公共英语五级真题2010年12月及答案解析.doc
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1、公共英语五级真题 2010 年 12 月及答案解析(总分:55.00,做题时间:90 分钟)一、BSection Liste(总题数:0,分数:0.00)二、BSection Use o(总题数:1,分数:20.00)Read the following text and fill each of the numbered spaces with one suitable word. Write your answers on ANSWER SHEET 1.Between 1852, when U U 1 /U /Uwas first established that Mount Everes
2、t was the highest mountain on earth, and 1953, when Edmund Hillary, and Tenzing Norgay finally reached the peaks summit, it was every mountaineers dream to become the first person standing on the worlds U U 2 /U /Upoint. And George Mallory was one of the most tenacious early contenders.Mallory was i
3、ntroduced U U 3 /U /Urock climbing while studying at Winchester College. U U 4 /U /Ucompleted his studies, he settled into a career U U 5 /U /Ua teacher at Charterhouse School, and continued to pursue his passion U U 6 /U /Uclimbing in his spare time.Mallorys U U 7 /U /Utrip to Everest was a reconna
4、issance mission in 1921 U U 8 /U /Uaimed to produce the first accurate maps of the region. Two U U 9 /U /Uvisits to the mountain followed. Then, on 8 June 1924, U U 10 /U /Uhis third attempt to reach the summit, Mallory and his partner, Andrew Irvine, disappeared.Several expeditions subsequently att
5、empted to find the pair, and Mallorys U U 11 /U /Uwas finally discovered in May, 1999, at 8,169 metres, 600 metres U U 12 /U /Uthe summit, U U 13 /U /Uwith various items of equipment, including handwritten letters to his wife, a pocket knife, an oxygen bottle and his goggles, U U 14 /U /Uwere later
6、donated to the Royal Geographical Society U U 15 /U /UMallorys family.There is still considerable debate as to U U 16 /U /UMallory reached Everests summit. The U U 17 /U /Uthat his goggles were found in his pocket has led some to suggest that he was on his way down the mountain U U 18 /U /Uhe fell.
7、Had he been ascending in daylight, he would have been wearing the goggles to U U 19 /U /Usnow-blindness, and given what is known of the pairs climbing schedule, if it were U U 20 /U /Uwhen they fell, they must have been on their way back down.(分数:20.00)填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1
8、:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_三、BSection Readi(总题数:0,分数:0.00)四、BPart A/B(总题数:0,分数:0.00)五、BText 1/B(总题数:1,分数:5.00)Officials in Tampa Florida, got a surprise recently when a local firm building the states first ethanol * -production factor
9、y put in a request for 400,000 gallons a day of city water. The request by US Envirofuels would make the facility one of the citys top ten water consumers overnight, and the company plans to double its size. Florida is suffering from a prolonged drought. Rivers and lakes are at record lows and resid
10、ents wonder where the extra water will come from.They are not alone. A backlash against the federally financed biofuels boom is growing around the country, and “water could be the Achilles heel“ of ethanol, said a report by the Minne-apolis-based Institute for Agriculture and Trade Policy.The number
11、 of ethanol factories has almost tripled in the past eight years from 50 to about 140. A further 60 or so are under construction. In 2007, President George Bush signed legislation requiting a fivefold increase in biofuels production, to 36 billion gallons by 2022.This is controversial for several re
12、asons. There are doubts about how green ethanol really is (some say the production process uses almost as much energy as it produces). Some argue that using farmland for ethanol pushes up food prices internationally (world wheat prices rose 25% recently, perhaps as a side-effect of Americas ethanol
13、programme). But one of the least-known but biggest worries is ethanols extravagant use of water.A typical ethanol factory producing 50m gallons of biofuels a year needs about 500 gallons of water a minute. Most of that goes into the boiling and cooling process, which is similar to making beer. Some
14、water is lost through evaporation in the cooling tower and in waste discharge. All this is putting a heavy burden on aquifers in some corn-growing areas.Residents went to court in Missouri to halt a $165m facility being built by Gulfstream Bioflex Energy LLC which was projected to draw 1.3m gallons
15、of water every day from the Ozark aquifer. Projects are being challenged in Minnesota, Iowa, Nebraska, Kansas and in central Illinois, where eight ethanol facilities are situated over the Mahomet aquifer. Demand for corn is such that more land is also being ploughed up in drier regions of the Great
16、Plains states to the west of the corn belt, where irrigation is required, increasing water demand further.The good news is that ethanol plants are becoming more efficient. They now use about half as much water per gallon of ethanol as they did a decade ago. New technology might be able to halve the
17、amount of water again, says Mike Fatigati, vice president of Delta-T Corp, a Virginia company which has designed a system that does not discharge any waste water. But others are sceptical. “There are things you can close loop (i. e. recycle efficiently) and things you cant,“ says Paul Greene, a seni
18、or director for biofuels with Siemens Water Technologies, designers of the water-purification technology used in ethanol factories. Perhaps ethanol just isnt as bio-friendly as it looks.* ethanol=alcohol fuel(分数:5.00)(1).US Envirofuels A.is a local company which plans to double its size. B.is one of
19、 Tampas top ten water consumers. C.is responsible for Tampas water shortage. D.is going to become the largest fuel supplier in Tampa.(分数:1.00)A.B.C.D.(2).What does the word “backlash“(line 1, para. 2) mean? A.A quick backward movement. B.A strong backup action. C.A powerful counterattack. D.A strong
20、 negative reaction.(分数:1.00)A.B.C.D.(3).What have most people failed to realize about biofuels? A.The huge consumption of wheat. B.The huge consumption of water. C.The amount of waste discharged. D.The amount of energy consumed.(分数:1.00)A.B.C.D.(4).Which of the following statements is true? A.A biof
21、uel factory in Missouri was demanded to reduce its water use. B.A big biofuel factory is under construction in Missouri. C.The ethanol plants face the challenge of farmland shortage. D.The ethanol plants are challenged to move to other regions.(分数:1.00)A.B.C.D.(5).What is the authors attitude toward
22、s biofuels? A.Optimistic. B.Neutral. C.Encouraging. D.Doubtful.(分数:1.00)A.B.C.D.六、BText 2/B(总题数:1,分数:5.00)In popular discussions of emissions-rights trading systems, it is common to mistake the smokestacks for the trees. For example, the wealthy oil enclave of Abu Dhabi brags that it has planted mor
23、e than 130 million treeseach of which does its duty in absorbing carbon dioxide from the atmosphere. However, this artificial forest in the desert also consumes huge quantities of irrigation water produced, or recycled, from expensive desalination plants. The trees may allow its leaders to wear a ha
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