Zoo elephants don’t live as long as those in the wild, according to a study sure to cause debate about keeping the giant animals on display. Researchers compared the life spans of elephants in European zoos with those living in Amboseli National Park in Kenya and others working on a timber enterprise in Buma. Animals in the wild or in natural working conditions had life expectancies twice than or more of their relatives in zoos.
Animal care activists have urged in recent years to discourage keeping elephants in zoos, largely because of the lack of space and small numbers of animals that can be kept in a group.
The researchers found that the median life span for African elephants in European zoos was 16.9 years, compared with 56 years for elephants who died of natural causes in Kenya’s Amboseli Park. Adding in those elephants killed by people in Africa lowered the median life expectancy there to 35.9 years. For the more endangered Asian elephants, the median life span in European zoos was 18.9 years, compared with 41.7 years for those working in the Burma Timber Enterprise. Median means half died younger than that age and half lived longer.
There is some good news, though. The life expectancies of zoo elephants have improved in recent years, suggesting an improvement in their care and raising, but “Protecting elephants in Africa and Asia is far more successful than protecting them in Western zoos.”
There are about 1,200 elephants in zoos, half in Europe, researchers concentrated on female elephants, which make up 80 percent of the zoo population. One amazing thing was that Asian elephants born in zoos had shorter life spans that those brought to the zoos from the wild.
Zoos usually lack large areas that elephants are used to in the wild, and that zoo animals often are alone or with one or two other unrelated animals, while in the wild they tend to live in related groups of 8 to 12 animals. In Asian elephants, baby death rates are two to three times higher in zoos than in the Burmese logging camps, and then, in adulthood, zoo-born animals die young. People are not sure why.
1.What is argued about in this passage?
A.Zoo elephants don’t live as long as those in the wild.
B.Elephants should not be on display.
C.Asian elephants are in danger.
D.Asia is far more successful in protecting elephants in zoos.
2.What does the underlined word “median” mean according to the passage?
A.Average B.Longest. C.Shortest. D.Ordinary.
3.Which of the following is Not the disadvantage of keeping elephants in zoos?
A.Limited number of relatives. B.Lack of space.
C.Shorter life expectancy. D.Less attention.
4.Who are expected to pay more attention to the issue addressed?
A.Zoologists. B.Animal care activists.
C.Zoo visitors. D.The public.
1.B
2.A
3.D
4.D
【解析】
试题分析:文章通过将野生大象和动物园饲养的大象对比,告诉读者:不应该将大象放在动物园中饲养,因为这样会影响它们的健康,缩短它们的寿命。
1.这是细节理解题。根据文章内容及第一段的第一句话(Zoo elephants don’t live as long as those in the wild, according to a study sure to cause debate about keeping the giant animals on display.)可知,人们对是否应该将大象关在动物园里展览产生了争论,故选B。
2.这是细节理解题。根据画线单词所在这一段的内容,尤其是该段的最后一句可知答案,故选A。
3.这是细节理解题。根据文章第二段提到了AB两项内容;由第三段内容可得出C项内容,故选D。
4.这是细节理解题。根据People are not sure why.故选D。
考点:这是一篇议论文。
点评:英语议论文有其独特的框架结构,让读者迅速捕捉作者的观点和思路,值得考生模仿,在文章开头,1.通过主题句鲜明地提出观点或引出将要论述的内容,防止在论述的过程中跑题。常用的句式有:引出话题/过渡,提出观点,表达立场。2.多种形式展示论据。议论文在写作手法上以议论为主,如通过对比观点、阐明原因、列举例子等,但有时也要运用说明、叙述、描写等手法。议论中的说明常以议论的开展创造条件或是议论的补充;叙述和描写应是为论点提供依据的,因此,叙述应该是概括的,描写应该是简要的。常用的句式有:总述原因,分层论述,列举例子,引出经历,分析原因,讨论后果.3.总结升华,冲申观点。在段或文章的结尾,考生可以用不同的语言表达,重申主题或提出解决问题的建议,从而使文章结构严谨、主题鲜明。常用的句式有:
科目:高中英语 来源:广西陆川中学2010届高三下学期第三次模拟考试 题型:完型填空
第二节完形填空(20小题;每小题1.5分,满分30分)
On a hike through the bush, he came across a young bull elephant standing with one leg raised in the air. The elephant 36 distressed(痛苦的), so Peter approached it very 37 .
