Elderly adults who regularly drink green tea may stay more agile (敏捷的) and independent than their peers over time, according to a Japanese study that covered thousands of people.
Green tea contains antioxidant chemicals (抗氧化物) that may help stop the cell damage that can lead to disease. Researchers have been studying green tea’s effect on everything from cholesterol (膽固醇) to the risk of certain cancers, with mixed results so far.
They found those who drank the most green tea were the least likely to develop “functional disability”, or problems with daily activities or basic needs, such as dressing or bathing.
Specifically, almost 13 percent of adults who drank less than a cup of green tea per day became functionally disabled, compared with just over 7 percent of people who drank at least five cups a day.
The study did not prove that green tea alone kept people agile as they grew older. Green-tea lovers generally had healthier diets, including more fish, vegetables and fruit, as well as more education, lower smoking rates, fewer heart attacks and strokes, and greater mental sharpness. They also tended to be more socially active and have more friends and family to rely on. But even with those factors accounted for, green tea itself was tied to a lower disability risk, the researchers said.
People who drank at least five cups a day were one-third less likely to develop disabilities than those who had less than a cup per day. Those people who averaged three or four cups a day had a 25 percent lower risk.
Although it’s not clear how green tea might offer a buffer (緩沖) against disability, Tomata’s team did note that one recent study found green tea extracts (提取物) seem to increase leg muscle strength in older women.
While green tea and its extracts are considered safe in small amounts, they do contain caffeine and small amounts of vitamin K, which means it could affect drugs that prevent blood clotting (凝固).
小題1:What can be learned from the passage?
A．Antioxidant chemicals can lead to disease.
B．Those who often drank green tea can’t develop “functional disability”.
C．“Functional disability” is related to problems with daily activities or basic needs.
D．People who drank at least five cups a day are not likely to become functionally disabled.
小題2:What does the fifth paragraph mainly tell us?
A．How the study was proved.B．Why green tea-lovers can keep agile.
C．What healthier diets include.D．How to lower disability risk.
小題3:What have the Researchers discovered?
A．Those who drank green tea can't develop “functional disability”.
B．Green tea alone kept people agile as they grew older.
C．How green tea might offer a buffer against disability.
D．Green tea extracts (提取物) seem to increase leg muscle strength in older women.

小題1:C
小題2:B
小題3:D

試題分析：本文向大家介紹了綠茶能夠延緩衰老，在文章中分析了具體的原因。
小題1:C 推理題。根據(jù)文章第三段They found those who drank the most green tea were the least likely to develop “functional disability”, or problems with daily activities or basic needs, such as dressing or bathing.生命“functional disability”是與daily activities or basic needs有關的。故C正確。
小題2:B 段落大意題。根據(jù)本段2，3,4行Green-tea lovers generally had healthier diets, including more fish, vegetables and fruit, as well as more education, lower smoking rates, fewer heart attacks and strokes, and greater mental sharpness.說明被動本段正是解釋為什么綠茶能夠延緩衰老的原因。故B正確。
小題3:D 細節(jié)題。根據(jù)文章倒數(shù)第二段最后2行Tomata’s team did note that one recent study found green tea extracts (提取物) seem to increase leg muscle strength in older women.說明D項內容與之相符，故D正確。
點評：本文向大家介紹了綠茶能夠延緩衰老。本文主旨鮮明,很容易在文中找到答案。做題時要注意文章的首段和每一段的首句或尾句，因為它們往往就是文章的主題句。閱讀中要注意要點之間的關系。然后帶著問題，再讀全文，找出答題所需要的依據(jù)，完成閱讀任務。
練習冊系列答案
相關習題

