What should you do if there's an earthquake at school? How can you protect yourself when you are caught in a stampede(踩踏) ? March 25 this year provides you with a good chance to learn about safety.

This day is called the National Day of Education on the Safety of Elementary and Middle School Students (NDESEMSS) (全国中小学生安全教育日) . The theme of the day this year is to give students more knowledge about safety and make sure their lives safe.

A survey done by the China Youth and Children Research Center showed that school accidents kill more elementary and middle school students than anything else. The main accidents come from stampedes, earthquakes, fires and sports injuries (伤害) .

What can we do to keep ourselves safe? Staying calm is the first and most important rule when facing accidents. But different accidents have different self-protection advice.

A stampede is possible anywhere. The larger a human crowd gets, the more likely stampedes become. When students around you begin to push, stand still and try to hold onto something, or stay in a corner until the crowd leaves. If you fall down in a moving crowd, cover your head with both hands. Lean to one side, curl up your body and bend your legs.

Earthquakes are common natural disasters (灾难) . When you feel the ground shake, drop down, take cover under a desk and hold on. You should stay indoors until the shaking stops. If you are outdoors, don't stay near buildings, trees or power lines.

When there's a fire, follow the teacher's instructions, leave the classroom quickly and use a piece of cloth to cover your mouth and nose so that you don't breathe in smoke.

1.What's the theme of NDESEMSS this year?

A.To give students more knowledge about safety and make sure their lives safe.

B.To give students more knowledge about health and make sure they eat healthily.

C.To give students more knowledge about science and make their study better.

D.To give students more knowledge about accidents and make them run away.

2.What should you do first when accidents happen according to this passage?

A.Run away. B.Stand there. C.Keep calm. D.Cry loudly.

3.According to this passage, which of the following is TRUE?

A.Car accidents kill the most elementary and middle school students of all accidents.

B.When there's a fire, you should use cloth to cover your mouth and nose.

C.If you fall down in a moving crowd, you can do nothing but wait there.

D.When an earthquake happens, you should stay near buildings or trees.

4.What's the best title for this passage?

A.Be afraid of accidents. B.The earthquake is coming.

C.Run away from accidents. D.How to protect yourself.

Trying to lose weight can be difficult, and while we all know exercise and diet are both basic needs, which one is more important?

If you had to choose, should you be hitting the gym, or eating salads? There are many ways you can burn a few hundred calories (卡路里): running for 20 minutes, an hour of swimming, or singing your favourite song 23 times. But the point is, it takes time to burn a lot of calories even with most tiring activity - not to mention the time spent on the way to the gym, and then back home to clean up.

Now, compare this to the number of calories in a chocolate bar - which is often over 200 calories. You could either walk for about an hour to burn that 200 calories, or you could simply not eat that chocolate bar. Which sounds easier to you? How about running for 30 minutes every day or cutting out those two cans of soda? Many physicians point out that there is a lot of high-sugar, high-fat, high-calorie foods we could cut from our diet, to see weight loss results more quickly. And studies also show that diet does actually play a bigger role in weight loss than exercise. A survey of 2000 children found that the level of physical activity was not the main reason for their weight. And a study of 3000 adults discovered that cutting down calories was connected to greater weight loss than exercise alone.

Of course, exercise has many health advantages besides weight loss, like slowing the aging process and improving mental health. But at the end of the day, if you expect to lose weight, you’re likely to get more bang for your buck if you focus on your diet first.

根据短文内容选择最佳答案。

1.The underlined words “get more bang for your buck” most probably means ________.

A.更加合算 B.付出努力 C.怦然心动

2.From the third paragraph mainly tells us that ________.

A.there is a lot of high-sugar, high fat, high-calorie foods in our daily diets

B.exercise like walking plays an important part in keeping our bodies healthy

C.your diet has a greater influence on your weight loss than exercise

3.The energy in a chocolate bar ________.

A.is as much as the energy we need for singing a song 23 times

B.may be burnt by walking for about half an hour

C.should not be added to a diet when you want to lose weight

4.Which of following is TRUE according to the passage?

A.A survey of 3000 children found out that cutting down calories is more important

B.Exercise has many health advantages besides helping us lose weight

C.In fact, exercise is not needed when we want to lose weight

5.Which of the following would you choose as the title of the passage?

A.Exercise VS Diet B.How To Lose Weight C.Different diets

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