【正文】 alth. Of many health hazards to noise, hearing loss is the most clearly observable and measurable by health professionals. The other hazards are harder to pin down. For many of us, there may be a risk that exposure to the stress of noise increases susceptibility to disease and infection. The more susceptible among us may experience noise as a complicating factor in heart problems and other diseases. Noise that causes annoyance and irritability in health persons may have serious consequences for these already ill in mind or body. Noise affects us throughout our lives. For example, there are indications of effects on the unborn child when mothers are exposed to industrial and environmental noise. During infancy and childhood, youngsters exposed to high noise levels may have trouble falling asleep and obtaining necessary amounts of rest. Why, then, is there not greater alarm about these dangers? Perhaps it is because the link between noise and many disabilities or diseases has not yet been conclusively demonstrated. Perhaps it is because we tend to dismiss annoyance as a price to pay for living in the modern world. It may also be because we still think of hearing loss as only an occupational hazard. Paragraph 1, the phrase ―immune to‖ are used to mean ___. by by to be seen by by author’s attitude toward noise would best be described as ___. 中國最大的資料庫下載 中國最大的資料庫下載 of the following best states the main idea of the passage? is a major problem。 if corrected too much, he will stop talking. He notices a thousand times a day the difference between the languages he uses and the language those around him use. Bit by bit, he makes the necessary changes to make his language like other people. In the same way, when children learn to do all the other things they learn to do without being taughtto walk, run, climb, whistle, ride a bicyclepare those performances with those of more skilled people, and slowly make the needed changes. But in school we never give a child a chance to find out his own mistakes for himself, let alone correct them. We do it all for him. We act as if we thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to. Soon he bees dependent on the teacher. Let him do it himself. Let him work out, with the help of other children if he wants it, what this word says, what answer is to that problem, whether this is a good way of saying or doing this or not. If it is a matter of right answers, as it may be in mathematics or science, give him the answer book. Let him correct his own papers. Why should we teachers waste time on such routine work? Our job should be to help the child when he tells us that he can’t find the way to get the right answer. Let’s end this nonsense of grades, exams, marks, Let us throw them all out, and let the children learn what all educated persons must some day learn, how to measure their own understanding, how to know what they know or do not know. Let them get on with this job in the way that seems sensible to them. With our help as school teachers if they ask for it. The idea that there is a body of knowledge to be learnt at school and used for the rest of one’s life is nonsense in a world as plicated and rapidly changing as ours. Anxious parents and teachers say, ―But suppose they fail to learn something essential they will need to get in the world?‖ Don’t worry! If it is essential, they will go out into the world and learn it. does the author think is the best way for children to learn things? copying what other people do. making mistakes and having them corrected. listening to explanations from skilled people. asking a great many questions. does the author think teachers do which they should not do? give children correct answers. point out children’s mistakes to them. allow children to mark their own work. encourage children to mark to copy from one another. 中國最大的資料庫下載 中國最大的資料庫下載 passage suggests that learning to speak and learning to ride a bicycle are___. really important skills. important than other skills. different from learning adult skills. the same as learning other skills. , grades, and marks should be abolished because children’s progress should only be estimated by___. persons. children themselves. . . author fears that children will grow up into adults while being___. independent of others. critical of themselves. to think for themselves. to use basic skills. 第 11 篇答案： ABDBC 第 12篇 (Unit 3 Passage 4) We can begin our discussion of ―population as global issue‖ with what most persons mean when they discuss ―the population problem‖: too many people on earth and a too rapid increase in the number added each year. The facts are not in dispute, It was quite right to employ the analogy that likened demographic growth to ―a long, thin powder fuse that burns steadily and haltingly until it finally reaches the charge and explodes.‖ To understand the current situation, which is characterized by rapid increases in population, it is necessary to understand the history of population trends. Rapid growth is a paratively recent phenomenon. Looking back at the 8,000 years of demographic history, we find that populations have been virtually stable or growing very slightly for most of human history. For most of our ancestors, life was hard, often nasty, and very short. There was high fertility in most places, but this was usually balanced by high mortality. For most of human history, it was seldom the case that one in ten persons would live past forty, while infancy and childhood were especially risky periods. Often, societies were in clear danger of extinction because death rates could exceed their birthrates. Thus, th