　　SAT金牌一对一

　　想要快速提分，一对一最适合你

　　1一对一会根据你的实际情况制定计划

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　　4一对一授课的吸收率是大班课的5倍

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　　数据证明一对一授课的吸收率，是大班课的5倍!

　　澳际标准化SAT课程教学体系——平均教龄5年以澳际师研发，历经8年SAT考试实战验证，数据证明一对一授课的吸收率，一对一授课效率是小班授课的2~3倍，是大班课的5倍，最大限度保证学习效果，家长要做的就是放心把孩子交给澳际。

　　一对一授课能为你做什么?

　　一对一的授课非常适合想要快速提分的学生，它的吸收率比班课更高，排课更为灵活，这意味着用更短的时间达成目标。尤其是想要冲击高分的学生，很难在约定俗成的班课上有针对性地弥补短板。老师在一对一的形式下，也能更好地照顾到学生的需求。以作文批改为例，如果是班课就难以实现，因为数量太多了，费时费力。但在澳际的一对一授课中，每位学生都能获得经老师2次修改成文的文章4-6篇。想在25分钟内流畅地写出500词以上的文章，没有这个打磨的过程，谈何容易。

　　自由安排上课时间，网络课堂克服地理限制

　　SAT一对一课程

　　课程介绍：SAT资深教师针对考点重点点拨，从基础到强化全面提高

　　课程教材：SAT官方指南、SAT历年考试真题集、澳际名师内部讲义

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