Question

13．阅读短文，从各题所给的四个选项中，选出最佳答案．
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．

66．The passage mainly tells usA．
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
67．The writer gives the example of the egg toC．
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
68．Seat belts can make us safer because．C
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
69．Air bags are important for cars becauseB．
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 are put in front of and next to the seats
70．Which of the following is TRUE according to this passage？D
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．

Answer 1

分析 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以及安全带的历史，告诉我们乘车时系安全带是非常重要的．

解答 答案：66．A  主旨归纳题．根据整篇文章内容及其第四段句子Volvo，a famous Swedish carmaker，was the first to use seat belts in 1849．沃尔沃，一个著名的瑞典汽车制造商，在1849年第一个使用安全带．和最后一段第一句Air bags are also very important for car safety，对于汽车安全气囊也很重要．可知文章介绍了驾车和乘车时系安全带自我保护的原理以及安全气囊是如何保护驾车人和乘车人安全的．故选A．
67．C   细节理解题．根据第二段第一行句子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．当你在车里时，系好安全带总是一个好主意，为什么？想想这个例子：你把一个鸡蛋放在滑板上推一下，如果滑板撞到石头，它就会停下来，但是蛋不会．和第三段句子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．现在想想如果你把鸡蛋绑在滑板上会发生什么事，当滑板撞到石头上时，鸡蛋就不会飞了，它会安全地留在滑板上．可知通过将鸡蛋系在滑冰板上再碰石头，而鸡蛋不破的原理来告知人们乘车驾车系安全带的重要性．故选C．
68．C   细节推理题．根据第三段句子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．现在想想如果你把鸡蛋绑在滑板上会发生什么事，当滑板撞到石头上时，鸡蛋就不会飞了，它会安全地留在滑板上．可知通过将鸡蛋系在滑冰板上碰石头而鸡蛋不破的原理，告诉我们系安全带可以让人在座位上处于安全状态．故选C．
69．B   细节理解题．根据最后一段第二行句子When a car hits something its air bags will come out quickly in less than one second to keep the people inside safe．当一辆汽车撞上某东西时，它的气囊会在不到一秒钟的时间内迅速打开，保护里面人的安全．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．故选B．
70．D   细节判断题．根据第四段句子Volvo a famous Swedish carmaker was the first to use seat belts in 1849．沃尔沃一个著名的瑞典汽车制造商，在1849年第一个使用安全带．可知沃尔沃是第一个用安全带的是正确的．故选D．

点评 在通读全文的基础上，根据全文大意，展开逻辑思维，瞻前顾后，认真观察选项，仔细推敲，确定最佳答案．