[自考类试卷]自考英语(二)模拟试卷45及答案与解析.doc
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1、自考英语(二)模拟试卷 45 及答案与解析一、阅读判断0 Stomach UlcerStomach ulcers(溃疡) are the cause of severe pain for many people. Doctors have been able to help lessen the pain of ulcers. They could not cure them. Now doctors have discovered a cause of ulcers. This means they may have found a way to cure people who suffer
2、 from the stomach pain. Studies show that ten percent of the population will develop an ulcer at some time in their life. So a possible cure is good news for many people.Ulcers are wounds in the stomach that are similar to small cuts or tears. These wounds can harm the tissue (生物组织) in the stomach,
3、the pipe that carries the food to the stomach or parts of the small intestines (肠). Fluids (液体)in the stomach then increase the pain of an ulcer. How does a person know he or she has an ulcer? Doctors say most people with ulcers feel a burning pain in their chest or stomach. This pain often is calle
4、d heart-burn. It usually happens before eating or during the night. It causes some people to lose their desire to eat, or they are unable to keep food in their stomachs.Doctors believed that ulcers were caused by unusually strong stomach fluids, which damaged stomach tissue. Now they have discovered
5、 that most ulcers are caused by a bacterial (细菌的 ) organism (有机体) called Hillico Bactor Pilorie or H Pilorie. H Pilorie bacteria are what make stomach produce extra stomach fluid. Doctors found that they can kill the bacteria with medicines called antibiotics(抗生素). Health experts say the discovery o
6、f a cure for ulcers can save thousands of millions of dollars in medical costs. They also believe curing ulccrs will reduce the number of people who develop stomach cancer. The number of people with stomach cancer is very high in Japan, Southeast Asia and parts of Africa.Doctors say a person is more
7、 likely to get an ulcer if someone in his or her family has had one. In fact a person with the family history of ulcers is three times more likely to get one than other people. There are ways people can protect themselves from developing an ulcer. Doctors say it is more important to reduce the amoun
8、t of strong fluids in the stomach. To do this, doctors say, people should not smoke cigarettes or drink alcohol. And they say people should reduce tension in their lives.1 Doctors have been able to reduce the pain caused by stomach ulcers.(A)True(B) False(C) Not Given2 Now doctors can successfully c
9、ure stomach ulcers.(A)True(B) False(C) Not Given3 Some people are likely to suffer from the stomach pain at some time in their life.(A)True(B) False(C) Not Given4 People with ulcers usually feel a burning pain in their chest or stomach when they are eating.(A)True(B) False(C) Not Given5 There has be
10、en a change in doctors understanding of the cause of stomach ulcers.(A)True(B) False(C) Not Given6 Stomach ulcer can lead to stomach cancer.(A)True(B) False(C) Not Given7 People who eat a lot of spicy food are also easy to have stomach ulcers.(A)True(B) False(C) Not Given8 H Pilorie bacteria cannot
11、be killed.(A)True(B) False(C) Not Given9 If a persons family has had an ulcer, he is three times more likely to get ulcer than people without a family history of ulcers.(A)True(B) False(C) Not Given10 Tension in life can increase the likelihood of getting a stomach ulcer.(A)True(B) False(C) Not Give
12、n二、阅读选择10 TelevisionTelevisionthe most pervasive and persuasive of modern technologies, marked by rapid change and growthis moving into a new era, an era of extraordinary sophistication and versatility, which promises to reshape our lives and our world. It is an electronic revolution of sorts, made
13、possible by the marriage of television and computer technologies.The word “television“, derived from its Greek (tele: distant) and Latin (vision: sight) roots, can literally be interpreted as sight from a distance. Very simply put, it works in this way: through a sophisticated system of electronics,
14、 television provides the capability of converting an image (focused on a special photoconductive plate within a camera) into electronic impulses, which can be sent through a wire or cable. These impulses, when fed into a receiver (television set),can then be electronically reconstituted into that sa
15、me image.Television is more than just an electronic system, however. It is a means of expression, as well as a vehicle for communication, and as such becomes a powerful tool for reaching other human beings.The field of television can be divided into two categories determined by its means of transmis
16、sion. First, there is broadcast television, which reaches the masses through broad-based airwave transmission of television signals. Second, there is non-broadcast television, which provides for the needs of individuals or specific interest groups through controlled transmission techniques.Tradition
17、ally, television has been a medium of the masses. We are most familiar with broadcast television because it has been with us for about thirty-seven years in a form similar to what exists today. During those years, it has been controlled, for the most part, by the broadcast networks, ABC, NBC, and CB
18、S, who have been the major purveyors of news, information, and entertainment. These giants of broadcasting have actually shaped not only television but our perception of it as well. We have come to look upon the picture tube as a source of entertainment, placing our role in this dynamic medium as th
19、e passive viewer. 11 What is the literal meaning of the word “television“?(A)Medium of the masses.(B) Sight from a distance.(C) Airwave transmission.(D)Vehicle for communication.12 What field of television is intended for specific groups?(A)Broad-based.(B) Reconstituted.(C) Traditional.(D)Non-broadc
20、ast. 13 According to the passage, how many major networks are there?(A)Two.(B) Three.(C) Four.(D)Five.14 Which of the following is NOT mentioned in the passage as a function of electronics in television transmissions?(A)The conversion of an image into electronic impulses.(B) The sending of impulses
21、through a wire cable.(C) The changing of one image into another image.(D)The feeding of impulses into a receiver.15 Which of the following statements about the relationship between television and its viewers can best be inferred from the passage?(A)Viewers do not take an active role in watching tele
22、vision.(B) Viewers would prefer increased news coverage.(C) Viewers like to use television to reach other human beings.(D)Viewers have grown tired of television.三、概括段落大意和补全句子15 Volts From the Sky Lightning has caused awe and wonder since old times. Although Benjamin Franklin demonstrated lightning a
23、s enormous electrical discharge more than 200 years ago, many puzzles still surround this powerful phenomenon.Lightning is generated when electrical charges separate in rain clouds, though processes are still not fully understood. Typically, positive charges build at the cloud top, while the bottom
24、becomes negatively charged. In most instances of cloud-to-ground lightning, the negatively charged lower portion of the cloud repels negatively charged particles on the grounds surfaces, making it become positively charged. The positive charge on the ground gathers at elevated points. A flow of elec
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