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  3. What can we do to stay well? It’s a good idea to exercise, eat fruit, vegetab

What can we do to stay well? It’s a good idea to exercise, eat fruit, vegetab

游客2024-08-15  8
问题    What can we do to stay well? It’s a good idea to exercise, eat fruit, vegetables, and drink lots of water. We also know things not to do: it’s a bad idea to eat a lot of junk food or to be a couch potato. It’s a terrible idea to smoke. However, there is a lot of new information about health, some of which is surprising.

   Several beverages are good for the health. Orange juice has vitamin C. Milk has calcium. Black tea and green tea are good for health too because they have antioxidants that fight diseases such as cancer and heart disease. But most people don’t know a-bout cocoa. They enjoy the sweet, chocolaty beverage, but they don’t know that it has more antioxidants than tea!
   Too much stress is not good for physical health because it makes your blood pressure go up. Now we know more. Some stress is chronic, which means that it lasts a long time—for many months or years. Chronic stress can make people old. As people get older, they get gray hair and wrinkles in their skin, and their eyesight and hearing become worse. This is normal. But chronic stress makes people age faster. A scientist at the University of California studies stress. She can now identify how stress makes people age. It can damage the body’s DNA. The lesson from this is clear. We need to learn to relax.
   One easy and cheap way to help both your physical and mental health is just to sleep eight hours or more every night, but more and more people are not sleeping enough. According to the World Health Organization, over half the people in the world may be sleep-deprived, which means they don’t get enough sleep. Sleep-deprived people often have medical problems, such as high blood pressure, diabetes, and heart problems. It is also more difficult for them to make decisions. But there is another reason. A new study from Germany found that sleep makes people smarter. The study shows that the brain continues to work during sleep and helps the sleeper to work on problems. You didn’t do your homework last night? Maybe your brain can tell your teacher that you were working hard in your sleep!
   How many languages do you speak? A study from a university in Canada found something interesting. Bilingual people, who speak two languages very well, do better on tests than people who speak only one language. It seems to be mental exercise to hold two languages in your brain. Ellen Bialystock of York University says it’s "like going to a brain gym".
Questions 71—75
Complete the summary with words from the passage, changing the form where necessary with no more than three words for each blank.
   Scientists now have new information about other ways to【R1】______. Some are quite surprisingly unknown to us before. Normally, in order to have good physical and mental health, we know we should eat right, relax, sleep, and exercise both the body and【R2】______. Hot chocolate is now found to contain more antioxidants which are capable of fighting certain diseases. Research shows that we can slow down our ageing process by learning to【R3】______. It is also important to get enough sleep because lack of sleep will certainly lead to medical problems or make us less smart. Meanwhile,【R4】______ people are reported to behave better on tests than monolingual ones because they benefit from【R5】______by holding two languages. [br] 【R5】
选项
答案 mental exercise
解析 (根据题意定位至文章最后一段。该段倒数第二句提到“It seems to be mental exercise to hold two languages in your brain”。最后一句也把使用双语比作“去大脑健身房”，由此可以推断使用双语可以锻炼大脑思维，即“mental exercise”。)
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