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【托福阅读】精选阅读真题长难句50句
【托福阅读】精选阅读真题长难句50句
1、 Later experiments in which researchers played recordings of songs to young
birds showed just how precise this influence was, many of them would learn
the exact pattern of the recording they had heard.
2、 The crude song of a bird reared in isolation gives some clues as to what this
rough idea may be the length, the frequency range and the breaking up into
notes are all aspects of chaffinch song shared between normal birds and
those reared in isolation.
3、 Whatever the nature of the learning rules in a particular species, there is no
doubt that they are effective, it is very unusual to hear a wild bird singing a
song which is not typical of its own species despite the many different songs
which often occur in a small patch of woodland.
4、 Chemical analysis of bones enables archaeologists to determine the
proportion of meat to vegetable foods in the diet by measuring the proportion
of calcium to strontium in ancient bone because strontium in place of calcium
in bones comes primarily from ingested plants.
5、 Each dwelling had a different arrangement of the giant bones, which came
from the skeletons of long-dead animals retrieved from the surrounding area
by occupants of the site, not from animals they had recently hunted.
6、 In a precedent-setting decision, the Federal Energy Regulatory Commission
ordered the dam removed after concluding that the environmental and
economic benefits of a free-flowing river outweighed the electricity generated
by the dam.
7、 Built nearly a century ago to provide power to lumber and paper mills in the
town of Port Angeles, these dams blocked access to upstream spawning beds
for six species of salmon on what once was one of the most productive
salmon rivers in the world.
8、 The Hetch Hetchy Dam in Yosemite National Park might be taken down to
reveal what John Muir, the founder of the prestigious environmental
organization Sierra Club, called a valley “just as be
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