Tobacco is the second major cause of death in the world. It is responsible for the death of one in ten adults worldwide (about 5 million deaths each year). If current smoking patterns continue, it will cause some 10 million deaths each year by 2020. Half the people that smoke today, which is about 650 million people, will eventually be killed by tobacco.
Tobacco is the fourth most common risk factor for disease worldwide. The economic costs of tobacco use are equally devastating (破坏性的). In addition to the high public health costs of treating tobacco-caused diseases, tobacco kills people at the height of their productivity, depriving (剥夺) families of breadwinners and nations of a healthy workforce. Tobacco users are also less productive while they are alive due to increased sickness. A 1994 report estimated that the use of tobacco resulted in an annual global net loss of 200 thousand million US dollars, a third of this loss being in developing countries.
Tobacco and poverty are closely linked. Many studies have shown that in the poorest households in some low-income countries as much as 10% of total household expenditure is on tobacco. This means that these families have less money to spend on basic items such as food, education and health care. It contributes to a higher illiteracy rate, since money that could have been used for education is spent on tobacco instead.
1.According to the passage, tobacco affects a family in the following aspects EXCEPT _______.
A. relationship
B. education
C. health
D. economy
2. The text uses a lot of figures to _____.
A. show we shouldn’t smoke too much
B. tell people exactly the number
C. warn people of the harm of smoking
D. indicate the writer had a careful investigation
3.The underlined word “illiteracy” in the last paragraph means ____.
A. great intelligence
B. good education
C. bad behaviors
D. inability to read or write
4. What is the best title of the passage?
A. Tobacco Should Be Banned.
B. Why Is Tobacco a Major Threat to Public Health.
C. Tobacco and Poverty Go Hand in Hand.
D. Tobacco May Cause Death.
高二英语阅读理解中等难度题
Tobacco is the second major cause of death in the world. It is responsible for the death of one in ten adults worldwide (about 5 million deaths each year). If current smoking patterns continue, it will cause some 10 million deaths each year by 2020. Half the people that smoke today, that is about 650 million people, will eventually be killed by tobacco.
Tobacco is the fourth most common risk factor for disease worldwide. The economic costs of tobacco use are equally devastating (破坏性的). In addition to the high public health costs of treating tobacco-caused diseases, tobacco kills people at the height of their productivity, depriving (剥夺) families of breadwinners(养家糊口的人) and nations of a healthy workforce. Tobacco users are also less productive while they are alive due to increased sickness. A 1994 report estimated that the use of tobacco resulted in an annual global net loss of 200 thousand million US dollars, a third of this loss being in developing countries.
Tobacco and poverty are closely linked. Many studies have shown that in the poorest households in some low-income countries as much as 10% of total household expenditure is on tobacco. This means that these families have less money to spend on basic items such as food, education and health care. It contributes to a higher illiteracy rate, since money that could have been used for education is spent on tobacco instead.
1.
Which of the following statements is TRUE according to the first paragraph?
A. Smoking causes 10 percent of the deaths worldwide.
B. About 10 million people will die from smoking each year by 2020.
C. Half the people in the world will be killed by smoking.
D. Roughly there are 1,300 million smokers nowadays.
2.
According to the passage, tobacco affects a family in the following aspects EXCEPT _______.
A. relationship B. education
C. health D. economy
3.
The text uses a lot of figures to _____.
A. show we shouldn’t smoke too much
B. tell people exactly the number
C. warn people of the harm of smoking
D. indicate the writer had a careful investigation
4.
The underlined word “illiteracy” in the last paragraph means ____.
A. great intelligence B. good education
C. bad behaviors D. inability to read or write
5.
What is the best title of the passage?
A. Tobacco Should Be Banned.
B. Why Is Tobacco a Major Threat to Public Health.
C. Tobacco and Poverty Go Hand in Hand.
D. Tobacco May Cause Death.
高二英语阅读理解中等难度题查看答案及解析
Tobacco is the second major cause of death in the world. It is responsible for the death of one in ten adults worldwide (about 5 million deaths each year). If current smoking patterns continue, it will cause some 10 million deaths each year by 2020. Half the people that smoke today, which is about 650 million people, will eventually be killed by tobacco.
Tobacco is the fourth most common risk factor for disease worldwide. The economic costs of tobacco use are equally devastating (破坏性的). In addition to the high public health costs of treating tobacco-caused diseases, tobacco kills people at the height of their productivity, depriving (剥夺) families of breadwinners and nations of a healthy workforce. Tobacco users are also less productive while they are alive due to increased sickness. A 1994 report estimated that the use of tobacco resulted in an annual global net loss of 200 thousand million US dollars, a third of this loss being in developing countries.
