大学英语阅读汇总

1、Is it possible to persuade mankind to live without war? War is an ancient institution which has existed for at least six thousand years. It was always bad and usually foolish, but in the past the human race managed to live with it.Modern ingenuity （仓I造力）has changed this. Either Man will abolish war,

2、 or war will abolish Man. For the present, it is nuclear weapons that cause the most serious danger, but bacteriological or chemical weapons, may before long, offer an even greater threat. If we succeed in abolishing nuclear weapons, our work will not be done. It will never be done until we have suc

3、ceeded in abolishing war. To do this, we need to persuade mankind to look upon international questions in a new way, not as contests of force, in which the victory goes to the side which is most skillful in killing people, but by arbitration 调解）in accordance with a greed principles of law. It is not

4、 easy to change very old mental habits, but this is what must be attempted.There are those who say that the adoption of this or that ideology would prevent war. I believe this to be a big error. All ideologies are based on dogmatic教条式的）statements which are, at best, doubtful, and at worst, totally f

5、alse. Their adherents believe in them fanatically狂热地）that they are willing to go to war in support of them.The movement of world opinion during the past few years has been very largely such as we can welcome. It has become a commonplace考生长谈）that nuclear war must be avoided. Of course very difficult

6、problems remain in the world, but the spirit in which they are being approached is a better one than it was some years ago. It has begun to be thought, even by the powerful men who decide whether we shall live or die, that negotiations should reach agreements even if both sides do not find these agr

7、eements wholly satisfactory. It has begun to be under stood that the important conflict nowadays is not between different countries, but between Man and the atom bomb.1、This passage implies that war now isA. as necessary as in the past B. as bad as in the past C. not so dangerous as in the past D. w

8、orse than in the past2、In the sentence To do this, we need to persuade mankind. （Line 6, Para.1）, his refers toA. abolishing war B. improving weapons C. solving international problems D. living a peaceful life3、From Paragraph 2, we learn that the author of the passageA. is a supporter of some modem

9、ideologies B. does not think that the adoption of any ideology could prevent warC. believes that the adoption of some ideologies could prevent war D .has no doubt about the truth of any ideologies4、The last paragraph suggests thatA. international agreements can be reached more easily now B. man begi

10、ns to realize the danger of nuclear war1、 nuclear war will definitely not take placeD. world opinionwelcomes nuclear war5、According to the author,.A. war is the only way to solve international disputes B. war will be less dangerous because of the improvement of weapons2、 war must be abolished if man

11、 wants to surviveC.it is impossible for man to live without warA useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or material adversely"害 地.Air pollution requires a veryflexi

12、ble definition that permits continuous change. When the first air pollution laws were established in England inthe fourteenth century, air pollutants were limited to compounds that could be seen or smelled a far cry （悬殊的差别.from the extensive list of harmful substances known today. As technology has

13、developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even watervapor （水蒸气）might be considered an air pollutant under certain conditions.Many of the more important air pollutants, such as sulfur oxides, carbon mono

14、xide, and nitrogen oxides, arefound in nature. As the Earth developed, the concentration啾度）of these pollutants were altered by variouschemical reactions; they became components in biogeochemical物地球化学的） cycles. These serve as an airpurification scheme by allowing the compounds to move from the air to

15、 the water or soil. On a global basis, nature'soutput of these compounds dwarfs that resulting from human activities. However, human production usually occurs in a localized area, such as a city.In this localized region, human output may be dominant and may temporarily overload the natural purif

16、icationscheme of the cycles. The result is an increased concentration of noxiousT售 的）chemicals in the air. Theconcentrations at which the adverse effects appear will be greater than theconcentrations that the pollutants wouldhave in the absence of human activities. The actual concentration need not

17、be large for a substance to be a pollutant;in fact the numerical value tells us little until we know how much of an increase this represents over the concentrationthat would occur naturally in the area. For example, sulfur dioxide has detectablehealth effects at0.08 parts permillion (ppm., which is

18、about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppmand is not usually a pollutant until its level reaches about 15 ppm.6、 It can be inferred from the first paragraph thatA. water vapor is an air pollutant in localized areas B. a substance becomes an air pollut

19、ant only in citiesC. the definition of air pollution will continue to change D. most air pollutants today can be seen or smelled7、 In what way can natural pollutants play an important role in controlling air pollution?A. They function as part of a purification process.B. They are dwarfed by the poll

20、utants produced by human activities.C.They are less harmful to living beings than are other pollutants.D.They have existed since the Earth developed.8、According to the passage, the numerical value Of the concentration level of a substance is only useful ifA. the other substances in the area are know

21、nB. it is a localized areaC. it can be calculated quicklyD. the naturallyoccurring level is also known9、Which of the following is best supported by the passage?A. To effectively control pollution, local government should regularly revise the air pollution laws.B. One of the most important steps in p

22、reserving natural lands is to better enforce air pollution laws.C. Scientists should be consulted in order to establish uniform limits for all air pollutants.D. Human activities have great impact on air pollution.10、The passage mainly discussesA. how much damage air pollutants can cause. B. the econ