科目：高中英語 來源：不詳 題型：閱讀理解



Children pushed in buggies which face away from their parents may suffer long­term emotional（情感的）and language problems，according to a study published on Friday.
The research，believed to be the first of its kind，found that children who were not facing the person pushing them were less likely to talk，laugh and communicate with their parents.
The findings were based on a study of 2,722 parents and babies and an experiment where 20 babies were wheeled in buggies for a mile，facing their parents for half the journey and facing away for the other half. Parents using face­to­face buggies were twice as likely to talk to their children while the babies’ heart rates fell and they were twice as likely to fall asleep，showing that they were feeling relaxed and safe.
In addition，only one baby out of the 20 studied laughed while sitting in an away­facing buggy.
“Our data(數(shù)據(jù)) suggests that for many babies today，life in a buggy is emotionally impoverished and possibly stressful. Stressed babies grow into anxious adults，” said Dr Suzanne Zeedyk，Developmental Psychologist at Scotland’s Dundee University who carried out the research.
The study，which was published by National Literacy Trust as part of its “Talk To Your Baby” campaign，found that 62 percent of all children observed travelled in away­facing buggies.
Zeedyk said it would have a negative effect on babies’ development if they spent a long time in away­facing buggies，which would be bad to their ability to communicate with their parent at a time when their brain was developing rapidly.
Laura Barbour of the Sutton Trust，a social mobility charity which funded the research，said buggy manufacturers(制造商) should look closely at the findings.
小題1:Using away­facing buggies may________.
A．benefit both the babies and their parents
B．affect babies’ language ability permanently
C．help babies communicate with their parents
D．have positive effect on babies’ development
小題2:Which of the following is TRUE according to the passage?
A．Parents may talk twice with the babies in away­facing buggies.
B．The study suggests children feel relaxed and safe in buggies.
C．The samples (案例)of the study were 20 babies wheeled in buggies.
D．One of the 20 babies was twice as likely to fall asleep in buggies.
小題3:Which of the following would be the best title for the text?
A．Best for Kids to Face Parents in Buggy
B．Best for Kids to Communicate with Parents
C．Stressed Babies Grow into Anxious Adults
D．Buggy Manufacturers Care about the Finding

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Lack of exercise is considered a risk factor for cancer. There is considerable evidence that inactivity is connected with increased risk for lung cancer, breast cancer, etc.
In the Aerobics Center Longitudinal Study, more than 32,000 people (25,000 men and 7,000 women) were given a preventive medical examination that included a machine exercise test to measure physical fitness. They were given a physical fitness score, with one being the lowest and five being the highest fitness level. Then these people were followed for an average of 8 years. During this time, 179 men and 44 women died of cancer.
Data from the Aerobics Center Longitudinal Study show people have lower rates of cancer with higher levels of physical fitness. Studies from the Cooper Institute for Aerobics Research in Dallas suggest that men with high fitness levels are less likely to die of cancer.
The Aerobics Center Longitudinal Study also found that fitness level was more important than weight in predicting longevity (長壽). While results showed that fitness and normal weight are the ideal combination, researchers found that men who were fat but performed well in the machine performance had just a slightly increased all-cause death rate, including cancer, compared to the more slim men. The fat, but fit, men particularly lived longer than the slim, but flabby (肌肉松弛的), men.
These statistics called for a warning to the overweight: The first health goal for the overweight should be to become as fit as possible at their current weight.
67. 小題1:The text mainly talks about________.
A．the effect of exercise on reducing chances of cancer
B．how to lose weight effectively
C．different ways to keep slim
D．fat men live longer than slim ones
68. 小題2:What’s Paragraph 2 mainly about?
A．The study on the life of the overweight.
B．The study on the relationship between taking exercise and cancer.
C．The study on the ways of losing weight.
D．The study on the effects of machine exercise.
69. 小題3:Which of the following is NOT true according to Paragraph 4?
A．Fitness levels have more effects than weight on people’s longevity.
B．A man who is fit and has normal weight is most likely to live longer.
C．Slim men are more likely to live longer.
D．Fat people who like exercising are also likely to live longer.
70. 小題4:The author thinks the most important thing for the overweight is to ______.
A．increase their fitness levelsB．choose to eat vegetables
C．be on a dietD．ask for help from doctors

