题目内容
what is nearby.
B. look through
C. figure out
D. refer to
阅读快车系列答案People have been talking about health for a long time because people know the importance of it. People's understanding of health also becomes deeper with the progress in scientific research. Recently the term "health" has come to have a wider meaning than it used to. It no longer means just the absence of illness. Today, health means the well-being of your body, your mind and your relationship with other people. This new concept of health is closely related to another term-quality of life. Quality of life is the degree of overall satisfaction that a person gets from life.
Why has the emphasis of health shifted from the absence of disease to a broader focus on the quality of a person's life? One reason for this has to do with the length and conditions of life that people can now expect. Medical advances have made it possible for people today to live longer, healthier lives. Imagine for a moment that you were born in the year 1900. You could have expected on average to live until about the age of 47. In contrast, if you were born in the year 1999, you could expect to live to the age of 75.
【小题1】________ leads to people's deeper understanding of health.
| A．Common knowledge |
| B．Progress in scientific research |
| C．Better conditions of living |
| D．Quality of life |
| A．people enjoy better conditions of living and they can live longer |
| B．people pay more attention to their physical health, not their mental health |
| C．people have realized the importance of mental well-being |
| D．people are inspired by medical advances |
| A．nowadays the emphasis of health has a broader focus because of improvements in the quality of food |
| B．the overall quality of people's lives improved greatly in the 20th century |
| C．those who never fall ill are the truly healthy people |
| D．those who were born before 1900 could not have lived until now |
| A．different understandings of the term "health" |
| B．improving the quality of life |
| C．the importance of quality living |
| D．people's expectations of a long and healthy life |
A new study has found that it may be possible to train people to be more intelligent, increasing the brainpower they had at birth．
Until now，it has been widely assumed that the kind of mental ability that allows us to solve new problems without having any relevant previous experience—what psychologists call fluid intelligence—is innate and cannot be taught（though people can raise their grades on tests of it by practicing）．
But in the new study，researchers describe a method for improving this skill，along with experiments to prove it works．
The key, researchers found, was carefully structured training in working memory—the kind that allows memorization of a telephone number just long enough to dial it．This type of memory is closely related to fluid intelligence，so the researchers reasoned that improving it might lead to improvements in fluid intelligence．
First they measured fluid intelligence of volunteers using standard tests．Then they trained each in a complicated memory task—the child’s card game，in which they had to recall a card they saw and heard．During the course, they needed to ignore irrelevant items, monitor ongoing performance，manage two tasks at the same time and connect related items to one another in space and time．
The four groups experienced a half-hour of training daily for 8, 12, 17 and 19 days, respectively．To make sure they were not just improving their test-taking skills，the researchers compared them with control groups that took the tests without the training．
The results, published Monday in The Proceedings of the National Academy of Sciences，were striking．Improvement in the trained groups was a lot greater．Moreover，the longer they trained, the higher their scores were．All performers，from the weakest to the strongest，showed significant improvement．
“Our results show you can increase your intelligence with proper training．” said Dr Jaeggi, a co-author of the paper．“No one knows how long the gains will last after training stops,” he added, “and the experiment’s design did not allow the researchers to determine whether more training would continue to produce further gains．”
【小题1】.The researchers thought the key to improving the intelligence was ______________．
| A．memorizing telephone numbers | B．improving working memory |
| C．training in concentration | D．recalling a card |
| A．ignoring irrelevant items | B．monitoring ongoing performance |
| C．managing two tasks at the same time | D．using previous experience |
| A．trained the four groups for the same period of time |
| B．only made comparisons between the four groups |
| C．compared the four groups with control groups |
| D．trained the four groups together |
| A．inform the readers of a new study |
| B．call on people to be trained to increase intelligence |
| C．prove one’s born brainpower can be improved |
| D．tell people the improved intelligence will last forever |
阅读下面短文，并根据所读内容在表格中的空格处填入恰当的单词。
注意：每个空格只填一个单词。
“HEARTLESS”— a word you wouldn’t want to use to describe a person. But having his heart removed was what saved Craig Lewis’ life—and what made him the first living “heartless” man.
The 55-year-old，dying of heart disease，was told he only had 12 hours to live， when Billy Cohn and Bud Frazier, doctors from the Texas Heart Institute, decided to try something new. They removed Lewis heart and replaced it with an artificial (人造的) one. Less than a week after the operation, Lewis was able to sit and speak.
Lewis kept on living like a normal person, with only one difference—he didn’t have a heartbeat. The human heart usually pumps blood through our bodies by beating regularly. By contrast, this artificial heart pushes the blood forward with two moving blades(桨叶). If you were to touch Lewis or listen to his chest, you would not feel a heartbeat. If you hooked him up to an EKG(心电图) machine, the line would be flat.
Scientists have been trying to create a working artificial heart for years. Until now, all artificial hearts either broke down or caused blocks and infections.
But after five years of hard work, Dr Cohn and Dr Frazier developed this artificial heart. It is smaller and quieter than other artificial hearts and can last much longer. They tested it on 38 calves (牛犊) and all of them turned out energetic and healthy. Lewis is the first human proof that the machine is a success.
The doctors will have to work more on the device and decide on a final design before it can be widely used. The US Food and Drug Administration will also need to say that the machine is safe. But this artificial heart looks likely to bring a ray of hope to thousands of patients.
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Passage outline |
Supporting details |
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A 1. in the history of medicine |
◆ 55-year-old Lewis was on the 2. of death. He was told that he only had 12 hours to live. ◆ Two American doctors had his heart 3. and replaced it with an artificial one. That made Lewis the first living heartless man. |
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Differing from the human heart |
◆ Lewis’ new heart pushes the blood forward with two moving blades. ◆ His heart rate is at 4. with a 5. line on the screen of an EKG machine. |
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6. of this artificial heart |
◆ It is smarter and quieter than other artificial hearts and can last much longer. ◆ It hasn’t yet broken down. Nor has it got 7. and infected. |
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Reasons for being8. about this artificial heart. |
◆ The doctors will have to further 9. the device before it is massively produced. ◆ Yet this artificial heart looks likely to bring the opportunity of 10. to thousands of patients. |