Up to 90% of school leavers in major Asian cities are suffering from myopia ---short-sightedness, a study suggests. Researchers say the "extraordinary rise" in the problem is being caused by students working very hard in school and missing out on outdoor light.
Eye experts say that you are short-sighted if your vision is blurred(模糊的) beyond 2m. It is often caused by an elongation(拉伸) of the eyeball that happens when people are young. According to the research, the problem is being caused by a combination of factors - a commitment to education and lack of outdoor light.
Professor Morgan who led this study argues that many children in South East Asia spend long hours studying at school and doing their homework. This in itself puts pressure on the eyes, but exposure to between two and three hours of daylight helps maintain healthy eyes.
Cultural factors also seem to play a part. Across many parts of South East Asia, children often have a lunchtime nap. According to Professor Morgan they are missing out on natural light to prevent short-sightedness.
A big concern is the numbers of the students suffering from “high” myopia. One in five of these students could experience severe visual impairment(障碍) and even blindness. These people are at considerable risk—sometimes people are not told about it and are just given more powerful glasses—they need to be warned about the risk and given some self-testing measures so they can get to an ophthalmologist and get some help.
For decades, researchers believed there was a strong genetic component to the condition. But this study strongly suggests an alternative view. “Any type of simple genetic explanation just doesn’t fit with that speed of change; gene pools just don’t change in two generations. Whether it’s a purely environmental effect or an environmental effect playing a sensitive genome, it really doesn’t matter, the thing that’s changed is not the gene pool---it’s the environment.”
1.As is mentioned above, which factor mainly results in students’ myopia in South East Asia?
A.Genetic faults of the people. B.Elongation of the eyeball.
C.The shortage of outdoor light. D.Lack of research into the problem.
2.Which of the following statements do you think agrees with Professor Morgan?
A.A lunchtime nap is helpful in reducing myopia.
B.Glasses keep myopia from getting even worse.
C.It’s necessary to treat myopia with an operation.
D.It’s of vital importance to reduce educational pressure.
3.What’s the main idea of the last paragraph?
A.Gene remains the main cause of the long-standing problem.
B.The environment is to blame for the extraordinary rise in myopia.
C.Short-sightedness has nothing to do with changes in gene pools.
D.An environmental effect playing a sensitive genome counts.
4.What’s the best way to take care of your eyes according to the passage?
A.Equip the classroom with better lights.
B.Look at the sun from time to time.
C.Do eyes exercise regularly.
D.Spend more time in the open air.
高二英语阅读理解中等难度题
Up to 90% of school leavers in major Asian cities are suffering from myopia ---short-sightedness, a study suggests. Researchers say the "extraordinary rise" in the problem is being caused by students working very hard in school and missing out on outdoor light.
Eye experts say that you are short-sighted if your vision is blurred(模糊的) beyond 2m. It is often caused by an elongation(拉伸) of the eyeball that happens when people are young. According to the research, the problem is being caused by a combination of factors - a commitment to education and lack of outdoor light.
Professor Morgan who led this study argues that many children in South East Asia spend long hours studying at school and doing their homework. This in itself puts pressure on the eyes, but exposure to between two and three hours of daylight helps maintain healthy eyes.
Cultural factors also seem to play a part. Across many parts of South East Asia, children often have a lunchtime nap. According to Professor Morgan they are missing out on natural light to prevent short-sightedness.
A big concern is the numbers of the students suffering from “high” myopia. One in five of these students could experience severe visual impairment(障碍) and even blindness. These people are at considerable risk—sometimes people are not told about it and are just given more powerful glasses—they need to be warned about the risk and given some self-testing measures so they can get to an ophthalmologist and get some help.
For decades, researchers believed there was a strong genetic component to the condition. But this study strongly suggests an alternative view. “Any type of simple genetic explanation just doesn’t fit with that speed of change; gene pools just don’t change in two generations. Whether it’s a purely environmental effect or an environmental effect playing a sensitive genome, it really doesn’t matter, the thing that’s changed is not the gene pool---it’s the environment.”
1.As is mentioned above, which factor mainly results in students’ myopia in South East Asia?
A.Genetic faults of the people. B.Elongation of the eyeball.
C.The shortage of outdoor light. D.Lack of research into the problem.
2.Which of the following statements do you think agrees with Professor Morgan?
