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[活动公告] 【新SAT考试每日一练】精选题目+重点单词+答案解析(2017/2/20- Reading)

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发表于 2017-2-20 10:08 | 小站社区iPhone客户端

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2017年2月【新SAT 考试每日一练】活动

2017/2/20   Reading

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今天给大家分享的练习题目是:

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 effects, 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 effects. 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, hopefully, will continue to encourage wilderness lovers to leave no trace—visible or audible.

Based on the passage, which of the following would most likely result from the construction of a busy road in a forest that is a habitat for birds?
(A) The birds become used to unnatural noise and start building their nests dangerously close to the road.
(B) Migration patterns start to change because the birds run out of energy sooner than they previously did.
(C) The birds begin to dwell in quieter parts of the surrounding forest and deplete the available resources in those habitats.
(D) Predation begins to increase because the birds are unable to monitor their surroundings for predators.


重点单词:
rocky        ['rɔki]        adj. 岩石的,像岩石的,坚硬的,麻木的,困难重重的       
deplete        [di'pli:t]        vt. 耗尽,使 ... 空竭       
slice        [slais]        n. 薄片,切片       
available        [ə'veiləbl]        adj. 可用的,可得到的,有用的,有效的       
diversity        [dai'və:siti]        n. 差异,多样性,分集       
migration        [mai'greiʃən]        n. 移民,移往,移动       
infer        [in'fə:]        vt. 推断,推论,猜测,暗示       
critical        ['kritikəl]        adj. 批评的,决定性的,危险的,挑剔的       
observatory        [əb'zə:və.tri]        n. 天文台,气象台,了望台       
spill        [spil]        v. 溢出,洒,使 ... 流出,泄漏

答案及解析:

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