7．Eyesight plays a very important role in our daily life．Every waking moment，the eyes are working to see the world around us．Over forty percent of Americans worry about losing eyesight，but it's easy to include steps into our daily life to ensure healthy eyes．Here are five suggestions for a lifetime of healthy eyesight：
•Schedule yearly exams．Eye care should begin early in life．（36）B The good news is that millions of children now can have yearly eye exams and following treatment，including eyeglasses．
•Protect against UV rays（紫外線）．Long-term stay in the sun creates risk to your eyes．No matter what the season is，it's extremely important to wear sunglasses．（37）C
•Give your eyes a break．Two-thirds of Americans spend up to seven hours a day using computers or other digital products．This frequent eye activity increases the risk for eye tiredness．（38）G
•Eat your greens．（39）A Vitamins C and E help protect eyesight and promote eye health．
•Practice safe wear and care of contact lenses（隱形眼鏡）．Many Americans use contact lenses to improve their eyesight．（40）FAlways follow the doctor's advice for appropriate wear．Otherwise，you may have problems such as red eyes，pain in the eyes，or a more serious condition．

A．As part of a healthy diet，eat more fruits and vegetables each day．
B．Experts advise parents to bring babies 6to 12months of age to the doctor for a careful check．
C．They can properly protect your eyes．
D．Stay in good shape by taking more vitamins．
E．Parents usually don't care about their own eyesight．
F．While some follow the medical guidance for wearing contact lenses，many are breaking the rules and putting their eyesight at risk．
G．Experts recommend that people practice the 20/20/20rule：every 20minutes，take a 20-second break and look at something 20feet away．

分析 本文是一篇選句填空閱讀，屬于科普類文章，視力起著非常重要的作用在我們的日常生活中，每天醒著的時(shí)候，眼睛正在看周圍的世界，超過(guò)百分之四十的美國(guó)人擔(dān)心失去視力，擁有健康的視力是每個(gè)人關(guān)心的事情，這篇文章以此展開介紹了五個(gè)建議可以讓我們終身享有健康的視力．

解答 36．答案：B．考查句意理解和上下文串聯(lián)．根據(jù)下文的句子：Experts advise parents to bring babies 6 to 12 months of age to the doctor for a careful check．醫(yī)生建議父母到6到12個(gè)月大的孩子去醫(yī)院做視力檢查，可知：保護(hù)視力應(yīng)該很早就開始，所以答案是B．
37．答案：C．考查句意理解和上下文串聯(lián)．根據(jù)上文的句子：No matter what the season is，it's extremely important to wear sunglasses．不管什么季節(jié)，戴太陽(yáng)鏡都是非常重要的，可知：它們可以適當(dāng)?shù)谋Ｗo(hù)你的眼睛，所以答案是C．
38．答案：G．考查句意理解和上下文串聯(lián)．根據(jù)上文的句子：Two-thirds of Americans spend up to seven hours a day using computers or other digital products．三分之二的美國(guó)人每天花7個(gè)小時(shí)使用電腦和其他數(shù)字產(chǎn)品，可知：這個(gè)頻繁的視力活動(dòng)會(huì)增加眼睛疲勞的危險(xiǎn)，所以答案是G．
39．答案：A．考查句意理解和上下文串聯(lián)．根據(jù)下文的句子：As part of a healthy diet，eat more fruits and vegetables each day．作為健康飲食，每天要多吃蔬菜和水果，可知：多吃綠色的食品，所以答案是A．
40．答案：F．考查句意理解和上下文串聯(lián)．根據(jù)上文的句子：While some follow the medical guidance for wearing contact lenses，many are breaking the rules and putting their eyesight at risk．有人聽從佩戴隱形眼鏡的醫(yī)學(xué)建議，而有人忽視了這些規(guī)定讓他們的視力有危險(xiǎn)，可知：佩戴眼鏡要聽從醫(yī)生的建議，所以答案是F．

點(diǎn)評(píng) 本文是一篇選句填空閱讀，主要考查學(xué)生對(duì)文章內(nèi)容理解及上下文聯(lián)系，做題時(shí)，應(yīng)仔細(xì)閱讀原文，對(duì)照原文內(nèi)容結(jié)合所給選項(xiàng)含義，聯(lián)系上下文，從而得出正確答案．切忌胡亂猜測(cè)，一定要做到有理有據(jù)．

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