點擊查看：2016年6月大學(xué)英語四級考試模擬試卷匯總

　　Part I Writing(30 minutes)

　　Directions: For this part, you are allowed 30 minutes to write a composition on the topic Choosing an Occupation. You should write at least 120 words following the outline given below in Chinese:

　　Choosing an Occupation

　　1. 選擇職業(yè)是一個人要面對的眾多難題之一。

　　2. 需要花時間去選擇職業(yè)。

　　3. 選擇職業(yè)時可以向多人尋求建議和幫助。

　　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 question on Answer Sheet 1.For questions 1-7, markY (for YES)if the statement agrees with the information given in the 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.

　　For questions 8-10, complete the sentences with the information given in the passage.

　　Will We Run Out of Water?

　　Picture a "ghost ship" sinking into the sand, left to rot on dry land by a receding sea. Then imagine dust storms sweeping up toxic pesticides and chemical fertilizers from the dry seabed and spewing them across towns and villages.

　　Seem like a scene from a movie about the end of the world? For people living near the Aral Sea in Central Asia, it's all too real. Thirty years ago, government planners diverted the rivers that flow into the sea in order to irrigate(provide water for)farmland. As a result, the sea has shrunk to half its original size, stranding ships on dry land. The seawater has tripled in salt content and become polluted, killing all 24 native species of fish.

　　Similar large scale efforts to redirect water in other parts of the world have also ended in ecological crisis, according to numerous environmental groups. But many countries continue to build massive dams and irrigation systems, even though such projects can create more problems than they fix. Why? People in many parts of the world are desperate for water, and more people will need more water in the next century.

　　"Growing populations will worsen problems with water," says Peter H. Gleick, an environmental scientist at the Pacific Institute for studies in Development, Environment, and Security, a research organization in California. He fears that by the year 2025, as many as one�瞭hird of the world's projected 8.3 billion people will suffer from water shortages.

　　Where Water Goes

　　Only 2.5 percent of all water on Earth is freshwater, water suitable for drinking and growing food, says Sandra Postel, director of the Global Water Policy Project in Amherst, Mass. Two�瞭hirds of this freshwater is locked in glaciers and ice caps. In fact, only a tiny percentage of freshwater is part of the water cycle, in which water evaporates and rises into the atmosphere, then condenses and falls back to Earth as precipitation(rain or snow).

　　Some precipitation runs off land to lakes and oceans, and some becomes groundwater, water that seeps into the earth. Much of this renewable freshwater ends up in remote places like the Amazon river basin in Brazil, where few people live. In fact, the world's population has access to only 12,500 cubic kilometers of freshwater-about the amount of water in Lake Superior. And people use half of this amount already. "If water demand continues to climb rapidly," says Postel, "there will be severe shortages and damage to the aquatic environment."

　　Close to Home

　　Water woes may seem remote to people living in rich countries like the United States. But Americans could face serious water shortages, too especially in areas that rely on groundwater. Groundwater accumulates in aquifers, layers of sand and gravel that lie between soil and bedrock. (For every liter of surface water, more than 90 liters are hidden underground).Although the United States has large aquifers, farmers, ranchers, and cities are tapping many of them for water faster than nature can replenish it. In northwest Texas, for example, over pumping has shrunk groundwater supplies by 25 percent, according to Postel.

　　Americans may face even more urgent problems from pollution. Drinking water in the United States is generally safe and meets high standards. Nevertheless, one in five Americans every day unknowingly drinks tap water contaminated with bacteria and chemical wastes, according to the Environmental Protection Agency. In Milwaukee, 400,000 people fell ill in 1993 after drinking tap water tainted with cryptosporidium, a microbe that causes fever, diarrhea and vomiting.

　　The Source

　　Where so contaminants come from? In developing countries, people dump raw sewage into the same streams and rivers from which they draw water for drinking and cooking; about 250 million people a year get sick from water borne diseases.

