The scientist has put forth a newtheory in his research field．题目和参考答案——青夏教育精英家教网——

题目内容

18．The scientist has put forth a newtheory（理论） in his research field．

分析这个科学家已经在他的研究领域提出一个新的理论．

解答答案：theory，考查名词的用法，由中文意思可知使用名词theory，由前面冠词a可知使用其单数形式，故答案为theory．

点评考查词汇的记忆，在平时的学习中，要对词汇的应用进行积累．

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D．we need to be alone
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"There is no doubt that the numbers are in free fall．I'd be surprised if they even last as long as 20 years，"said Laurence Frank，project director of Living With Lions，a Kenya-based animal protection organization?i?When I first came here 30years ago，I would always hear lions roaring across the land at night and see their tracks in the morning．Now that is very rare．
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Animal lovers are making a new strategy to save the animals．Part of the measures will include tracking lions fitted with radio collars in the Amboseli area in southern Kenya，close to the border with Tanzania．
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25．What is the main reason of Kenya appreciating lions'existence？D
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B．Lions are among the most endangered animals．
C．Lions are a subject of great concern to Kenyans．
D．Lions are the major appeal for foreign tourists．
26．What does Laurence Frank mean by saying"they even last as long as 20years"？A
A．It is alarming that the number of lions is declining at a high speed．
B．It is amazing that he has tolerated the decline for such a long time．
C．It is fascinating that many evidences have proven the decline trend，
D．It is surprising that a lion should live as long as twenty years in Kenya．
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C．Natural disasters．
D．Outbreaks of epidemics （流行病）．

3．Most people wrongly believe that when people reach old age，their families place them in nursing homes．They （57）are left（leave） in the hands of strangers for the rest of their lives．Their grown children visit them （58）occasionally（occasion），but more often，they do not have any regular visitors．The truth is that the idea is an unfortunate myth-an （59）imaginable（imagine） story．In fact，family members provide the most care（60）that elderly people need．Samuel Prestoon，a sociologist，has studied （61）how the American family is changing．He has reported that by the time the average American couple reach 40 years of age，they have more parents than children．Moreover，because people today live longer after an illness than before，family members must provide long-term care．More （62）psychologists （psychology） have found that all caregivers believe that they are the best people for the job．Social workers interviewed caregivers to find out why they took （63）on the responsibility of caring for （64）an elderly relative．Many caregivers thought they had obligation 9 （help） their relatives，stating that helping others make them feel more useful．Most hoped th at by helping someone，they would deserve care when they became old and dependent．Caring for the elderly and
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C．A discounted price．
D．Free visits to New York's museums．
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C．They can still visit it after it closes．
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