Alzheimer"s disease affects millions of people around the world. American resear
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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 number. Researchers and doctors have been studying Alzheimer"s patients for a century. Yet the cause and cure for the mental sickness are still unknown. However, some researchers have made important steps towards understanding it.
Several early signs of the disease involve 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 in brain and spinal cord fluid. The proteins appear to be found only in people with the disease. The protein tests correctly identify 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. Using this information, they developed a test in which people were asked to identify twelve familiar smells. These smells included cinnamon, black pepper, chocolate, paint thinner, 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.
41. 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.
42. What’s the current number of Alzheimer’s patients?
A. 100 million B. 25 million C. 400 million D. 2050 million
43. What is not the early signs 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.
44. 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.
45. 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 |
答案
| 41. C 42. B 43. D 44. A 45. A |
解析
41. 主旨大意题。根据全文所讨论的内容得知，选项A, B, D选项在文章中有讨论过, 但不全面。
42. 细节理解题。由第一段第二,第三行可知:到2050年老人痴呆症病人的人数会达到100 million, 也就是现在的4倍,现在的人数就是25 million。
43. 细节理解题。A, B, C都是老人痴呆症的早期特征, D项指少用脑只会更容易得老人痴呆症, 而不是它的早期特征。
44. 词义猜测题。根据上文和此句的意义可知答案。
45. 推理判断题。由第三段The proteins appear to be found only in people with the disease可 |
举一反三
Limit the use of private cars, improve public transport and encourage the use of bicycles to control traffic congestion(拥挤) during the 2008 Olympics, experts from foreign countries advised Beijing on Friday.
Professor Nigel Wilson, of the civil and environmental engineering department of Massachusetts Institute of Technology, said he was "supportive to the limiting of private cars during the Olympic Games", saying that in foreign countries, the method is also adopted during big events, but he was unsure about the approach.
The government planned to keep an average of more than one million cars off the roads to improve traffic flow during the Olympics, said Liu Xiaoming, deputy director of the Beijing Traffic Committee, at the China Planning Network First Urban Transportation Congress.
Sharing Wilson"s view, Dr. Yoshitsugu Hayashi, dean of the Graduate School of Environmental Studies of Nagoya University, believed the reduction in car use should be achieved not by banning, but through incentives.
"Drivers who don"t use their private cars could be given points," he said, "and the points could be exchanged for goods from online shopping."
Wetzel stressed limiting the use of company cars. "Governmental officials should also be encouraged to use public transportation or ride bicycles," he said, adding that he himself is a bicycle-rider in London.
Matthew Martimo, director of Traffic Engineering with Citilabs, said the bicycle was China"s advantage. "Limiting private cars is an idea worth trying but it is just a temporary solution," he said. "The real cause of congestion is high density of people in Beijing and many have cars."
Beijing, with a population of 15 million, is home to more than three million automobiles, and the number is rising by 1,000 a day.
Professor Wilson said the Olympic Games was a great opportunity for Beijing to think about traffic problems and develop transportation, adding that the city had already been making public transport more efficient. Beijing has promised to stretch its 114-kilometer city railway to 200 kilometers before the opening of the Olympic Games.
“We are looking forward to borrowing Beijing"s experiences and drawing from its lessons in preparation for the 2012 Olympics,” said Wetzel.
51. The underlined word incentives in paragraph 4 means_______.
A. something that encourages people to try B. online shopping
C. points could be exchanged for goods D. award
52.It can be seen from the passage that ______.
A. the government planned to forbid over 1 million cars to run on the roads during the Olympics.
B. banning private cars is the best way to solve traffic congestion in Beijing
C. Beijing now has 200 kilometers of city railway
D. the use of company cars will not be limited
53. Why did Wetzel stress “ he himself is a bicycle-rider in London”?
A. To limit the use of company cars.
B. To encourage governmental officials to use public transportation or ride bicycles.
C. To show that riding bicycles is good for health.
D. To show that he loves riding bicycles.
54. Which of the following may be the reason for the traffic congestion in Beijing?
A. The 2008 Beijing Olympic games.
B. The number of cars in Beijing is rising by 1,000 a day.
C. The large population in Beijing and the large number of cars.
D. Public transport in Beijing is not efficient.
55. The purpose of the passage is ________.
A. to limit the use of private cars, improve public transport
B. to encourage the use of bicycles to control traffic congestion during the 2008 Olympics
C. to borrow Beijing"s experiences and draw from its lessons in preparation for the 2012 Olympics
D. to tell the advice given by foreign experts on traffic congestion during 2008 Beijing Olympics |
As I was reading a recent story in Slate on 20-somethings complaining about how the economy was ruining their life plans, I couldn’t help but think the 20-somethings sounded like a bunch of spoiled children who grew up expecting everything to be easy for them. As a 20-something myself, I certainly share their disappointment: my husband and I probably won’t be able to buy a house until we’re in our 40s, and we too are burdened by student loans(贷款). But why should it be any different? Being young persons in America, shouldn’t they take up all of the challenges and opportunities that this country offers?
