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British researchers are looking for volunteers willing to eat a piece of chocolate daily for a year in the name of science. The trial(实验) will explore whether flavonoids (类黄酮) found in chocolate and other foods can reduce the risk of heart disease.
“We are looking at a high risk group first,” said Aedin Cassidy, a biochemist who will lead the study.
Previous studies have suggested dark chocolate is rich in the beneficial flavonoids linked with heart health, but experts note the high sugar and fat content of most commercially available chocolate might cancel out some of the advantages. Other research has also shown dark chocolate appears to lower blood pressure, improve the function of blood vessels (血管)and reduce the risk of heart attack.
This has encouraged companies to market specific products containing dark chocolate. Mars Inc has introduced Cocoa Via, a line of dark and premium chocolates that plays up such health advantages.
Cassidy said her team will also publish findings in the American Journal of Clinical Nutrition showing that flavonoids found in soy and cocoa appear to have the strongest effects of reducing risk of heart disease.
The next step will organize 150 women volunteers with a specific illness. The researchers will look at whether flavonoids help reduce blood pressure, cut cholesterol levels and improve the condition of blood vessels.
Half the women in the year-long study will eat chocolate containing 30 grams of flavonoids found in soy, cocoa and other fruits and vegetables. The others will get chocolate without the active flavonoids.
“This could help doctors give advice to patients on the type and amount of foods to eat to reduce heart disease risk—and it does not necessarily need to be chocolate,” Cassidy said. “If this trial works we will be able to advise on a whole range of foods. People won't have to go around eating specially designed chocolate.”
1. What is the best title for the passage?
A. Volunteers wanted for chocolate study. B. Chocolate is good for health.
C. A new research on heart attacks. D. Flavonoids found in chocolate.
2. What’s the purpose of the trial?
A. To test the advantages of a new kind of chocolate.
B. To find cures for heart disease.
C. To discover how to control blood pressure.
D. To explore the advantages of flavonoids.
3. From Paragraph 3 we can infer that __________.
A. Cassidy’s team has done several studies on chocolate
B. dark chocolate has proved beneficial to health
C. people should eat much chocolate with high sugar and fat
D. most commercially available chocolate doesn’t contain flavonoids
4. Which of the following statements is TRUE according to the passage?
A. All the volunteers will eat the same chocolate.
B. CocoaVia is a company that produces dark chocolate.
C. People who want to take part in the trial should be healthy.
D. Soy, cocoa, some fruit and vegetables contain flavonoids.
第五部分:单词拼写(共10小题,每小题1分,满分10分)
1.Premier Wen Jiabao s__________ on Sunday that the final ends of the nation's economic growth is to
improve people's well-being
2.Chek Lap Kok Airport in Hong Kong is designed to a_____________ 80 million passengers a year.
3.It was impossible to r______________ the ink from the tablecloth.
4.That plane crash o_______________ only minutes after take-off.
5.The invitation was based on her research interests and p______________ experience in the field.
6. There wasn't enough e____________ to prove his guilt
7. No.1 middle school is s______________ in the north of Handan city.
8. It’s time that the government took m____________to reduce carbon dioxide emission.
9. He c_________________ bitterly that he had been unfairly treated.
10.APEC is the most i____________ forum(论坛) in the Asian-Pacific region and one of the most dynamic organizations for economic cooperation in the world.
查看习题详情和答案>>Drunken driving — sometimes called America’s socially accepted form of murder — has become a national epidemic (流行病). Every hour of every day about three Americans on avera
ge are killed by drunken drivers, adding up to an incredible 250,000 over the past ten years. A drunken driver is usually referred to as one with 0.10-blood alcohol content or roughly three beer glasses of wine or shots of whisky drunk within two hours. Heavy drinking used to be an acceptable part of the American manly image and judges were lenient in most courts, but the drunken killing has recently caused so many well-publicized tragedies, especially concerning young children, that public opinion is no longer so tolerant.
Twenty states have raised the legal drinking age to 21, reversing a trend in the 1960s to reduce it to 18. After New Jersey lowered it to 18, the number of people killed by 18-20 years old drivers more than doubled, so the state recently upped it back to 21.
Reformers, however, fear raising the drinking age will have little effect unless accompanied by educational programs to help young people to develop “responsible attitudes” about drinking and teach them to resist peer pressure to drink.
Though new laws have led to increased arrests and tests in many areas already, to a marked decline in accidents, some states are also punishing bars for serving customers too many drinks. A bar in Massachusetts was fined for serving six or more double brandies to a customer who was “obvi
ously drunk” and later drove off the road, killing a 9-year-old boy.
As the accidents continue to occur daily in every state, some Americans are even beginning to speak well of the 13 years national prohibition of alcohol that began in 1919, which President Hoover called the “noble experiment”. They forgot that legal prohibition didn’t stop drinking, but encouraged political corruption(腐败) and organized crime. As with the booming drug trade generally, there is no easy solution.
