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1、2022年考博英语-西北大学考前模拟强化练习题（附答案详解）1. 单选题Sharks have gained an unfair reputation for being fierce predators of large sea animals. Humanitys unfounded fear and hatred of these ancient creatures is leading to a worldwide slaughter that may result in the extinction of many coastal shark species. The shark i
2、s the victim of a warped attitude of wildlife protection; we strive only to protect the beautiful, non-threatening parts of our environment. And, in our efforts to restore only non-threatening parts of our earth, we ignore other important parts.A perfect illustration of this attitude is the contrast
3、ing attitude toward another large sea animal, the dolphin. During the 1980s, environmentalists in the United States protested the use of driftnets of tuna fishing in the Pacific Ocean since these nets also caught dolphins. The environmentalists generated enough political and economic pressure to pre
4、vent tuna companies from buying tuna that had been caught in driftnets. In contrast to this effort on behalf of the dolphins, these same environmentalists have done very little to help save the Pacific Ocean sharks whose population has decreased nearly to the point of extinction. Sharks are among th
5、e oldest creatures on earth, having survived in the seas for more than 350 million years. They are extremely efficient animals, feeding on wounded or dying animals, thus that species such as the Great White Shark have manage to live in the oceans for so many millions of years is enough proof of thei
6、r efficiency and adaptability changing environments. It is time for us human, who may not survive another 1,000 years at the rate we are damaging the planet, to cast away our fears and begin considering the protection of sharks as an important part of a program for protection of all our natural envi
7、ronment.1.With which of the following topics is this passage primarily concerned?2.How did environmentalists manage to protect dolphins?3.About how long sharks lived on the planet?4.What is the authors tone in this passage?5.Which of the following best describes the organization of this passage?问题1选
8、项A.Sharks are efficient creatures with bad reputations.B.Sharks are some of the oldest creatures on earth.C.Sharks illustrate a problem in wildlife protection.D.The campaign to save dolphins was not extended to save sharks.问题2选项A.They prevented fishermen from selling them for meat.B.They pressured f
9、ishermen into protecting dolphins by law.C.They brought political pressure against tuna companies.D.They created sanctuaries where dolphin fishing was not allowed.问题3选项A.25 million yearsB.150 million yearsC.350 million yearsD.500 million years问题4选项A.explanatoryB.accusatoryC.gentleD.proud问题5选项A.order
10、 of importanceB.cause and effectC.statement and exampleD.chronological order【答案】第1题:C第2题:C第3题:C第4题:B第5题:C【解析】1.主旨大意题。结合全文内容可知，本文主要讲我们只努力保护环境中美丽、无害的部分，而忽略了其他需要保护的东西，比如鲨鱼，使得其濒临灭绝。由此可知，鲨鱼说明了野生动物保护中的一个问题，选项C符合原文主旨。2.细节事实题。根据第二段的二三句“During the 1980s, . caught in driftnets.”在20世纪80年代，美国的环保主义者抗议在太平洋使用漂网捕捞金
11、枪鱼，因为这些网也能捕获海豚。环保主义者施加了足够的政治和经济压力，阻止金枪鱼公司购买被漂网捕获的金枪鱼。选项C符合原文。3.细节事实题。根据第二段“Sharks are among the oldest creatures on earth, having survived in the seas for more than 350 million years.”鲨鱼是地球上最古老的生物之一，在海洋中生存了3.5亿年以上。选项C与原文表述一致。4.推理判断题。结合全文内容可知，作者是在谴责人们忽略了对鲨鱼的保护，所以选项B正确。5.推理判断题。文章第一段首先提出人们忽略了对鲨鱼的保护，第二段
12、举例来证明这个观点，所以本文的结构是陈述加举例，选项C正确。2. 单选题Humans are forever forgetting that they cant control nature. Exactly 20 years ago, a Time magazine cover story announced that “scientists are on the verge of being able to predict the time, place and even the size of earthquakes”. The people of quake-ruined Kobe (
13、神户) learned last week how wrong that assertion was.None of the methods praised two decades ago have succeeded. Even now, scientists have yet to discover a uniform warning signal that precedes all quakes, let alone any sign that would tell whether the coming quake is mild or a killer. Earthquake form
14、ation can be triggered by many factors, says Hiroo Kanamori, a seismologist at the California Institute of Technology. So finding one all-purpose warning sigh is impossible. One reason: quakes start deep in the earth, so scientists cant study them directly.If a quake precursor were found, it would s
15、till be impossible to warn humans in advance of all dangerous quakes. Places like Japan and California are filled with hundreds, if not thousands, of minor faults. It is impossible to place monitoring instruments on all of them. And these inconspicuous sites can be just as deadly as their better-kno
16、wn cousins like the San Andreas (圣安得列斯断层).Both the Kobe and the 1994 Northridge quakes occurred on small faults.Prediction would be less important if scientists could easily build structures to withstand tremors. While seismic engineering has improved dramatically in the past 10 to 15 years, every new quake revea