Consider some of these views shared in the Slate story: Jennifer, 29, owner of a two-bedroom apartment with her husband, worries that she won’t be able to have children for at least a decade because they can’t afford to buy a house yet.
I read that, and I thought, what planet is she living on where you need to own a house in order to have kids? Has she ever visited a developing country, or even downtown areas in this one? Home ownership is a luxury(奢华), not a fertility requirement.
A 26-year-old in the story despairs(绝望) that he can’t afford to get a Ph.D. in literature. Well, that sounds a bit like expressing disappointment that no one will pay you to write poetry on the beach in Thailand for five years.
Yes, it’s sad that these young people feel so lost. But I think the problem is their extremely high expectations, not economic reality. Beth Kobliner, author of Get a Financial Life: Personal Finance in Your Twenties and Thirties, says that she thinks people’s expectations are slowly adjusting, but today’s 20-somethings grew up at a time when everyone’s wealth appeared to be expanding. Their parents probably saw their home values rise along with their investments. “So you have people who have grown up in an environment where people had great expectations of what living well means,” says Kobliner.
This recession(衰退) will certainly play a role in forcing those expectations into more realistic group. In the meantime, it seems a lot better for our mental health to focus on being grateful－for our one-bedroom apartments, for living in modern cities, or perhaps just for being able to eat three meals a day－than on longing for some kind of luxury life.
41．What makes the author think the 20-somethings sound like a bunch of spoiled children?
A．They expect everything to be easy for them.
B．They complain that the economy is spoiling their life plans.
C．They are reluctant to face all of the challenges.
D．They are burdened by student loans.
42．The underlined word “fertility” in Paragraph 3 probably means .
A．baby production B．pleasant
C．baby comfort D．essential
43．Which of the following is not one of the complaints of the 20-somethings?
A．They can’t have children for at least a decade to buy a house.
B．They have only one-bedroom apartment to live in.
C．They can’t buy a house until 40 because of student loans.
D．They despair at not being able to afford a Ph.D. in literature.
44．What’s the author’s attitude towards the 20-somthings with high expectation in Paragraph 5?
A．Intolerant.
B．Negative.
C．Unbelieving.
D．Understanding.
45．What is the best title for this passage?
A．How Young People Afford to Continue Their Study
B．Why Young People Can’t Afford to Buy a House
C．When Young People’s High Hopes Create Despair
D．What the 20-somethings’ High Expectations Are |
Anyone who doubts that children are born with a healthy amount of ambition need spend only a few minutes with a baby eagerly learning to walk. No matter how many times the little ones stumble in their first efforts, most keep on trying, determined to master their amazing new skill. It is only several years later, many psychologists and teachers agree, that a good number of kids seem to lose their natural drive to succeed. For the parents of such kids, whose own ambition is often tied to their children’s success, it can be a painful experience.
Figuring out why the fire went out is the first step. Assuming that a kid doesn’t suffer from a learning disability, or isn’t involved in some family crisis(危机) at home, many educators attribute a sudden lack of motivation to a fear of failure or classmate pressure. “Everything is within the kids’ control; their intelligence is changeable,” says Lisa Blackwell, a research scientist atColumbia University. More than any teacher or workshop, Blackwell says, “parents can play a key role in conveying this message to their children by praising their effort, and progress rather than emphasizing their ‘smartness’ or praising high performance alone. Most of all, parents should let their kids know that mistakes are a part of learning.”
Some experts say our education system, with its strong emphasis on testing and separation of students into different levels of ability, also bears blame for the disappearance of drive in some kids. “These programs shut down the motivation of all kids who aren’t considered gifted and talented. They destroy their confidence,” says Jeff Howard, a social psychologist. Howard and other educators say it’s important to expose kids to a world beyond homework and tests, through volunteer work, sports, hobbies and other extracurriculum activities.
“The problem of the issue is that many students experience education as irrelevant to their life goals and ambitions,” says Michael Nakkual, a Harvard education professor. The key to getting kids to aim higher at school is to free them of the idea that class work is irrelevant, to show them how doing well at school can actually help them fulfill their dreams beyond it. They need to understand that you have to learn to walk before you can run.
46．According to the passage, the parents of kids with no ambition .
A．don’t do a very good job teaching them to walk
B．are to blame if the kids do poorly in school
C．feel pain because ambitions are connected to their success
D．should take part in extracurriculum activities with kids
47．The underlined part “the fire went out” probably means .
A．the motivation was suddenly lost
B．the fear of failure was suddenly gone
C．the learning disability was suddenly lost
D．the fire was suddenly gone
48．All the following can contribute to a sudden lack of ambition except .
