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_________
[A] tended [B] feared [C] happened [D] threatened
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Gradually he ( )to realize what he had said that day was wrong.
A、wantedB、cameC、ledD、happened
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Influenza（流感）Influenza has been with us a long time. According to some Greek writers___1___ medical history, the outbreak of 412 B. C. was of influenza. The same has been suggested of the sickness___ 2___swept through the Greek army attacking Syracuse in 395B. C. Influenza is a disease that moves most quick-ly among people living in___ 3___ conditions,hence,it is likely to attack armies.___4___ the nineteenth century there were five widespread outbreaks of influenza. The last of the five ___5 ___in 1889 and marked the beginning of the story of influenza in our time.___ 6 ___the recent outbreak,it started in Asia.For more than forty years before that outbreak,influenza had steadily ___7___ and was be-lieved to be dying out. A new group of outbreaks was___ 8 ___by the great outbreak of 1889一 1890 and for the next quarter of a century influenza remained a constant threat.In April 1918 influenza broke out among American troops stationed in France. It quickly spread through all the___ 9___ but caused relatively few deaths. Four months later,however,a second outbreak started which ___10___ to be a killer. It killed not only the old and already sick but also healthy young adults. It ___11___ through every country in the world,only a few distant islands in the South Atlantic and the Pacific remaining___12___.It brought the life of whole countries to stop,food___13___stopped and work loss was very great.Before the great outbreak ended,it had killed at ___14 ___ 15 million people. Thereafter,there have been several great outbreaks throughout the world. It is thus___15___that influenza is a terrible infection that we have to pay more attention to.5._________A: changedB: stoppedC: sufferedD: happened
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Influenza（流感）Influenza has been with us a long time.According to some Greek writers_________(51)medical history, the outbreak of 412 B.C.was of influenza. The same has been suggested of the sickness_________(52)swept through the Greek army attacking Syracuse in 395 B.C.Influenza is a disease that moves most quickly among people living in_________(53)conditions,hence,it is likely to attack armies.__________(54)the nineteenth century there were five widespread outbreaks of influenza. The last of the five________（55)in 1889 and marked the beginning of the story of influenza in our time.________(56)the recent outbreak,it started in Asia.For more than forty years before that outbreak,influenza had steadily_______(57)and was believed to be dying out.A new group of outbreaks was_________(58)by the great outbreak of 1889-1890 and for the next quarter of a century influenza remained a constant threat.In April 1918 influenza broke out among American troops stationed in France.It quickly spread through all the___________(59)but caused relatively few deaths.Four months later,however,a second outbreak started which__________(60)to be a killer. It killed not only the old and already sick but also healthy young adults. It________(61)through every country in the world,only a few distant islands in the South Atlantic and the Pacific remaining_________(62).It brought the life of whole countries to stop,food_________(63)stopped and work loss was very great.Before the great outbreak ended,it had killed at_______(64)15 million people.Thereafter,there have been several great outbreaks throughout the world.It is thus__________(65) that influenza is a terrible infection that we have to pay more attention to._________(55)A:changedB:stoppedC:sufferedD:happened
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Biologists estimate that as many as 2 million lesser prairie chickens---a kind of bird living on stretching grasslands—once lent red to the often gray landscape of the midwestern and southwestern United States.But just some 22,000 birds remain today,occupying about 16%of the species’historic range.The crash was a major reason the U.S Fish and Wildlife Service（USFWS）decided to formally list the bird as threatened.“The lesser prairie chicken is in a desperate situation,”said USFWS Director Daniel Ashe.Some environmentalists,however,were disappointed.They had pushed the agency to designate the bird as“endangered,”a status that gives federal officials greater regulatory power to crack down on threats.But Ashe and others argued that the“threatened”tag gave the federal government flexibility to try out new,potentially less confrontational conservations approaches.In particular,they called for forging closer collaborations with western state governments,which are often uneasy with federal action and with the private landowners who control an estimated 95%of the prairie chicken’s habitat.Under the plan,for example,the agency said it would not prosecute landowner or businesses that unintentionally kill,harm,or disturb the bird,as long as they had signed a range—wide management plan to restore prairie chicken habitat.Negotiated by USFWS and the states,the plan requires individuals and businesses that damage habitat as part of their operations to pay into a fund to replace every acre destroyed with 2 new acres of suitable habitat.The fund will also be used to compensate landowners who set aside habitat,USFWS also set an interim goal of restoring prairie chicken populations to an annual average of 67,000 birds over the next 10 years.And it gives the Western Association of Fish and Wildlife Agencies（WAFWA）,a coalition of state agencies,the job of monitoring progress.Overall,the idea is to let“states”remain in the driver’s seat for managing the species，”Ashe said.Not everyone buys the win-win rhetoric Some Congress members are trying to block the plan,and at least a dozen industry groups,four states,and three environmental groups are challenging it in federal court Not surprisingly,doesn’t go far enough“The federal government is giving responsibility for managing the bird to the same industries that are pushing it to extinction,”says biologist Jay Lininger.
The“threatened”tag disappointed some environmenta lists in that it_____A.was a give-in to governmental pressure
B.would involve fewer agencies in action
C.granted less federal regulatory power
D.went against conservation policies
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第二篇Don't Count on DungConservationists（自然保护主义者）may be miscalculating the numbers of the threatened animals such as elephants,say African and American researchers.The error occurs because of a flaw in the way they estimate animal numbers from the piles of dung （粪）the creatures leave behind.The mistake could lead researchers to think that there are twice as many elephants as there really are in some regions,according to Andrew Plumptre of the Wildlife Conservation Society(WCS)in New York.Biologist Katy Payne of Cornell University in Ithaca,New York,agrees.“We really need to know elephant numbers and the evidence that we have is quite indirect,"says Payne,who electronically tracks elephants.Counting elephants from planes is impossible in the vast rainforests of Central Africa.So researchers often estimate elephant numbers by counting dung piles in a given area.They also need to know the rate at which dung decays.Because it's extremely difficult to determine these rates,however,researchers counting elephants in one region tend to rely on standard decay rates established elsewhere.But researchers at the WCS have found that this decay rate varies from region to region depending on the climate and environment.Using the wrong values can lead the censusastray（离开正道）,says Plumptre.He and his colleague Anthony Chifu Nchanji studied decaying elephant dung in the forests of Cameroon.They found that the dung decayed between 55 and 65 per cent more slowly than the dung in the rainforests of neighbouring Gabon.If researchers use decay rates from Gabon to count elephants in Cameroon,they would probably find more elephants than are actually around.This could mean estimates in Cameroon are at least twice as high as those derived from decay rates calculated locally,says Plumptre."However accurate your dung densityestimate might be,the decay rate can severely affect the result.''Plumptre also says that the dung-pile census should be carried out over a region similar in size to an elephant's natural range.The usual technique of monitoring only small, protected areas distorts numbers because elephants move in and out of these regions,he says."If the elephant population increases within the protected area,you can not determine whether it is a real increase or whether it is due to elephants moving in because they are being poached（入侵偷猎）outside."Plumptre says that similar problems may also affect other animal census studies that rely on indirect evidence such as nests,tracks or burrows（地洞）.The word "threatened" in the first sentence of the first paragraph could be best replaced byA:"endangered".B:"frightened".C:"killed".D:"angered".
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People are more_______to spend money on goods with an attractive look than those without.A.attracted
B.tempted
C.persuaded
D.tended
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