[外语类试卷]大学英语四级模拟试卷738及答案与解析.doc
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1、大学英语四级模拟试卷 738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: Hobbies. You should write at least 120 words and you should base your composition on the outline given in Chinese below: 1业余爱好的意义 2选择业余爱好的注意事项 3业余爱好的形式 二、 Part II Read
2、ing 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 NO
3、) if the statement contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 1 What Are Tropical Storms? Severe storms spawned in the tropics are known by different names in different parts of the world: hurricanes in the Atlantic and east P
4、acific and typhoons in the northwest Pacific and cyclones in the southwest Pacific and Indian Ocean. These storms originate over tropical waters, close to the equator. If the atmosphere is calm and the water is warmer than about 27C, evaporation forces large amounts of moisture into the air, creatin
5、g a low pressure system. When this water vapour condenses, it releases heat that powers the circular winds that characterize these storms. Rainfall in the developing storm releases more heat, triggering a convection process that pulls more moisture-laden air up through the centre of the system. The
6、storm grows via this feedback mechanism. The strongest winds are found immediately outside the centre, or “eye,“ of the hurricane at ground level. Every one of these systems begins as a tropical depression - a system of thunder storms with an overall circular motion and maximum sustained winds less
7、than 62 km/h. When a storm becomes severe enough and the winds pick up to more than 62 km/h, it is designated a tropical storm, When the winds reach 119 km/h, the system is called a hurricane, typhoon or cyclone. An average of 10 tropical storms develop over the Atlantic Ocean each year, of which ab
8、out six become severe enough to be called hurricanes. Besides strong winds and heavy rain, these hurricanes also create a “storm surge,“ a massive wave beneath the centre of the storm. In the eye of the hurricane, air is sucked upward faster than it can rush in at the bottom. This lowers the atmosph
9、eric pressure under the eye of the storm; as a result, the eye tries to pull at the ocean itself, creating a bulge of water as much as six metres high that moves together with the storm. When is the hurricane season? Hurricane season officially runs from June 1 to November 30, but the most intense s
10、torms mainly occur between mid-August and mid-October. How are hurricanes classified? Tropical storms that get strong enough to be classified as hurricanes are categorized by the intensity of their wind speeds using the Saffir-Simpson scale. Only three Category 5 hurricanes have made landfall in the
11、 U.S. in the past century one that struck the Florida Keys in 1935, Hurricane Camille in 1969, and Hurricane Andrew in 1992. How are tropical storms named? A tropical storm is given a name if its winds reach a speed of 62 kilometres per hour. An international committee has drawn up a list of 126 nam
12、es-half male and half female which are repeated after a six-year cycle. However, if a hurricane causes extensive dam age, its name is retired from use. So far, more than 50 names have been retired, from Hazel in 1954 to Juan in 2003. Memorable hurricanes In August and September 1992, Hurricane Andre
13、w wrought havoc across the Caribbean and Florida. Andrew was an unusual storm-after brewing for several days at low latitudes, it weakened and nearly vanished about 600 km east of Puerto Rico. But the storm regained its strength and moved northward with devastating results. Andrew left 17,000 people
14、 homeless in Florida alone and destroyed or badly damaged 85,000 homes. The storm caused a record $ 26. S billion US in property damage. In 2002 Andrew, initially classified a Force 4, was upgraded to have actually been a Force 5 storm. In November 1998, Hurricane Mitch tore through Central America,
15、 killing as many as 10,000 people and leaving two million homeless in Nicaragua and Honduras. The storms 300 km/h winds and heavy rains caused more than $ 3 billion US in damage more than half the combined gross domestic product of those two countries. Mitch also unleashed deadly landslides, and cau
16、sed the worst flooding in the region in 200 years. In the storms wake, with roads and infrastructure wiped out, thousands of people developed illnesses such as dengue fever, cholera and malaria. Hurricane Hugo swept across the Caribbean and the southeast U.S. in September 1989, leaving a 3,700-kilom
17、etre-long trail of destruction from Guadeloupe to the Carolinas. The storm killed at. least 28 people in the Caribbean, left up to 80,000 homeless and caused $ 2 billion US in damage. In the U. S. , it killed another 11 people and caused more than $ 750 million in damage. The storm sent giant waves
18、crashing onto the U. S. Eastern Seaboard, with a wall of water some five metres in height washing over Charleston, S.C. In September 1996, Cape Breton Island, Nova Scotia, Canada, felt the wrath of Hurricane Hortense. The storm brought 120 km/h winds and caused $ 3 million in damages, mostly due to
19、flooding, wind damage and power outages. For Ontarians old enough to remember it, Hurricane Hazel was the storm of a life time-and one of the few to inflict significant damage in central Canada. Hurricane Hazel formed in early October 1954 and crossed the Caribbean and the eastern U. S. before enter
20、ing southern Ontario. The storm left as many as 1,000 dead in Haiti, six more in the Bahamas, another 95 in the U.S. and 81 in the Toronto region Tropical storms and global climate trends While tropical storms seem to follow certain natural cycles, scientists are concerned about the effects of globa
21、l warming and tong-term climate change. On Sept. 15, 1999, the United Nations issued a report predicting that global warming will cause more frequent and more severe tropical storms, floods and tornadoes in the coming century. “We do know that hurricane intensity is directly correlated to how warm t
22、he ocean waters are, says Petersen “And if global warming continues to occur, and this results in warmer water tem peratures, then well see an undeniable signal of stronger hurricanes.“ 2 The passage gives an overview of hurricanes and their history. ( A) Y ( B) N ( C) NG 3 Hurricanes in the Atlanti
23、c are different from typhoons and cyclones in Asia. ( A) Y ( B) N ( C) NG 4 Most tropical storms do not become hurricanes. ( A) Y ( B) N ( C) NG 5 There will not be another Hurricane Andrew in the foreseeable future. ( A) Y ( B) N ( C) NG 6 Hurricane Miteh was a Force 5 storm that hit the United Sta
24、tes. ( A) Y ( B) N ( C) NG 7 Hurricane Hugo was weaker when it hit the United States than when it hit the Caribbean islands. ( A) Y ( B) N ( C) NG 8 The United Nations believes that the only way to prevent worse hurricanes is to deal with global warming. ( A) Y ( B) N ( C) NG 9 A _ is one whereby wa
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- 外语类 试卷 大学 英语四 模拟 738 答案 解析 DOC