Tobacco and poverty are closely linked. Many studies have shown that in the poorest households in some low-income countries as much as 10% of total household expenditure is on tobacco. This means that these families have less money to spend on basic items such as food, education and health care. It contributes to a higher illiteracy rate, since money that could have been used for education is spent on tobacco instead.
1.According to the passage, tobacco affects a family in the following aspects EXCEPT _______.
A. relationship
B. education
C. health
D. economy
2. The text uses a lot of figures to _____.
A. show we shouldn’t smoke too much
B. tell people exactly the number
C. warn people of the harm of smoking
D. indicate the writer had a careful investigation
3.The underlined word “illiteracy” in the last paragraph means ____.
A. great intelligence
B. good education
C. bad behaviors
D. inability to read or write
4. What is the best title of the passage?
A. Tobacco Should Be Banned.
B. Why Is Tobacco a Major Threat to Public Health.
C. Tobacco and Poverty Go Hand in Hand.
D. Tobacco May Cause Death.
高二英语阅读理解中等难度题查看答案及解析
Drowning is the second-most common cause of accidental death in children aging 1 to 14 (just behind motor vehicle accidents.) In a study by a national safety group, 90 percent of children who drowned did so while under the care of an adult or teenager. 1..
They are gasping(急促吸气)
2.. And for young children, who are in a horizontal face-down position, they are unable to keep the mouth above the water’s surface at all.
3.
They have to be able to breathe before they can speak. When people are drowning, their mouths sink below and reappears above the surface of the water. There isn't time for them to exhale, inhale, and call out.
They don’t seem in trouble
Sometimes the most important indicator that people are drowning is that they don’t look like they are drowning. They may just seem to be looking up at the sky, shore, pool deck, or dock. Ask them, “Are you all right?” If they cannot answer at all, they probably are drowning. 4..
They are trying and failing, to swim in a particular direction
A drowning victim can’t make any forward progress while in the water, according to the American Red Cross. “A young child may appear to be doing a ‘doggy paddle’ but has no forward progress,” according to the official lifeguarding guide. 5..
A．They can’t call for help
B．They can’t wave for help
C．All efforts are devoted strictly to getting air
D．Here are the steps for you to follow when someone is drowning
E．They could also take in water when drowning victims are gasping for air
F．You may have less than 30 seconds to get to them if they return a blank stare
G．Watch for these signs that someone is in trouble to avoid a tragedy in the making
高二英语七选五困难题查看答案及解析
Heart disease is one of the major killers in the world today. Many who suffer from it must have heart transplants. However, it’s difficult to get a suitable heart donation, and even if a patient survives the wait, his or her body often rejects the heart.
But there is now new hope for sufferers of heart disease. According to a study published in the journal Advanced Science, researchers from Israel’s Tel Aviv University printed a 3D human heart on April 15.
“This is the first time anyone anywhere has successfully engineered and printed an entire heart,” professor Tal Dvir told CNN. Unlike the previous 3D-printed heart structure, the new heart is complete with cells, blood vessels, chambers and other structures a heart needs to function normally. But scientists still have more to figure out before the 3D-printed heart can be fitted into the body. For one thing, the experimental heart is only the size of a thumb. And, although it can contract like a muscle, it cannot pump out blood like a real one. At present, the heart prototype is like a tiny airplane that has all of the right parts, but can’t fly.
However, the development is still regarded as a major breakthrough in medicine.
In the experiment, the researchers turned human fat tissue into human heart tissue with stem cell technology. The tissue was then turned into “bio-ink” for a 3D printer to ensure that tissue in the heart came from the patients themselves. So ideally, if it were to be placed in the body of someone in need of a transplant, there would be less risk of organ rejection. “Patients will no longer have to wait for transplants or take medications to prevent their rejection,” researchers told USA Today. “Instead, the needed heart will be printed, fully personalized for every patient.”
But the scientists think that 3D printing can be used to create other human organs. They foresee a time when the 3D printing of organs will be an everyday medical practice. “Maybe, in 10 years, there will be organ printers in the finest hospitals around the world and these procedures will be conducted routinely,” Dvir said.
1.Why do scientists have to do further research before fitting the 3D-printed heart into the body?
A.Because the heart is incomplete.
B.Because the heart can’t pump out blood.
C.Because the heart is an airplane that can’t fly.
D.Because the heart can’t contract like a muscle.
2.What can we infer from the last two paragraphs?
A.The needed heart will be printed to meet every patient’s need.
B.The 3D printing of organs will be an unusual medical practice.
C.Dvir has a negative attitude towards the future of organ printers.
