[外语类试卷]大学英语四级模拟试卷435及答案与解析.doc
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1、大学英语四级模拟试卷 435及答案与解析 一、 Part I Writing (30 minutes) 1 For this part, you are allowed 30 minutes to write a short essay entitled On College Students Renting Houses Outside Campus. You should write at least 120 words following the outline given below: 1. 眼下大学生在外租房居住的现象十分普遍 2. 对比分析在外租房居住和住在学校宿舍的利弊 3. 我
2、的看法 二、 Part II Reading Comprehension (Skimming and Scanning) (15 minutes) Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions attached to the passage. For questions 1-7, mark: Y (for YES) if the statement agrees with the information given in the
3、 passage; N (for NO) if the statement contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 1 Earthquake Can Scientists Predict Killer Earthquakes? The date was November 23, 1980 People near Naples, in Southern Italy, felt the earth roll
4、 and shake. Earthquake! Suddenly buildings came tumbling down. Cracks appeared in the earth Within minutes, entire towns were destroyed Thousands of people were dead Thousands more were injured As rescuers searched through the rubble, many people must have wondered, if only the victims had known ahe
5、ad of time, many lives could have been saved Actually, an Italian scientist did predict that such a quake would happen In 1977 Dr M Caputo of the Universite Degiles Studi in Rome warned that a large quake would soon strike the east of Naples Unfortunately, he couldnt predict the exact time and date
6、of the quake Dr Caputo made his general prediction after talking with scientists at 54 earthquake-monitoring stations throughout Italy He learned that many earthquakes had recently rocked different areas around Naples But none had occurred in one particular spot east of Naples for many years Dr. Cap
7、uto felt that the area was long overdue for a large quake And it was Earthquake Strikes in Gap The quake occurred in a region that Dr.Caputo called a seismic gap A seismic gap is an area in an active earthquake region where no earthquake or seismic activity has been recorded in a long time Seismic g
8、aps are located where two large plates in the earth have become stuck When the plates slide past each other, they sometimes became locked in place A similar thing happens when you make a running leap on a sidewalk while wearing sneakers When you 1and on both feet, the sneakers grab onto rough surfac
9、e Friction tends to hold your feet back while the rest of your body goes forward You may end up falling flat on your face In the case of plates, however, the uneven surfaces between the plates cause the plates to remain locked in place for years Huge pressure builds up behind each plate Periodically
10、, a shudder, or tremor, is recorded as some of this energy is released Finally, after about 50 years, rock in the seismic gap either suddenly breaks or moves under the great stress This sudden release of energy sends shock waves through the rock layers above The ground shakes, sidewalks crack, and b
11、uildings tumble A mighty quake has struck Gaps Used to Predict Quakes Many geologists have used what is called the seismic gap technique to accurately predict earthquakes The technique was first developed by Soviet earthquake expert Dr.V.Fodotov during his studies of ancient and recent Japanese eart
12、hquakes Dr.Fodotov was marking the location,size, and date of all known quakes in Japan when he noticed a striking pattern All major earthquakes were found to occur in only a few isolated spots in Japan Each of these spots, he noted, experienced a major quake only once every 50 to 60 years Dr.Fodoto
13、v concluded that spots that hadnt had a quake in more than 50 years were “ripe” for a quake The Russian scientist named these locations seismic gaps In the past several years, geologists from other countries have found seismic gaps in other parts of the world After making detailed studies of past qu
14、akes in these regions, the geologists were able to make an accurate prediction of when a quake would occur How Do Animals Know When an Earthquake Is Coming? Scientists who try to predict earthquakes have gotten some new helpers recently-animals Thats right, animals Scientists have begun to catch on
15、to what farmers have known for thousands of years Animals often seem to know in advance that an earthquake is coming, and they show their fear by acting in strange ways Before a Chinese quake in1975, snakes awoke from their winter sleep early only to freeze to death in the cold air Cows broke their
16、halters and tried to escape Chickens refused to enter their coop All of this unusual behavior, as well as physical changes in the earth, alerted Chinese scientists to the coming quake. They moved people away from the danger zone and saved thousands of lives One task for scientists today is to learn
17、exactly which types of animal behavior predict quakes. Its not an easy job First of all not every animal reacts to the danger of an earthquake Just before a California quake in 1977, for example, an Arabian stallion became very nervous and tried to break out of his stall The horse next to him, howev
18、er, remained perfectly calm Its also difficult at times to tell the difference between normal animal restlessness and “earthquake nerves” A zookeeper once called earthquake researchers to say that his cougar had been acting strangely It turned out that the cat had an upset stomach A second task for
19、scientists is to find out exactly what kind of warnings the animals receive They know that animalssense far more of the world than humans do Many animals can see, hear, and smell things that people do not even notice Some can detect tiny changes in air pressure, gravity, or the magnetism of earth Th
20、is extra sense probably helps animals predict quakes A good example of this occurred with a group of dogs They were penned up in an area that was being shaken by a series of tiny earthquakes Several small quakes often come before or after a large one Before each quake a low booming sound was heard E
21、ach boom caused the dogs to bark wildly Then the dogs began to bark during a silent period A scientist who was recording tile quakes looked at his machine It was acting as though there was a loud noise too The scientist realized that the dogs had reacted to a booming noise They also sensed the tiny
22、quake that followed it The machine recorded both, though humans felt and heard nothing In this case there was a machine to monitor what the dogs were sensing Many times,however, our machines record nothing out of the ordinary, even though animals know a quake is coming The animals might be sensing s
23、omething we do measure but do not recognize as a warning Discovering what animals sense, and learning how they know it is a danger signal, is a j ob for future scientists 2 Since_of the earthquake striking east of Naples, people there suffered heavy loss in the destruction ( A) no prediction had bee
24、n made ( B) no correct prediction had been made ( C) no one had predicted the precise date ( D) no one had cared about Dr.Caputos prediction 3 A seismic gap is_ ( A) a region where no seismic activity has ever been recorded ( B) an area where no large earthquake has ever been detected ( C) a deep an
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- 外语类 试卷 大学 英语四 模拟 435 答案 解析 DOC
