Heart disease is one of the major killers in the world today. Many who suffer from it must have heart transplants (移植). However, it’s difficult to get a suitable heart donation, and even if a patient survives the wait, his or her body often rejects (排斥) 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 (血管), chambers (心室) 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 (拇指). And, although it can contract (收缩) like a muscle, it cannot pump out blood like a real one. At present, the heart prototype (样品) 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 (脂肪组织) into human heart tissue with stem cell (干细胞) 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 (个性化的) 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 is the 3D-printed heart important?
A.It will be used on a patient.
B.It is the first 3D-printed heart.
C.It will replace a heart donation.
D.It has a complete heart structure.
2.What problem do 3D-printed hearts have?
A.They cost too much. B.They are too small.
C.They can’t contract. D.They are hard to produce.
3.Why would there be less risk of organ rejection with the 3D-printed heart?
A.It would be made with stem cell technology.
B.It would be made from human fat tissue.
C.It would come from a patient’s body.
D.It would be printed according to the patient’s condition.
4.What attitude does Tal Dvir hold toward the future of 3D printing of organs?
A.Confident. B.Doubtful.
C.Worried. D.Confused.
高一英语阅读理解困难题
Heart disease is one of the major killers in the world today. Many who suffer from it must have heart transplants (移植). However, it’s difficult to get a suitable heart donation, and even if a patient survives the wait, his or her body often rejects (排斥) 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 (血管), chambers (心室) 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 (拇指). And, although it can contract (收缩) like a muscle, it cannot pump out blood like a real one. At present, the heart prototype (样品) 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 (脂肪组织) into human heart tissue with stem cell (干细胞) 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 (个性化的) 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 is the 3D-printed heart important?
A.It will be used on a patient.
B.It is the first 3D-printed heart.
C.It will replace a heart donation.
D.It has a complete heart structure.
2.What problem do 3D-printed hearts have?
A.They cost too much. B.They are too small.
C.They can’t contract. D.They are hard to produce.
3.Why would there be less risk of organ rejection with the 3D-printed heart?
A.It would be made with stem cell technology.
B.It would be made from human fat tissue.
C.It would come from a patient’s body.
D.It would be printed according to the patient’s condition.
4.What attitude does Tal Dvir hold toward the future of 3D printing of organs?
A.Confident. B.Doubtful.
C.Worried. D.Confused.
高一英语阅读理解困难题查看答案及解析
Cancer is among the top killer diseases in our society today and scientists have found out that stress（紧张） helps to bring it on．It is worthwhile to consider, therefore, what are the causes of stress in our life, and whether we can do anything about them．
Are we underemployed, or overburdened with too many responsibilities? Do we have a right balance of work and leisure（闲暇） in our lives? Are our relationships with family, friends or fellow workers all they should be?
All these things can be a cause of stress, and it is best to face them honestly, and bring our frustrations（沮丧，挫败） into the open．People who have a good row and then forget it are doing their health better than shoes who bottle up their feelings．[
If our self-examination has brought any causes of stress to light, let us consider what we can do about them．It is possible to change jobs．We can make more leisure and fill it more happily, if we will accept a different living standard．We can improve our personal relationships by a different attitude．It is we who allow other people to make ourselves unhappy．Often the little things that disturb us are not worth an hour’s anger．The teaching in the Bible “Don’t let the sun go down upon your wrath（愤怒）” is good advice from the health point of view as well as the religions（宗教，信仰）．
1.Which of the following statement is TRUE?
A．Freedom from responsibilities helps relieve（减轻）stress．
B．Stress is the direct cause of cancer．
C．The cause of stress are worthy of serious study．
D．Cancer is the number one killer in our society today．
2.According to the text, which of the following people is more likely to suffer from stress?
A．People who have cancer．
B．People who like to quarrel with others．
C．People whose living standard is low．
D．People who have more responsibilities than they can handle．
3.The word “row” in the third paragraph most probably means ．
A．a noisy quarrel
B．a very loud noise
C．a neat line of things side by side
D．a journey in a boat
4.Which of the following is NOT mentioned as a way to reduce our stress?
A．Changing our jobs．
B．Changing our attitude about little things that make us unhappy．
C．Speaking out about our frustrations．
D．Reading the Bible．
高一英语阅读理解中等难度题查看答案及解析
Cancer is among the top killer diseases in our society today and scientists have found out that stress(紧张) helps to bring it on. It is worthwhile to consider, therefore, what are the causes of stress in our life, and whether we can do anything about them.