D.Patients will need medicines to stop their rejection for their heart transplant.
3.What can serve as the best title for the passage?
A.Organ printers in the hospitals.
B.How to get a suitable heart donation.
C.Heart disease: one of the major killers.
D.A 3D-printed heart: new hope for heart disease sufferers.
高二英语阅读理解简单题查看答案及解析
Heart disease is the leading cause of disability and death worldwide. 1. With that in mind, if you knew that you could help keep your heart healthy by eating just a little bit less every day- about six standard-size Oreos’ worth of calories-would you?
Researchers have found evidence that just a modest reduction in our daily caloric intake (摄入) could have protective benefits for our hearts. They drew on data from the Long term Effects of Reducing Intake of Energy (ERIE) study. According to the study, the experiment began with 218 participants, all of whom were normal weight or just slightly overweight and between the ages of 21 and 50. Researchers started 143 participants on a diet that reduced their caloric intake by 25%. 2.. In the end, 188 participants completed the study-117 with caloric restriction and 71 without. Over two years, people in the calorie-cutting group reduced their caloric intake by an average of about 12%.
3.. They lost about 16.5 pounds on average and saw improvements, including lowered cholesterol (胆固醇) and blood pressure, on all six primary factors associated with risks to heart health. “We expected there to be some improvement on cardiometabolic (心血管代谢) factors,” says William Kraus, the study’s lead author. “4..”
Though the weight loss was relatively impressive, it wasn’t responsible for a majority of the heart benefits. After conducting further analysis, researchers determined that caloric restriction can have health benefits above and beyond those normally associated with weight loss. “5..”
A. We need to do exercise to benefit heart.
B. The others were assigned to a normal diet.
C. It can hold back negative effects of aging.
D. But we didn’t expect the degree of improvement we saw.
E. About 2,200 people in the U.S. die per day due to heart problems.
F. The experiment was carried out by comparing two different groups.
G. This reduction in calories had significant effects on the participants who ate less.
高二英语七选五中等难度题查看答案及解析
One of the greatest killers in the Western world is heart disease.The death rate( 率) from the disease has been increasing at an alarming speed for the past thirty years.Today in Britain,for example,about four hundred people a day die of heart disease.Medical experts know that people can reduce their chances of getting heart disease by exercising regularly,by not smoking,by changing their diets,and by paying more attention to reducing stress(压力) in their work.
However,Western health-care systems are still not paying enough attention to the prevention of the disease.There is a need for more programs to educate the public about the causes and prevention of heart disease.Instead of supporting such programs,however,the U.S.health-care system is spending large sums of money on the surgical( 外 科 的 ) treatment of the disease after it develops.This emphasis( 强 调 ) on treatment clearly has something to do with the technological advances that have taken place in the past ten to fifteen years.In this time,modern technology has enabled doctors to develop new surgical techniques.Many operations that were considered impossible or too risky(有风险的) a few years ago are now performed every day in U.S.hospitals.The result has been a huge increase in heart surgery.
Although there is no doubt that heart surgery can help a large number of people,some people point out that the emphasis on the surgical treatment of the disease has three clear disadvantages.First,it attracts interest and money away from the question of prevention.Second,it causes the costs of general hospital care to rise.After hospitals buy the expensive equipment that is necessary for modern heart surgery,they must try to recover the money they have spent.To do this,they raise costs for all their patients,not just those patients whose treatment requires the equipment.The third disadvantage is that doctors are encouraged to perform surgery—even on patients for whom an operation is unnecessary—because the equipment and expert skills are there.A government office recently stated that major heart surgery was often performed even though its chances of success were low.In one type of heart surgery,for example,only 15 percent of patients improved their conditions after the surgery.However,more than 100,000 of these operations are performed in the United States every year.
1.What effect has modern technology had on medicine?
A.It has reduced the costs of medical treatment.
B.It hasn’t helped save any patients.
C.It has encouraged doctors to do more heart surgeries.
D.It has helped educate people about the prevention of heart disease.
2.“To do this”(in Paragraph 3) means _____ .
A.to help patients recover
B.to increase the number of heart surgeries
C.to get back the money spent on the equipment
D.to buy new equipment for the treatment of heart disease
3.The author would agree that _____ .
A.more money should be spent on the prevention of heart disease
B.heart surgery has helped most patients improve their conditions
C.modern technology has made heart surgery more risky than before
D.the public have known a great deal about the causes of heart disease
4.Which would be the best title for the passage?
