题目内容
阅读下面材料，David、Lucy、Carl、Nancy和Ruby都有一些与健康有关的困惑.阅读第63至第67题中的个人情况说明和A到F六则不同建议，选出符合个人情况的最佳选项，选项中有一项是多余选项.
81. David: When I have a headache, a nap helps. Sometimes, though, it causes a headache. Why?
82. Lucy: My sister says I drink too much tea. Is that possible?
83. Carl: I get back and neck pain whenever I’m driving. How can I adjust my seat to prevent it?
84. Nancy: My favorite sports drink now comes with protein, will it help me when I run?
85. Ruby: I’ve seen some drugstore products for cleaning toothbrushes. I never clean mine. Is that OK?
A
There’s no proof that toothbrush germ will hurt you. Microwaving or running your brush through the dishwasher only damages the brushes, too. All you really need to do is to rinse(冲刺)your brush thoroughly after each use, and throw it away after 3 to 4 months-or sooner if it’s looking worn. Store it standing upright, uncovered, where it can air out.
B
One third of people who eat ice cream get a headache. “Brain freeze” happens when something is too cold in the roof of your mouth. The cold causes blood vessels in your brain to expand, sparking a headache. Keep the ice cream toward the front of your mouth, and enjoy each bite slowly. That may avoid such a headache.
C
Some reports say that tea can reduce the iron amount you absorb from food by up to 70 percent. But, as long as you’re not drinking more than four 8-ounce cups a day, there’s no reason to worry. People can get plenty of iron from cereals, meat and multivitamins.
D
Make the seat back upright so that your lower back presses comfortably against it. Then move the seat forward enough that you don’t have to stretch out for the pedals(踏板), but not so close that you hang over the heels like a little old lady. Your hands should be just below shoulder height when they’re at the 9 and 3 o’clock positions.
E
You’re right. A nap is a great way to reduce a headache, especially the tension kind that’s most common. But just as there are two sides to every coin, a nap can also bring on a headache. That’s why specialists advise people not to oversleep. Stick as closely as you can to a regular sleep schedule.
F
It may help you feel better after you run. In a recent study, researchers gave two kinds of sports drinks-one regular and one with protein. Those who had the protein sports drink kept 15 percent more fluids(液体)than those on an ordinary sports drink. In the study, benefits of the protein drink continued for 3 hours, and researchers believe the effect could last a whole day.
ECDFA
