2.For better eyesight(视力),doctors advise limiting(限制) the hours of screen time and encourage having enough eye resting time.
However,another study shows that sitting in front of computer or TV screens for long hours is not the only reason for myopia(近视).An Australian research team studied young children in Sydney and Singapore to find the reasons for myopia.The research team found that there were less children who had myopia in Sydney than those 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 sports than those in Singapore.
Indoor and outdoor sports both make the eyes pay attention to more distant(远处的) objects,which stops the eyes from changing original shape.But outdoor sports may be better than indoor sports for myopia.Because natural light is good for eye growth and vitamin(维他命) D from the sunlight might be useful to it.Many doctors suggest that every child get its first eye test when he/she is about two and half years old,and even if his/her sight seems good enough.It is necessary for myopic(近视的) children to wear glasses to stop headaches,trouble reading and so on.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 examination 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.
71.What did the Australian research team study for?A.
A.To find the reasons for myopia.
B.To find the ways to treat myopia.
C.To learn to choose right glasses.
D.To improve children's eyesight.
72.Why are there fewer children with myopia in Sydney than those in Singapore?D.
A.Because the children in Sydney watch TV less.
B.Because the children in Sydney have more eye resting time.
C.Because the children in Sydney use computer less.
D.Because the children in Sydney do more outdoor sports.
73.What is good for eye growth according to the passage?C.
A.Natural light.B.Vitamin D.
C.Natural light and Vitamin D.D.The sun.
74.Which of the following is true?B.
A.Children should have eye tests as soon as they reach school age.
B.Looking more at distant objects can help the eyes keep their original shape.
C.Doing outdoor sports with no glasses is good for myopic children.
D.Children should limit their time in the sun to protect their eyes.
75.The passage mainly tells usC.
A.the children in Sydney spend more time in front of screens
B.the children in Singapore like outdoor sports
C.doing outdoor sports and limiting the hours of screen time are good for eyes
D.it's important to test students'eyes.
分析 短文讲了近视的原因有很多,为了让我们有个好的视力,建议减少看屏幕的时间,让眼睛有足够的休息时间.经常参加户外的运动并且看远处,并且定期的给眼睛做检查,这些都有利于保护我们的视力.
解答 答案:71.A 细节理解题.根据第二段第一行句子An Australian research team studied young children in Sydney and Singapore to find the reasons for myopia.澳大利亚的一个研究小组研究了年幼的孩子在悉尼和新加坡近视的原因,可知这一研究的目的就是研究近视的原因.故选A.
72.D 细节理解题.根据第二段第三行The major finding is that children in Sydney spend longer hours on outdoor activities than those in Singapore.主要发现是悉尼儿童在户外活动的时间比在新加坡的时间长.可知因为悉尼儿童在户外活动的时间长.故选D.
73.C 细节理解题.根据第三段的第二行句子Because natural light is good for eye growth and vitamin(维他命) D from the sunlight might be useful to it.因为自然光对眼睛的生长有好处,阳光下的维生素D可能对眼睛有益.可知自然光和维生素D对眼睛有益.故选C.
74.B 细节判断题.根据第四段第一行句子Indoor and outdoor sports activities both make the eyes focus on more distant objects,which prevents the eyes from changing shape.室内和室外的体育活动都使眼睛聚焦于远处的物体上,从而防止眼睛的形状改变.可知更多的看着远处的物体可以帮助眼睛保持原来的形状是正确的.故选B.
75.C 主旨归纳题.根据整篇文章内容及其第一段句子For better eyesight(视力),doctors advise limiting(限制) the hours of screen time and encourage having enough eye resting time.为了更好的视力,医生建议限制看屏幕的时间,并鼓励眼睛有足够的休息时间.可知文章告诉我们学生的眼睛休息是很重要的.故选C.
点评 在通读全文的基础上,根据全文大意,展开逻辑思维,瞻前顾后,认真观察选项,仔细推敲,确定最佳答案.