Spending two or three hours playing outdoors each day can reduce the chance of becoming short-sighted, a research shows. It challenges the belief(信念) that short-sightedness is caused by computer use, watching TV or reading in weak light.
The Australian government researchers believe that the sunlight is good for people’s eyes. They compared the vision(视力) and habits of 100 seven-year-old children in Singapore and Australia. In all, 30% of the Singaporean children were short-sighted—this rate(比率) was ten times higher than Australian children.
Both groups spend a similar amount(数量) of time reading, watching television and playing computer games. However the Singaporean children spent an average (平均) of only half an hour a day outdoors—90 minutes less than the Australian children.
Professor Ian Morgan, from the Australian Research Council’s vision Centre, said, “Humans are naturally long-sighted, but when people begin to go to school and spend little or no time outdoors, the number of short-sighted people gets larger. We’re also seeing more and more short-sighted children in cities all around the world and the main reason may be that city children spend less time outdoors.
Daylight can be hundreds of times brighter than indoor light. But why does playing outside prevent us from becoming short-sighted? Scientists believe that natural light has a special chemical(化学物质) which stops the eyeball from growing out of shape and prevents people from becoming short-sighted.
So be outdoors. It doesn’t matter if that time is spent having a picnic or having sports.
1. How much time did the Australian children spend outdoors on average accordingto the
research?
A. 30 minutes. B. 60 minutes.
C. 90 minutes. D. 120 minutes.
2.Which of the following is TRUE according to the passage?
A. If people spend less time outdoors they will certainly become short-sighted.
B. There are fewer short-sighted Singaporean Children than Australian children because they have more know ledge of protecting their eyesight.
C. There will be fewer risks of getting short-sighted if people spend two or three hours a day playing out side.
D. When people begin to go to school they will become long-sighted.
3.What is the fifth paragraph mainly about?
A. Why natural daylight has a special chemical.
B. Why daylight prevents people from becoming short-sighted.
C. Why daylight is much brighter than indoor light.
D. What the special chemical which can stop eyeballs from growing out of shape is.
My class and I visited Chris Care Center in Phoenix, Arizona to comfort the old people who needed a little cheering up during the holiday season.
The first two there were for persons requiring help in taking care of themselves. We sang beautifully for them. They loved our sweet songs and the flowers that we left with them.
As we were singing on the third floor for old people with Alzheimer(老年痴呆症), most of them looked off at the walls or floor. However, one lady my eye. She was sitting by the door, in a wheelchair, singing songs to herself. They weren’t the songs that we were singing, at least they didn’t like that. As we got with each song, she did as well. The louder we got, the louder she got. she was singing, she was also reaching out to us with her hands and body. I knew that I should have gone over to her, but I thought that my responsibilities(责任) were to my students. People who worked at the care center could attend to her, I thought. Just when I stopped feeling about not giving her the attention she needed, one of my students, Justin, showed me what the holiday season is really about.
Justin also the same lady. The difference between us is that he acted on her needs, but I didn’t. During the last song,Silent Night, Justin walked over to her and held her hand. He looked this aged lady in her eyes and with his actions said, “You are important, and I will take my to let you know that.”
This tired, elderly lady stopped singing and held his hand. Then she touched his cheek with the other hand. Tears began to fall down her face. No words can completely describe that touching moment.
It took a boy to teach me, a man, about kindness and love. Justin’s example of a complete, selfless attitude(态度) toward another was a that I will never forget. He was the teacher that day, and I consider myself to have witnessed(目击) his lesson.
1.A. rooms B. buildings C. floors D. groups
2.A. looked B. caught C. ran D. hurt
3.A. appear B. hear C. sound D. feel
4.A. louder B. nearer C. faster D. higher
5.A. Because B. As C. Since D. Though
6.A. afraid B. sure C. sorry D. happy
7.A. feared B. avoided C. helped D. noticed
8.A. time B. flower C. body D. face
9.A. message B. lesson C. activity D. class
10.A. clever B. foolish C. right D. lucky
—Can I get you a cup of coffee, Mr Green?
—________.
A. Thank you for the tea B. It’s nice of you
C. With pleasure D. It’s my pleasure
—You made so many spelling mistakes again, Mary. You won’t learn English well if your spelling______
— Sorry, Mr Wu. I will be more careful.
A. won’t be paid attention B. isn’t paid attention to
C. doesn’t pay attention to D. isn’t paid attention
—I am afraid I will have to give up Chinese chess. I have made ______ in the past few years.
— You’d better not. It takes time and patience, you know.
A.great progresses B. much progress
C. few progresses D. little progress
Do you know if he________tomorrow?
A. will come, B. comes C. came D.come
