Cancer researchers urged people on Wednesday to take more vitamin D to lower risk of cancer, saying studies showed a clear link. “Our suggestion is for people to increase their intake (吸入,摄入), through diet or a vitamin supplement,” Dr. Cedric Garland said in a telephone interview.
Garland's research team reviewed 63 studies, including several large long-term ones, on the relationship between vitamin D and certain types of cancer worldwide between 1966 and 2004. “There's nothing that has this ability to prevent cancer,” he said, urging governments and public health officials to do more to fortify (增强) foods with vitamin D. Garland is part of a University of California at San Diego Moores Cancer Center team that published its findings this week online in the American Journal of Public Health. Vitamin D is found in milk, as well as in some fortified orange juice, yogurt and cheeses, usually at around 100 international units(IU)a serving. “People might want to consider a vitamin supplement to raise their intake to 1000 IUs per day” Garland said, adding that it was well within the safety guidelines established by the National Academy of Sciences.
The authors said that taking more vitamin D could be especially important for people living in northern areas, which receive less vitamin D from sunshine.
“African Americans, who don't produce as much of the vitamin because of their skin colour, could also benefit significantly from a higher intake,” the authors said.
1.According to the passage, people are advised to take more Vitamin D, because__.
A. it is nutritious B. it can’t harm people’s health
C. it can lower cancer risk D. it is not taken enough every day
2.Which of the following can not help people get more Vitamin D?
A. Have some sunshine B. Have more meat
C. Have more fortified cheese D. Have a vitamin supplement
3.Who can Garland probably be?
A. A health researcher B. A doctor
C. A scientist D. A public health official
4.Which of the following food can lower people‘s chance of getting cancer?
A. Milk B. Fortified orange juice
C. Fortified yogurt D. All of the above
5.People from which area should take more Vitamin D according to the passage?
A. Asian people B. African people
C. American people D. European people
高二英语阅读理解中等难度题
Cancer researchers urged people on Wednesday to take more vitamin D to lower risk of cancer, saying studies showed a clear link. “Our suggestion is for people to increase their intake (吸入,摄入), through diet or a vitamin supplement,” Dr. Cedric Garland said in a telephone interview.
Garland's research team reviewed 63 studies, including several large long-term ones, on the relationship between vitamin D and certain types of cancer worldwide between 1966 and 2004. “There's nothing that has this ability to prevent cancer,” he said, urging governments and public health officials to do more to fortify (增强) foods with vitamin D. Garland is part of a University of California at San Diego Moores Cancer Center team that published its findings this week online in the American Journal of Public Health. Vitamin D is found in milk, as well as in some fortified orange juice, yogurt and cheeses, usually at around 100 international units(IU)a serving. “People might want to consider a vitamin supplement to raise their intake to 1000 IUs per day” Garland said, adding that it was well within the safety guidelines established by the National Academy of Sciences.
The authors said that taking more vitamin D could be especially important for people living in northern areas, which receive less vitamin D from sunshine.
“African Americans, who don't produce as much of the vitamin because of their skin colour, could also benefit significantly from a higher intake,” the authors said.
1.According to the passage, people are advised to take more Vitamin D, because__.
A. it is nutritious B. it can’t harm people’s health
C. it can lower cancer risk D. it is not taken enough every day
2.Which of the following can not help people get more Vitamin D?
A. Have some sunshine B. Have more meat
C. Have more fortified cheese D. Have a vitamin supplement
3.Who can Garland probably be?
A. A health researcher B. A doctor
C. A scientist D. A public health official
4.Which of the following food can lower people‘s chance of getting cancer?
A. Milk B. Fortified orange juice
C. Fortified yogurt D. All of the above
5.People from which area should take more Vitamin D according to the passage?
A. Asian people B. African people
C. American people D. European people
高二英语阅读理解中等难度题查看答案及解析
The Japanese government on Wednesday urged people_______ 11 types of vegetables _______Near the quake-hit Fukushima Daiichi nuclear power plant in Northeast Japan .
A.mustn’t eat ,growing B.not to eat, growing
C.not to eat ,grown D.couldn’t eat ,grown
高二英语单项填空中等难度题查看答案及解析
More American people take their troubles with them on holiday, according to a new survey. Although 40 percent said that the main reason for going away is to escape pressure (压力) from work, almost all said they worry more than they do at home. Only four in every 100 said that they are happy and free of care.
The most common worry is burglary ( 入室盗窃) , with four out of 10 worrying about their homes being broken into while they’re abroad.More than a quarter fear they will feel crazy with some other noisy and rough holiday-makers and 22 percent worry they may be attacked or their possessions will be missing. One in five think the car may break down; and the same number worry about the chances of bad weather.
