logo - 刷刷题
下载APP
【简答题】

阅读理解 Scientists have found that human eyes are more likely to be damaged by UV rays (紫外线) while skiing in the snow-covered areas than sitting on the beach, according to a report by the UK newspaper The Telegraph. The researchers at Kanazawa Medical University, Japan and American company Johnson conductedthe study together. They looked at the effects of light reflection on newly fallen snow on a ski trail (arough path) in Ishikawa District, northern Japan. They compared the results with the levels of UV rayson a sand beach in southern Japan's Okinawa District. They found that on the beach, eyes are exposedto a daily 260 kilojoules (千焦耳) of UV a square meter compared to 658 kilojoules in snow-covered areas. The findings are supported by the Japan Meteorological Agency. According to the agency, the reflection rate of UV light on beaches is often between 10 and 25 percent, compared to 80 percent inthe new snow areas. The amount of light increased 4 percent with a 300-meter rise in height. Most of us know that UV rays can harm the skin. That's why we wear sunscreen on our skin beforewe get out in the sun. But many of us may not realize that UV rays are also harmful to the eyes. If your eyes are exposed to large amounts of UV radiation over a short period of time, you may experience a kind of sunburn of the eye, which is harmful. Your eyes will become red and feel a strangefeeling. They may be sensitive to light. Fortunately, this is usually temporary and seldom causespermanent damage to the eyes. Long-term exposure to UV radiation, however, can be more serious. Scientific studies andresearches have shown that exposure to small amounts of UV radiation over a period of many yearsincreases the chance of eye damage, which could lead to total blindness.1. You would most likely find the article in ________.A. a medical magazine B. a travel journal C. a doctor's diaryD. a physics textbook2. Which of the following statements is TRUE according to the passage?A. Too much eye exposure to UV rays may cause total blindness.B. Short-time exposure of the eyes to UV rays doesn't harm them at all.C. Most people know that UV rays harm the eyes as well as the skin.D. The study was conducted by researchers from Japan, the USA and the UK.3. The underlined word "sunscreen" in Paragraph 4 most probably means ______.A. sunglasses B. sun cream C. sun hat D. sunburn4. What will the passage most probably talk about next?A. Never ski on newly fallen snow in Japan.B. Take some measures to protect your eyes while skiing in new snow areas.C. Wearing a hat can provide protection while skiing in new snow areas.D. Go to hospital to have your eyes examined.

举报
题目标签:外线紫外线焦耳
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【多选题】下列哪些疾病适用于紫外线治疗()

A.
银屑病
B.
玫瑰糠疹
C.
红斑狼疮
D.
日光性皮炎
E.
圆形脱发