A.The Greatest Killer in the West
B.Heart Disease:Treat or Prevent
C.Old Technology and Heart Surgery
D.Heart Surgery:Advantages
高二英语阅读理解困难题查看答案及解析
Scientists blame greenhouse gases for being a major cause of climate change around the world. This is because greenhouse gases trap heat in the atmosphere and make the planet warmer.
Now, a team of researchers has announced a successful experiment that turned carbon dioxide into useful liquid fuel. The researchers created a device, called a reactor, which changes bon dioxide into a pure form of formic acid(甲酸). Formic acid is a substance (物质) found in ants and some other insects, as well as in many plants. It is used as an antibacterial material and in the processing of some kinds of clothing.
Haotian Wang led the research team. He said in a statement that the results of the experiment were important because formic acid is a major carrier of energy. So, the substance can provide a way to reuse carbon dioxide and prevent it from being released into the atmosphere. “It’s a fuel-cell fuel that can generate electricity and send out carbon dioxide which you can grab and recycle again,” Wang said.
“Other methods for turning carbon dioxide into formic acid require intense purification processes,” Wang said. Such methods are very costly and require a lot of energy. The Rice University team said it was able to reduce the number of steps in the traditional process to create a low-cost, energy-saving method.
The researchers reported the reactor device performed with a conversion rate (转化率) of 42 percent. This means that nearly half of the electrical energy can be stored in formic acid as liquid fuel. The team said the reactor was able to create formic acid continuously for 100 hours with little degradation (退化) of the device’s parts.
Wang said the reactor could easily be used to produce other high-value products, including alcohol-based fuels. The researchers noted that the technology could also be a big help in solving another major energy problem—how to store large amounts of power in small places.
1.What factor is the main cause of climate change?
A.Greenhouse gases. B.Chemistry waste.
C.Formic acid. D.Liquid fuel.
2.What do we know about formic acid?
A.It is a large amount of power. B.It can be found in ants.
C.It is high- value equipment. D.It is a substance in clothing.
3.What is Wang’s attitude towards his own research?
A.Doubtful. B.Aggressive.
C.Optimistic. D.Uncaring.
4.In what magazine can you read this text?
A.A travel magazine. B.A sports magazine.
C.A music magazine. D.A science magazine.
高二英语阅读理解中等难度题查看答案及解析
Every year, major storms cause many problems around the world. There is nothing people can do to stop these powerful forces of nature. But new techniques are helping scientists to predict how, when, and where big storms will happen. The more exact scientists’ warnings are, the better people can prepare for the storms.
Predictions are improving. “We’re gotten better over the years, especially the last few years,” says Phil Klotzbach, a scientist at an American university. How is a storm formed? Even if scientists know where a storm will happen, winds can suddenly change, carrying the storm to a new direction. “For a hurricane to happen, conditions have to be just right, ” Klotzbach says.
First, the ocean water needs to be warm enough so that it evaporates and rises into the air. As it rises, the vapor（水蒸气）cools and turns back into liquid. This process gives off heat. This produces energy like an engine that causes winds to increase. It drives the formation of a hurricane.
If wind speeds reach 40 miles per hour, the system is called a “tropical storm”, and it gets a name. At 75 miles per hour, it becomes a hurricane.
Hurricanes that hit the US start when a thunderstorm forms off the coast of Africa. Storms also develop over tropical waters in other parts of the world.
On average, 60 or 70 storms form off Africa every year. About 10 of them get names. There are usually about six hurricanes. Two tend to be very big, with winds of 115 miles per hour or higher.
The hurricane season lasts from June to November. Ninety percent of all hurricanes hit in August, September, and October.
1. According to the passage, hurricanes usually ________.
A. form off the coast of Africa and America
B. travel at 40 miles per hour and get its name
C. cause sea winds to rise and blow over the sea
D. hit parts of the world in summer and autumn
2. The underlined word “evaporates” (in Paragraph 5) probably means “________”.
A. begins to move B. gets lost C. becomes hot D. changes into gas
3. Which of the following about the information of a hurricane is the correct order?
a. The ocean water evaporates and goes into the air.
b. Heat creates energy and causes winds to increase.
c. The vapor cools.
d. The ocean water is warm enough.
e. The vapor changes back into liquid.
f. This course gives out heat.
A. a, d, e, b, c, f B. a, b, c, f, d, e C. d, a, c, e, f, b D. d, a, b, c, e, f
4. According to the passage, the speed of the biggest two hurricanes reaches ______.
A.115 miles per hour B.110 miles per hour
C.75 miles per hour D.95 miles per hour
高二英语阅读理解简单题查看答案及解析
It is true that world population is growing, but this is not the cause of our current and future global problems. Believing this will cause us to ignore the real problem and risk long-term damage to our planet.
