Cars are lots of fun, but they could also be dangerous. We have to be careful when we driv

Cars are lots of fun, but they could also be dangerous. We have to be careful when we drive them or ride in them.
It's always a good idea to put on your seat belt when you're in a car. Why? Think about this example: You put an egg on a skateboard and give it a push. If the skateboard hits a stone, it will stop, but the egg won't. It will fly through the air, hit the ground and break.
Now, think what would happen if you tied the egg to the skateboard. When the skateboard hits a stone, the egg won't go flying; it will stay safely on the skateboard.
Volvo, a famous Swedish carmaker, was the first to use seat belts in 1849.
Air bags are also very important for car safety, because sometimes a seat belt isn't enough. If the car is going really fast and runs into something, seat belts could even hurt the people who wear them. Most new cars have air bags in front of and next to the seats. When a car hits something, its air bags will come out quickly in less than one second to keep the people inside safe.
【小题1】The passage mainly tells us .A．two important ways to keep safe in carsB．how air bags work to make cars safeC．how seat belts work to make cars safeD．why we must tie the egg to the skateboard【小题2】The writer gives the example of the egg to _.A．tell us that eggs are easy to breakB．show how to wear a seat beltC．show why it's important to wear a seat belt in a carD．tell us what a skateboard is【小题3】Seat belts can make us safer because .A．we are interested in them B．they can stop us from hitting other carsC．they can help us stay safely on the seatsD．they are made of strong materials【小题4】Air bags are important for cars because _.A．they are made of plastic B．they can also help us to keep safe in a carC．they can keep cars running slowly D．they are put in front of and next to the seats【小题5】Which of the following is TRUE according to this passage?A．It won't be dangerous if there are seat belts or air bags in a car.B．Now most of new cars still have only one air bag.C．When a car hits something, its air bags will come out a few minutes later.D．Volvo was the first to use seat belts.A

(答案→)A 解析：文章介绍了驾车和乘车时系安全带自我保护的原理，安全气囊是如何保护驾车人和乘车人安全的。【小题1】整体理解题通读文章可知文章介绍了驾车和乘车时系安全带自我保护的原理，安全气囊是如何保护驾车人和乘车人安全的。【小题2】细节理解题通读文章第二、三段可知由鸡蛋系再滑冰板上再碰石头二鸡蛋不破的原理来告知人们乘车驾车系安全带的重要性。【小题3】推理判断题由可知由鸡蛋系再滑冰板上再碰石头二鸡蛋不破的原理可知系安全带可以在作为上处于安全状态。【小题4】细节理解题由“When a car hits something, its air bags will come out quickly in less than one second to keep the people inside safe.”可知当发生相撞时，安全气囊打开同样起到保护安全的作用。【小题5】整体理解题通读全文由“Volvo, a famous Swedish carmaker, was the first to use seat belts in 1849.”可知。

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