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第三部分：阅读
第一节：阅读理解（共12小题；每小题2分，满分24分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices（装置）themselves. University of Missouri（MU） researchers are developing a nuclear energy source that is smaller, lighter and more efficient.
“To provide enough power, we need certain methods with high energy density（密度）”，said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope（放射性同位素） battery can provide power density that is much higher than chemical batteries.”
Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro / nanoelectromechanical systems （M/NEMS）. Although nuclear batteries can cause concerns, Kwon said they are safe.
“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”
His new idea is not only in the battery’s size, but also in its semiconductor（半导体）. Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.
“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure（晶体结构）of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”
Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.
1．Which of the following is true of Jae Kwon?
A．He teaches chemistry at MU.
B．He developed a chemical battery.
C．He is working on a nuclear energy source.
D．He made a breakthrough in computer engineering.
2．Jae Kwon gave examples in Paragraph 4_________.
A．to show chemical batteries are widely applied.
B．to introduce nuclear batteries can be safely used.
C．to describe a nuclear-powered system.
D．to introduce various energy sources.
3．Liquid semiconductor is used to _________.
A．get rid of the radioactive waste
B．test the power of nuclear batteries.
C．decrease the size of nuclear batteries
D．reduce the damage to lattice structure.
4．According to Jae Kwon, his nuclear battery _______.
A．uses a solid semiconductor.
B．will soon replace the present ones.
C．could be extremely thin.
D．has passed the final test.
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A deadly strain of avian flu may have passed between people for the first time, experts believe.The avian influenza A (H7N9) virus is thought to have been transmitted between father and daughter in eastern China, according to research published online by the British Medical Journal (BMJ).
The findings provide the strongest evidence yet of H7N9 transmission between humans since its discover in February, but its ability to transmit itself was deemed "limited and non-sustainable" by the Chinese researchers behind the study.At the end of June 133 cases had been reported, including 43 deaths. Most infections have been among people visiting markets, selling live birds or among those who had contact with live poultry（家禽） in the seven to 10 days before becoming ill.
The latest study examined the case of a 60-year-old father who regularly visited a live poultry market and became ill five to six days after his last visit in March. He was admitted to hospital with fever, cough and shortness of breath. Despite intensive care treatment he died of multiple organ failure on 4 May. His 32-year-old daughter, who was previously healthy, looked after him at his bedside before he was admitted to intensive care. She had no known exposure to live poultry before falling ill with a very high temperature, cough and fever. The daughter developed symptoms six days after her last contact with her father and was admitted to hospital where she died of multiple organ failure on 24 April.
Follow-up investigations(调查) uncovered almost genetically identical virus strains from each patient, suggesting transmission from father to daughter. Another 43 people were also tested who had had close contact with the father, daughter or both.
Dr Peter Horby, senior clinical research fellow at the Oxford University Clinical Research Unit in Hanoi, Vietnam, said of the study: "The most likely source of infection for the daughter was her father, during the period that she cared for him while he was ill. "He said “limited person to person transmission had been reported for other strains like H5N1 , H7N7, and the pig origin flu virus H3N2. Those strains had been around for more than a decade but have not progressed any further down the path towards a world-wide virus.” “Limited human-to-human transmission of H7N9 virus is therefore not surprising, but strengthening to monitor it was still needed,” Dr Horby added.
1.What’s the main idea of the passage ?
A. The findings about H7N9 transmission only between father and daughter .
B. H7N9 transmission may be spreading between people .
C. 133 cases of H7N9 transmission have been reported .
D. Both the father and daughter died of multiple organ failure.
2.The reason why the daughter died of multiple organ failure was that _____.
A. she fell ill with a very high temperature, cough and fever.
B. she was exposed to live poultry before falling ill.
C. she had close contact with the father while caring for her sick father .
D. she sold live birds in five to six days before falling ill .
3.Which of the following is Wrong about H7N9 transmission?
A. It was limited and non-sustainable
B. It was person to person transmission
C. It wasn’t progressed any further down the path towards a world-wide virus.
D. It happened between father and daughter .
4.The underlined word s “was deemed” in paragraph 2 probably means _______
A. was decreased B. was regarded as
C. was thought of D. was developed
5.What type of writing is the article likely to be ?
A. A news report. B. Popular science.
C.A medical report D.A medical findings
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A deadly strain of avian flu may have passed between people for the first time, experts believe.The avian influenza A (H7N9) virus is thought to have been transmitted between father and daughter in eastern China, according to research published online by the British Medical Journal (BMJ).
The findings provide the strongest evidence yet of H7N9 transmission between humans since its discover in February, but its ability to transmit itself was deemed "limited and non-sustainable" by the Chinese researchers behind the study.At the end of June 133 cases had been reported, including 43 deaths. Most infections have been among people visiting markets, selling live birds or among those who had contact with live poultry（家禽） in the seven to 10 days before becoming ill.
