2.For better eyesight(視力),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(近視).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(遠(yuǎn)處的) 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(維他命) 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(近視的) 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 短文講了近視的原因有很多,為了讓我們有個好的視力,建議減少看屏幕的時間,讓眼睛有足夠的休息時間.經(jīng)常參加戶外的運動并且看遠(yuǎn)處,并且定期的給眼睛做檢查,這些都有利于保護(hù)我們的視力.
解答 答案:71.A 細(xì)節(jié)理解題.根據(jù)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.澳大利亞的一個研究小組研究了年幼的孩子在悉尼和新加坡近視的原因,可知這一研究的目的就是研究近視的原因.故選A.
72.D 細(xì)節(jié)理解題.根據(jù)第二段第三行The major finding is that children in Sydney spend longer hours on outdoor activities than those in Singapore.主要發(fā)現(xiàn)是悉尼兒童在戶外活動的時間比在新加坡的時間長.可知因為悉尼兒童在戶外活動的時間長.故選D.
73.C 細(xì)節(jié)理解題.根據(jù)第三段的第二行句子Because natural light is good for eye growth and vitamin(維他命) D from the sunlight might be useful to it.因為自然光對眼睛的生長有好處,陽光下的維生素D可能對眼睛有益.可知自然光和維生素D對眼睛有益.故選C.
74.B 細(xì)節(jié)判斷題.根據(jù)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.室內(nèi)和室外的體育活動都使眼睛聚焦于遠(yuǎn)處的物體上,從而防止眼睛的形狀改變.可知更多的看著遠(yuǎn)處的物體可以幫助眼睛保持原來的形狀是正確的.故選B.
75.C 主旨?xì)w納題.根據(jù)整篇文章內(nèi)容及其第一段句子For better eyesight(視力),doctors advise limiting(限制) the hours of screen time and encourage having enough eye resting time.為了更好的視力,醫(yī)生建議限制看屏幕的時間,并鼓勵眼睛有足夠的休息時間.可知文章告訴我們學(xué)生的眼睛休息是很重要的.故選C.
點評 在通讀全文的基礎(chǔ)上,根據(jù)全文大意,展開邏輯思維,瞻前顧后,認(rèn)真觀察選項,仔細(xì)推敲,確定最佳答案.