【小题1】What can be inferred from the fact of the traffic accidents in New Jersey?
| A.many drivers were not of legal age. |
| B.young drivers were often bad drivers. |
| C.Drivers should not be allowed to drink. |
| D.the legal drinking age should be raised. |
| A.serious | B.cruel | C.merciful | D.determined |
| A.judges are giving more severe sentences |
| B.new laws are introduced in some states |
| C.the news media have highlighted the problem |
| D.drivers are more conscious of their image |
| A.Because alcohol is easily obtained. |
| B.Because drinking is linked to organized crime. |
| C.Because legal prohibition has already failed. |
| D.Because making laws alone is not sufficient. |
When I was small and my grandmother died, I couldn’t understand why I had no tears. But that night when my dad tried to cheer me up, my laugh turned into crying.
. So it came as no surprise to learn that researchers believe crying and laughing come from the same part of the brain. Just as laughing has many health advantages, scientists are discovering that so, too, does crying.
Whatever it takes for us to reduce pressure is important to our emotional (情感的) health, and the study found that 85 percent of women and 73 percent of men report feeling better after crying.
Besides, tears attract help from other people. Researchers agree that when we cry, people around us become kinder and friendlier and they are more ready to provide support and comfort. Tears also enable us to understand our emotions better; sometimes we don't even know we're very sad until we cry. We learn about our emotions through crying, and then we can deal with them.
Just as crying can be healthy, not crying — holding back tears of anger, pain or suffering — can be bad for physical health. Studies have shown that too much control of emotions can lead to high blood pressure, heart problems and some other illnesses. If you have a health problem, doctors will certainly not ask you to cry. But when you feel like crying, don't fight it. It's a natural — and healthy— emotional response.
Why didn't the author cry when her grandmother died?
A. Because her father did not want her to feel too sad.
B. Because she did not love her grandmother.
C. Because she was too shy to cry at that time.
D. The author doesn’t give the explanation.
It can be inferred from the text that ______.
A. there are only two ways to keep healthy
B. crying does more good to health than laughing
C. crying and laughing play the same roles
D. emotional health has a close relationship to physical health
According to the author, which of the following statements is true?
A. Crying is the best way to get help from others.
B. We must cry if we want to reduce pressure.
C. We will never know our deep feelings unless we cry.
D. Fighting back tears may cause some health problems.
What might be the most suitable title for the text?
A. Why We Cry B. How to Keep Healthy
C. Power of Tears D. A New Scientific Discovery
查看习题详情和答案>>Businesses are witnessing a difficult time, which has in turn produced influence on consumers’ edsire to go green . However, shoppers are still laying stress on environmental concerns.
Two thirds of customers say that environmental considerations inform their purchases to the same degree as they did a year ago, while more than a quarter say that they are now even better aware of the environmental effect on what they buy.
This may help to influence how shops store goods on their shelves. And the companies should still make efforts to become more envitonmentally friendly. Two out of three people think it is important to buy from environmentally responsible companies,with about one in seven saying that they had even decided to take their custom elsewhere if they felt a company’s environmental reputation was not good enough.
Harry Morrison, chief executive(主管)of the Carbon Trust, sympathizes:“I understand this situation where survival is very important now. But from environmental considerations, the clocd is ticking—we don’t have much time. In addition, cutting carbon has an immediate effect as costs drop and a mediun-term benefit for the brand.”
Larger companies have an extra motivation to look at reducing their carbon footprint, as new rules next year will require businesses bo buy carbon allowances to make up for their emissions(排放). Those that have taken early action will have a head start. More than two thirds of consumers are not clear about which companies are environmentally responsible. This suggests that firms that are able to relay clearly their message to the public will be in a pole position to attract shoppers.
The Carbon Trust believes that it can help by informing customers about the good work companies are doing.“When companies are granted(授予)the standard, they can use a logo(标识)in all their marketing which makes it clear that they are working towards cutting emissions,”Mr.Morrison said.
64.What’s the main idea of the passage?
A.Businesses are finding ways to send their message to the shoppers.
B.Companies will soon get information about cutting carbon emissions.
C.Firms are making efforts to encourage customers to keep goods at home.
D.Firms are urged to cut carbon emissions by shoppers’environmental awareness.
65.The underlined word“inform”in Paragraph 2 probably means“ ”.
A.affect B.change C.disturb D.reject
66.According to Harry Morrison, businesses .
A.will benefit from cutting carbon emissions
B.should buy carbon allowances for shoppers
C.are required to make up for their carbon emissions
D.have encouraged shoppers to take their custom elsewhere
67 .We can learn from the passage that businesses will .
A.have a strong desire to reduce costs
B.use the same logo in their marketing
C.gain advantages by taking early action
D.attract more shoppers by storing goods
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