Are we underemployed, or overburdened with too many responsibilities? Do we have a right balance of work and leisure(闲暇) in our lives? Are our relationships with family, friends or fellow workers all they should be?
All these things can be a cause of stress, and it is best to face them honestly, and bring our frustrations(沮丧，挫败) into the open. People who have a good row and then forget it are doing their health better than shoes who bottle up their feelings.
If our self-examination has brought any causes of stress to light, let us consider what we can do about them. It is possible to change jobs. We can make more leisure and fill it more happily, if we will accept a different living standard. We can improve our personal relationships by a different attitude. It is we who allow other people to make ourselves unhappy. Often the little things that disturb us are not worth an hour’s anger. The teaching in the Bible “Don’t let the sun go down upon your wrath(愤怒)” is good advice from the health point of view as well as the religions(宗教，信仰).
65. Which of the following statement is TRUE?
A. Freedom from responsibilities helps relieve(减轻) stress.
B. Stress is the direct cause of cancer.
C. The cause of stress are worthy of serious study.
D. Cancer is the number one killer in our society today.
66. According to the text, which of the following people is more likely to suffer from stress?
A. People who have cancer.
B. People who like to quarrel with others.
C. People whose living standard is low.
D. People who have more responsibilities than they can handle.
67.The word “row” in the third paragraph most probably means .
A. a noisy quarrel B. a very loud noise
C. a neat line of things side by side D. a journey in a boat
68. Which of the following is NOT mentioned as a way to reduce our stress?
A. Changing our jobs.
B. Changing our attitude about little things that make us unhappy.
C. Speaking out about our frustrations.
D. Reading the Bible.
C DAD
高一英语阅读理解简单题查看答案及解析
Smoking is one of the ______ of heart disease and it kills lots of people every year.
A. causes B. reasons C. excuses D. results
高一英语单项填空简单题查看答案及解析
Heart disease is the most common cause of death in the United States. Over a million people each year will have a heart attack and 25% will die before they get to the hospital or in the Emergency Department. _1_ Prevention is the best way so it does not damage your heart and limit your ability to enjoy life. Simple ways might help reduce your risk:
Don’t smoke
This means that you should stop smoking as soon as possible if you already smoke, and if you live with a smoker , you should put limits on the smoker. _2_
Get moving
__3_ Find a form of exercise you enjoy enough to want to do it regularly and stick to it. If you have health issues that limit exercise, see your doctor for suggestions and make sure you begin with a program that will not be too challenging for you to keep with it.
__4__
Make sure you follow a heart prevention diet, even if you don’t have any symptoms (症状) of heart disease. _5_ You should eat a high-fiber, low-fat diet rich in fruits, vegetables and whole grains. Meats should be lean (瘦的)，and fats should be limited to heart healthy fats such as olive oil. Sugars and processed foods should be limited, and fruits and vegetables should make up a large part of your daily meals.
| A．Eat healthy foods |
| B．Manage your weight |
| C．A heart attack is a very frightening event. |
| D．The key is to prevent the disease before it starts |
E. It’s best if you can get in 30 minutes a day of exercise.
F. If you feel any of these heart attack symptoms, do not ignore.
G. If you haven’t started smoking, be sure never to start this habit.
高一英语信息匹配中等难度题查看答案及解析
Heart disease is the most common cause of death in the United States. Over a million people each year will have a heart attack and 25% will die before they get to the hospital or in the Emergency Department.1.Prevention is the best way so it does not damage your heart and limit your ability to enjoy life. Simple ways might help reduce your risk:
Don’t smoke
This means that you should stop smoking as soon as possible if you already smoke, and if you live with a smoker , you should put limits on the smoker.2.
Get moving
3.Find a form of exercise you enjoy enough to want to do it regularly and stick to it. If you have health issues that limit exercise, see your doctor for suggestions and make sure you begin with a program that will not be too challenging for you to keep with it.
4.
Make sure you follow a heart prevention diet, even if you don’t have any symptoms (症状) of heart disease.5.You should eat a high-fiber, low-fat diet rich in fruits, vegetables and whole grains. Meats should be lean (瘦的)，and fats should be limited to heart healthy fats such as olive oil. Sugars and processed foods should be limited, and fruits and vegetables should make up a large part of your daily meals.
