Scientists estimate that more than 60 percent of cancer deaths in the United States are preventable through lifestyle changes. Although there is no certain way to avoid all cancers, reducing individual risk factors greatly decreases the likelihood of getting many forms of this dangerous disease.
The American Chemical Society estimates that smoking causes nearly 30 percent of all cancer deaths in the United States — that is, about 166,000 cancer deaths each year. All cancer deaths caused by tobacco smoking could be prevented completely by not smoking and not using smokeless tobacco. For those who already smoke, quitting will reduce the risk of developing cancer. Studies show that after about ten years of not smoking, a past smoker’s risk lowers to about the level of those who have never smoked.
After quitting smoking, eating a healthy diet is the best way to lower the risk of cancer. Certain foods have been found to protect against cancer. Among these foods are cabbages, tomatoes, soy products, and foods high in vitamins A, C, and E. In addition, green and possibly black teas contain compounds that protect the body from cancer-causing substance.
To lower cancer risk, diets should include little or no red meat. Other foods to avoid or consume in moderation (适度地) include sugar, fat from animal products, and salt. Added fats and oils should come from vegetables, such as olives or corn, rather than from animal sources. Carbohydrates (碳水化合物) should come from whole grains, such as brown rice and whole wheat bread, rather than from processed foods, such as white rice and white bread.
The risk of cancer of the esophagus (食道) increases with heavy alcohol consumption, and many studies suggest that consuming alcoholic drinks increases the risk of breast cancer as well. Studies show that limiting intake to two drinks a day for men, and one drink per day for women, reduces cancer risk.
Low levels of physical activity have been implicated (牵连) in some cancer. Moderate activity for 30 minutes a day enhances the immune system, shortens the time food takes to move through the intestines (肠), and changes body composition and hormone levels. Researchers are studying how these effects might lower cancer risk.
1.Which of the following is true according to the author?
A. A person drinking tea regularly will not be likely to suffer from cancer.
B. Once a smoker has stopped smoking, there is almost no chance for cancers.
C. A balanced diet is absolutely effective in preventing one from getting cancer.
D. Those having quitted smoking for 10 years and non-smokers have less cancer risk.
2.What kind of people increase their chances of getting cancers?
A. Those whose foods contain less sugar, animal fat, and salt.
B. Those who are not moderate in drinking, smoking or eating.
C. Those who have only one or two drinks regularly per day.
D. Those whose diet contains little red meat and a lot of vegetables.
3.Which do you think is the best title for this passage?
A. The relation between food and disease. B. Causes of different kinds cancers.
C. Tips on lifestyle for cancer prevention. D. Ways to remain more healthy.
4.We can infer from the last paragraph that _______.
A. food’s staying in body too long might have something to do with cancer
B. the reasons why physical activity lowers cancer risk are clear
C. the more you exercise, the lower cancer risk you will take
D. plenty of physical exercise is most important for remaining healthy
高二英语阅读理解中等难度题
Scientists estimate that more than 60 percent of cancer deaths in the United States are preventable through lifestyle changes. Although there is no certain way to avoid all cancers, reducing individual risk factors greatly decreases the likelihood of getting many forms of this dangerous disease.
The American Chemical Society estimates that smoking causes nearly 30 percent of all cancer deaths in the United States — that is, about 166,000 cancer deaths each year. All cancer deaths caused by tobacco smoking could be prevented completely by not smoking and not using smokeless tobacco. For those who already smoke, quitting will reduce the risk of developing cancer. Studies show that after about ten years of not smoking, a past smoker’s risk lowers to about the level of those who have never smoked.
After quitting smoking, eating a healthy diet is the best way to lower the risk of cancer. Certain foods have been found to protect against cancer. Among these foods are cabbages, tomatoes, soy products, and foods high in vitamins A, C, and E. In addition, green and possibly black teas contain compounds that protect the body from cancer-causing substance.
