湖南省郴州市第二中学高三第二次质量检测英语试卷

湖南省郴州市第二中学高三第二次质量检测英语试卷内容摘要：

, but they have difficulty reading a book unless they hold it at arm’s length. If they want to do much reading, they must get glasses too. Other people do not see clearly because their eyes are not exactly the right shape. This, too, can be corrected by glasses. Some people’s eyes bee cloudy because of cataracts. Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them. When night falls, colors bee fainter to the eyes and finally disappear. After your eyes have grown used to the dark, you can see better if you use the side of your eyes rather than the centers. Sometimes, after dark, you see a small thing to one side of you, which seems to disappear if you turn your head in its direction. Thdirectly. Men on guard duty sometimes think they see something moving to one side of them. When they turn to look straight at it, they can not see it any more, and they believe they were mistaken. However, this mistake happens because the center of the eye, which is very sensitive in daylight, is not as sensitive as the sides of the eye after dark. don’t know that our eyes are of great importance until ________. A. we think about our eyes B. we cannot see clearly C. we wear glasses D. we have to do much reading to the passage, a ________ is more likely to be nearsighted. B. doctor C. guard who are farsighted ________ . do a lot of close work without glasses only see things that are very close to their eyes difficulty reading a book if they hold it at arm’s length the same problem as the nearsighted people see a small thing at night, it is better to look ________ . wide open eyes half shut or narrowed eyes at it a slightly different direction B Trees are useful to man in three important ways: they give him wood and other useful things, they give him cool places, and they help to stop drought and flood. Unluckily, in many parts of the world, man has not found that the third of these points is the most important. Man wants to make money from trees,so he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And also, he is usually too careless to plant and look after new trees. So the forests slowly disappear. This does not only mean that man will have fewer trees. The results are even worse: for where there are trees, their roots break up soilmake the rain inand also bind the soil, thus stopping it from being washed away easily。 but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich topsoil. When all the topsoil is gone, nothing is left but useless desert. most important points of trees to man is ________. help him to make money give him cool give him wood and other things help him to stop drought and floods many places forests slowly disappear because ________ . trees have been cut down by man trees are not well looked after has not paid enough attention to planting trees the above bees desert after all trees are cut down because ________ . A. roots of trees break up the soil B. there are too many rainfalls C. strong winds bring a lot of sand D. there are no longer trees to keep the rain and protect the topsoil. title best fits the passage? and Man Function of Tree Wood do People do with Trees? Usage of Tree Roots C Laptop puters are popular all over the world. People use them on trains and airplanes, in airports and hotels. These laptops connect people to their workplace. In the United States today, laptops also connect students to their classrooms. Westlake College in Virginia will start a laptop puter program that allows students to do schoolwork anywhere they want. Within five years, each of the 1500 students at the college will receive a laptop. The laptops are part of a ＄ 10 million puter program at Westlake, a 110yearold college. The students with laptops will also have access to the Inter. In addition, they will be able to use to ―speak‖ with their teachers, their classmates, and their families. However, the most important part of the laptop program is that students will be able to use puters without going to puter labs. They can work with it at home, in a fastfood restaurant or under the treesanywhere at all! Because of the many changes in puter technology , laptop use in higher education, such as colleges and universities, is workable. As laptops bee more powerful, they bee more similar to desktop puters. In addition, the portable puters can connect students to not only the Inter, but also lib。