2. 考研
  3. 　　When Carolyn Kurle first visited Alaska’s Hawadax Island, then known as Rat Island, she immediately noticed the silence. "When

　　When Carolyn Kurle first visited Alaska’s Hawadax Island, then known as Rat Island, she immediately noticed the silence. "When

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问题 　　When Carolyn Kurle first visited Alaska’s Hawadax Island, then known as Rat Island, she immediately noticed the silence. "When you’re on an island that’s never had rats, it’s just like birds everywhere—it’s really loud, " she says. " So when you get to an island that does have rats, you really notice because it’s【C1】________"
　　Nowadays Hawadax is once again a【C2】________place.【C3】________a decade after a successful effort to rid the island of its predatory rats,【C4】________of seabirds have returned. And the benefits have【C5】________across the island’s entire seashore ecosystem, which again【C6】________diverse life. These findings show that certain ecosystems can【C7】________with surprising speed【C8】________     given the chance.
　　" This study is a/an【C9】________of something positive that can happen when we humans take action to clean up after ourselves, " says Kurle, who is a conservation ecologist at the University of California. "It also【C10】________how everything is interlinked,【C11】________in coastal systems.
　　Kurle originally began studying rats’ ecological effects on the remote Aleutian archipelago. The voracious rodents colonized Hawadax in the 1780s, and they quickly【C12】________seabir【C13】________.【C14】_______birds, populations of snails, limpets and other species exploded, which invaded【C15】________habitat for other organisms. Kurle’s findings showed that the rats affected not just birds but the entire food【C16】________—all the way down to algae. Those early findings inspired the U. S. Fish and Wildlife Service to eradicate the rats by【C17】________      poison on Hawadax.
　　【C18】________rat-eradication projects have focused on the impact on marine ecosystems,【C19】________the Hawadax Island is really noteworthy. This is a very cool, elegant result from an academic ecology standpoint and, of course, is important【C20】________conservation.
【B6】
选项 A、accounts for
B、relies on
C、is filled with
D、adapts to
答案[C]
解析 本题考查动词词组辨析。四个选项分别为[A]accounts for“对……负有责任，对……做出解释，说明……的原因，导致，(比例)占”；[B]relies on“依赖，依靠”；[C]is filled with“富于，充满”；[D]adapts to“使适应于……”。根据后文生态系统得以恢复，可知该岛充满了各种各样的生物。故选项[C]正确。
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