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Ever tried taking smart drugs to perform better in exams? They certainly work. Before last summer's exam, a few of my mates, merely out of curiosity, took a considerable amount of Modafinil, a drug normally used for narcolepsy(嗜眠發(fā)作癥). Guess what? While I was feeling sleepy, bored by revision, my mates were more focused.
Modafinil is a smart drug that gives a user a feeling of staying awake for hours. It also sharpens the mind, improves memory and helps problem-solving.
But it does more than just keeping you awake. It disturbs your mental system, making you desperate to do what you are doing. You just don't want to do anything else but revise all the time non-stop.
A recent study discovers that healthy people use smart drugs, like Modafinil, to get down to and complete tasks they have been putting off, because these tasks seem more enjoyable when taking these drugs. This might sound like what a stressed student desires. However, the pills have a range of side-effects.
"At present no evidence shows that these drugs are safe in healthy people," as a medical expert puts it, "Ordering online, though easy, is a dangerous way to obtain drugs. You never know what you're actually purchasing. "
In my experience, Modafinil changes people's behaviour too. Over those weeks my friends became different people—in turn aggressive, cold. Even eating became "a waste of time" and so did conversation.
A BBC survey found that of those who had tried smart drugs before, 92% would do so again. My friends say they'd happily do so without considering the practice a form of cheating.
I admit I was curious—but not enough to try it. Seeing the strange behaviour of other users, I feel a little bit upset and scary. Modafinil may promise to change your grades, but it might also change the way you act. Don't say you haven't been warned!
小題1:According to the author, his mates took Modafinil for the purpose of______.
A．escaping from realityB．getting better exam results
C．curing their narcolepsyD．leading an active life
小題2:Taking the smart drug can lead to ______.
A．cheating in the examB．dropping out of school
C．youth crime(犯罪)D．drug addiction(上癮)
小題3:What does the author think of his mates' taking the smart drugs?
A．Worrying.B．Inspiring.
C．Acceptable.D．Reasonable.
小題4:Which statement about Modafinil is wrong?
A．Modafinil sharpens the mind and helps problem-solving.
B．Modafinil more than just keeps you awake.
C．Modafinil has a range of side effects.
D．Modafinil is safe in healthy people.
小題5:Who are the target readers of this passage?
A．Teachers.B．Doctors.C．Scientists.D．Students.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

完型填空（共20小題；每小題1．5分，滿分30分）
Sports and   1  do a lot of good to our health. They can make us strong,   2  us from getting too fat, and keep    3  and fit.   4  they can be of great value to people   5  work with their brains most of the day, for sports and games give people   6   practice in exercising the body.  7  , they make our life richer and   8  colorful. If we   9  have a strong body, we will find it hard to do    10  we want.   11  persons of all ages enjoy watching and    12  various kinds of sports——track and fields, swimming, skating,   13  , volleyball and basketball, etc. Sports and games are also very useful in   14  training. They demand not only   15  skills and strength but also courage, endurance (忍耐力), discipline (紀律性) and usually teamwork. For boys and girls, what is learned in the playground often has a deep   16  on their character.   17 each of them learns to work for his team and not for himself on the football field, he will later find  18 natural to work for the good of his country    19 only for his own benefit. A healthy   20  makes a strong country. Let’s all take part in sports and games.
小題1:
A．musicB．art C．gamesD．entertainment
小題2:
A．prevent B．protectC．admitD．contain
小題3:
A．upset B．healthyC．foolishD．calm
小題4:
A．FirstlyB．Personally C．SpeciallyD．Especially
小題5:
A．whereB．which C．that D．who
小題6:
A．valueB．valuableC．worthD．valueless
小題7:
A．What’s moreB．In generalC．After allD．In time
小題8:
A．lessB．moreC．mostD．least
小題9:
A．didn’t B．doC．don’tD．did
小題10:
A．whoB．whateverC．whichD．whichever
小題11:
A．AndB．ButC．OrD．So
小題12:
A．carrying onB．taking part in C．joiningD．adding up
小題13:
A．footballB．playC．videoD．film
小題14:
A．lookB．characterC．appearanceD．expression
小題15:
A．spiritualB．materialC．mentalD．physical
小題16:
A．affectB．effectC．troubleD．doubt
小題17:
A．whenB．as ifC．becauseD．if
小題18:
A．themB．thisC．itD．that
小題19:
A．Apart fromB．InsteadC．Because ofD．Instead of
小題20:
A．studentB．doctorC．citizenD．teacher

