Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.Humans are bringing about another global-scale change in the atmosphere: the increase in what are called greenhouse gases. Like glass in a greenhouse, these gases admit the Sun's light but tend to reflect back downward the heat that is radiated from the ground below, trapping heat in the Earth's atmosphere. This process is known as the greenhouse effect. Carbon dioxide is the most significant of these gases – there is 25 percent more carbon dioxide in the atmosphere today than there was a century ago, the result of our burning coal and fuels derived from oil. Methane, nitrous oxide, and CFCs are greenhouse gases as well.Scientists predict that increases in these gases in the atmosphere will make the Earth a warmer place. They expect a global rise in average temperature somewhere between 1.0 and 3.5 degrees Celsius in the next century. Average temperatures have in fact been rising and the years from 1987 to 1997 were the warmest years on record. Some scientists are reluctant to say that global warming has actually begun because climate naturally varies from year to year and decade to decade, and it takes many years of records to be sure of a fundamental change. There is little disagreement, though, that global warming is looming.Global warming will have different effects in different regions. A warmed world is expected to have more extreme weather, with more rain during wet periods, longer droughts, and more powerful storms. Although the effects of future climate changes are unknown, some predict that exaggerated weather conditions may translate into better agricultural yields in areas such as the western United States, where temperature and rainfall are expected to increase, while dramatic decreases in rainfall may lead to severe droughts and plunging agricultural yields in parts of Africa, for example.Warmer temperatures are expected to partially melt the polar ice caps, leading to a projected sea level rise of 50 centimeters by the year 2050. A sea level rise of this magnitude would flood coastal cities, force people to abandon low-lying islands, and completely inundate coastal wetlands. Diseases like malaria, which at present are primarily found in the tropics, may become more common in the regions of the globe between the tropics and the polar regions, called the temperate zones. For many of the world's plant species, and for animal species that are not easily able to shift their territories as their habitat grows warmer, climate change may bring extinction.(Source: Microsoft ® Encarta ® 2009. © 1993-2008 Microsoft Corporation)What may be the benefit of exaggerated weather conditions for the western United States? A.Decrease in rainfall during wet periodsB.Higher agricultural productionC.Minimal natural disastersD.Favourable weather conditions
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the blanks from 33 to 37.ROSESAccording to fossil fuel records, roses are over 35 million years old and they were cultivated in China about 5,000 years ago. A Chinese emperor in the 6th century B.C. apparently had over 600 books on roses in his library, and oil was extracted from those grown in his gardens. (33) _______, only the highest members of society were allowed to use it. If anyone else was found with even a small amount, they were (34) ________ to death. Roses were also popular with the Romans, who used their petals as medicine, a source of perfume and as confetti at weddings.Cultivated rose were only introduced to Western Europe in the 18th century. Napoleon’s wife, Josephine, started a botanical garden near Paris, (35) ______ she collected all the known varieties of rose and encouraged the breeding of new ones. This led to the flowers becoming increasingly popular, and in Britain at that time roses became so (36) ______ that they were often used as currency in local markets.All roses in Europe used to be pink or white until the first red ones arrived from China 200 years ago. These now (37) _______ love and are the world’s most common cut flower.(Source: Face2face- Upper Intermediate – Student’s Book, by Chris Redston & Gillie Cunningham)(36) A.worthless B.valuable C.prosperous D.priceless
________(64)A.sendB.talkC.sayD.pass
Choose the best answer to complete the sentences. Ocean water also will expand if it warms, _______ further to sea level rise.A.getting B.making C.leading D.contributing
Choose A, B, C, or D that best completes each sentence.Billy, come and give me a hand with cooking.A.help B.prepare C.be busy D.attempt
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.I my old school teacher last week.A.am visitingB.visited C.have visitedD.visit
Although we were impressed by the new cinema, we found it rather expensive.(AS)A.Much as we were impressed by the new cinema, we had found it rather expensive.B.Much as we were impressed by the new cinema, we find it rather expensive.C.Much as we were impressed by the new cinema, we were finding it rather expensive.D.Much as we were impressed by the new cinema, we did find it rather expensive.
The management board has ______ approved of who will take on the post, which was supported by a predictable roll proportion. A.supposedly B.allegedly C.admittedly D.decidedly
Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.A.mission B.television C.vision D.decision
George wouldn't have met Mary________ to his brother’s graduation party.A.hadn't he gone B.had he not goneC.if he has not gone D.if he should not have gone
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