A.A lunchtime nap is helpful in reducing myopia.
B.Glasses keep myopia from getting even worse.
C.It’s necessary to treat myopia with an operation.
D.It’s of vital importance to reduce educational pressure.
3.What’s the main idea of the last paragraph?
A.Gene remains the main cause of the long-standing problem.
B.The environment is to blame for the extraordinary rise in myopia.
C.Short-sightedness has nothing to do with changes in gene pools.
D.An environmental effect playing a sensitive genome counts.
4.What’s the best way to take care of your eyes according to the passage?
A.Equip the classroom with better lights.
B.Look at the sun from time to time.
C.Do eyes exercise regularly.
D.Spend more time in the open air.
高二英语阅读理解中等难度题查看答案及解析
In American schools where students are trained to be creative, some Asian students fail to ______ the creativity they’ve developed and take tutoring classes to raise their points on SAT.
A. take notice of B. take advantage of
C. take up D. take over
高二英语单项填空中等难度题查看答案及解析
The need to do what majority of us are doing forces us to take up activities which we ________ otherwise.
A. won’t B. wouldn’t C. should D. might
高二英语单项填空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
_______seems to have been a strong competition in China for school leavers to enter college or university.
A.It B.There C.Here D.That
高二英语单项填空简单题查看答案及解析
For high school leavers starting out in the working world, it is very important to learn particular skills and practice how to behave in an interview or how to find all internship(实习). In some countries, schools have programs to help students onto the path to work. In the United States, however, such programs are still few and far between.
Research shows that if high schools provide career-related courses, students are likely to get higher earnings in later years. The students are more likely to stay in school, graduate and go on to higher education.
In Germany, students as young as 13 and 14 are expected to do internships. German companies work with schools to make sure that young people get the education they need for future employment.
But in America, education reform programs focus on how well students do in exams instead of bringing them into contact with the working world. Harvard Education school professor Robert Schwartz has criticized (批评)education reformers for trying to place all graduates directly on the four-year college track. Schwartz argued that this approach leaves the country’s most vulnerable(易受影响的)kids with no jobs and no skills.
Schwartz believed that the best career programs encourage kids to go for higher education while also teaching them valuable practical skills at high school. James Madison High School in New York, for example, encourages students to choose classes on career-based courses. The school then helps them gain on-the-job experience in those fields while they’re still at high school.
However, even for teens whose schools encourage them to connect with work, the job market is daunting. In the US, unemployment rates for 16-to 19-year-olds are above 20 percent for the third summer in a row. “The risk is that if teenagers miss out on the summer job experience, they become part of this generation of teens who had trouble in landing a job,” said Michael, a researcher in the US.
1.What’s the main idea of the text?
A.The lack of career-based courses in US high schools.
B.Tips on finding jobs for high school leavers.
C.Arguments about recent US education reform.
D.Advice for American high school leavers.
2.According to Robert Schwartz, _________.
A.there is no need for kids to go for higher education in the US
B.students should get contact with the working world at high school
C.education reform should focus on students’ performance in exams
D.teenagers in the US can’t miss out on the summer job experience
3.The underlined word “daunting” in Paragraph 6 most probably means __________.
A.creative B.interesting C.discouraging D.unbearable
4.What can be inferred from the text?
A.High school leavers with no practical skills can’t find a job at all.
B.Students with career-based courses never have problems finding a job.
C.US companies work with schools to prepare young people for future employment.
D.Unemployment rates for US teenagers remain high at the moment.
高二英语阅读理解中等难度题查看答案及解析
For high school leavers starting out in the working world,it is very important to learn particular skills and practice how to behave in an interview or how to find all internship(实习).In some countries,schools have programs to help students onto the path to work.In the Unites States,however,such programs are still few and far between.
Research shows that if high schools provide career-related courses,students are likely to get higher earnings in later years.The students are more likely to stay in school,graduate and go on to higher education.
In Germany,students as young as 13 and 14 are expected to do internships.German companies work with schools to make sure that young people get the education they need for future employment.
But in America, education reform programs focus on how well students do in exams instead of bringing them into contact with the working world.Harvard Education school professor Robert Schwartz has criticized education reformers for trying to place all graduates directly on the four-year college track.Schwartz argued that this approach leaves the country’s most vulnerable(易受影响的)kids with no jobs and no skills.
