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7.Science can't explain the power of pets,but many studies have shown that the company of pets can help lower blood pressure (血压) and raise chances of recovering from a heart attack,reduce loneliness and spread all-round good cheer.
Any owner will tell you how much joy a pet brings.For some,an animal provides more comfort than a husband/wife.A 2002study by Karen Allen of the State University of New York measured stress (紧张) levels and blood pressure in people-half of them pet owners-while they performed 5minutes of mental arithmetic (算术) or held a hand in ice water.Subjects completed the tasks alone,with a husband/wife,a close friend or with a pet.People with pets did it best.Those tested with their animal friends had smaller change in blood pressure and returned most quickly to baseline heart rates.With pets in the room,people also made fewer math mistakes than when doing in front of other companions.It seems people feel more relaxed (放松)around pets,says Allen,who thinks it may be because pets don't judge.
A study reported last fall suggests that having a pet dog not only raises your spirits but may also have an effect on your eating habits.Researchers at Northwestern Memorial Hospital spent a year studying 36fat people and their equally fat dogs on diet-and-exercise programs; a separate group of 56people without pets were put on a diet program.On average,people lost about I1pounds,or 5% of their body weight.Their dogs did even better,losing an average of 12pounds,more than 15% of their body weight.Dog owners didn't lose any more weight than those without dogs but,say researchers,got more exercise overall-mostly with their dogs-and found it worth doing.

32.What does the text mainly discuss?A
A.What pets bring to their owners.
B.How pets help people calm down.
C.People's opinions of keeping pets.
D.Pet's value in medical research.
33.We learn from the text that a person with heart disease has a better chance of getting well ifA
A.he has a pet companion
B.he has less stress of work
C.he often does mental arithmetic
D.he is taken care of by his family
34.According to Allen,why did the people do better with pets around when facing stressful tasks?C
A.They have lower blood pressure.
B.They become more patient.
C.They are less nervous.
D.They are in higher spirits.
35.The research mentioned in the last paragraph reports thatA
A.people with dogs did more exercise
B.dogs lost the same weight as people did
C.dogs liked exercise much more than people did
D.people without dogs found the program unhelpful.

分析 本文属于说明文阅读,作者主要向我们介绍了宠物对我们的影响,尽管科学不能解释,比如有宠物的陪伴可以帮助降低血压,提高心脏病恢复的机会,并且可以感到放松,拥有一只宠物狗也会改变你的饮食习惯,使你得到更多的锻炼.

解答 32.A.主旨大意题,通读全文,可知本文主要讲述了宠物给它们的主人带来的好处,故选A.
33.A  细节理解题,根据第一段but many studies have shown that the company of pets can help lower blood pressure (血压) and raise chances of recovering from a heart attack,reduce loneliness and spread all-round good cheer.可知许多研究表明宠物的陪伴能帮助降低血压,提高心脏病恢复的机会,减少孤独和传递快乐,故选A.
34..C  细节理解题,根据第二段It seems people feel more relaxed (放松)around pets,says Allen,who thinks it may be because pets don't judge.可知艾伦认为人们与宠物在一起时会更放松,不紧张,因此面对压力时做的更好,故选C.
35.A  推理判断题,根据最后一段Dog owners didn't lose any more weight than those without dogs but,say researchers,got more exercise overall-mostly with their dogs-and found it worth doing.可知养狗的人们会得到更多的锻炼,故选A

点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.

