题目列表(包括答案和解析)
Eye doctors in Shanghai found out that the nearsightedness among primary and middle school students has something to do with the colour of the paper in their textbooks and notebooks.
The doctors suggested that yellow paper will be used to replace the white one.According to
their research,the experts found out white paper reflects too much light and easily tires a person’s eyes.The yellow paper,however,doesn’t look so sharp to a person’s eyes.In other words,it is much milder to the eyes of students who may do reading or writing for hours.
The experts’research findings were based on first.hand information and a number of scientific experiments including a new study among the students from forty-one middle schools.To make the students understand the truth,Shanghai Education Development Co.Ltd.has produced textbooks and exercise.books made of yellow paper.The books will be used in the whole city soon.
( )49.What does the word“replace”here mean in Chinese?
A.放置 B.重置 C.替代 D.发生
( )50.The doctors found out_________ caused the students’nearsightedness.
A.their studies have B.the colour of the paper has
C.the textbooks and notebooks have D.the colour of their clothes has
( )51.Why does white paper easily make our eyes tired?
A.Because white paper reflects too much light.
B.Because white paper gets in too much light.
C.Because white paper is always shining.
D.Because white paper is too bright.
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Napping(小睡) after learning something new could help improve your memory--- as long as you dream, scientists say.
They found people who dream about a new task do it better on waking than those who do not sleep or do not dream.
Volunteers were asked to learn the layout(布局,设计) of a 3D computer maze(迷宫) so they could find their way several hours later. Those allowed to take a pap and who also remembered dreaming of the task, found their way to a landmark quicker.
The researchers think the dreams are a sign that unconscious(无意识的) parts of the brain are working hard to process information about the task..
Dr. Robert Stickgold of Harvard Medical School, said dreams may be a marker that the brain is working on the same problem at many levels.
Study tips
Co-author Dr. Erin Wamsley said the study suggests our non-conscious brain works on the things that it deem(认为) are the most important.
“Every day we are gathering lots of information and new experiences,” she said. “It would seem that our dreams are asking the question, “How do I use this information to inform(影响) my life?”
The scientists say there may be ways to use this phenomenon(现象) for improving learning and memory. For example, students might be better studying hard before bedtime, or taking a nap after a period of afternoon study.
57. Scientists say ______ could help improve your memory.
A. dream B. nap C. nap and dream D. nap without dream
58. What were volunteers asked to do?
A. Take a nap. B. Dream a task. C. Learn about 3D computer. D. Find their way out of a maze.
59.Which is right about dreams?
A. They are a sign that parts of the brain is unconscious.
B. They can help us fall asleep and improve learning and memory.
C. They tell us how to use this information to inform our life.
D. They may be a marker that the brain is working on the same problem.
60. When is the best time for study?
A. Before bedtime. B. After bedtime. C. Before taking a nap. D. In the afternoon.
Eye doctors in Shanghai found out recently that the nearsightedness
(近视)among primary and middle school students has something to do with the color of the paper in their textbooks and notebooks.The doctors suggested that yellow paper should be used to replace the white one.
According to their research the experts found out white paper reflects
(反射)too much light and easily tires a person's eyes. The yellow paper, however, doesn't look so sharp to a person's eyes. In other words, it is much milder to the eyes of students who may do reading or writing for hours.The experts' research finding were based on first -hand information and a number of scientific experiments
(实验)including a recent study among the students from forty-one middle schools. To make the students understand the truth, Shanghai Education Development Co. Ltd has produced textbooks and exercise-books made of yellow paper. The books will be used in the whole city soon.根据短文内容判断正误(正确的填“T”,错误的填“F”)
(1) The passage mainly wants to tell us yellow color is helpful to students' eyes.
( )
(2) According to the research, the students' nearsightedness has something to do with the yellow paper in their books.
( )
(3) The result of the experts' research is found in the teachers' eyes.
( )
(4) From the passage we can know that the backward of white paper is heavier than that of yellow.
( )
(5) The textbooks and exercise - books made of yellow paper have been used all over Shanghai.
( )
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