题目内容
Check the sentence structure of the following paragraphs. Cross out errors and write corrections above them. There may be more than one way to correct an error. 1 The speaker talk about a maple tree that was topping. This not a good pruning practice. Because topping cause a lot of damage to trees. The first reason was topping cause leaves and branches grew fast. The growth rate of a tree speed up when they are topping. Branches became crowded and dangerous could crush a car. Another reason, topping remove too many leaves, which the tree’s food source. The tree will starve also more likely to infected by disease. Topping cause a lot of stress for the tree therefore not good pruning practice. 2. The lecture mention reasons for choose alternative medicine. For example, an increase in conspiracy theories. Some people belief conventional medicine be causing their depend on drugs. The reading that dissatisfaction with conventional medicine, for example people did not trust the physician. Also, the professor he talking about alternative medicine how to mislead people and encourage him choose treatments who not base on science. 3 The professor made many points about the motivation and needs of .workers they support points made in the reading. First, the professor say the small work group important for workers about 3 to 15 people with one leader. The work group fill needs of workers the reason is they can participate and a sense of respect. The small work group also give workers the ability for make decisions. This point agreed with the reading it said the most satisfying jobs are those with a high level of autonomy this gave workers a voice can make their own decisions.
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Pruning is removing dead or living branches of a tree to improve the tree’s health and structure. Careful pruning will control the size of a tree and hold the tree within bounds. Tree size is maintained through crown reduction pruning, the removal of larger branches at the top of the tree to reduce its height. When done properly, crown reduction only removes branches immediately above the joint with other branches, leaving no stubs. Pruning invigorates trees and keeps them healthy. In general, a tree will be more vigorous with a few healthy branches than with many weak ones. Crowded branches never develop to full size. Large branches compete with small branches, and the small ones become targets for disease and breakage. Pruning encourages trees to develop a strong structure, which reduces the likelihood of damage during severe weather. Pruning should always be done sparingly; removing too many branches in one season can damage the tree’s capability for photosynthesis. The aim of pruning is to enhance the natural shape and beauty of a tree. Most hardwood trees have rounded crowns that lack a strong leader and may have several lateral, or side, branches. Branches grow from stems at nodes, and cuts are always made just above the stem- branch node so that the wound heals effectively. Cuts should not be made in the middle of a branch or near the end of a branch. After a mature tree reaches the desirable shape, pruning should be done only to remove broken or diseased branches and to thin occasionally to avoid overcrowding. Now listen to the recording. When you hear the question, begin your response. You may look at the reading passage dining the writing time. Summarize the points made in the lecture, being sure to explain how they contrast with specific points made in the reading passage.
The term "alternative medicine" describes healing practices that are used in place of conventional "Western" medicine. Alternative medicine often rejects science-based medicine and includes therapies that developed out of religious and cultural traditions. Examples are naturopathy, herbalism, meditation, biofeedback, hypnosis, homeopathy, and nutritional-based therapies. Advocates of alternative medicine believe that the various alternative methods are more effective than conventional medicine in treating a wide range of medical conditions. Dissatisfaction with conventional medicine leads many people to seek alternative therapies. Some people choose alternative medicine because they do not trust traditional authority figures, such as the physician, or they dislike the current delivery methods of scientific medicine, particularly the over-reliance on synthetic drugs. Some patients prefer alternative therapies because they are averse to the painful or dangerous side effects of biomedical treatments. The majority of alternative medicine users find health-care alternatives to be more in agreement with their own values, beliefs, and philosophy about health. Many have a holistic orientation to health, a belief that the body, mind, and spirit are connected. To meet the growing demand for alternative treatments, a variety of schools and colleges offer courses in alternative medicine. Even conventional medical colleges have started offering courses. Most alternative medicine programs take a holistic approach to health that explores the interconnection between the mind and body. Mind-body medicine works under the premise that the mind can affect bodily functions and symptoms. Other alternative medicine programs emphasize the study of substances found in nature such as herbs, foods, vitamins, and minerals. Now listen to the recording. When you hear the question, begin your response. You may look at the reading passage during the writing time. Summarize the points made in the lecture, being sure to explain how they challenge specific points made in the reading passage.
Psychology is a natural science that describes and explains the physiological and sensory aspects of human behavior. It studies the causes, conditions, and immediate consequences of sensations and emotions. Psychologists view the human mind as a function of the brain. Thought is a result of chemical and mechanical laws that govern brain action. All human cognition is the result of physiological processes that can be observed and measured. A variety of computational models provide tools for studying the functional organization of the mind. Because psychology is a natural science, it is based on objectively verified facts and the application of the scientific method. Psychologists conduct controlled experiments in a laboratory in order to support their basic assumptions and develop theories. Experimenters use several types of measurements, such as rate of response, reaction time, and level of neural activity in various areas of the brain. Psychologists use inductive methods to derive general principles from specific facts. They aim to acquire a body of facts and laws about the human mind. Psychology has a number of related subfields, all of which are primarily concerned with the biological bases of behavior and mental states. For example, behavioral neuroscientists use animal models, typically rats, to develop theories about the neural and cellular mechanisms of human behavior. Cognitive neuroscientists study the neural aspects of psychological processes in humans. Neuropsychologists study specific aspects of mental impairment caused by brain damage or disease. Now listen to the recording. When you hear the question, begin your response. You may look at the reading passage during the writing time. Summarize the points made in the lecture, being sure to explain how they contrast with specific points made in the reading passage.
下列关于计算机病毒的叙述中，正确的是______。
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