题目内容
An analysis by Mount Sinai researchers of over eight years of dietary data from more than 400,000 people has found that the relationship between high consumption of fruits and vegetables and a reduced risk of cancer is not as strong as commonly thought. The study is published online April 6, 2010 in the Journal of the National Cancer Institute. It is widely believed that a diet rich in fruits and vegetables can reduce the risk of cancer. In 1990, the WHO recommended eating five servings of fruits and vegetables a day to prevent cancer and other diseases. However, although many studies have been conducted since then, none have been able to confirm an association between fruit and vegetable intake and cancer resistance.
Paolo Boffetta, MD, MPH, lead author of the study and Deputy Director of The Tisch Cancer Institute at Mount Sinai School of Medicine, and colleagues analyzed data from the EPIC study to evaluate relationships between cancer risk and intake of total fruit and vegetables combined.
The EPIC followers, which are ongoing and organized by professor Elio Riboli at Imperial College in London, included 142,605 men and 335,873 women surveyed between 1992 and 2000 from 10 Western European countries. Detailed information on their dietary habits and lifestyle differences was obtained. After 8.7 years of follow – up, more than 30,000 of the study's participants were diagnosed with cancer.
Dr. Boffetta and colleagues found a small but significant opposite relationship between high intake of fruits and vegetables and overall cancer risk. In this population, an increase of 200 grams a day of fruits and vegetables resulted in a reduction of about 3 percent of cancer risk. Vegetable consumption by itself also afforded a modest benefit but was restricted to women. Heavy drinkers who ate many fruits and vegetables had a somewhat reduced risk, but only for cancers caused by smoking and alcohol.
"The bottom line here is that, yes, we did find a protective effect of fruit and vegetable intake against cancer, but it is a smaller connection than previously thought," said Dr. Boffetta. "Any cancer protective effect of these foods is likely to be modest, at best.
"However, eating fruits and vegetables is beneficial for health in general and the results of this study do not justify changing current recommendations aiming at increasing intake of these foods," said Dr. Boffetta.
63.A new study shows that .
A.eating fruits and vegetables is beneficial to health
B.a diet rich in fruits and vegetables can reduce the risk of cancer
C.eating five servings of fruits and vegetables a day can prevent cancer and other diseases
D.the association between fruit and vegetable intake and cancer resistance is small
64.Before this study, people would believe that .
A.high intake of fruits and vegetables can prevent cancer and other diseases
B.heavy drinkers have the slightest chance of cancer
C.the WHO’s recommendations were modest
D.the WHO’s recommendations aim at increasing intake of fruits and vegetables
65.The population who took part in this study amounted to .
A.142,605 B.335,873 C.more than 400,000 D.30,000
66.From this study, we can infer that .
A.the intake of fruits and vegetables will be no longer necessary
B.the connection between fruits and vegetables intakes and cancer resistance is smaller than originally thought
C.taking in fruits and vegetables will still be appreciated in spite of the new discovery
D.any cancer protective effect of these foods is likely to be modest
63---66 DACC
解析
The ability to memorize things seems to be a vanishing (消失的) technique.So what can we do to bring out brain cells back into action? A newly published book on memory, Moomvalking with Einstein: The Art and Science of Remembering Everything, by American journalist Joshua Foer, makes a telling point, one that is an analysis of the importance of memorising events and stories in human history; the decline of its role in modem life; and the techniques that we need to adopt to restore the art of remembering.
As For points out, we no longer need to remember telephone numbers.Our mobile phones do that for us.We don't recall addresses either.We send emails from computers that store electronic addresses.Nor do we bother to remember multiplication tables (乘法表) .Pocket calculators do the job of multiplying quite nicely.Museums, photographs, the digital media and books also act as storehouses for memories that once we had to keep in mind.
As a result, we no longer remember long poems or folk stories by heart, feats (技艺) of memory that were once the cornerstones of most people's lives.Indeed, society has changed so much that we no longer know what techniques we should employ to remember such lengthy works.We are, quite simply, forgetting how to remember.
And let's face it, there is nothing sadder than someone who has lost their mobile phone and who finds they cannot even phone home or call their parents or partners because they cannot remember a single telephone number.That is a sad example of loss of personal independence.So, yes, there is a need for us to he able to remember certain things in life.
Therefore, Foer's book outlines the methods that need to be mastered in order to promote our memories and regain the ability to recall long strings of names, numbers or faces.In the process, he adds, we will become more aware of the world about us.
The trick, Foer says, is to adopt a process known as " elaborative encoding", which involves transforming information, such as a shopping list, into a series of "absorbing visual images".If you want to remember a list of household objects—potatoes, cottage cheese, sugar and other items, then visualise them in an unforgettable manner, he says.Start by creating an image of a large jar of potatoes standing in the garden.Next to it, imagine a giant tub of cottage cheese—the size of an outdoor pool—and then picture Lady Gaga swimming in it.And so on.Each image should be as fantastic and memorable as possible.
Using methods like this, it becomes possible to achieve great feats of memory quite easily, Foer says.It certainly seems to have worked for him: he won the annual US Memory Championships after learning how to memorize 120 random digits in five minutes; the first and last names of 156 strangers in 15 minutes; and a deck of cards in under two minutes."What I had really trained my brain to do, as much as to memorise, was to be more mindful and to pay attention to the world around," he says.
These techniques employed by Foer to master his memory were developed by Ed Cooke—a British writer and a world memory championship grandmaster.He acted as Foer's trainer during preparations for the book and helped him achieve his championship performances." Memory techniques do just one thing: they make information more meaningful to the mind, making the things we try to learn unforgettably bright and amusing," said Cooke.
【小题1】Which of the following is conveyed in this article?
A.People become more independent with modern equipment. |
B.The memory's role in life is declining in modem society. |
C.Memory techniques can make information less meaningful. |
D.Ed Cooke is the first one who benefited from Foer's techniques. |
A.museums can do everything for them. |
B.they no longer have the ability to memorize things. |
C.they have things that can act as storehouses for memories. |
D.it is not necessary to memorize anything in modem life. |
A.link things to famous pop stars |
B.find the connection between different things |
C.form vivid, unforgettable images of certain things |
D.use advanced digital imaging technology to help |
A.imagine | B.undertake | C.remark | D.indicate |
A.a news report | B.an advertisement |
C.a scientific discovery | D.a book review |