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Thanks to better health care, most people are living healthier and longer lives. Someone who is born today can expect to live about thirty-five years longer than someone who was born in the nineteenth century. It is even thought that in the future more and more people will celebrate their hundredth birthdays. Here are some rules for a healthy life.

Get off the sofa!

Sure, it is comfortable to sit on the sofa and watch TV. But doctors say you should get off the sofa. To keep fit, you have to walk at least 10,000 steps every day. In the past, people’s jobs required more physical effort. They often had to walk for miles every day. When farmers were working in the fields, they were keeping fit at the same time. Think about it: Do you get the same amount of exercise today as they did in the past?

Eat healthy food!

It is important to eat food that is fresh and natural, for example, fruit and vegetables. Fast food is not healthy. You should only have it once in a while. Eating too much of the wrong food will harm your health.

Rest while you can!

When we were babies, we slept for much of the night. Teenagers do not need as much sleep as babies, but it is important for you to get about eight hours’ sleep a night. At weekends, you have got more time, so use it not just for your friends, but for rest too.

Do not worry. Be happy!

Many people believe that happiness is important for our general health. Sometimes it is not easy to be a teenager because of the difficulties of school, exams or friendships. If you are worried about something, talk to your parents or your teacher.

【小题1】In the passage, “Get off the sofa!” means ________.
A.we should take some exerciseB.we shouldn’t watch TV on the sofa
C.we should get off the sofa to keep fitD.we shouldn’t stay at home for a long time
【小题2】The underlined word “it” in the passage refers to(指代) ________.
A.healthy foodB.fast foodC.natural foodD.fresh food
【小题3】According to the passage, which of the following is TRUE?
A.The best rest is to spend more time with friends.
B.It is necessary for teenagers to get enough sleep.
C.Teenagers also need as much sleep as babies at night.
D.Sleeping for much of the night will do harm to your health.
【小题4】The passage is mainly about ________.
A.how to be a happy teenagerB.the importance of a healthy life
C.the ways of leading a healthy lifeD.teenagers’ common healthy problems
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Do you get in trouble for feeding your dog on food from dinner under the table? A new study suggests that by sharing “people food”, you might actually be helping to keep your pet healthy.

Many dogs are fed dry processed food. Science has shown that a diet of processed food is not healthy for humans. Scientists from the University of Helsinki say this diet is not enough with variety (多样化) and good for our pet dogs, either.

The scientists discovered that the foods a dog might find such as eggs, fish, meat and vegetables may be better than a diet of just dog food. Having different kinds of foods leads to many kind of microbes (微生物). There are millions of them in human and animal bodies. Some are detrimental to us, but many are good for us, and they play important roles in helping us digest (消化) food.

A total of 8,500 young pet dogs took part in the study. 4,500 of them were under 6 months old, and the rest were between 6 and 18 months old. The owners were asked about what food they had fed their pets and how often. When the dogs grew older, about 20% of the dogs showed CE symptoms (慢性肠胃不适症状). However, if dogs had had a mixed diet while young, it was 22%less possible for them to experience CE symptoms later in life.

Dr. Anna told The Times of London, “Dog foods on sale are considered to provide a complete diet... But nobody would give 12 years of the same food to a child—why should a dog be different?”

【小题1】What should dog owners do according to the new study?
A.They must offer dry food to their dogs.
B.They can share “people food” with dogs.
C.They had better buy more processed food.
D.They shouldn’t make food for dogs.
【小题2】Why is a diet of processed food not healthy for pet dogs?
A.It is not delicious.B.It is too expensive.
C.It is not complete.D.It is too difficult to digest.
【小题3】What do the underlined words “detrimental to” in Paragraph 3 mean?
A.Important to.B.Harmful for.
C.Impossible for.D.Similar to.
【小题4】How does the writer describe the study in Paragraph 4 to make it believable?
A.By using pictures.B.By giving examples.
C.By telling stories.D.By listing numbers.
【小题5】Which can be the best title for the passage?
A.How do We Take Care of Dogs?B.Stop Buying Dog Foods!
C.Can Dogs Eat Only Processed Food?D.Your Dog Won’t Have CE Symptoms!

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