阅读下面短文，从每题所给的四个选项(A、B、C、D)中，选出最佳选项。

　　Most people think zoos are safe for animals, where struggles such as difficulty in finding food and avoiding natural enemies don't exist．Without such problems, animals in zoos should live to an old age．But that may not be true for the largest land animals on earth．Scientists have known that elephants in zoos often suffer from poor health．They develop diseases and behaviour changes．Sometimes, they even become infertile, or unable to have babies．

　　To learn more about how elephants are affected, a team of international scientists compared the life spans of elephants born in zoos with those living outdoors in their native lands．Zoos keep detailed records of all the animals, such as birth dates, illnesses, weight and death．These records made it possible for the researchers to analyse 40 years of data on 800 African and Asian elephants in zoos across Europe．The team found that female African elephants born in zoos lived an average of 16.9 years while those in the wild lived an average of 56 years．Scientists don't yet know why wild elephants seem to be so much better than their zoo-raised elephants．Georgia Mason, a biologist who led the study, thinks stress and obesity may be to blame．Zoo elephants don't get the same kind of exercise they would in the wild, and most are fat．

　　Another finding from the study showed that Asian elephants born in zoos were more likely to die early than Asian elephants caught 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．

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阅读下面短文，从短文后各题所给的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项。

　　When we talk about a bad man, we like to call him a“wolf”．But is it really true that the wolf stands for devil and ugliness？?

　　Have you read the book“The Wolf Totem”by a famous writer Jiang Rong, which tells the story of the relationship between wolves and human beings？Have you ever 　　1　　 the wolves' world？If you had, you would 　　2　　 the wolves．In the book, wolves are heroes on the large grassland．They know more about 　　3　　 than humans．They can attack lambs without disturbing their mothers．They also know how to 　　4　　 full use of the shape of land to 　　5　　 sheep．I believe that if wolves were humans, they would be 　　6　　 experts good at fighting．

　　The wolf is a kind of special creature that can deeply understand 　　7　　．Each wolf serves its group with its heart and soul．A 　　8　　 wolf has little power, but a pack of wolves 　　9　　 nothing．All the wolves obey the rules．　　10　　 they are defeated, they run away together．It is their teamwork 　　11　　 makes wolves powerful．

　　The wolves also have great self respect and won't 　　12　　 to anyone．The writer, who wrote the book“The Wolf Totem”,　　13　　 stole a one-month-old baby wolf and raised it very carefully．To his 　　14　　, he found the little wolf still wanted to go back with 　　15　　 wolves．He bit through the iron chain that limited him．The wolf was 　　16　　 and he never gave in, fighting 　　17　　 his death．The little wolf died as a glorious fighter．

　　I was shocked by this kind of 　　18　　：wolves are one of the most respected creatures on the earth．I want everyone to look at wolves in a 　　19　　 way．They are our teachers．They show us how to survive and 　　20　　 in this not simple but dangerous world．Please honor the wolves, please honor all these heroes of nature！

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完型填空，阅读下面短文，掌握其大意，然后从各题所给的四个选项(A、B、C、D)中，选出最佳选项。

　　When we talk about a wolf, we tend to describe it as a kind fierce creature．But is it really true that the wolf stands for devil and ugliness?

　　Have you read the book "The Wolf Totem'' 《狼图腾》by a famous writer Jiang Rong, which tells the story of the relationship between wolves and human beings? Have you ever 　　1　　 the wolves' world? If you had, you would 　　2　　 the wolves．In the book, wolves are heroes on the large grassland．They know more about 　　3　　 than humans．They can attack lambs without disturbing their mothers．They also know how to 　　4　　 full use of the shape of land to 　　5　　 sheep．I believe that if wolves were humans, they would be 　　6　　 at fighting．

　　The wolf is a kind of special creature that can deeply understand 　　7　　．Each wolf serves its group with its heart and soul．A 　　8　　 wolf has little power, but a pack of wolves 　　9　　 nothing．All the wolves obey the rules．　　10　　 they are defeated, they run away together．It is their teamwork 　　11　　 makes wolves powerful．

　　The wolves also have great self-preservation and won't 　　12　　 to anyone．The writer, who wrote the book "The Wolf Totem", 　　13　　 stole a one-month-old baby wolf and raised it very carefully．To his 　　14　　 , he found the little wolf still wanted to go back with 　　15　　 wolves．The little wolf bit through the iron chain that limited it．The wolf was 　　16　　 and never gave up fighting 　　17　　 its death．It seemed that the little wolf died as a glorious fighter．

　　I was shocked by this kind of 　　18　　 wolves which are one of the most respected creature on the earth．I want everyone to look at wolves in a 　　19　　 way．They are our teachers．They show us how to survive and 　　20　　 this not simple but dangerous world．Please honor the wolves, please honor all these heroes of nature!

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