To lower cancer risk, diets should include little or no red meat. Other foods to avoid or consume in moderation (适度地) include sugar, fat from animal products, and salt. Added fats and oils should come from vegetables, such as olives or corn, rather than from animal sources. Carbohydrates (碳水化合物) should come from whole grains, such as brown rice and whole wheat bread, rather than from processed foods, such as white rice and white bread.
The risk of cancer of the esophagus (食道) increases with heavy alcohol consumption, and many studies suggest that consuming alcoholic drinks increases the risk of breast cancer as well. Studies show that limiting intake to two drinks a day for men, and one drink per day for women, reduces cancer risk.
Low levels of physical activity have been implicated (牵连) in some cancer. Moderate activity for 30 minutes a day enhances the immune system, shortens the time food takes to move through the intestines (肠), and changes body composition and hormone levels. Researchers are studying how these effects might lower cancer risk.
1.Which of the following is true according to the author?
A. A person drinking tea regularly will not be likely to suffer from cancer.
B. Once a smoker has stopped smoking, there is almost no chance for cancers.
C. A balanced diet is absolutely effective in preventing one from getting cancer.
D. Those having quitted smoking for 10 years and non-smokers have less cancer risk.
2.What kind of people increase their chances of getting cancers?
A. Those whose foods contain less sugar, animal fat, and salt.
B. Those who are not moderate in drinking, smoking or eating.
C. Those who have only one or two drinks regularly per day.
D. Those whose diet contains little red meat and a lot of vegetables.
3.Which do you think is the best title for this passage?
A. The relation between food and disease. B. Causes of different kinds cancers.
C. Tips on lifestyle for cancer prevention. D. Ways to remain more healthy.
4.We can infer from the last paragraph that _______.
A. food’s staying in body too long might have something to do with cancer
B. the reasons why physical activity lowers cancer risk are clear
C. the more you exercise, the lower cancer risk you will take
D. plenty of physical exercise is most important for remaining healthy
高二英语阅读理解中等难度题查看答案及解析
A 2003 U．S． Education Department survey of adult literacy（识字） estimates that over 10 percent of adults in America can not read． Globally， the number is over 775 million．
For the elderly， illiteracy makes other problems worse in big ways． ABC News reported on a study from the Archives of Internal Medicine， which said that adults who were unable to read their prescriptions （处方） were 50 percent more likely to give in to disease than literate old people．
Various organizations， including the New York Public Library， sponsor adult literacy programs． Success stories， like Ed Bray， are always inspiring．
Ed Bray stormed the beach at Normandy during World War II， earning two purple hearts． And yet， the toughest thing the 89-year-old said he had to face in his life was his illiteracy． For decades， Bray went to extraordinary efforts to keep his inability to read or write a secret． While on the job at an Air Force base， he had a coworker help him with documents． At home， his wife did the same for 62 years until her death in 2009． Finally， the determination to get rid of the shame and learn how to read broke through． " I want to read one book，" he said． "I don't care if it's about Mickey Mouse． I want to read one book before I die．"
In early 2013， Bray found Professor Tobi Thompson at Oklahoma's Northeastern University． Her patient and dedicated （奉献的） attitude helped Bray accomplish what he never thought possible． In February， he read his first book， a grade-school biography of George Washington． "It just makes me feel good，" Bray said． He's since gone on to read three books and has no plan to stop now．
1.What can be inferred from the text about the problem of illiteracy？ ______
A. The American government ignored it．
B. It is especially troublesome for old people．
C. Global organizations are founded to deal with it．
D. 10percent of the adults in the world are illiterate．
2.Why did Ed Bray keep his illiteracy secret？ ______
A. He considered it as a shame．
B. He didn't want to disappoint his wife．
C. He thought it unmatched the honors he won．
D. He was afraid it would affect his service in the Air Force．
3.In paragraph four the underline part "it's about Mickey Mouse" is used to mean ______ ．
A. it's a famous book B. it's a classic book
C. it's a simple book D. it's an interesting book
高二英语阅读理解中等难度题查看答案及解析
Mental health experts estimate that depression affects more than 120 million people worldwide. It severely affects the person’s quality of life and, in extreme cases, can lead to people killing themselves. Anti-depressant medicines have been shown as an effective treatment for most patients. But the drugs are unable to help a small number of people with the disorder.