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16.Scientists from the University of East Anglia have identified four new man-made gases that are contributing to the damage to the ozone(臭氧) layer.Two of the gases are accumulating at a rate that is causing concern among researchers.
Worries over the growing ozone hole have seen the production of chlorofluorocarbon (CFC) gases restricted since the mid 1980s.But the precise origin of these new,similar substances remains a mystery.
Lying in the atmosphere,the ozone layer plays a critical role in blocking harmful UV rays,which cause cancers in humans and reproductive problems in animals.
Scientists from the British Antarctic Survey were the first to discover a huge"hole"in the ozone over Antarctica in 1985.The evidence quickly pointed to CFC gases,which were invented in the 1920s,and were widely used in refrigeration.Extraordinarily,global action was rapidly agreed to deal with CFCs and the Montreal Protocol to limit these substances came into being in 1987.A total global ban on production came into force in 2010.
Now,the newly discovered four new gases can destroy ozone and are getting into the atmosphere from as yet unidentified sources.Three of the gases are CFCs and one is a hydrochlorofluorocarbon (HCFC),which can also damage ozone.
The research has shown that four gases were not around in the atmosphere at all until the 1960s,which suggests they are man-made.The scientists discovered the gases by analyzing polar snow pack.Air from this snow is a natural archive of what was in the atmosphere up to 100years ago.The researchers also looked at modern air samples,collected at remote Cape Grim in Tasmania.
They estimate that about 74,000tonnes of these gases have been released into the atmosphere.Two of the gases are accumulating at significant rates.However,they don't know where the new gases are being released from and this should be investigated.Possible sources include chemicals  for insecticide(杀虫剂) production and solvents(溶液)  for cleaning electronic ponents.The three CFCs are being destroyed very slowly in the atmosphere-so even if emissions(散发) were to stop immediately,they will still be around for many decades to come.
Of the four species identified,CFC-113a seems the most worrying as there is a very small but growing emission source somewhere,maybe from agricultural insecticides.We should find it and take it out of production.

63.What do we know about the newly discovered gases?B
A.Some are surely produced by the development of agriculture.
B.The CFCs will have a long impact once they are released.
C.They gather together in the atmosphere at a medium speed.
D.Their amounts are not large enough to cause damage to us.
64.The underlined word"archive"in Paragraph 6is closest to the meaning of"D"
A.state          B.resource          C.phenomenon        D.storeroom
65.What will the scientists probably attempt to do about the gases next?C
A.Find out what can replace things like insecticides and put them into use.
B.Find out how they destroy ozone and get rid of those in the atmosphere.
C.Find out where they are exactly from and stop them from being released.
D.Find out if HCFC is more harmful than CFCs and take proper measures.

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科目:高中英语 来源: 题型:阅读理解

9.The World Health Organization says there has been a sharp increase in the number of over-weight children in developing countries.In African countries,the WHO says the number of over-weight or obese children is twice as high as it was 20 years ago.Around the world,about 43 million children under the age of five were overweight in 2013.
    Overweight and obese children are more likely to become overweight and obese adults.The
condition can generate serious health problems like heart diseases.
     Francesco Branca is the director of the WHO Department of Nutrition for Health and Development.He says urban lifestyle makes people eat processed food more often,which has a high sugar,fat and salt content.He also says people are gaining weight because of their lack of activities.They travel in cars or other vehicles more than on foot.
     The WHO experts say to lower obesity rates is especially complex in countries that also deal with high rates of infectious(感染性的) diseases.
     The WHO has some basic solutions for individuals and countries.The organization says you should lower your intake of fat,sugar,salt and processed food and eat more fruits,'vegetables and increase physical activity.The WHO says these actions are especially important for children.
     And WHO expert Branca says mothers should breastfeed their babies for at least the first six months of life,if possible.More importantly,governments should consider providing vitamins for children and educational campaigns about problems linked to obesity would also help.In his view,government policies should deal with how food is marketed to children and food producers must balance quality and taste with the dangers of sugar,fat and salt."Reducing the number of overweight children will not be easy.The goal is difficult to meet even in wealthy countries."he adds.
51.What is the main idea of Paragraph l?B
A.Children in developing countries generally weigh too much.
B.Overweight children in developing countries have increased greatly.
C.The number of overweight children in the world has doubled.
D.The World Health Organization has increased greatly.
52.According to Branca,people are becoming overweight because of their changes inA
A.lifestyles                     B.transportation
C.physical condition             D.school educational.
53.Which of the following word can best replace the underlined word in Paragraph 2?D
A.cure         B.prevent       C.worsen        D.cause
54.According to WHO,which of the following is true?C
A.Poor nutrition is often related to children obesity.
B.To lower infectious disease rates is more complex than to lower obesity rates.
C.Eating less sugar and more vegetables helps lower obesity rates.
D.Increasing  physical activity is most effective to lower obesity rates.
55.What can we learn from the last Paragraph?B
A.Babies breastfed aren't likely to become overweight.
B.Governments should play a necessary role in fighting obesity.
C.Food producers should be stopped from marketing,food to children.
D.The number of overweight children decreases easily in wealthy countries.

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