中国领先的个性化教育品牌 十选九 Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need. A. steadily B. processes C. environmental D. displays E. covered F. varies G severe H. influence I. inherited J. fortunately Many trees and shrubs change color in fall. For years, scientists have worked hard to understand the changes that happen 精锐教育网站：www.1smart.org - 9 - 精锐教育· 考试研究院
中国领先的个性化教育品牌 to them. They find that three factors 41 fall's colorful farewell — leaf pigments (色素), length of night, and weather. The timing of the color change is mainly regulated by the increasing length of night. None of the other 42 influences, such as temperature, rainfall, food supply, are as unchanging as the 43 increasing length of night during fall. As days grow shorter, and nights grow longer and cooler, biochemical 44 in leaves begin to paint the landscape with an explosion of colors. And Nature puts on one of its most splendid 45 of beauty. The timing of the color change 46 by species. Some species in southern forests can become vividly colorful in late summer while all other species are still vigorously green. Oaks put on their colors long after other species have already shed their leaves. These differences in timing among species seem to be genetically 47 . for a particular species, whether on a high mountain or in warmer lowlands, will change color at the same time. However, some species are evergreen. Pines, for example, are green all the year round because they have toughened up. They have developed over the years a needle-like or scale-like foliage (绿叶植物). which is 48 with a heavy wax coating. And the liquid inside their cells contains cold-resistant elements. So the leaves of evergreens can safely withstand (经受住) all but the most 49 winter conditions, such as those in the Arctic. 阅读理解 Section B Directions: Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage you have just read. (A) Until recently, the \and more likely that the next great breakthroughs in technology will be brought through a combination of those two sciences with organic chemistry and genetic engineering. This combination is the science of biotechnology. Organic chemistry enables us to produce marvelous synthetic materials. However, it is still difficult to manufacture anything that has the property of wool to conserve ($￡#) heat and also to absorb moisture. Nothing that we have been able to produce so far comes anywhere near the combination of strength, lightness and flexibility that we find in the bodies of ordinary insects. Nevertheless, scientists in the laboratory have already succeeded in \a material that has many of the characteristics of human skin. The next step may well be \hearts and eyes\which can replace diseased organs in human beings. These will not be rejected by the body, as is the case with organs from humans. The application of biotechnology to energy production seems even more promising. In 1996 the famous science fiction writer, Arthur C. Clarke, many of whose previous predictions have come true, said that we may soon be able to develop remarkably cheap and renewable sources of energy. Some of these power sources will be biological. Clarke and others have warned us repeatedly that sooner or later we will have to give up our dependence on non-renewable power sources. Coal, oil and gas are indeed convenient. However, using them also means creating dangerously high levels of pollution. It will be impossible to meet the growing demand for energy without increasing that pollution to disastrous levels unless we develop power sources that are both cheaper and cleaner. It is tempting to think that biotechnology or some other \of the future\can solve our problems. Before we surrender to that temptation we should remember nuclear power. Only a few generations ago it seemed to promise limitless, cheap and safe energy. Today those promises lie buried in a concrete grave in a place called Chernobyl, in the Ukraine. Biotechnology is unlikely, however, to break its promises in quite the same or such a dangerous way. 65. The materials produced with organic chemistry are at present. A. not as good as natural materials B. as good as an insect's body C. better than natural materials D. as good as wool s 66. According to the passage, it may soon be possible . 精锐教育网站：www.1smart.org - 10 - 精锐教育· 考试研究院