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Since 1950, the amount of information about the nutrition of food has increased by nearly 900 percent. Besides this fact, obesity has risen by 214 percent and nearly two out of every three adults in America are overweight or obese. Being overweight is not only an appearance problem, and it also increases the risk of various diseases including diabetes, sleep disorder and cancer.
With so much nutritional knowledge easy to find, we cannot simply ignore our present obesity epidemic(流行病). We know that fruits and vegetables are rich in vitamin. Though we are overweight, many of us choose junk food over healthy food out of habits. One explanation for our strong desire for junk food is that we learn to connect junk food with positive feelings when we are young, and changing this attitude requires a huge amount of confidence and determination. Fortunately, new research published in May 2012 has shown a simple and accessible way to make healthier food choices- the one that doesn’t rely on great determination.
The research was based on two separate studies and it was carried out by T. Bettina Cornwell of the University of Oregon and Anna R. McAlister of Michigan State University. In the first study, 60 adults between the ages of 19 and 23 were questioned about the role of food and drinks. The survey tells us that adults prefer sweetened drinks with high-calorie, salty foods, to sweetened drinks with vegetables.
In the second study, 75 children between the ages of 3 and 5 were gathered for some experiments including drinks served with vegetables. The preschooler experiments were carried out under different situations and on different days. The researchers found that the children chose to take more green vegetables when they were served with water instead of a sweetened drink.
According to Cornwell, children learn to connect high calorie, sugary drinks such as cola, with high fat foods such as French fries, from a very early age. McAlister adds that early taste development appears to play an important role in food choices later in life. Meals served at home and meals offered at restaurants, set the stage for this idea and for the preference to choose junk food over healthy food, when beginning to take sweetened drinks.
“Our taste preferences are heavily influenced by regularly eating particular food and drinking particular drink,” states Cornwell. “If the drink on the table goes against both adults and children eating their vegetables, then perhaps it is time to change that drink… and to serve water with all meals. Restaurants could easily use water as free drink for children’s meals and charge extra money for other drinks.” Both McAlister and Cornwell are confident that serving water with meals could effectively reduce the nation’s obesity rates, diabetes rates and ever rising healthcare costs.
小題1:What may cause the risk of diseases according to the text?
A．Over nutrition.B．Obesity.C．Unbalance diets.D．Junk food.
小題2:What makes many of us choose junk food according to the author?
A．Positive feelings about food.B．High calorie of junk food.
C．Nice taste.D．Eating habits.
小題3:The underlined word “accessible” in Paragraph 2 means”_________”.
A．quickB．usefulC．easy to changeD．easy to get
小題4:From Paragraph5, we know that __________.
A．children may like sugary and high-calorie drinks even from an early age
B．early preference for food and drink may influence food choices later in life
C．easy preference for drinks should not be allowed in most of the restaurants
D．restaurants should provide the same food and drink as those at home
小題5:Which would be the best title for this text?
A．Stop children drinking sugary drinks
B．Drink water to eat more healthy
C．Change eating habits to lose weight
D．Eat healthy food at home

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Two American scientists told the people in industrial nations that they would be much healthier if they ate more of the same kind of foods eaten by humans living more than 10,000 years ago. 
The scientists say that the human body has changed very little since human first appeared on earth, but the way we live has changed greatly. Our body has not been able to deal with these changes in life style and this has led to new kinds of sicknesses. These new sicknesses were not known in ancient times. So they are called “diseases of civilization”. Many cancers and diseases of the blood system, including heart attacks and strokes（中風） are examples of such diseases. 
Scientists noted that early stone-age people used very little alcohol or tobacco, probably none. Ancient people also got a great deal of physical exercise, but a change in food is one of the main differences between life in ancient times and life today. 
Stone-age people hunted wild animals for their meat, which had much less fat than farm animals. They also ate a lot of fresh wild vegetables, and fruits. They did not use milk and other dairy products, and they made very little use of grains. But today, we eat a large amount of dairy products and grain foods. We eat six times more salt than stone-age people. We eat more sugar. We eat twice as much fat but only one third as much protein and much less vitamin C. 
People today probably do not want to live as people thousands of years ago did, but scientists say that we would be much healthier if we ate as those ancient people did, cutting the amount of fatty, salty and sweet foods. 
小題1:The people in industrial nations would be much healthier if they ate ______. 
A．more foods as humans living 10,000 years ago did
B．as humans living 10,000 years ago ate
C．more kinds of food eaten by people living over 10,000 years ago
D．more of the same kinds of foods eaten by people over 10,000 years ago
小題2:New kinds of sicknesses have been found because ______
A．the human body has changed compared with human first appearing on earth
B．the way we live has changed a little
C．our body can’t deal with the changes in life style
D．the way we live today are improper for the human body
小題3:What is the main cause mentioned in the article why people suffer from a lot of new sicknesses?
A．Ancient people did a great deal of physical exercise.
B．People today have a lot of alcohol.
C．People today have more tobacco.
D．Food is quite different between life today and life in ancient times.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