For such person, doctors may suggest deep transcranial magnetic stimulation(经颅磁力刺激), or DTMS for short. In this treatment, patients wear a special helmet connected to a machine. An electric coil(线圈)in the helmet sends out regular waves of electromagnetic energy. These beating sounds produce changes in the brain area responsible for the disorder.
Electromagnetic stimulation(刺激) was first tried to treat depression over 30 years ago. Now, a new generation of wiring can direct the energy on one part of the brain. DTMS starts with daily 20-mimute-long treatments for 20 to 30 days. The patient then returns for treatment two to three times a week for several weeks.
The only side effect is sometimes slight head pain. Aaron Tendler is the chief medical officer of Brains way, the company that makes the machine. He said that it’s hard to say how long the effects of DTMS last.
DTMS is being used in Europe to treat both depression and other conditions. Patients there are getting treated for dementia, Alzheimer’s and Parkinson’s disease. And DTMS is even being used to help some Europeans give up smoking.
But in the United States, the Federal Food and Drug Administration(FFDA) has approved it only for the treatment of depression which cannot be treated by medicine. But clinical tests are continuing on other conditions, such as obsessive-compulsive disorder and post-traumatic stress disorder. Both of the disorders, like depression, can get in the way of a person working and getting along with people.
1.Why are people concerned about depression?
A.Because it may lead to death sometimes.
B.Because only a few people can recover from it.
C.Because it does not affect social communication.
D.Because medicine treatment usually fails to work on it.
2.How does DTMS help patients with depression?
A.By wearing a helmet in daily life.
B.By performing an operation on the head.
C.By making them face the disease bravely.
D.By letting electromagnetic waves stimulate the brain.
3.What can we infer about DTMS from the text?
A.It is quite safe to use it worldwide.
B.The use of it in America is forbidden.
C.It can cure patients of depression in a month.
D.It will be widely used in treating more diseases.
4.What would be the best title for the text?
A.Finding Hope in A Hopeless Depression
B.DTMS - A New Treatment for Depression
C.The Killer of Modern Humans Depression
D.Using Electromagnetic Waves to Cure Depression
高二英语阅读理解中等难度题查看答案及解析
______is estimated that a round-trip to Mars would take more than a year.
A,That B,what C,There D,It
高二英语单项填空中等难度题查看答案及解析
According to statistics, a man is more than twice as likely to die of skin cancer
_____a woman.
A．than B．such C．so D．as
高二英语单项填空中等难度题查看答案及解析
According to statistics, a man is more than twice as likely to die of skin cancer _________ a woman.
A. than B. such C. so D. as
高二英语单项填空简单题查看答案及解析
Social networking isn't only for the under 40s. More than 25 percent of Americans 50 years and older stay connected using sites such as Facebook, MySpace and Twitter, according to new research.
"The latest data tells us that more and more social networking is becoming a part of everyday life for Americans 50 plus," said Kevin Donnellan, the chief communications officer at AARP, which released the report.
Nearly a quarter of older Americans are on Facebook and 73 percent said they use it to stay in touch with relatives, but not just their children and grandchildren. "They are using the Internet to keep up with the world and the people who are important to them," said Jean Koppen, the author of the report. She added that older adults are also on Facebook to stay connected, not only with their family, but with their friends and peers. Almost 50 percent of older adults were introduced to the social networking sites by a family member, mainly a child or grandchild. "Just under one-fifth of adults aged 50 and older say they do not use the Internet," according to the report.
The findings are based on a telephone survey of 1,863 adults. In addition to keeping up on Facebook and Twitter older adults are also aware of the latest technology. Eighty-three percent had heard about the Apple iPad and 11 percent intended to buy one.
1.What’s the main idea of the passage?