A．learning disability B．classmate pressure
C．emphasis on testing D．extracurricular activities
49．What is the most important thing for parents in motivating their kids?
A．By punishing kids who don’t display ambition.
B．By emphasizing smartness and high performance.
C．By telling kids that mistakes are a part of learning.
D．By praising the effort and progress they have made.
50．We can infer from the passage that .
A．children who have lost their ambition will never succeed in life
B．school performance has much to do with students’ later success
C．both the parents and the school are to blame for the lost ambition
D．younger kids learning to walk are more ambitious than older ones |
Beauty has always been regarded as something praiseworthy. Almost everyone thinks attractive people are happier and healthier, have better marriages and have more respectable jobs. Personal advisors give them better advice for finding jobs. Even judges are softer on attractive defendants. But in the executive circle, beauty can become a liability.
While attractiveness is a positive factor for a man on his way up the executive ladder, it is harmful to a woman.
Handsome male executives were considered as having more honesty than plainer men; effort and ability were thought to lead to their success.
Attractive female executives were considered to have less honesty than unattractive ones; their success was connected not with ability but with factors such as luck.
All unattractive women executives were thought to have more honesty and to be more capable than the attractive female executives. Interestingly, though, the rise of the unattractive overnight successes was connected more to personal relationships and less to ability than that of the attractive overnight successes.
Why are attractive women not thought to be able? An attractive woman is considered to be more feminine and an attractive man more manly than the less attractive ones. Thus, an attractive woman has an advantage in traditionally" female jobs, but an attractive woman in a traditionally manly position appears to lack the "manly" qualities required.
This is true even in politics. "When the only clue is how he or she looks, people treat men and women differently," says Anne Bowman, who recently published a study on the effects of attractiveness on political candidates. She asked 125 undergraduate students to rank two groups of photographs, one of men and one of
women, ir o_nler of attractiveness. The students were told the photographs were of candidates for political offices. They were asked to rank them again, in the order they would vote for them.
The results showed that attractive males completely defeated unattractive men, but the women who had ranked most attractive unchangeably received the fewest votes.
51. The word "liability" most probably means
A. disadvantage B. advantage C. misfortune D. trouble
52. In traditionally female jobs, attractiveness
A. makes women look more honest and capable
B. strengthens the feminine qualifies required
C. is of no importance to women
D. often enables women to succeed quickly
53. Bowman"s experiment shows that when it comes to polities, attractiveness
A. turns out to be a disadvantage to men
B. is more of a disadvantage than an advantage to women
C. affects men and women alike
D. has as little effect on men as on women
54. It can be inferred from the passage that people"s views on beauty are often
A. practical B. supportive C. old-fashioned D. one-sided
55. The author writes this passage to
A. give advice to job-seekers who are attractive
B. discuss the disadvantages of being attractive
C. demand equal rights for women
D. state the importance of appearance |
During the twentieth-century there has been a great change in the lives of women. A woman marrying at the end of the nineteenth century would probably have been in her middle twenties, and would be likely to have seven or eight children, of whom four or five lived till they were five years old. By the time the youngest was fifteen, the mother would have been in her early fifties and would expect to live a further twenty years, during which chance and health made it unusual for her to get paid work. Today women marry younger and have fewer children. Usually a woman"s youngest child will be fifteen when she is forty-five and can be expected to live another thirty-five years and is likely to take paid work until sixty.
This important change in women"s life has only recently begun to have its full effect on women"s economic position. Even a few years ago most girls left school and took a full-time job. However, when they married, they usually left work at once and never returned to it. Today the school-leaving age is sixteen, many girls stay at school after that age, and though women marry younger, more married women stay at work at least until shortly before their first child is born. Very many more afterwards return to full or part-time work. Such changes have led to a new relationship in marriage, with the husband accepting a greater share of the duties and satisfactions of family life.
46. We are told that in a family in about 1900 .
A. few children died before they were five
B. seven or eight children lived to be more than five
C. the youngest child would be fifteen
D. four or five children died when they were five
47.One reason why the woman of today may take a job is that she .
A. is younger when her children are old enough to look after themselves
B. does not like children herself
C. needn"t worry about food for her children
D. can be free from family duties when she reaches sixty
48. According to the passage, it is now quite usual for women to .
A. stay at home after leaving school
B. marry men younger than themselves
C. start working again later in life
D. marry while still at school
49.Many girls are now likely to .
A. give up their jobs for good after they are married
B. leave school as soon as they can
C. marry so that they can get a job
D. continue working until they are going to have a baby
50. Now a husband probably .
A. plays a greater part in looking after the children
B. helps his wife by doing more of the housework
C. feels dissatisfied with his part in the family
D. takes a part-time job so that he can help in the home |
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