A. Eat healthy foods
B. Manage your weight
C. A heart attack is a very frightening event.
D. The key is to prevent the disease before it starts
E. It’s best if you can get in 30 minutes a day of exercise.
F. If you feel any of these heart attack symptoms, do not ignore.
G. If you haven’t started smoking, be sure never to start this habit.
高一英语七选五困难题查看答案及解析
Heart disease is the leading cause of death in the United States, _____ a research report.
A.according to B.because of
C.thanks to D.instead of
高一英语单项填空中等难度题查看答案及解析
It’s one of the world’s largest chains of golf shops, ______in the heart of Shanghai.
A. locate B. located C. locating D. to locate
高一英语单项填空中等难度题查看答案及解析
Glaucoma（青光眼）is a major cause of blindness around the world, especially in developing countries. The World Health Organization says glaucoma is a greater public health challenge than cataracts（白内障）, because the blindness caused by the latter can be cured after operations.
Glaucoma is a disease that makes people around the world lose their sight, and they usually don’t even know they have the disease until it has permanently destroyed at least 40 percent of their sight. The process is usually so painless and subtle（不明显的）, so people don't notice it. Actually, the simplest medical test can discover it.
“It is the leading cause of blindness in the United States. In Hispanics and in African-Americans, it’s the second leading cause of blindness and so is the case in the Chinese and Indians.” said Dr. Alan Robin, a specialist in treating glaucoma. “The glaucoma we see in sub-Saharan Africa is a much more aggressive blinding disease than the glaucoma we see in Americans or even African- Americans in-the United States.” he said． ．
Dr. Eric Fleischer also sees these differences at Medstar Washington Hospital Center. “Pretty much anybody who has ancestors in Africa has an increased chance of developing glaucoma.” Age is another thing that may lead to glaucoma, although people of all ages can get it.
Glaucoma is a group of diseases that commonly produce pressure in the eye. An eye is sort of like a watch. And behind the face of the watch, liquid is made. It goes through your pupil（瞳孔）and into the front of the watch between the face and the crystal．There's an area around the edge of the watch that drains（使排出）the liquid. When that drain is blocked, the liquid can't leave the eye as fast as it is produced. The rising pressure within the eye damages and eventually kills the optic（视觉的） nerve. The result is blindness.
Fortunately, if caught early, glaucoma can be controlled. Glaucoma is not curable. But as researchers worldwide lean more about it, they grow more hopeful that glaucoma can one day be cured or even prevented.
1.In which country is glaucoma the biggest danger to people’s sight?
A．In China B．In India C．In the USA D．In Japan
2.What do the underlined words “these differences”（in Para 4 ）refer to?
A．The differences in regions（地区） B．The cultural differences
C．The differences in age D．The physical differences
3.From the passage, we can learn that, ________.
A．It is hard for medical tests to discover glaucoma
B．People in developed countries hardly develop glaucoma
C．Glaucoma only causes blindness among old people
D．The research on glaucoma is still going on worldwide
高一英语阅读理解中等难度题查看答案及解析
Protecting wildlife has become a tough problem in today’s world. As one of the effort, many countries formulate(制定) related laws to protect wildlife. The need for such protection was realized centuries ago in India.
About 300 BC an India writer described forests that were somewhat like national parks today. The game of killing animals was carefully controlled. Some animals that became dangerous to human visitors were trapped or killed outside the park.
The need for wildlife protection is greater now than ever before. About a thousand kinds of animals are in danger of extinction(灭绝), and the speed at which they are being destroyed has been increasing. With mammals(哺乳动物), for example, the speed of extinction is now about one kind every year. From AD 1 to 1800, the speed was about one kind every fifty years. Everywhere, men are trying to solve the problem of saving wildlife while caring for the world’s growing population(人口).
1.“Protect wildlife” means ______.
A.保护野生动物 B.保护每一个生命
C.猎杀野生动物 D.关爱野生动物
2.The reporter says that the need for protecting wildlife ______.
A.was understood in India centuries ago
B.was described by an India writer about 3,300 years ago
C.is not met in many centuries ago
D.is not carried out in the forests as well as in national parks
3.The reporter says that in India forests of long ages, ______.
A.hunters were given permits to hunt games
B.all animals were to be killed
C.the game of killing animals was controlled
D.no killing of animals was allowed
4.According to the report, men trying to save wildlife are thinking about ______ as well.
A.the animals in national parks B.stricter laws against hunting
C.the trees in the forests D.the growth of the population
高一英语阅读理解简单题查看答案及解析