He got down on one knee, examined the elephant's 38 and found a large piece of wood deeply embedded(刺入)in 39 . As carefully and as gently as he 40 , Peter worked the wood out with his hunting knife, 41 which the elephant gingerly put down its foot. The elephant 42 to face the man, and with a rather curious look on its face, 43 at him for several tense moments. Peter stood 44 , thinking of nothing else but being killed. 45 the elephant trumpeted(高声鸣叫)loudly, turned, and walked away. Peter never forgot that elephant or the events of that day.
Twenty years 46 , Peter was walking through the Chicago Zoo with his teenaged son. As 47 approached the elephant enclosure(围栏), one of the creatures turned and walked over to near 48 Peter and his son Cameron were 49 . The large bull elephant stared at Peter, lifted its front foot off the 50 , then put it down. The elephant did that several times then trumpeted loudly, 51 staring at the man.
Remembering the accidental meeting in 1986, Peter could not help 52 if this was the same elephant. Peter 53 his courage, climbed over the railing, and made his way into the enclosure. He walked 54 up to the elephant and stared back in wonder. The elephant 55 again, wrapped its trunk around one of Peter's legs and threw this stupid ass hard against the railing, killing him immediately.
Probably it wasn't the same elephant.
36.A.appeared B.proved C.seemed D.remained
37.A.quickly B.carelessly C.carefully D.pitifully
38.A.foot B.body C.tail D.head
39.A.her B.it C.them D.him
40.A.might B.could C.should D.would
41.A.after B.before C.with D.on
42.A.rushed B.turned C.walked D.stepped
43.A.stared B.watched C.noticed D.glanced
44.A.quiet B.silent C.frozen D.sad
45.A.Slowly B.Highly C.Lowly D.Finally
46.A.later B.after C.ago D.late
47.A.Peter B.Cameron C.they D.visitors
48.A.where B.when C.what D.that
49.A.sightseeing B.visiting C.walking D.standing
50.A.floor B.ground C.earth D.land
51.A.all at once B.all the while C.all the same D.all of a sudden
52.A.realizing B.feeling C.sensing D.wondering
53.A.gathered B.called C.took D.kept
54.A.round B.direct C.about D.right
55.A.shouted B.cried C.whispered D.Trumpeted
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Researchers at San Diego Zoo have been studying what has been described as the “secret language” of elephants. They have been monitoring(监测) communications between animals that cannot be heard by human ears.
The elephant’s call will be familiar to most people, but the animals also give out growls (低吼). Their growls, however, are only partly audible (听得见的); two-thirds of the call is at frequencies that are too low to be picked up by our hearing. To learn more about the inaudible part of the growl, the team attached (附在……上面) a microphone sensitive to these low frequencies and a GPS tracking system to eight of the zoo’s female elephants. The researchers could then relate the noises the animals were making to what they were doing. Matt Anderson, who led the project, told BBC News, “We’re excited to learn how they interact and contact with one another.”
The team has already learned that pregnant females use this low frequency communication to announce to the rest of their long gestation (妊娠期) of over two years, in the last 12 days we see the low part of the growl, which we can’t hear. This we believe is to announce to the rest of the herd that the baby is upcoming,” said Dr Anderson.
The researchers believe that this also warns the elephants to look out for coming danger. “You may think that a baby calf of about 300 pounds would not be as open to predation (捕食) as other species,” he says. “But packs of hyenas (袋狼) are a big threat in the wild.”
Female elephants are only in season for around four days every four years and these calls can be heard by males more than two miles away.
【小题1】Why some elephants’ call is called “secret language”?