23、omic impact on air pollutionD. the quantity of compoundsC. what constitutes an air pollutant added to the atmosphere【答案解析】1-6 DABAD6-10 CADDAIf it were only necessary to decidewhether to teach elementary science to everyone on a mass basis orto findind thegifted few andtake them as far as they can g

24、o, our task would be fairlysimple. The public school 36,however, has no suchchoice, for thejob must be 37 on at the same time.Because we depend so 38 uponscience andtechnology for our progress,wemust produce 39 in many fields. Because wc live in ademocraticnation, whose citizensmake the policies for

25、 the nation, largenumbers of us must be educated to understand, tosupport, and when necessary,to 40 thework of experts. The public school musteducate both producars andusers of scientific services.In education, there should be a goodbalance among the branches of knowledge that contribute to effectiv

26、ethinkingand wise judgment. Such balance is 41 by too much emphasison any one field. This questionofbalance involves not only the relation of thenatural sciences, the social sciences, and the arts but also relative 42 among the naturalsciencestbemselves.Similarly, wc must have a balance betweencurre

27、nt and 43 knowledge. The attention of thepublic is44 drawn to new possibilities inscientific fields and the discovery of new knowledge; theseshould not beallowed toturn ourattention away from the sound,45 materials thatform the basis of courses for beginners.A. awardedB . heavilyC. classicalD. displ

28、ayE. establishedF. systemG. involvedH.defeatedI.continuallyJ. specially K.emphases L. establishment M. specialists N. carded O. judge 答案解析：36-45 FNBMO HKCIEThe National Park Service in the United States will mark its1 anniversary in 2016.As it nears its second century, the Park Service plans to_2 it

29、seducational programs for students and teachers.national visit each year to for plans include 3 one hundredthousand students Theparks to learn about nature and history Yellowstone is believed to have been the world's first national park when itwas established in _4. Other students will _5 to see

30、 parks in faraway places through Skype and other _6 programs.nonprofit a partners is provide education. One of its Park The National Service also works with partners to organization called _7. Nature Bridge is celebrating its fortieth anniversary and says one million young people 8 its programs. The

31、organization works with students from parks as its uses national classrooms. It kindergarten through _9andprovides 10 at Yosemite National Park and fourother locations in California andthe northwestern state of Washington.The National Park Service in the United States will mark its one hundredth ann

32、iversary in 2016. As it nears its second century, the Park Service plans to increase its educational programs for students and teachers.The plans include transportation support for one hundred thousand students each year to visit national parks to learn about nature and history. Yellowstone is belie

33、ved to have been the world's first national park when it was established in 1872. Other students will get a chance to see parks in faraway places through Skype and other online programs.The National Park Service also works with partners to provide education. One of its partners is a nonprofit or

34、ganization called Nature Bridge. Nature Bridge is celebrating its fortieth anniversary and says one million young people have taken part in its programs. The organization works with students from kindergarten through twelfth grade and uses national parks as its classrooms. It provides field science

35、programs at Yosemite National Park and four other locations in California and the northwestern state of Washington.Now, Nature Bridge is launching an East Coast center with a four-million-dollar grant from Google. The program will begin in April at the Prince W川iam Forest Park in Virginia. Students

36、stay for three to five days inNatureBridge programs. The activities are aimed at developing their science skills. For example, they learn about different soils and study water quality under a microscope.Jason Morris is executive vice president of Nature Bridge. He says when they are not sleeping, ea

37、ting or in a laboratory, the students spend their time outdoors. Julia Washburn is associate director of education and interpretation for the National Park Service. She says in a time of budget cuts, the agency has to find ways to still meet its goals. Ms.Washburn says one of the most important serv

38、ices that the Park Service provides every day is nature interpretation.Park rangers 公园管理员）try to make visiting the outdoors more meaningful. Interpretation is a form of informal education. Essentially, it is a word that we use for the people in parks that explain the park or help orientd!定方向）you. So

39、 park rangers are interpreters. They orient you to the place you are in and help you make connections, emotional and intellectual connections, with the place.New research shows that overweight or even mildly obese people have a lower risk of early death than people considered to be normal weight. Re

40、searchers examined the results of 97 studies. Most of the studies were less than 10years old. They included almost three million adults from around the world, including the United States, Canada, China, Taiwan, Brazil, India and Mexico.The researchers work at the National Center for Health Statistic

41、s, part of the United States Centers for Disease Control and Prevention.They found that people who are considered overweight or slightly obese were five to six percent less likely to die from all causes than people of normal weight. People with higher obesity ratings, however, had almost a 30 percen

42、t greater risk of death compared to normal-weight individuals.Katherine Flegal was the lead author of the study. She says she was not surprised that overweight people would not have a higher risk of death.“Because we'd actually already read a lot of this literature and realized it was likely that mortality rates for overweight would be at least not higher than normal weight. I guess I was a little bit surprised that it was definitelylower. And I