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 (安全帶) 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.

1.The passage mainly tells us ______.

A．two important ways to keep safe in cars

B．how air bags work to make cars safe

C．how seat belts work to make cars safe

D．why we must tie the egg to the skateboard

2. The writer gives the example of the egg to ______.

A．tell us that eggs are easy to break

B．show how to wear a seat belt

C．show why it’s important to wear a seat belt in a car

D．tell us what a skateboard is

3. Seat belts can make us safer because ______.

A．we are interested in them

B．they can stop us from hitting other cars

C．they can help us stay safely on the seats

D．they are made of strong materials

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 car

C．they can keep cars running slowly

D．they’re put in front of and next to the seats

5. Which of the following is TRUE according to this passage?

A．When a car hits something, its air bags will come out a few minutes later.

B．It won’t be dangerous if there are seat belts or air bags in a car.

C．Now most of new cars still have only one air bag.

D．Volvo was the first to use seat belts.

 

【答案】

1.A

2.C

3.C

4.B

5.D

【解析】

試題分析：文章介紹了駕車和乘車時系安全帶自我保護(hù)的原理，安全氣囊是如何保護(hù)駕車人和乘車人安全的以及安全帶的歷史。

1.通讀文章可知，文章介紹了駕車和乘車時系安全帶自我保護(hù)的原理以及安全氣囊是如何保護(hù)駕車人和乘車人安全的。所以本題選A。

2.通讀文章第二、三段可知，通過將雞蛋系在滑冰板上再碰石頭，而雞蛋不破的原理來告知人們乘車駕車系安全帶的重要性。 所以本題選C。

3.通過將雞蛋系在滑冰板上碰石頭而雞蛋不破的原理可知，系安全帶可以讓人在座位上處于安全狀態(tài)。所以本題選C。

4. 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，當(dāng)發(fā)生相撞時安全氣囊打開，同樣起到保護(hù)安全的作用。所以本題選B。

5.通讀全文由“Volvo a famous Swedish carmaker was the first to use seat belts in 1849。”可知，沃爾沃是第一個用安全帶的。所以本題選D。

考點：本題考查說明文體。

點評：完成本題需要首先讀明白文章中試驗的原理，方可理解安全帶的重要性。本文有一定的難度，閱讀本文時，應(yīng)該盡量多讀幾遍，體會文章的意思；由于多部分問題不能在文中直接找到答案，所以應(yīng)該找出相似的或者有關(guān)聯(lián)的句型，加以比較，從而得出正確選項。

 

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