3.B.由短文所讲述的内容可知，作者教给人们如何在冰雪上谨慎驾驶及如何平稳地煞车。由此，可以将A、C、D三项予以排除。本题的答案亦可直接从“Rule Number Two is to pay attention to what might happen.”一句中判断出来。

2.C.考虑到安全问题，作者提出了在各种恶劣天气条件下开车的注意事项。读完本文后，人们自然可以更好地驾驶自己的汽车了。所以答案是C。

1.D.根据文中的“Rule Number One for driving on icy roads is…”和“Rule Number Two is to pay attention to…”这两句句不难看出，短文的主要内容是就如何在冬季安全驾驶这一问题，向司机们提出的两点建议。故答案为D。

6.Which traffic sign shows the main idea of the passage?

[解题思路点拨]这篇说明文的大体意思是：由于受山顶上弥漫的大雾或者融雪下面的冰等等因素的影响，冬季是易发生事故的危险季节。为了行驶安全，要遵循两个原则：一是平稳驾驶。加速或煞车时，动作要尽可能地轻缓一些。二是提防可能会发生的任何事情。路面上的雪越多，就应该把视线放得更远些。当路面出现潮湿，有雪、冰等情况时，将车停下来所需要的时间是不同的。随时准备控制车辆的运行，驾驶员就不会遇到麻烦。

5.Which of the following is NOT true?

　A. Traffic accidents take place easily in winter.

　B. Fog and melting snow often cause car accidents.

　C. The stopping distance on ice is as long as the usual one.

D. In winter you should drive your car with great care.　

4.In the passage he writer talks about a cup of coffee ______.

　A. to show how important smooth movements are

　B. to ask the drivers to bring some soft drinks with them

C. to tell the drivers to be more relaxed　

D. to show how it an be spilled

3.According to the passage, the writer thinks that _______.

　A. people should not drive in the snow

　B. drivers should think more about problems in winter driving

C. people drive too fast in winter　

D. winter drivers should stop their cars less

2.People can _____ after reading this passage.

　A. find out about the weather　B.get some information on driving lessons

　C.learn about better driving　D.decide which is the best season for traveling

1.The writer tries to _____ in this passage.

　A. show his dislikes about bad winter weather　B.give information about winter weather

　C.ask people not to drive in winter　D.advise people about safe driving in winter

3. C。短文中提到很多人相信这是外星人所为 (Many people believe that these crop circles are the messages sent by living things from outer space or the marks left by their spaceships.)，但是他们并没有证据。因此A项不对。虽然很多地方都发现过“庄稼圆圈”，但并不是在全世界都有，短文中列举了三个国家。故B项不对。短文中提到有的农民声称是他们干的，但也予以了否定。由此，C项是最佳答案。通盘考虑全篇的意思，人们不懂得为什么麦田里会出现这种现象，科学家们也没有弄清原因。短文的最后一段说的也是这个意思。

　Passage 2　Winter is dangerous because it’s so difficult to know what is going to happen and accidents take place so easily. Fog can be waiting to meet you over the top of a hill. Ice might be hiding under the melting (融化) snow, waiting ahead (前面) to send you off the road. The car coming to you may suddenly slip across the road.

　Rule Number One for driving on icy roads is to drive smoothly (平稳地). Sudden movements can make a car very difficult to control. So every time you either start or stop your car, increase or reduce your speed, you must be as gentle and slow as possible. Suppose you are driving with a full cup of hot coffee on the seat next to you. Drive so that you wouldn’t spill (溅) it.

　Rule Number Two is to pay attention to what might happen. The more ice there is, the further down the road you have to look. Test how long it takes to gently stop your car. Remember that you may be driving more quickly than you think. Generally, allow twice of your usual stopping distance when the road is wet, three times this distance on snow, and even more on ice. Try to stay in control of your car at all time and you will not get into trouble.　 　(选自2003年上海市试题)