问题补充：
We humans are only born with one set of eyes, so its our job to take care of them for our whole lives. The good news is that if we do a few simple things every day, we can maintain (保持) our eyesight and reduce (减少) the risk of ever hurting our eyes.
Almost all doctors agree that we can improve and maintain good eyesight by eating lots of fresh fruits and vegetables. It is especially important for us to eat vegetables like carrots and sweet potatoes. Besides, we need to protect our eyes when we spend a long time in bright sunlight. The best way to do. this is by wearing sunglasses that have 100% UV (紫外线) protection. Whats more, it is necessary to protect our eyes when we work with dangerous chemicals (化学物质). For this reason we should always wear goggles in chemistry labs at work or at school. Finally, we should not spend too much time in front of the computer or television screen. That is why doctors advise if we have to use a computer for a long time, we should take a short break every fifteen or thirty minutes.
Maintaining good eyesight is important. If we do these few simple things we can protect our eyes and reduce the chances of losing our eyes. As the popular English expression goes, “Its all fun and game, until someone loses an eye.” When people say this, they mean that losing an eye is a very terrible thing.
【小题1】When should we wear goggles?A．While watching TV.B．While using a computer.C．While staying in the sun.D．While working in a chemistry lab.【小题2】How many pieces of advice are given in the passage?A．Two.B．Three.C．Four.D．Five.【小题3】What does the underlined word ‘that’ refers to?A．We should eat lots of fresh fruits and vegetables.B．We should take a short break every fifteen or thirty minutes.C．We should not spend much time in front of a computer or TV.D．We should do a few simple things every day to keep our eyesight.【小题4】Which would be the best title for the passage?A．Fun and Games with Our EyesB．Caring for Our EyesC．The Risk of Hurting Our EyesD．Born with One Set of EyesD
答案：
(答案→)D
解析：文章体裁为说明文。主要内容：保护视力的重要性和途径。
【小题1】细节题。第二段，第二条中，有信息。
【小题2】细节题。由文章第二段的1.Its especially important for us to eat …2. Besides 3 whats more 4. Finally 可得出四条信息。
【小题3】细节题。直接在第三段中that 前的句子可直接找出答案
【小题4】主旨大意题。根据第一段中第一句的主旨句We humans are only born with one set of eyes, so its our job to take care of them for our whole lives.可推断出。最后一段的第一句Maintaining good eyesight is important.也在强调保护视力的重要性。而且，第二段分四条讲解保护视力的途径。