中国领先的个性化教育品牌 A. to transplant human organs B. to make something as good as human skin C. to produce drugs without side effects D. to make artificial hearts and eyes 67. In 1996, Arthur C. Clarke predicted that . A. the Chernobyl disaster would happen in two years B. oil, gas and coal could be repeatedly used in the future C. biological power sources would be put into use. soon D. we will never stop using non-renewable power sources 68. What do we learn from the last paragraph? A. Biological power will keep all its promises. B. Biological power is cheaper than nuclear power. C. Biotechnology can solve all our future energy problems. D. Biological power may not be as risky as nuclear power. (B) We've all been there, finishing a whole bag of chips out of boredom or downing cookie after cookie while cramming(死记硬背) for a big test But when done a lot—especially without realizing it—emotional eating can affect weight, health, and overall well-being. Not many of us make the connection between eating and our feelings. But understanding what drives emotional eating can help people take steps to change it One of the biggest myths(荒诞的说法) about emotional eating is that it's driven by negative feelings. Yes, people often turn to food when they're stressed out lonely, sad, anxious, or bored. But emotional eating can be linked to positive feelings too, like the romance of sharing dessert on Valentine's Day or the celebration of a holiday feast. Sometimes emotional eating is tied to major life events, like a death or a divorce. More often, though, it's the countless little daily stresses that cause someone to seek comfort or distraction in food. Emotional eating patterns can be learned: A child who is given candy after a big achievement may grow up using candy as a reward for a job well done. A kid who is given cookies as a way to stop crying may learn to link cookies with comfort. It's not easy to \We're all emotional eaters to some extent (who hasn't suddenly found room for dessert after a filling dinner?). But for some people, emotional eating can be a real problem, causing serious weight gain. The trouble with emotional eating (aside from the health issues) is that once the pleasure of eating is gone, the feelings that cause it remain. And you often may feel worse about eating the amount or type of food you did. That's why it helps to know the differences between physical hunger and emotional hunger. Next time you reach for a snack, check in and see which type of hunger is driving it 69. People turn to emotional eating because . A. they are preparing for the test B. they enjoy the pleasure of eating C. they want to seek comfort or distraction D. they feel better after eating 70. By saying \ . A. finishing a whole bag of chips out of boredom is bad B. we are all emotional eaters to some extent C. our health will be affected by emotional eating D. people eat more without realizing it 71. If you want to break away from the patterns of emotional eating, the first thing you should do is to . A. reduce stress and anxiety B. relax and try to lose weight C. stop seeking comfort from food D. realize what is happening Section D 精锐教育网站：www.1smart.org - 11 - 精锐教育· 考试研究院
中国领先的个性化教育品牌 Directions: Read the passage carefully and answer the questions or complete the statements in no more than 12 words. \疲乏), very weak. I could hardly walk down the block,\Wendy and her doctor begin to suspect her plate. \says Wendy. \kind of fish? Swordfish, tuna and sea bass, the highest mercury- content fish sold in the commercial market,\Mercury(汞) enters the ocean with commercial pollution. It works its way up the food chain, and apparently into some of the most popular fish on the market. Wendy's doctor, Dr. Jane Hightower, was so suspicious that she began testing her Bay Area patients. All consumed large amounts offish, and an overwhelming majority tested high for mercury in their systems. \The symptoms began to clear up when Hightower cut the amount of fish in their diets. \was so obvious, but the problem was still unknown to the public,\one-sided drum with metal disks around its rim.) Her published findings drew national attention. But despite her study, there is still fierce debate over how much fish is safe to eat, and how much mercury consumers are actually eating. So we decided to do our own test. According to the EPA (Environmental Protection Agency), the safe level of mercury intake for a 120-pound woman like Wendy is a little over 38 micrograms per week. On average, a single serving of tuna purchased here in the Bay Area contained more mercury than the EPA recommends a woman of Wendy's size eat for an entire week. Sea bass had nearly twice that level, and swordfish nearly six times the EPA's safe mercury intake for a week, in a single serving. While there is little scientific data on how the body reacts to high levels of mercury, it has been linked to symptoms ranging from muscle pain to hair loss, birth defects, and muscle fatigue And, as in our testing, the evidence is mounting that the larger the fish, the more the exposure. (Note: Answer the questions or complete the statement in NO MORE THAN TEN WORDS.) 81. The popular fish on the market obtain mercury through and . 82. When Dr. Hightower \ . 83. What did Dr. Hightower do with the information she discovered? 84. What should people do according to the test done by the EPA? 41-49. HCABD FIEG 65-68. ADCD 69-71. CBD 84. People should eat less sea food. /People should cut down on fish in their diets. 81. commercial pollution, food chain 精锐教育网站：www.1smart.org - 12 - 精锐教育· 考试研究院
中国领先的个性化教育品牌 82. draw people's attention to the danger/ warn people of the danger 83. She published the results of her study. / She made it known to the public 精锐教育网站：www.1smart.org - 13 - 精锐教育· 考试研究院
