[外语类试卷]大学英语四级模拟试卷156及答案与解析.doc
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1、大学英语四级模拟试卷 156及答案与解析 一、 Part I Writing (30 minutes) 1 For this part, you are allowed 30 minutes to write a composition on the topic: One Way to Solve the Problem. You should write at least 120 words according to the outline given below in Chinese: 1机 动车被看作是空气污染的首要原因 2提出解决这一问题的方法 3并说明原因 二、 Part II Re
2、ading 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 passage; N (for
3、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 The World in a Glass: Six Drinks That Changed History Tom Standage urges drinkers to savor the history of their favorite beverages along with the taste. The aut
4、hor of A History of the World in 6 Glasses (Walker I enjoy them all. It must be the dement of romance that【 B3】 _ to me. There is no romance in a car on a motorway a box of metal and rubber on a strip of【 B4】 _ or in flying through the air in a pressurized tube from one【 B5】 _ plastic and glass airp
5、ort to another. But trains are different. You can walk around, look at the【 B6】_ , observe your fellow【 B7】 _ . In a plane all you can see are the clouds and the backs of other peoples heads. Yes, traveling by train is still an【 B8】 _ , even in England.【 B9】 _ and understand the incomprehensible mes
6、sages coming over the loudspeaker systems. 【 B10】 _ . Abroad, of come, its even more exciting, particularly in those countries which forget to put names on their railway stations. 【 B11】 _ . 31 【 B1】 32 【 B2】 33 【 B3】 34 【 B4】 35 【 B5】 36 【 B6】 37 【 B7】 38 【 B8】 39 【 B9】 40 【 B10】 41 【 B11】 Section
7、A Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. P
8、lease mark the corresponding letter for each item with a single line through the center. You may not use any of the words in the bank more than once. 41 Perhaps like most Americans you have some extra pounds to 【 S1】 _ . You may even have tried a fad diet or two, but found yourself right back where
9、you started. The key to weight loss is regular 【 S2】 _ activity. And surprisingly, you dont have to give up eating or make the gym your second home to see long-term, 【 S3】_ effects. Your body needs a certain amount of energy to maintain basic 【 S4】 _ such as breathing, blood circulation and digestio
10、n. The energy required to keep your organs functioning is referred to as the resting or basal metabolic rate. Any time you are active, 【 S5】 _ energy is required. It is obtained from glycogen and fat stored in the blood, liver, and muscles. The key to losing weight is to draw on the fat rather than
11、on the carbohydrate reserves. Which of the two energy sources you use depends on the intensity and 【 S6】 _ of your activity. The higher the intensity, the more your body will pull from the stored carbohydrates. The lower the intensity, the more your body will 【 S7】 _ on fat as its fuel. Aerobic exer
12、cise is most 【 S8】 _ for weight loss. When you perform aerobic activities you 【 S9】 _ contract large muscle groups such as your legs and arms. Walking, running, rollerblading, swimming, dancing, and jumping jacks are all forms of aerobic activity. Surprisingly, if your aerobic activity is low to mod
13、erately intense and of long duration, you will bum more fat than if you had 【 S10】 _ in a short burst of high-intensity exercise. In short, a brisk 30-minute walk will burn fat while a 100-yard sprint will bum glycogen. A positive B additional C duration D effective E shed F physical G food H functi
14、ons I participated J rely K cut L repeatedly M uses N little O obvious 42 【 S1】 43 【 S2】 44 【 S3】 45 【 S4】 46 【 S5】 47 【 S6】 48 【 S7】 49 【 S8】 50 【 S9】 51 【 S10】 Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each
15、of them there are four choices marked A, B, C and D. You should decide on the best choice. 51 Many of the most damaging and life threatening types of weather-torrential rains, severe thunderstorms, and tornadoes-begin quickly, strike suddenly, and disappear rapidly, destroying small regions while le
16、aving neighboring areas untouched. Such event as a tornado struck the northeastern section of Edmonton, Alberta, in July 19 Total damages from the tornado exceeded $250 million, the highest ever for any Canadian storm. Conventional computer models Of the atmosphere have limited value in predicting s
17、hort lived local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to study carefully the subtle atmospheric changes that come before these storms. In most nations, for example, weather-balloon observations are taken just once e
18、very twelve hours at locations typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events. Until recently, the observation intensive app
19、roach needed for accurate, very short-range forecasts, or “Nowcasts“, was not feasible. The cost of equipping and operating many thousands of conventional weather stations was extremely high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network
20、were hard to overcome Fortunately, scientific and technological advances have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observation over large regions at a relatively low cost. Communications sa
21、tellites can transmit data around the world cheaply and instantaneously, and modem computers can quickly compile and analyze this large volume of weather information. Meteorologists (气象学者 ) and computer scientists now work together to design computer programs and video equipment capable of transform
22、ing raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly. As meteorologists have begun using these new technologies in weather forecasting offices, Nowcasting is becoming a reality. 52 It can be inferred from the passage that the value of
23、 damages from torrential rains, severe thunderstorms and tornadoes is _. 53 Why do conventional models of the atmosphere fail to predict such a short-lived tornado? 54 It can be inferred from the passage that conventional forecasting models are now mostly used for _. 55 What does “Nowcasts“ mean acc
24、ording to the passage? 56 According to the passage, what makes “Nowcasting“ a reality? 56 What makes Americans spend nearly half their food dollars on meals away from home? The answers lie in the way Americans live today. During the first few decades of the twentieth century, canned and other conven
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- 外语类 试卷 大学 英语四 模拟 156 答案 解析 DOC