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（镇静）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 comer 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 teachers'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．
66．What's the theme of NDESEMSS this year？
| A． |
To give students more knowledge about safety and make sure their lives safe．
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| B． |
To give students more knowledge about health and make sure they eat healthily．
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| C． |
To give students more knowledge about science and make their study better．
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| D． |
To give students more knowledge about accidents and make them run away．
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67．What should you do first when accidents happen according to this passage？
| A． |
Run away．
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| B． |
Stand there．
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| C． |
Keep calm．
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| D． |
Cry loudly．
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68．According to this passage，which of the following is TRUE？
| A． |
Car accidents kill the most elementary and middle school students of all acidents．
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| B． |
When there's a fire，you should use cloth to cover your mouth and nose．
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| C． |
If you fall down in a moving crowd，you can do nothing but wait there．
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| D． |
When an earthquake happens，you should stay near buildings or trees．
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69．What's the best title for this passage？
| A． |
Be afraid of accidents．
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| B． |
The earthquake is coming．
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| C． |
Run away from accidents．
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| D． |
How to protect yourself．
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70．If the writer continues to write this passage，what will he write about？
| A． |
The changes of fires．
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| B． |
The reasons of accidents．
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| C． |
Sports injuries．
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| D． |
Smoking disadvantages．
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