Exercise is the best way to stay healthy. But few people get enough exercise. Only 20% of Americans get 150 minutes of physical activity every week. More than 80 million Americans over 6 years old are not active (活跃的).

Many US schools cut (削减) PE classes. Only 15% of schools have this class at least three days a week.

This year, the US National Institutes of Health (NIH) starts an important study. It will show the things happening inside a body after exercise. The NIH hopes to tell people that exercise is a kind of good medicine.

The study will run for six years. It studies a group of about 3,000 people. They are from the 11-year-olds to the old. The study has shown many nice changes in the body during and after exercise so far.

And the study has also shown that housework can be physical exercise. “Cutting the grass, cleaning rooms, washing the car — all of these are exercise,” says a scientist. “Exercise isn’t just throwing a ball into a basket.”

1.What do the first and second paragraphs mainly tell us?

A. How to stay healthy in our daily life.

B. Children under 6 years old are not active in their life.

C. Many US schools don’t have enough PE classes.

D. Most Americans don’t get enough exercise.

2.Why does the US National Institutes of Health start the important study?

A. To tell people exercise is important.

B. To show people some useful exercise.

C. To call on students to do more exercise.

D. To ask people to start doing housework.

3.Which is TRUE about the study?

A. It will run for half a year.

B. It only studies the middle school students.

C. It has shown the body changes during and after exercise.

D. There are three hundred people taking part in the study.

4.Which of the following is NOT mentioned (提及) in the passage?

A. Cutting the grass.

B. Doing some cleaning in the house.

C. Planting some trees in the garden.

D. Washing the car.

5.What’s the best title for the passage?

A. An important study on exercise.

B. Doing housework is helpful.

C. The school students and exercise.

D. A kind of medicine for the old and the young.

Do you sleep well?If your answer is no, the following may help you.

Set a certain bedtime and rising time

A certain bedtime and rising time can help you build up your body clocks. Set a bedtime which is good and natural for you. Don't change your bedtime and rising time on weekends.

Avoid (避免) exciting activities just before sleep

Exciting activities get your mind running. At the same time, if you make tomorrow's plan or read an exciting story before turning off the light, it doesn't give you enough time to relax before you try to sleep.

Keep the bedroom for sleeping only

It's a bad habit for you to use your bedroom as a place to eat, watch TV, read, talk on the phone, or discuss important matters with your family members. Stop that habit to get better sleep.

Don't go to bed too early

Your body usually lets you sleep only the number of hours it needs. You should decide how many hours you must sleep not to have daytime sleepiness.

Take a warm shower before your bedtime

A twenty-minute warm shower at a temperature of about 45℃-50℃ not only is great relaxation at day's end, but also raises your body temperature by several degrees. The coming drop in temperature of your body will make you feel sleepy.

1.If you want to build up your body clocks, you should .

A. set a certain bedtime and rising time

B. not go to bed too early or too late

C. keep the bedroom for sleeping only

D. take a warm shower before sleeping

2.Why should you avoid exciting activities just before sleep?

A. Because they will get your mind running.

B. Because you have to make tomorrow's plan.

C. Because you should read an exciting story.

D. Because you will have to turn off the light.

3.What will make you feel sleepy according to the passage?

A. Taking a cold shower. B. The drop in your body temperature.

C. Your daily experience. D. Raising your body temperature.

Have you heard of the Hide?and?Seek World Championship(世界捉迷藏锦标赛)? It is not a game for children but a match for grown?ups. This year, it took place in an Italian village called Consonno.

______, the Hide?and?Seek World Championship runs for two days or until a winner is chosen. The rule of the match is simple. The teams will be divided(分成) into four groups. One person from each group is chosen to hide. The hider has 60 seconds to pick a place. And when the game begins, he or she has 10 minutes to hit the target(目标) in the middle of the playing field without being caught by the seekers(搜索者).

By the way, the search team is made up of American football players who are both strong and fast.

The Hide?and?Seek World Championship takes place in Italy every year, and the number of people has been increasing since the first game in 2010. The organizers of the match hope that the game of hide?and?seek will become an Olympic sport some day.

1.Who are the people in the search team?

A. Common people. B. Sportsmen.

C. Children. D. Organizers.

2.Which of the following statements is NOT true from the passage?

A. There are two groups in all.

B. One person is chosen from each group to hide.

C. The hider has 60 seconds to pick a place.

D. The hider should hit the target without being caught.

3.Which of the following is the best for “______” in Paragraph 2?

A. Unlike the traditional children's game

B. Like all children's games

C. As a world?famous football game

D. As an Olympic game

4.Which column(栏目) of a newspaper is the passage probably from?

A. Culture. B. Animal. C. Travel. D. Sports.

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