1.For better eyesight,doctors advise limiting the hours of screen time and encourage having enough eye resting time.However,another study shows that sitting in front of compute 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 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 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.
28.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.
29.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.
30.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
31.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 文章主要介紹了兩種護眼方式:多做戶外運動,減少盯著屏幕看的時間.
解答 DCBC
28 D 細節(jié)題.根據(jù)第二段第四句 The major finding is that children in Sydney spend longer hours on outdoor sports than those in Singapore 可知,盡管悉尼的兒童在電腦和電視機前花的時間更長,但他們的近視率比新加坡的兒童低.原因主要是悉尼的孩子們比新加坡的孩子們在戶外運動上花更多時間.故正確答案為D.
29 C 細節(jié)題.根據(jù)第三段第三句 Because natural light is good for eye growth and vitamin D from the sunlight might be useful to it 可知,自然光對眼睛的成長有很好的作用,日光中蘊含的維生素D也有益于眼睛.故正確答案為C.
30 B 判斷正誤題.A項,根據(jù)第三段第四句 Many doctors suggest that every child get its first eye test when he/she is about two and half years old 可知,醫(yī)生建議兒童在大約兩歲半時就進行第一次視力檢查,而不是到了上學的年紀才檢查.故A項表述錯誤.B項,根據(jù)第三段第一句 Indoor and outdoor sports both make the eyes pay attention to more distant objects,which stops the eyes from changing original shape 可知,室內(nèi)和戶外運動都能讓眼睛注意遠處的事物,這樣可以防止眼睛變形.故B項表述正確.C項,根據(jù)第三段第五句 It is necessary for myopic children to wear glasses to stop headaches,trouble reading and so on 可知,近視的兒童無論做什么事都要戴上眼鏡,而不是在戶外活動時不戴眼鏡.故C項表述錯誤.D項,根據(jù)第三段第三句 Because natural light is good for eye growth and vitamin D from the sunlight might be useful to it 可知,陽光對于保護視力具有良好的作用,而不是應該限制兒童曬太陽的時間.故D項表述錯誤.題干要求選擇正確(true)的選項,B項符合題意.故正確答案為B.
31 C 主旨題.根據(jù)全文可知,文章主要介紹了兩種護眼方式:多做戶外運動,減少盯著屏幕看的時間.C項意為"多做戶外運動和限制看屏幕的時間都對眼睛有好處",符合主旨.A項意為"悉尼的孩子們在屏幕前呆的時間更長",這僅是科學家研究中發(fā)現(xiàn)的一個事實;B項意為"新加坡的孩子們喜歡室外運動",是悉尼的孩子更喜歡;D項意為"檢查學生視力非常重要",本文主要不是介紹檢查視力的重要性,而是要保護視力.均不符合主旨.故正確答案為C.
點評 做閱讀理解時要快速的瀏覽全文,把握文章主旨大意,帶著問題回到原文,尋找細節(jié)或概括相應的答案,最后要理清作者寫作思路.