A.Because it can’t be heard by human ears. |
B.Because it can only be heard by female elephants. |
C.Because people don’t know its meanings. |
D.Because people haven’t studied it completely. |
A.where the elephants usually go |
B.what the elephants’ growls really mean |
C.how mother elephants raise baby calves |
D.how elephants protect their babies. |
A.show the location where she is staying |
B.ask for help when she losses her way |
C.scare away the enemy |
D.let others know she will have a baby |
A.The elephants can speak like people. |
B.The wild elephants’ ways to fight against enemies. |
C.The “secret language” between elephants. |
D.The special life of female elephants. |
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文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
注意:1. 每处错误及其修改均仅限一词;
2. 只允许修改10处,多者(从第l1处起)不计分。
At the age of ten, I went on a school trip with my class to the zoo in Beijing. We left home very earlier in the morning because they had a long journey. We travelled to Beijing by the bus and we spent the whole day at the zoo. I can remember see an elephant for the first time. I was very exciting. At midday, we eat our picnic lunch in a park near the zoo. After lunch, we visited the reptile house or saw the snakes and crocodile. At five o’clock, we got the bus and drove home. What fantastic the trip was!
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Most people regard zoos as safe places for animals, where struggles such as difficulty finding food and avoiding predators(捕食性动物) don't exist. Without such problems, animals in zoos should live to a ripe old age. But that may not be true for the largest land animals on Earth. Scientists have known that elephants in zoos often develop diseases, joint problems and behavior changes. Sometimes, they even become unable to have babies.
To learn more about how captivity(监禁) affects elephants, a team of international scientists led by Mason, a biologist, compared the life spans of female elephants born in zoos with female elephants living outdoors in the wild. Zoos keep detailed records of all the animals in their care, documenting factors such as birth dates, illnesses, weight and death. These records made it possible for the researchers to analyze 40 years of data on 800 elephants in zoos.
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Scientists don't yet know for sure why wild elephants seem to live so much better than their zoo-raised counterparts. Mason thinks stress and obesity(肥胖) may be to blame. Zoo elephants don't get the same kind of exercise as they do in the wild, and most are very fat. Elephant social lives are also much different in zoos than in the wild, where they live in large groups.
Another finding from the study showed that elephants born in zoos were more likely to die earlier than elephants captured in the wild and brought to zoos. Mason suggests stress in the mothers in zoos might cause them to have babies that are less likely to survive.
The study raises some questions about acquiring more elephants to keep in zoos. While some threatened and endangered species living in zoos reproduce successfully and keep healthy populations, that doesn't appear to be the case with elephants.
1.The text tells us that zoo elephants are different from other zoo animals because they________
A.develop health problems. |
B.1ive to a ripe old age. |
C.are not afraid of predators. |
D.have difficulty eating food. |
2.What do the scientists find in their research?
A.Female elephants live longer than male elephants. |
B.Female zoo elephants die earlier than their wild counterparts. |
C.Female zoo elephants live longer than their wild counterparts. |
D.Both elephants in zoos and those in the wild live in large herds. |
3.Which of the following does the author suggest in the last paragraph?
A.Zoo-born elephants should be attended more carefully |
B.Elephants are no longer an endangered species. |
C.It may not be a wise policy to keep elephants in the zoo. |
D.Zoos should keep more animals except elephants. |
4.Which of the following can be the best title?
A.Comparison between two species of elephants |
B.Longer lives for wild elephants |
C.Female elephants suffer from poor health. |
D.Longer lives for zoo animals. |
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文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
注意:1. 每处错误及其修改均仅限一词;
2. 只允许修改10处,多者(从第l1处起)不计分。
At the age of ten, I went on a school trip with my class to the zoo in Beijing. We left home very earlier in the morning because they had a long journey. We travelled to Beijing by the bus and we spent the whole day at the zoo. I can remember see an elephant for the first time. I was very exciting. At midday, we eat our picnic lunch in a park near the zoo. After lunch, we visited the reptile house or saw the snakes and crocodile. At five o’clock, we got the bus and drove home. What fantastic the trip was!
查看答案和解析>>
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