He hated wandering about and expected to find a () position in the Civil Service of government.
A.permissive
B.perceptive
C.permanent
D.perpetual
A.permissive
B.perceptive
C.permanent
D.perpetual
阅读理解。 |
Alzheimer's disease affects millions of people around the world. American researchers say the disease will affect more than one hundred million people worldwide by the year twenty fifty. That would be four times the current (现在的) number. Researchers and doctors have been studying Alzheimer's patients for a century. Yet the cause and cure for the mental (智力的) sickness are still unknown. However, some researchers have made important steps towards understandingit. Several early signs of the disease involve (涉及) memory and thought processes. At first, patients have trouble remembering little things. Later, they have trouble remembering more important things, such as the names of their children. There are also some physical tests that might show who is at risk of developing Alzheimer's disease. The tests look for proteins (蛋白质) in brain and spinal cord fluid (脊髓). The proteins appear to be found only in people with the disease. The protein tests correctly identify (确定) the presence of the disease in about ninety percent of patients. Now, a much simpler physical test to predict Alzheimer's risk has been developed. Researchers found that trouble with the sense of smell can be one of the first signs of Alzheimer's disease. Using this information, they developed a test in which people were asked to identify twelve familiar smells. These smells included cinnamon (桂皮), black pepper, chocolate, paint thinner (涂料稀释剂), and smoke. The study continued for five years. During this period, the same people were asked to take several tests measuring their memory and thought abilities. Fifty percent of those who could not identify at least four of the smells in the first test had trouble with their memory and thinking in the next five years. Another study has shown a possible way to reduce a person's chances of developing Alzheimer's disease in old age. Researchers in Chicago found that people who use their brains more often are less likely to develop Alzheimer's disease. Those who read a newspaper, or play chess or word games are about three times less likely to develop the condition. Researchers say they still do not know what causes Alzheimer's disease. But they say these findings might help prevent the disease in the future. |
1. What's the main idea of the passage? |
[ ] |
A. Some early signs of the Alzheimer's disease. B. Some physical tests about Alzheimer's disease. C. The research about Alzheimer's disease. D. The patients of Alzheimer's disease. |
2. How many Alzheimer's patients now around the world? |
[ ] |
A. 100 million B. 25 million C. 400 million D. 20million |
3. What is not the early sign of the Alzheimer's disease according to the passage? |
[ ] |
A. Poor memory. B. Proteins exist in the brain. C. Trouble with the sense of smell. D. Less use of the brain. |
4. What does the underlined word "it" in paragraph 1 refer to? |
[ ] |
A. Alzheimer's disease. B. Alzheimer's patients. C. The cause and cure. D. The research. |
5. According to the passage, we can learn that _____. |
[ ] |
A. there are no proteins in the brains of the people with no Alzheimer's disease B. the people who often use their brains will not get Alzheimer's disease C. researchers and doctors have found ways to cure Alzheimer's disease D. the people who have the trouble with the sense of smell will certainly suffer from Alzheimer's disease |
Excessive poverty is probably more prevalent in the U. S. than in any of the countries that have a better infant mortality rate and female life expectancy at birth. This is probably true also for all but four or five of the countries with a longer male life expectancy. In the notably poor counties that exceed us in male survival, difficult living conditions are a more accepted way of life and in several of them, a good basic diet, basic medical care and basic education, and lifelong employment opportunities are an everyday fact of life. In the U. S. a motional unemployment level of 10 percent can be 40 percent in the ghetto while less than 4 percent elsewhere. The countries that have surpassed us in health do not have such severe or entrenched problems. Nor are such a high proportion of their people involve in them.
Excessive affluence is not so obvious a cause of ill health, but, at least until recently, few other nations could afford such unhealthful ways of living, excessive intake of animal protein and fats, dangerous intake of alcohol and use of tobacco and drugs (prescribed and proscribed), and dangerous recreational sports and driving habits are all possible only because of affluence. Our heritage, desires, opportunities, and our machismo, combined with the relatively low cost of had foods and speedy vehicles, make us particularly vulnerable to our affluence. And those who are not affluent try harder. Our unacceptable health status, then, will not be improved appreciably by expanded medical resources nor by their redistribution so much as by a general attempt to improve the quality of life for all.
All of the following are mentioned in the passage as factors affecting the health of the population EXCEPT ______.
A.the availability of medical care services
B.the genetic endowment of individuals
C.the nation's relative position in health status
D.an individual's own behavior
B.stagnant
C.intricate
D.appropriate
B.饼图
C.直方图
D.条形图
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