The Centers for Disease Control and Prevention (CDC) recently announced trends in fruit and vegetable consumption(食用) among adults. Since 2000, the CDC has made efforts with goals of getting 75% of Americans to eat two or more servings of fruit a day and 50% of Americans to eat three or more servings of vegetables a day. Unfortunately, Americans aren’t meeting these modest targets.
Although a diet high in fruit and vegetables can reduce the risk of many diseases, Americans just aren’t getting enough. In fact, since 2000, the amount of vegetables Americans are eating has stayed the same and the amount of fruit Americans are eating has gone down. The CDC also finds that only about a third of adults are eating their expected servings of fruit, and just over a quarter of adults are eating their expected servings of vegetables.
So why aren’t Americans getting their expected servings of fruit and vegetables? It turns out that Americans might be spoiled when it comes to their produce. A national survey conducted by Fruit2day reveals that nearly half of Americans leave fruit in their fridges until it rots with people in Boston among the worst and those in New York and Los Angeles among the best. Sadly, most Americans admit to leaving fruit in the fridge for more than a week.
There are many reasons why Americans don’t eat their fruit or vegetables, including the inconvenience of having to wash or peel it. Fruit2day offers consumers a surprising and convenient way to enjoy the goodness of fruit.
“With no added sugar, natural juices and two full servings of fruit, our Fruit2day line has really captured the imaginations of health-conscious consumers who are actively looking to get more fruit in their diets,” said Hanno Holm, president and chief executive officer of Hero-White Wave. “Fruit2day makes getting more fruit in one’s diet easier for any daily snack routine.”
小題1:For 4 million American adults, how many of them are eating two or more servings of fruit a day?
A．About 1.3 million.B．About 2 million.C．About 3 million.D．About 1 million.
小題2:We can learn from the first two paragraphs that __________ .
A．Americans have been eating fewer vegetables since 2000.
B．most Americans eat less fruit to reduce the risk of diseases.
C．most Americans prefer fruit to vegetables.
D．over 25% of adults are eating three or more daily servings of vegetables.
小題3:In which city are people most likely to leave fruit in their fridge?
A．In Boston.B．In New York.C．In Los Angeles.D．Not mentioned.
小題4:With the help of Fruit2day, Americans can __________ .
A．easily get rid of their bad eating habits
B．conveniently have more fruit in their diets
C．add sugar and natural juices to their diets
D．find another excuse for not eating healthily
小題5:Americans don’t eat their fruit or vegetables because __________ .
A．they are relatively forgetful
B．they are too busy with their work
C．they don’t think it convenient to eat them
D．they prefer daily snacks with added sugar

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

When did you last see a polar bear(北極熊)? On a trip to a zoo, perhaps? If you had attended a winter activity in New York a few years ago, you would have seen a whole polar bear club. These "Polar Bears" are people who meet frequently in the winter to swim in freezing cold water. That day, the air temperature was 3℃,and the water temperature was a little higher. The members of the Polar Bear Club at Coney Island, New York are usually about the age of 60. Members must satisfy two requirements. First, they must get along well with everyone else in the group; this is very important because there are so many different kinds of people in the club. Polar Bears must also agree to swim outdoors at least twice a month from November through February.
Doctors don't agree about the medical effects of cold-winter swimming. Some are worried about the dangers of a condition in which the body's temperature drops so low that finally the heart stops. Other doctors, however, point out that there is more danger of a heart attack during summer swimming because the difference between the air temperature and water temperature is much greater in summer than in winter.
The Polar Bears themselves are satisfied with the benefits of cold-water swimming. They say that their favorite form of exercise is very good for the circulatory system(循環(huán)系統(tǒng)) because it forces the blood to move fast to keep the body warm. Cold-water swimmers usually turn bright red after a few minutes in the water. A person who turns blue probably has a very poor circulatory system and should not try cold-water swimming.
The main benefits of cold-water swimming are probably mental. The Polar Bears love to swim all year round; they find it fun and relaxing. As one 70-year-old woman says, "When I go into water, I pour my troubles into the ocean and let them float away."
小題1:The members of the Polar Bear Club must meet the following requirements except that____.
A．they must swim outdoors at least 8 times in the four cold months
B．they must reach the age of 60
C．they should be easy to make friends with
D．they must agree to swim outdoors from November through February
小題2:According to the passage, some doctors believe it is true that_____.
A．polar Bears are bears swimming in freezing water
B．cold-water swimming can make the body temperature dangerously high
C．you are healthy if cold-water swimming turns your skin color blue
D．cold-water swimming causes more heart attacks in summer than in winter
小題3:The Polar Bears like to swim year-round, for_____.
A．it is an easy way to keep the body warm in winter
B．they can remain young
C．they find it enjoyable and interesting
D．they might meet fewer troubles in life
小題4:The passage is mainly about_____.
A．the requirements of the Polar Bear Club
B．a group of cold-water-swimming lovers
C．the Polar Bears' life in New York
D．doctors' ideas about cold-water swimming

查看答案和解析>>

同步練習冊答案