Schwartz believed that the best career programs encourage kids to go for higher education while also teaching them valuable practical skills at high school.James Madison High School in New York,for example,encourages students to choose classes on career—based courses.The school then helps them gain on—the-job experience in those fields while they’re still at high school.
However,even for teens whose schools encourage them to connect with work,the job market is daunting.In the US,unemployment rates for 16-to 19-year-olds are above 20 percent for the third summer in a row.
“The risk is that if teenagers miss out on the Summer job experience,they become part of this generation of teens who had trouble in landing a job,”said Michael,a researcher in the US.
1.In the author’s opinion, American high school leavers__________.
A.have enough career-related courses |
B.need more career advice from their schools |
C.perform better in exams than German students |
D.can get higher earnings in later years |
2.According to Robert Schwartz,_________.
A.there is no need for kids to go for higher education in the US |
B.students should get contact with the working world at high school |
C.education reform should focus on students’ performance in exams |
D.teenagers in the US can’t miss out on the summer job experience |
3.What can be inferred from the text?
A.Unemployment rates for US teenagers remain high at the moment. |
B.Students with career—based courses never have problems finding a job. |
C.US companies work with schools to prepare young people for future employment. |
D.High school leavers with no practical skills can’t find a job absolutely |
4.What’s the main idea of the text?
A.Arguments about recent US education reform. |
B.Tips on finding jobs for high school leavers. |
C.The lack of career—based courses in US high schools. |
D.Advice for American high school leavers. |
5.The underlined word “daunting” in Paragraph 6 most probably means___________.
A.discouraging | B.interesting |
C.creative | D.unbearable |
高二英语阅读理解极难题查看答案及解析
High school plays a major role in shaping up your future and your whole development. extracurricular
(课外的) activities along with the studies can be very helpful. Make yourself take part in various activities and at the same time try to stand out in your studies. When you move out to college these efforts that you put in may count for a lot.
High school is not just about books or classes. Schools always provide opportunities for students to socialize (社交). There are various group tasks designed which allow the students to learn to work together.
High school is the right time for you to discover yourself and bring out some of your hidden talents. In your lessons, you may find that you are better at English than you were earlier or have grown an interest for Math. High school also provides many other opportunities for students to take part in. These help develop leadership skills and management skills at an early age, which in turn is a way of preparing students to manage and plan their careers (事业) better.
Balancing all activities is an experience in time management. If you have taken up a part-time job along with your high school you would have to arrange your time for studies, and extracurricular activities. Such management can go a long way in teaching you to manage things better when you take up a job. Moreover, they help build your character. You would be better prepared for additional stress that you may feel sometimes.
When at high school you should pick up your classes wisely. Depending upon what you like and your career plan you should choose suitable classes. Doing something that you hardly like may get you very low grades as well as lose valuable time. Take up interesting and challenging classes that would allow you to put in those extra efforts.
1.What does the author advise us to do at high school?
A. To devote all of our time to learning our lessons.
B. To try to get full marks in the final examinations.
C. To learn our lessons well and socialize frequently.
D. To make good friends as many as possible.
2.The author considers high school the time for us to .
A. take up more part-time jobs.
B. develop our qualities that exist
C. plan our careers better
D. take up more sports outdoors
3.What is the author's attitude towards a part-time job at high school?
A. Supportive. B. Negative. C. Active. D. Doubtful.
4.At high school we ought to choose courses that .
A. have a good future B. we know little about
C. we are good at D. we take interest in
高二英语阅读理解中等难度题查看答案及解析
( C )
In Denmark, parents are allowed to set up a new school if they are dissatisfied with the school in the area where they are living. Although these schools have to follow the national courses, they are allowed a lot of choice in deciding what to teach. Some of these new schools are called “small schools” because usually the number of pupils in them is only sixty, but a school has to have at least twenty-seven pupils.
Cooleenbridge School in Ireland, is a small school similar to the ones in Denmark, it was set up by parents who came from Holland, Germany, Czechoslovakia, England and other parts of Ireland. They came because they wanted to live in the countryside and to grow their own food. In June 1986, they decided to start a school. They managed to get an old, disused primary-school (小学) building and started with twenty-four children aged from four to twelve.