Let me start by explaining why overpopulation is a myth. For one thing, the UN Population Division regularly predicts population growth but provides a low variant (变量), medium variant, and high variant to factor in various possibilities. In the 2010 revision, their high variant suggests that the world population will be almost 16 billion in 2100, but the low variant predicts it will peak at 8 billion and decrease to just over 6 billion by 2100. In most cases, it is the low variant that has come true in the past, suggesting the same will be true of their future population predictions. In addition to this, the size of families is actually decreasing.
For another, if the Earth is overpopulated, there needs to be insufficient (短缺) food, water, and space for humans to live. However, Indian economist Raj Krishna estimates that India alone is able to increase crop produce to the point of providing the entire world’s food supply. The World Food Programme confirms that there is sufficient food grown to feed the world and there is the same amount of fresh water on the planet now as there was 10,000 years ago. So how is it possible that the number of people in the world is affecting our planet?
Therefore, it is not an increase in population but an increase in consumption that is a severe threat. Materialism and overconsumption are facts of life for everybody in the western world, as possessions reflect a person’s status in society and people strive to obtain happiness through owning the latest fashionable goods. Not only that, but waste is a common occurrence which has a huge effect on our resources. It is a sad truth that 80% of the world’s resources are currently used by just 20% of the world’s population.
Our overconsumption must be addressed now to make our lives more sustainable (可持续的) and avoid continuing the terrible damage to the environment we are causing. The key is education. If we do not work towards this but instead focus on the wrong issue, we may find ourselves living on a planet that can no longer sustain human life.
1.According to the author, what causes our current and future global problems?
A. The increase in population.
B. Shortage of food and water.
C. The fast growth of material needs.
D. Failure to protect the environment.
2.The underlined word “myth” in Paragraph 2 is closest in meaning to _________.
A. fact B. misunderstanding C. possibility D. uncertainty
3.The author stresses that _____.
A. people should save food and water
B. economists are making wrong predictions
C. wrong judgment leads to serious consequences
D. measures should be taken to reduce population
4.What is mainly discussed in the passage?
A. The real cause of global problems.
B. The severe effect of overpopulation.
C. Reasonable use of natural resources.
D. Methods to reduce overconsumption.
高二英语阅读理解中等难度题查看答案及解析
It is true that world population is growing, but this is not the cause of our current and future global problems. Believing this will cause us to ignore the real problem and risk long-term damage to our planet.
Let me start by explaining why overpopulation is a myth. For one thing, the UN Population Division regularly predicts population growth but provides a low variant (变量), medium variant, and high variant to factor in various possibilities. In the 2010 revision, their high variant suggests that the world population will be almost 16 billion in 2100, but the low variant predicts it will peak（达到顶峰） at 8 billion and decrease to just over 6 billion by 2100. In most cases, it is the low variant that has come true in the past, suggesting the same will be true of their future population predictions. In addition to this, the size of families is actually decreasing.
For another, if the Earth is overpopulated, there needs to be insufficient (短缺) food, water, and space for humans to live. However, Indian economist Raj Krishna estimates that India alone is able to increase crop produce to the point of providing the entire world’s food supply. The World Food Programme confirms that there is sufficient food grown to feed the world and there is the same amount of fresh water on the planet now as there was 10,000 years ago. So how is it possible that the number of people in the world is affecting our planet?
Therefore, it is not an increase in population but an increase in consumption that is a severe threat. Materialism and overconsumption are facts of life for everybody in the western world, as possessions reflect a person’s status in society and people strive to obtain happiness through owning the latest fashionable goods. Not only that, but waste is a common occurrence which has a huge effect on our resources. It is a sad truth that 80% of the world’s resources are currently used by just 20% of the world’s population.
Our overconsumption must be addressed now to make our lives more sustainable and avoid continuing the terrible damage to the environment we are causing. The key is education. If we do not work towards this but instead focus on the wrong issue, we may find ourselves living on a planet that can no longer sustain human life.
1.According to the author, what causes our current and future global problems?
A. The increase in population.
B. Shortage of food and water.
C. The fast growth of material needs.
D. Failure to protect the environment.
2.The underlined word “myth” in Paragraph 2 is closest in meaning to _________.
A. fact B. uncertainty
C. possibility D. misconception
3.The author stresses that _____.
A. people should save food and water
B. economists are making wrong predictions
C. wrong judgment leads to serious consequences
D. measures should be taken to reduce population
4.What is mainly discussed in the passage?
A. The real cause of global problems.
B. The severe effect of overpopulation.
C. Reasonable use of natural resources.
D. Methods to reduce overconsumption.
高二英语阅读理解中等难度题查看答案及解析