　　In developed countries, manufacturers use 100,000 chemical compounds to make a wide range of products. Toxic chemicals pollute water when released untreated into rivers and lakes. (Certain compounds, such as polychlorinated biphenyls, or PCBs, have been banned in the United States.)

　　But almost everyone contributes to water pollution. People often pour household cleaners, car antifreeze, and paint thinners down the drain; All of these contain hazardous chemicals. Scientists studying water in the San Francisco Bay reported in 1996 that 70 percent of the pollutants could be traced to household waste.

　　Farmers have been criticized for overusing herbicides and pesticides, chemicals that kill weeds and insects but insects but that pollutes water as well. Farmers also use nitrates, nitrogen�瞨ich fertilizer that helps plants grow but that can wreak havoc on the environment. Nitrates are swept away by surface runoff to lakes and seas. Too many nitrates "over enrich" these bodies of water, encouraging the buildup of algae, or microscopic plants that live on the surface of the water. Algae deprive the water of oxygen that fish need to survive, at times choking off life in an entire body of water.

　　What's the Solution?

　　Water expert Gleick advocates conservation and local solutions to water�瞨elated problems; governments, for instance, would be better off building small�瞫cale dams rather than huge and disruptive projects like the one that ruined the Aral Sea.

　　"More than 1 billion people worldwide don't have access to basic clean drinking water," says Gleick. "There has to be a strong push on the part of everyonegovernments and ordinary people-to make sure we have a resource so fundamental to life."

　　1. That the huge water projects have diverted the rivers causes the Aral Sea to shrink.

　　2. The construction of massive dams and irrigation projects does more good than harm.

　　3. The chief causes of water shortage are population growth and water pollution.

　　4. The problems Americans face concerning water are ground water shrinkage and tap water pollution.

　　5. According to the passage all water pollutants come from household waste.

　　6. The people living in the United States will not be faced with water shortages.

　　7. Water expert Gleick has come up with the best solution to water related problems.

　　1.[Y][N][NG]2.[Y][N][NG]3.[Y][N][NG]4.[Y][N][NG]

　　5.[Y][N][NG]6.[Y][N][NG]7.[Y][N][NG]

　　8. According to Peter H. Gleick, by the year 2025, as many as of the world's people will suffer from water shortages.

　　9.Two thirds of the freshwater on Earth is locked in.

　　10.In developed countries, before toxic chemicals are released into rivers and lakes, they should be treated in order to avoid.

　　Part Ⅳ Reading Comprehension(Reading in Depth)(25 minutes)

　　Section 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. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.

　　Questions 47 to 56 are based on the following passage.

　　Shopping habits in the United States have changed greatly in the last quarter of the 20th century. 47 in the 1900s most American towns and cities had a Main Street. Main Street was always the heart of a town. This street was lined on the both sides with many 48 businesses. Here, shoppers walked into stores to look at all sorts of merchandise: clothing, furniture, hardware, groceries. In addition, some shops offered 49 . There shops included drugstores, restaurants, shoe repair stores, and barber or hairdressing shops. But in the 1950s, a change began to 50 place. Too many automobiles had crowded into Main Street while too few parking places were 51 to shoppers. Because the streets were crowded, merchants began to look with interest at the open spaces outside the city limits. Open space is what their car driving customers needed. And open space is what they got when the first shopping centre was built. Shopping centers, or rather malls, 52 as a collection of small new stores away from crowded city centers. 53 by hundreds of free parking space, customers were drawn away from 54 areas to outlying malls. And the growing 55 of shopping centers led in turn to the building of bigger and better stocked stores. By the late 1970s, many shopping malls had almost developed into small cities themselves. In addition to providing the 56 of the stop shopping, malls were transformed into landscaped parks, with benches, fountains, and outdoor entertainment.

　　[A]designed

　　[B]take

　　[C]Early

　　[D]Attracted

　　[E] though

　　[F]convenience

　　[G]services

　　[H]fame

　　[I]various

　　[J] popularity

　　[K]cosmetics

　　[L]started

　　[M]downtown

　　[N]available

　　[O]cheapness

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