[外语类试卷]专业英语四级(阅读)模拟试卷118及答案与解析.doc
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1、专业英语四级(阅读)模拟试卷 118及答案与解析 一、 SECTION A In this section there are several passages followed by ten multiple-choice questions. For each question, there are four suggested answers marked A, B, C and D. Choose the one that you think is the best answer. 0 Most earthquakes occur within the upper 15 miles o
2、f the earths surface. But earthquakes can and do occur at all depths to about 460 miles. Their number decreases as the depth increases. At about 460 miles one earthquake occurs only every few years. Near the surface earthquakes may run as high as 100 in a month, but the yearly average does not vary
3、much. In comparison with the total number of earthquakes each year, the number of disastrous earthquakes is very small. The extent of the disaster in an earthquake depends on many factors. If you carefully build a toy house with an Erector set, it will still stand no matter how much you shake the ta
4、ble. But if you build a toy house with a pack of cards, a slight shake of the table will make it fall. An earthquake in Agadir, Morocco, was not strong enough to be recorded on distant instruments, but it completely destroyed the city. Many stronger earthquakes have done comparatively little damage.
5、 If a building is well constructed and built on solid ground, it will resist an earthquake. Most deaths in earthquakes have been due to faulty building construction or poor building sites. A third and very serious factor is panic. When people rush out into narrow streets, more deaths will result. Th
6、e United Nations has played an important part in reducing the damage done by earthquakes. It has sent a team of experts to all countries known to be affected by earthquakes. Working with local geologists and engineers, the experts have studied the nature of the ground and the type of most practical
7、building code for the local area. If followed, these suggestions will make disastrous earthquakes almost a thing of the past. There is one type of earthquake disaster that little can be done about. This is the disaster caused by seismic sea waves, or tsunamis.(These are often called tidal waves, but
8、 the name is incorrect. They have nothing to do with tides.)In certain areas, earthquakes take place beneath the sea. These submarine earthquakes sometimes give rise to seismic sea waves. The waves are not noticeable out at sea because of their long wave length. But when they roll into harbours, the
9、y pile up into walls of water 6 to 60 feet high. The Japanese call them “tsunamis“, meaning “harbour waves“, because they reach a sizable height only in harbours. Tsunamis travel fairly slowly, at speeds up to 500 miles an hour. An adequate warning system is in use to warn all shores likely to be re
10、ached by the waves. But this only enables people to leave the threatened shores for higher ground. There is no way to stop the oncoming wave. 1 Which of the following Can Not be concluded from the passage? ( A) The number of earthquakes is closely related to depth. ( B) Roughly the same number of ea
11、rthquakes occur each year. ( C) Earthquakes are impossible at depths over 460 miles. ( D) Earthquakes are most likely to occur near the surfaces. 2 The United Nations experts are supposed to _. ( A) construct strong buildings ( B) put forward proposals ( C) detect disastrous earthquakes ( D) monitor
12、 earthquakes 3 The significance of the slow speed of tsunamis is that people may _. ( A) notice them out at sea ( B) find ways to stop them ( C) be warned early enough ( D) develop warning systems 3 Cancer of the lung is still the leading cause of cancer death in men and women worldwide, and althoug
13、h its incidence in men may be falling in the UK, in much of the world it is rising in both sexes. The first cigarettes had been rolled by soldiers in the Turkish-Egyptian war more than 90 years before the first of the two world wars that popularized smoking. Between 1938 and 1948 lung cancer increas
14、ed five times faster than other cancers, but these statistics were no match for the impact of Hollywood stars smoking in films. By this time women were smoking almost as much as men. There are two main types of lung cancer, determined by the type of cell involvedsmall cell and non-small cell lung ca
15、ncer. Around 75% of cases are of the non-small cell variety, the standard small cell lung cancers account for 20% and a few rarer types of lung cancer complete the balance. About 90% of all lung cancer cases can be attributed to smoking. The outcome is still not good. The five-year survival rate in
16、those with lung cancer is approximately 15%. Depending on the type of cancer, surgery, radiotherapy or chemotherapy may be used, but if the cancer has not spread, the first line of treatment is usually surgery. If the tumor has spread, either radiotherapy, chemotherapy or both may be used, sometimes
17、 in combination. The choice of treatment will depend on the type of cell forming the cancer and the extent of its growth. Advanced non-small cell cancer is usually treated with chemotherapy and in these cases radiotherapy is used for symptomatic treatment. Likewise in small cell cancer, which has us
18、ually spread beyond the original site at diagnosis so that surgery is unlikely to be used and the mainstay of treatment is chemotherapy and radiation. 4 In the second paragraph, why is the outcome said to be “still not good“? ( A) Because there is still about 90% of all lung cancer cases resulting f
19、rom smoking now. ( B) Because cigarette leads to small cell as well as non-small cell lung cancer. ( C) Because only 15% of lung cancer sufferers can live for 5 years. ( D) A few rarer types of lung cancer are still beyond curability. 5 What is NOT true about the treatment of cancer? ( A) How to tre
20、at patients merely rests on the type of cell forming the cancer. ( B) Radiotherapy can hardly address advanced non-small cell cancer virtually. ( C) Both radiotherapy and chemotherapy can be used to treat small cell cancer. ( D) Surgery is unlikely to be used in the treatment of advanced small cell
21、cancer. 6 The authors attitude towards smoking is _. ( A) pessimistic ( B) worried ( C) positive ( D) impersonal 6 Locusts, which can consume their own weight in food each day, have a large neuron called the locust giant movement detector(LGMD)located behind their eyes. The LGMD releases bursts of e
22、nergy whenever a locust is on a collision course with another locust or a predatory bird. A few years ago Rind and her colleagues studied the activity of the LGMD as locusts watched action scenes from the movie Star Wars. The team found that the LGMD releases more energy when something is coming dir
23、ectly at the locust. These spikes of energy, called action potentials, prompt the locusts to take evasive action. The entire process from motion detection to reaction takes about 45 milliseconds or 45 thousandths of a second. “Locusts, like most insects, can see many more images per second than we d
24、o. This means they can react in time to things that are approaching very rapidly and so make their escape before collision,“ Rind said. The locusts ability to see many more images per second than humans gives them a remarkable view of the world. For humans, it would be like watching everything go by
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