The latest study examined the case of a 60-year-old father who regularly visited a live poultry market and became ill five to six days after his last visit in March. He was admitted to hospital with fever, cough and shortness of breath. Despite intensive care treatment he died of multiple organ failure on 4 May. His 32-year-old daughter, who was previously healthy, looked after him at his bedside before he was admitted to intensive care. She had no known exposure to live poultry before falling ill with a very high temperature, cough and fever. The daughter developed symptoms six days after her last contact with her father and was admitted to hospital where she died of multiple organ failure on 24 April.
Follow-up investigations(调查) uncovered almost genetically identical virus strains from each patient, suggesting transmission from father to daughter. Another 43 people were also tested who had had close contact with the father, daughter or both.
Dr Peter Horby, senior clinical research fellow at the Oxford University Clinical Research Unit in Hanoi, Vietnam, said of the study: "The most likely source of infection for the daughter was her father, during the period that she cared for him while he was ill. "He said “limited person to person transmission had been reported for other strains like H5N1 , H7N7, and the pig origin flu virus H3N2. Those strains had been around for more than a decade but have not progressed any further down the path towards a world-wide virus.” “Limited human-to-human transmission of H7N9 virus is therefore not surprising, but strengthening to monitor it was still needed,” Dr Horby added
- 1.
What’s the main idea of the passage ?
- A.The findings about H7N9 transmission only between father and daughter
- B.H7N9 transmission may be spreading between people
- C.133 cases of H7N9 transmission have been reported
- D.Both the father and daughter died of multiple organ failure
- A.
- 2.
The reason why the daughter died of multiple organ failure was that _____
- A.she fell ill with a very high temperature, cough and fever
- B.she was exposed to live poultry before falling ill
- C.she had close contact with the father while caring for her sick father
- D.she sold live birds in five to six days before falling ill
- A.
- 3.
Which of the following is Wrong about H7N9 transmission?
- A.It was limited and non-sustainable
- B.It was person to person transmission
- C.It wasn’t progressed any further down the path towards a world-wide virus
- D.It happened between father and daughter
- A.
- 4.
The underlined word s “was deemed” in paragraph 2 probably means _______
- A.was decreased
- B.was regarded as
- C.was thought of
- D.was developed
- A.
- 5.
What type of writing is the article likely to be ?
- A.A news report
- B.Popular science
- C.A medical report
- D.A medical findings
- A.
A deadly strain of avian flu may have passed between people for the first time, experts believe.The avian influenza A (H7N9) virus is thought to have been transmitted between father and daughter in eastern China, according to research published online by the British Medical Journal (BMJ).
The findings provide the strongest evidence yet of H7N9 transmission between humans since its discover in February, but its ability to transmit itself was deemed "limited and non-sustainable" by the Chinese researchers behind the study.At the end of June 133 cases had been reported, including 43 deaths. Most infections have been among people visiting markets, selling live birds or among those who had contact with live poultry（家禽） in the seven to 10 days before becoming ill.
The latest study examined the case of a 60-year-old father who regularly visited a live poultry market and became ill five to six days after his last visit in March. He was admitted to hospital with fever, cough and shortness of breath. Despite intensive care treatment he died of multiple organ failure on 4 May. His 32-year-old daughter, who was previously healthy, looked after him at his bedside before he was admitted to intensive care. She had no known exposure to live poultry before falling ill with a very high temperature, cough and fever. The daughter developed symptoms six days after her last contact with her father and was admitted to hospital where she died of multiple organ failure on 24 April.
Follow-up investigations(调查) uncovered almost genetically identical virus strains from each patient, suggesting transmission from father to daughter. Another 43 people were also tested who had had close contact with the father, daughter or both.
Dr Peter Horby, senior clinical research fellow at the Oxford University Clinical Research Unit in Hanoi, Vietnam, said of the study: "The most likely source of infection for the daughter was her father, during the period that she cared for him while he was ill. "He said “limited person to person transmission had been reported for other strains like H5N1 , H7N7, and the pig origin flu virus H3N2. Those strains had been around for more than a decade but have not progressed any further down the path towards a world-wide virus.” “Limited human-to-human transmission of H7N9 virus is therefore not surprising, but strengthening to monitor it was still needed,” Dr Horby added.
71. What’s the main idea of the passage ?
A. The findings about H7N9 transmission only between father and daughter .
B. H7N9 transmission may be spreading between people .
C. 133 cases of H7N9 transmission have been reported .
D. Both the father and daughter died of multiple organ failure.
72. The reason why the daughter died of multiple organ failure was that _____.
A. she fell ill with a very high temperature, cough and fever.
B. she was exposed to live poultry before falling ill.
C. she had close contact with the father while caring for her sick father .
D. she sold live birds in five to six days before falling ill .
73. Which of the following is Wrong about H7N9 transmission?
A. It was limited and non-sustainable
B. It was person to person transmission
C. It wasn’t progressed any further down the path towards a world-wide virus.
D. It happened between father and daughter .
74. The underlined word s “was deemed” in paragraph 2 probably means _______
A. was decreased B. was regarded as C. was thought of D. was developed
75. What type of writing is the article likely to be ?
A. A news report. B. Popular science. C.A medical report D.A medical findings
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