第一学期高二质检来源:学.科.网Z.X.X.K 英语试卷第一部分 阅读理解（共两节，满分40分）第一节 （共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的四个选项（A、B、C、D）中，选出最佳选项，并在答题卡上该项涂黑。（A）Eating too much fatty food, exercising too little and smoking can raise your future risk of heart disease. But there is another factor that can cause your heart problems more immediately: the air you breathe.Previous studies have linked high exposure (暴露）to environmental pollution to an increased risk of heart problem, but two analyses now show that poor air quality can lead to heart attack or stroke (中风）within as little as a few hours after exposure. In one review of the research, scientists found that people exposed to high levels of pollutants (污染物）were up to 5% more likely to suffer a heart attack within days of exposure than those with lower exposure. A separate study of stroke patients showed that even air that the U. S. Environmental Protection Agency (EPA) considers to be of “moderate” (良好）quality and relatively safe for our health can raise the risk of stroke as much as 34% within 12 to 14 hours of exposure.The authors of both studies stress that these risks are relatively small for healthy people 来源:学*科*网and certainly modest compared with other risk factors such as smoking and high blood pressure. However, it is important to be aware of these dangers because everyone is exposed to air pollution regardless of lifestyle choices. So stricter regulation by the EPA of pollutants may not only improve environmental air quality but could also become necessary to protect public health.21. The text mainly discusses the relationship between _ .A. heart problems and air quality B. heart problems and exercisingC. heart problems and smoking D. heart problems and fatty food22. The underlined word “modest” in Paragraph 3 most probably means _ .A. relatively high B. extremely lowC. relatively low D. extremely high23. The authors purpose of writing the text is most likely to _.A.describe B. persuade C. inform D. entertain（B）Deserts are found where there is little rainfall or where rain for a whole year falls in only a few weeks time. Ten inches of rain may be enough for many plants to survive (存活)if the rain is spread throughout the year, If it falls within one or two months and the rest of the year is dry, those plants may die and a desert may form.Sand begins as tiny pieces of rock that get smaller and smaller as wind and weather wear them down. Sand dunes (沙丘) are formed as winds move the sand across the 来源:学+科+网Z+X+X+Kdesert. Bit by bit, the dunes grow over the years, always moving with the winds and changing the shape. Most of them are only a few feet tall, but they can grow to be several hundred feet high.There is, however, much more to a desert than sand. In the deserts of the southwestern United States, cliffs (悬崖) and deep valleys were formed from thick mud that once lay beneath a sea more than millions of years ago. Over the centuries, the water dried up. Wind, sand, rain, heat and cold all wore away at the remaining rocks. The faces of the desert mountains are always changing -very, very slowly -as these forces of nature continue to work on the rock.Most deserts have a surprising variety of life. There are plants, animals and insects that have adapted to life in the desert. During the heat of the day a visitor may see very few signs of living things, but as the air begins to cool in the evening, the desert comes to life. As the sun begins to rise again in the sky, the desert once again becomes quiet and lonely.24. Many plants may survive in deserts when_.A. it is dry all the year round B. the rain falls only in a few weeksC. there is little rain in a year D. the rain is spread out in a year25. Sand dunes are formed when_.A. sand piles up gradually B. there is plenty of rain in a yearC. the sea has dried up over the years D. pieces of rock get smaller26. The underlined sentence in the third paragraph probably means that in a desert there is_.来源:学科网A. too much sand B. more sand than beforeC. nothing except sand D. something else besides sand27 It can be learned from the text that in a desert_.A. there is no rainfall throughout the year B. life exists in rough conditionsC. all sand dunes are a few feet high D. rocks are worn away only by wind and heat（C）International Studies (BA)Key featuresRecognizes the “global community”(国际社会) Has close connections with practical research Much of the teaching is done in small discussion groupsAbout the courseThe course gives you chances to know great power politics between nation states. It will provide more space to study particular issues such as relationship among countries in the European Union, third world debt, local and international disagreement, and the work of such international bodies as