The survey also showed that the stay-at-home Americans are no more. Three out of every five want to have a holiday abroad, a great increase from the figures only three years ago. The hotel holiday is still a winner, with about one third of all Americana preferring to go on a self-catering ( 自助 ) holiday.
1.The underlined word “survey” in the first paragraph most probably means ______.
A.research B.review C.exhibition D.examination
2.According to the text, about ____ of people worry more on holiday than when they are at home.
A.25% B.40% C.80% D.95%
3.The third most common worry of American holiday-makers is that they may ______.
A.be attacked or lose their possessions
B.have problems with their cars on the road
C.have bad weather on holiday
D.get mixed with some rough fellow holiday-makers
4.Where do American holiday-makers like to stay most?
A.At a hotel. B.In a quiet place.
C.At a friend's house. D.Where they can cook for themselves.
高二英语阅读理解中等难度题查看答案及解析
More and more cancer patients _________ in hospital owing to polluted environment and people’s bad lifestyles.
A. treated B. have treated
C. have been treated D. had been treated
高二英语单项填空困难题查看答案及解析
People exposed to radiation are more _______ to suffer from certain forms of cancer, which can be ______ but can’t be ______at present.
A.more likely; treated; cured B.more probable; treated; cured
C.more possible; cured; treated D.more likely; cured; treated
高二英语单项填空中等难度题查看答案及解析
The number of lung cancer will go down greatly if people to give up smoking and do more regular exercise.
A. persuade B. will persuade
C. be persuaded D. are persuaded
高二英语单项填空中等难度题查看答案及解析
阅读表达
It’s becoming more and more common for people to live to 100 or longer. In fact, researchers say that more than a third of all babies now born in wealthy nations are likely to reach their 100th birthdays, thanks to advanced medical technology and treatment. Here are some of the best strategies for becoming a centenarian.
Eat vegetables and nuts. A study found that those who ate mainly vegetables gained an extra year and a half over meat-eaters; those who ate nuts regularly lived two years longer.
Make friends. Another study found that people with strong social networks were 50 percent less likely to die over a certain period. If you don’t have many friends or relatives in your local community, you can join in the voluntary activities or take part in a hobby group. You will stay happy and healthy through building the connections.
Don’t smoke. This is important: With occasional exceptions, smokers die younger than non-smokers. Even if you have had the habit for decades, quitting will help with your health greatly. It’s important to get your loved ones to stop it, too. People who breathed in secondhand smoke were 26 percent more likely to get heart disease than those who rarely stayed with smokers.
Improve your lifestyle. Along with healthy eating, you should focus on stress management, regular exercise, and building healthy relationships. When you eat more healthily, manage stress, exercise and love more, your brain actually gets more blood flow and more oxygen.
Have a sense of purpose. A study found that the common feature in communities with many people who are 100 or older was that older people still took part in daily life, through tasks such as cooking, cleaning and gardening. They feel the motivation(动机) to stay active, to get out of bed in the morning and live for a purpose.
1.What does the text mainly talk about? (No more than 8 words.)
2.Please explain the underlined word “centenarian” in English? (No more than 8 words.)
3.Why is secondhand smoke harmful to people according to the passage? (15 words.)
4.How can we make friends if we don’t have many friends or relatives nearby in the author’s opinion? (No more than 10 words)
5.If you want to live longer, which of the strategies do you think is the best and why?(No more than 25 words.)
高二英语阅读表达简单题查看答案及解析
A new research shows that in Britain more and more people are returning to the old tradition that the whole family have a meal at table. Worrying about the obesity and breakdown of a family, people change their eating habits so greatly, according to analysis. They find the number of the family having a meal together increases by 5% from 2002 to 2004, and most people who have meals with their family come from the rich social class.
The new discovery makes doctors and the people struggling against obesity extremely excited. Giving up the tradition that the whole family have a meal together is exactly one of the reasons for a series of problems including children’s overweight. If a child has a meal in front of the television or the computer alone, he will often eat some fast food.
Jason Collins is one of the persons returning to the old tradition. Collins is a manager of a bake(烘面包) house. He finds after he gets used to having a meal at home with his child, the child becomes much more obedient(听话的). Dr. Jin is a child psychologist, and she expresses welcome to this result of the study. She says it can make parents have a very good chance to chat with the child when the whole family have a meal together.
