Anypersonknowsbynowthatoneofthebestwaystoprotectyourbod...

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Any person knows by now that one of the best ways to protect your body from harmful UV rays is to apply sunscreen, but you might be forgetting one important part: your eyes. Sunglasses are the only way to protect your eyes, but buying sunglasses can be a confusing process. Specialists offer their professional advice for choosing your right pair of sunglasses. UV

Look for a label(標籤)that says 99 or 100 percent UV absorption or UV400, which means, the glasses block wavelengths that are shorter than 400 nanometers(納米), including all of the UVA and UVB rays, If the label only says something vague, such as “absorbs UV,” put the glasses back on the shelf.

Don’t mistake “polarized” for added sun protection—polarized sunglasses do not have any advantage in absorbing for clearer vision, particularly while driving or on the water.

Lens color

Don’t mistake “polarized” for added sun protection—polarized sunglasses do not have any advantage in absorbing UV. Instead, they cut the glare(炫光)from horizontal surfaces, allowing for clearer vision, particularly while driving or on the water.

Lens color

You don’t have to pick up the darkest pair in the store to get the best sun protection. Many shades can work well, including gray, green, yellow, brown and rose—it’s a matter of personal preference. Some colors can be particularly helpful for different activities of times, though. Green, for instance, tends to be good in the morning or at dust.

Lens material

A quality pair of sunglasses will have optically ground(光學打磨的)lenses with little distortion(扭曲), while

cheaper varieties are often made out of pressed plastic. How to tell looking through the lenses, and determine if

there’s any distortion.

Frames

Oversized glasses are more than a fashion statement: they are good for eye protection, as well. Big frames or a wraparound style avoid more UV, preventing rays from coming in at the sides. Wraparound glasses can also help cut down on dry eye by protecting evaporation of the eye’s natural tear film(淚膜)

33. A pair of sunglasses can probably offer good protection against UV rays if its label says ______.

A. absorbs UVA B. absorbs UVB C. UV 400 D. polarized

34. Which of the following may benefit the most from polarized sunglasses?

A. A truck driver B. A soccer coach

C. a school security guard D. a marathon runner

35. How does lens color affect the eyes protection from UV rays?

A. Green offers the best protection in most environments

B. Many colors applied on sunglasses can offer good sun protection

C. The darker the lens color is, the better protection the sunglasses offer.

D. The lighter the less color is, the better protection the sunglasses offer.

【回答】

CAB