A. Social networking isn’t for the under 40s in the U.S.A.
B. American old people’s way of life is quite fashionable.
C. The Internet is also popular among the American over 50s.
D. Facebook, MySpace and Twitter are hot websites in America.
2.Which of the following statements is TRUE according to the passage?
A. Nearly 2000 adults took part in the survey on line.
B. The over 50s were introduced to the Internet by the young.
C. About 20% of adults aged 50 and older don’t like the Internet.
D. Many Americans 50 plus stay connected using the Internet.
3.What’s the underlined sentence used for?
E. It’s used as a reason for the popularity of the Apple iPad in America.
F. It’s used as an example of the older adults’ awareness of the latest technology.
G. It’s used as a suggestion to the readers who are interested in the IT products.
H. It’s used as a choice for the Americans intending to use Social networking.
4.Where can we most probably read this passage?
I. In an experiment introduction.
J. In a computer magazine.
K. In a product advertisement.
In a news report
高二英语阅读理解中等难度题查看答案及解析
Social networking isn’t only for the under 40s. More than 25 percent of Americans 50 years and older stay connected using sites such as Facebook, MySpace and Twitter, according to new research.
“The latest data tells us that more and more social networking is becoming a part of everyday life for Americans 50 plus,” said Kevin Donnellan, the chief communications officer at AARP, which released the report.
Nearly a quarter of older Americans are on Facebook and 73 percent said they use it to stay in touch with relatives, but not just their children and grandchildren. “They are using the Internet to keep up with the world and the people who are important to them,” said Jean Koppen, the author of the report. She added that older adults are also on Facebook to stay connected, not only with their family, but with their friends and those in the same age group. Almost 50 percent of older adults were introduced to the social networking sites by a family member, mainly a child or grandchild. “Just under one-fifth of adults aged 50 and older say they do not use the Internet,” according to the report.
The findings are based on a telephone survey of 1,863 adults. In addition to keeping up on Facebook and Twitter older adults are aware of the latest technology. Eighty-three percent had heard about the Apple iPad and 11 percent intended to buy one.
Despite the popularity of the Internet among the over 50s, they still mostly go to print newspapers and magazines for news. Only one percent said they followed blogs.
1.What is the main idea of the text?
A. Social networking is becoming popular among older Americans.
B. Social networking isn’t for the under 40s in the U.S.A.
C. American old people’s way of life is quite fashionable.
D. Facebook, MySpace and Twitter are the most popular websites in the US.
2.Which of the following statements is TRUE according to the passage?
A. 85% of Americans 50 plus choose the Internet over print media.
B. About 20% of adults aged 50 plus have access to the Internet.
C. About 460 people in the telephone survey often use Facebook.
D. Three quarters of the people surveyed got to know the Internet through their family.
3.From the text, it can be concluded that______.
A. Kevin Donnellan approves of this change among older Americans
B. many older Americans are open-minded about new developments
C. Young people should introduce their elders to new technology
D. In a high tech age it is difficult to avoid social networking
4.Where does the text probably come from?
A. A novel. B. A student’s research paper
C. A technology guide. D. A newspaper.
高二英语阅读理解困难题查看答案及解析
Scientists know of more than 1,000 volcanoes on the surface of Venus, Earth’s “sister” planet. A big question has been: Are they still active? The scientists say yes.
Their evidence for recent volcanic activity on Venus comes from a lava (熔岩) flow in the planet’s northern hemisphere. The flow is hotter than the rocks around, which means the lava might still be cooling off. “The flow we studied seems to be very young---it is still warm inside,” Nataliya Bondarenko said.
Venus is a difficult planet to study from Earth because it is surrounded by thick clouds. Telescopes on Earth can’t see through these clouds, so the best information about Venus comes from spacecraft orbiting it.
Bondarenko and her colleagues studied the lava flow using data from NASA’s Magellan mission. That spacecraft spent four years in orbit around Venus and used radar to make a map of 98 percent of the planet’s surface. On October 11th, 1994, the mission ended, and the spacecraft plunged (跌落) through Venus’ heavy cloud cover and crashed onto the planet below.
