题目列表(包括答案和解析)
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.”
【小题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. |
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. |
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. |
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. |
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.
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 (拉抻)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 Asia9 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."
47. 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.
48. 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.
49. 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.
50. 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.
Anne responded on May 20, 2009 Julie, most of us are never going to achieve the heights you did as the CEO of a company.I just want to say that I was so touched by your transparency (坦诚).I haven’t been attacked publicly ever like you, but I’ve suffered from depression—just recently in fact.It helps a lot to hear personal stories, and it helped to read how you might have handled things differently. |
Nancy responded on May 21, 2009 Something in Julie drew her to artwork during a very dark time in her journey.And later she stated that it’s beauty that keeps her going.Beauty and creativity can be very powerful in our lives.And it doesn’t surprise me that Julie was drawn to these naturally.Anne, maybe the artistic kinds of activities Julie used will support you well as you move beyond the depressive feelings you’re dealing with. |
Anne responded on June 4, 2009 Nancy, thanks so much for taking the time to offer some great ideas for using creativity to help with depression.Actually during this time I’ve found that my creative work has been the one thing that’s brought me a lot of joy. |
Julie responded on June 2, 2009 Nancy, thank you for your insights (深刻见解).Warmly, Julie. |
Chris responded on May 31, 2009 I don’t normally comment on blogs, but this was a very insightful and transparent post (帖子).I could really feel that you were open and honest about everything you wrote about.Thanks for sharing and good luck with everything that you do. |
Julie responded on June 9, 2009 Thanks, Chris. |
Wendy responded on May 30, 2009 Julie, everything you shared here is inspiring.Thank you for having the courage to be so open.I love what you’re doing here.Keep it up! |
Julie responded on May 31, 2009 Thank you, Wendy. |
1.The above posts center on a blog passage written by ______.
A.Wendy B.Julie C.Anne D.Nancy
2.Nancy and Anne share the opinion that______.
A.work can bring joy to people B.creativity may help reduce depression
C.beauty is the most important in life D.different people handle things differently
3.Which of the following about Julie is NOT true?
A.Julie is the CEO of a company.
B.Julie was once attracted to artwork.
C.Julie has never been attacked publicly.
D.Julie was honest about her past experiences.
|
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com