题目内容
【题目】 Australia's worst pests(害虫)are the rabbits, ______ by a settler who released 24 into the wild for sport hunting. In less than 100 years, the rabbits grow into the millions of ones, leaving large areas of land looking like the surface of the moon due to thousands of rabbit caves. The spread of the rabbits in Australia was the fastest of all animals in the world. The spread of the rabbits' _______in 1950 cut the number, but it was not until 1997 when the spread of another disease targeted the pests that the number was finally brought under control. Farm losses due to rabbits today still ______ a surprising total A $200 million (US $112 million)a year.
The European red foxes, also released for sport hunting, are growing and eating sheep flocks, costing farmers A $40 million(US $22. 4 million)a year. The State of Victoria ______ a A $10(US $5. 6)prize for each fox tail and has gathered 25,000 in a few months.
Foxes are one of the biggest threats to wildlife in Australia. Foxes kill thousands of lambs, birds and native wildlife.
Now the government is paying more attention to this problem. Scientists ______ that they should import some wild dogs, which are natural enemies of rabbits and foxes. But how to control their ______ is also a problem. Scientists say they will not take any big action until they are sure not to bring another ecological(生态的)problem.
【1】A.discoveredB.introducedC.shownD.killed
【2】A.sadnessB.struggleC.diseaseD.tiredness
【3】A.keptB.remainedC.leftD.pushed
【4】A.catchesB.includesC.offersD.collects
【5】A.suggestB.solveC.discoverD.explain
【6】A.letterB.nameC.noteD.number
【答案】
【1】B
【2】C
【3】B
【4】C
【5】A
【6】D
【解析】
偶然因为打猎放到自然中的狐狸和兔子,成为当地的害虫。政府也在想各种办法来控制数量。
【1】句意:澳大利亚的害虫是兔子,由一个移民者为了打猎运动放到野外而引入的。
discovered发现;introduced引入;shown显示;killed杀害。根据“…who released 24 into the wild for sport hunting.”可知这些兔子是为了打猎运动放到野外而引入澳大利亚的,因此B选项符合句意。故选B。
【2】句意:1950年兔子疾病的传播减少了数量,但是直到1997年另一种疾病传播的时候害虫的数量才最终得到控制。
sadness悲伤;struggle斗争;disease疾病;tiredness疲劳。根据“...cut the number...以及“... the spread of another disease...”此空表示一种疾病的传播。故选C。
【3】句意:现在兔子仍然保持一个惊人的数量2亿,这导致农田的流失。
kept保持;remained保持;left留下;pushed推。结合句意可知此处表示“保持”,A和B选项均有“保持”的含义,但remain强调“继续停留于一处或保持原状态、情况性质而不改变”。故选B。
【4】句意:维多利亚州提供每只狐狸尾巴5.6美元的奖金,在短短几个月已经收集了25000条。
catches抓住;includes包括;offers提供;collects收集。根据此句的宾语prize可知,此空表示“提供(奖金)”。故选C。
【5】句意:科学家建议他们应该运输一些野狗,野狗是兔子和狐狸的天敌。
suggest建议;solve解决;discover发现;explain解释。根据“Now the government is paying more attention to this problem. ”可知政府正在关注这个问题,因此科学家提示建议应该怎么办。A选项符合句意。故选A。
【6】句意:但是怎么控制他们的数量也是一个问题。
letter信件;name名字;note字条;number数量。根据第一段和第二段介绍兔子和狐狸成为他们的威胁,因此如何控制他们的数量是关键问题。故选D。
完形填空题并不是单纯考查语法,也是考查学生综合运用语言的能力。因此,必须选择符合语法结构并能使上下文意义连贯的答案。有时候设置的选项具有迷惑性,如果单从语法角度分析,每个选项都是正确的,但是通过语境判断,只有一个选项能够传达文章意思。因此我们要回顾上文,兼顾下文,在文中寻找相关的线索或提示,从而确定答案。注意固定搭配,本文考查词汇辨析较多,就需要考生领会文章的主旨大意,然后通过前后句练习判断用词。并且词汇量的掌握也非常重要。