While in orbit, the Magellan craft sent microwaves, which can go through Venus’ clouds, to the surface. Microwaves are invisible and can be as long as three feet. These waves are a kind of energy, like light. And like light, they bounce off surfaces. The way the waves bounced off the Venus’ surface and back to the craft supplied information that the scientists used to estimate the temperature of various parts of the planet’s surface. Bondarenko’s team found that the lava flow was hotter than its surroundings---which may mean the lava flow is in the process of cooling.
The scientists say the lava flow can’t be very old because if it were, it would have cooled off enough that Magellan wouldn’t have noticed the difference in microwaves. She adds that the flow appears in a 1978 view of the surface that a craft called the Pioneer Venus Orbiter captured.
1.What happened to Magellan in the end?
A. It was floating in space forever.
B. It flew into heavy clouds.
C. It returned to the Earth.
D. It fell onto Venus.
2.How could Bondarenko judge the temperature of the Venus?
A. By looking at it with a powerful telescope.
B. By measuring the thickness of clouds over Venus.
C. By calculating the microwave bouncing off Venus’s surface.
D. By orbiting Venus for 4 years in a spacecraft.
3.The best title for the passage may be “______ ”.
A. Warm lava on Venus
B. More volcanic eruptions on Venus
C. Venus is just like a big active volcano
D. Lava flows are first found on Venus
高二英语阅读理解中等难度题查看答案及解析
For more than twenty years scientists have been seeking to understand the mystery of the “sixth sense” of direction. By trying out ideas and solving problems one by one, they are now getting closer to one answer. One funny idea from observing animals in nature is that animals might have a built-in compass.
Many birds migrate(迁徙）twice a year between their summer homes and winter homes. Some of them fly for thousands of kilometers and mostly at night. Experiments have shown that some birds can recognize star patterns. But they can keep on course even under cloudy skies. How can they do that? A common bird that does not migrate but is great at finding its way home is the horning pigeon(鹤子）and they have been widely studied. One interesting experiment was to attach little magnets (磁铁，磁场）to the birds’ heads to block their magnetic sense — just as a loud radio can keep you from hearing a call to dinner. On sunny days, that did not fool the pigeons. Evidently they can use the sun to tell which way they are going. But on cloudy days, the pigeons with magnets could not find their way. It was as if the magnets had blocked their magnetic sense. Similar experiments with the same kind of results were done with honeybees.
In spite of the experiments, the idea of an animal compass seemed pretty extraordinary. How would animals get the magnetic stuff for a compass? An answer came from an unexpected source, A scientist was studying bacteria that lived in the mud of ponds. He found accidentally little rod-like bacteria that all swam together in one direction 一 north. In fact, the bacteria had made themselves into little magnets that could line up with the earth’s magnet.
The big news was that a living thing, even a simple bacterium，can make magnetite. That led to a search to see whether animals might have it. By using a special instrument, scientists were able to find magnetite in bees and birds，and even in fish. In each animal, except for the bee, the magnetic stuff was always in or close to the brain.
Thus, the idea of a built-in animal compass began to seem reasonable.
1.The main purpose of this passage is to .
A. explain how the animal compass was invented
B. answer how an animal would get the magnetic stuff for a compass
C .introduce a famous experiment
D. prove the idea that animals might have a built-in compass
2.Which of the following can we infer from Paragraph 3?
A. The bacteria magnetic sense seemed to be the same as the earth’s.
B. The earth itself is a big magnet with which something magnetic might lines up
C. Little rod-like bacteria were found to swim north together through experiments.
D. Migrant birds can easily lose their way because of lacking magnetie.
3.The underlined words “keep on course” in the second paragraph means“
A.stay in the correct flying route
B.lose one’s way
C.remain calm
D.recognize star patterns
4.Where is probably the built-in magnet for a fish according to the scientists?
A.Close to its stomach. B.In its heart.
C.Far from its brain. D.Inside its head.
高二英语听力第三部分中等难度题查看答案及解析