The teachers say, “The important thing in school is doing, not sitting.” And so the courses includes yoga(瑜伽), cooking, knitting, kite-making, music, fishing, drama (戏剧) and environmental(环境的) river studies, as well as reading, writing, maths and science.
1.What are the rules for setting up a new school in Denmark?
A.Parents are allowed to set up their own school.
B.The school has to follow the national courses.
C.The school has to have at least 27 pupils.
D.All of the above.
2. The writer tells about the Cooleenbridge School in Ireland because ____ .
A.it was set up by parents who are not people of Denmark
B.it was taken as an example of this kind of “small school”
C.there were only twenty-four children
D.the pupils there were aged from 4 to 12
3.What makes this kind of school special?
A.It is set up by parents not by government.
B.It is free to decide what to teach.
C.The number of pupils in it is only sixty.
D.It has to have at least 27 pupils.
4. “The important thing in school is doing not sitting.” What the teachers say actually means ____ .
A.What we should do is teaching in the classroom, not sitting in the office.
B.Children should do more homework at home, not just sit in class to listen to the teachers.
C.Children should learn by themselves not rely on teachers.
D.Children should learn through practice not just from books.
5.The courses includes ____ .
A.yoga, cooking, knitting, kite-making, music, fishing, drama and environmental river studies, except reading, writing, maths and science
B.either yoga, cooking, knitting, kite-making, music, fishing, drama and environmental river studies, or reading, writing, maths and science
C.not only reading, writing, maths and science, but also yoga, cooking knitting, kitemaking, music, fishing, drama and environmental river studies
D.mainly yoga, cooking, knitting, kite-making, music, fishing, drama and environmental river studies, and supplemental (补充的) reading writing, maths and science
高二英语阅读理解中等难度题查看答案及解析
Bushwick is a tough place to grow up. This part of Brooklyn, in New York City, has a lot of crime. More than half of its 100,000 residents rely on aid from the government. Only 50% of students at Bushwick High School graduate in four years.
Some people might say, “We should help these poor kids who have so many challenges.” But Malaak Compton-Rock looks at the teens in Bushwick and says, “ Go to help kids who have even bigger challenges than you do.” She believes that once young people see the power they have to make things better, they can handle their own problems more easily. So her service group, the Angel Rock Project, took 30 Bushwick kids to Soweto, in South Africa, to help poor families there. Soweto is a township outside the city of Johannesburg. The effort, called Journey for Change, aims to show that any kid can change the world.
“Kids in Bushwick face pressure to drop out of school or become involved in gangs and drugs.” Says Compton-Rock. “We want them to live a life of purpose and service.”
In Soweto, many parents have died of AIDS, a deadly disease. When that happens, a grandparent or a child must lead the family. The Bushwick volunteers helped such families. They tended vegetable gardens, cared for babies and bought groceries.
“The saddest thing was when we visited an orphanage (孤儿院) and I helped a little boy who had been abandoned because he had HIV, the virus that causes AIDS,” says Queen Clyde, 12. “It‘s been good to be on this trip. But what’s also important is what we do when it’s finished. That’s what counts.” “ I never appreciated what I had until I saw some people who had nothing,” says Sadara Lewis, 12 “It’s really changed my attitude. I want to make a difference.”
The trip was two weeks long. But the kids, aged 12 to 15, will spend all year speaking about their experience, fund-raising and more.
1.What’s the main idea of the first paragraph?
A.Bushwick is the poorest place in New York City.
B.Bushwick still needs more care from the government.
C.It is children who suffer most in New York City.
D.Children in Bushwick are living in a bad situation.
2.In Compton-Rock’s opinion, the Bushwick kids __________.
A.have few challenges
B.should be kept out of schools
C.can learn to deal with their own problems by helping others
D.are living much better than people in Africa
3.Compared to Bushwick kids, some children in Soweto __________.
A.may have bigger challenges
B.receive no care from the government
C.are much more independent
D.are able to lead the family
4.According to the passage, “Journey for Change” can be best seen as the saying “________”.
A.God helps those who help themselves
B.saying and doing are two things
C.one stone kills two birds
D.a friend in need is a friend indeed
5.From the passage we know that __________.
A.there are few students in Bushwick High School
B.the trip to Soweto will have a long influence in spite of its short time.
C.most children are suffering from AIDS in Soweto
D.kids with HIV will be abandoned in Soweto
高二英语阅读理解中等难度题查看答案及解析