1. What makes people change their eating habit back to the old tradition in Britain?
A.Worrying about their children. | B.Worrying about some social problems. |
C.Worrying about the living expense. | D.Worrying about health and family problems. |
2. We can infer from the passage that _______.
A.people’s eating habit has much effect on their family |
B.most rich people have meals with their family |
C.most children have the problem of overweight |
D.most children don’t like having dinner with the parents |
3. How do the people who hope to lose weight feel about the new discovery?
A.They feel glad. | B.They feel surprised. |
C.They feel sorry. | D.They feel disappointed. |
4. Which of the following statements is TRUE according to the passage?
A.The child having dinner with his parents doesn’t like watching TV. |
B.Children become overweight all because of having dinner alone. |
C.The family having dinner together is more united and friendly. |
D.The reason a child has dinner alone is that he likes fast food. |
高二英语阅读理解简单题查看答案及解析
People tend to become more personal and hide less of themselves when using email. Researchers from Open University in Britain have found in a recent study that there are good reasons for this.
The team of researchers asked 83 pairs of students, all strangers to each other, to solve a problem. They had to discuss this question: If only five people in the world could be saved from a world disaster, who should they be? The pairs of students had to talk over the problem either face to face or by computers. Dr. Johnson said, “They told their partners four times as much about themselves when they talked over the Internet as when they talked face to face. When the computers were fitted with cameras so that students could see each other, this limited the personal side of the conversation.”
Generally the information was not extremely personal. It was mainly about things such as where they went to school, or where they used to live. But some students discussed their love stories, and personal childhood experiences.
Dr Johnson believes that emailing encourages people to focus on themselves. And when they do this, they become more open, especially if there are no cameras. “If you cannot see the other person, it becomes easier to talk about yourself. This is because you are not thinking what the other person is thinking of you. So emailing has become the modern way of talking,” said Dr. Johnson. However, this style of talking is not entirely new. “In the 19th century people started to use the ‘telegraph’ to communicate. Now the same kind of thing has happened and people ended up speaking more freely.”
Dr. Johnson thinks that emailers need to know about these effects of emailing, especially when they start work in a company. “ If you don’t know about them, you could find yourself saying more about yourself than you wanted to.”
1.The subject discussed in this passage is _______.
A. how people do research studies
B. how people open up when emailing
C. how to communicate at work
D. how to discuss and solve a problem
2.The reason that some couples talked freely about themselves is that _______.
A. they didn’t talk about very personal things
B. they couldn’t see each other
C. the cameras on the computers were turned on
D. they had to discuss a question
3.In the writer’s opinion, one should ______.
A. focus on oneself when emailing
B. talk more freely in emails than usual
C. consider how one uses email at work
D. discuss any subject that one wants to
高二英语阅读理解困难题查看答案及解析
More and more people are taking their iPads to bed with them to surf the web, check facebook or send e-mails before switching off the light. But researchers are warning that the blue light their screens give off can stop users getting a good night’s sleep. That is because this type of light is similar to daylight, convincing the brain that it is still daytime. Blue light prevents the production of a brain chemical called melatonin, which helps us fall asleep. By contrast, light which is more orange or red does not prevent melatonin production, perhaps because our brains recognize it as a cue that the day ends.
Scientists have known for years that staring at screens late in the evening can affect sleep ---- they are television screens, computer screens or mobile phone screens. However, because mobiles and iPads are by nature portable ---- not to say addictive ---- more people are taking them into the bedroom. Users also tend to hold them much closer to their eyes than a computer or television screen.
Researchers are warning that looking at iPad displays for more than two hours leads to lower natural melatonin levels as the devices give off blue light. They say, “Turning off the devices at night is the final solution. But if you have to use these devices at night, dim the display to cut down irritation of the eyes and limit the time you spend on them before bed.”
They wrote in the journal Applied Ergonomics(应用人类工程学) that iPad makers should adjust the spectral power distribution(光谱功率分布) of the devices so that they affect the sleep patterns of users less.
It is not just a good night’s sleep that could be harmed by too much late night screen time. Researchers know that long-term harm to sleep patterns can lead to an increased risk of obesity and even cancers.
1.Blue light prevents iPad users from sleeping well because ____.
A. it is the same as daylight which keeps people awake
B. it makes the brain more active
C. it is brighter than light that is more orange or red
D. it can help decrease the production of melatonin
2.The underlined phrase “dim the display” means ____.
A. keep away from the display
B. make the display less bright
C. clean the display carefully
D. turn off the display
3. In the last paragraph, the author intends to ____.
A. warn of the seriousness of long-term poor sleep
B. call on researchers to study sleep patterns
C. show the danger of obesity and cancers
D. show how sleep is harmed by using iPads too much
4.What’s the main idea of the passage?
A. Scientists are warning that blue light is bad for our health.
B. People should limit the use of electronic devices
C. Using iPads before bed can cause a poor night’s sleep.
D. Looking at screens of iPads increase chances of sleeplessness.
高二英语阅读理解中等难度题查看答案及解析