Unit 3 A taste of English humour Unit Revision 课件（人教版必修四）.ppt

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 youre not drinking more than four 8-ounce cups a day, theres 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 dont 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 theyre at the 9 and 3 oclock positions. E Youre right. A nap is a great way to reduce a headache, especially the tension kind thats most common. But just as there are two sides to every coin, a nap can also bring on a headache. Thats 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. 答案：1－5　ECDFA Ⅲ.阅读表达 阅读下面短文，并根据短文后的要求回答问题(请注意问题后的字数要求)。 [1]Forgiving someone who has hurt you or let you down is never an easy thing. Several new studies, however, say that it could have a lot of health benefits. When you think of forgiveness, you probably dont think of it as being a health or medical problem. Studies from Stanford University, on the other hand, show that something like anger can ___