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For better eyesight,doctor advise to limit the hours of screen time and encourage having enough eye resting time.
Yet another study argues that sitting in front of computer or TV screens for long hours is not the only environmental cause of myopia(近視).An Australian research team compared the prevalence(流行) of and reasons for myopia among young children of Chinese origin in Sydney and Singapore.
The study concluded that the prevalence of myopia among children in Sydney was lower than children in Singapore,even though they spent more time in front of computer and TV screens.The major finding is that children in Sydney spend longer hours on outdoor activities than those in Singapore.
Indoor and outdoor sports activities both make the eyes focus on more distant objects,which prevents the eye from changing shape.But outdoor activities may better help escape myopia than indoor sports activities.
Jane Gwiazda,a psychologist from New England College of Optometry in Boston,US,who does research in sight problems,says,"Natural light does good to eye growth.And extra vitamin D from the sun might contribute to eye growth."
Many doctors suggest that every child get its first eye test done when he/she is about two and half years old,and even if his/her sight seems perfect.
It is necessary for myopic children to wear glasses to prevent headaches,trouble reading or injuries.It is also important that schools invite doctors to test their students'eyes.
If that is not possible,school teachers should at least encourage parents and children to have regular eye examinations and wear glasses.And parents should remember not only to limit the total screen time for their children,but also to encourage them to spend time outdoors.

(1)What's the aim of the study by the Australian research team?
A
A

A.To find the reasons for myopia
B.To find the ways to treat myopia
C.To prove the bad effects of myopia
D.To prove the prevalence of myopia
(2)Why are fewer children nearsighted in Sydney than in Singapore?
D
D

A.Because Sydney children watched less TV
B.Because Sydney children have read fewer books
C.Because Sydney children use less computers
D.Because Sydney children do more outdoor sports
(3)What conclusion can we draw from the text?
D
D

A.Sydney children don't study hard
B.Singapore children don't like sports
C.Indoor sports activities do little good to eyes
D.Natural light is better for eyes than room light
(4)Which of the following statements is NOT true?
A
A

A.Children needn't wear glasses when their myopia isn't serious
B.Both schools and parents should take care of children's eyes
C.Children's screen time should be limited
D.Children should have regular eye tests.

【考點】社會
【答案】A;D;D;A
【解答】
【點評】
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發(fā)布:2024/5/27 14:0:0組卷:3引用:1難度:0.7
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