阅读理解。 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 snow, waiting ahead to send you off the road. The car coming to you may suddenly slip across the road. Here are some rules you can follow: Rule No. 1 for driving on icy roads is to drive smoothly. 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(careful) and slow as possible. Suppose you are driving with a full cup of hot coffee on the seat next to you. Drive carefully so that you wouldn't spill it. Rule No. 2 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 the control of your car at all times and you will not get into trouble. 1.  What does the writer try to tell us in this passage? A. He tells us his dislikes about the winter weather. B. He gives us information about winter weather. C. He asks people not to drive in winter. D. He advises people on safe driving in winter. 2. According to the passage, what does the writer think of driving in winter? A. People should not drive in snow. B. People drive their cars too fast. C. People should stop their cars less gently. D. People should think more about problems of winter driving. 3. Why does the writer talk about a cup of coffee? A. He tries to show how important smooth movements are. B. He wants to ask the drivers to bring some soft drinks with them. C. He tells the drivers to be more relaxed while driving. D. He tries to show how it can be spilled. 4. Which of the following is NOT TRUE? A. Traffic accidents take place more easily in winter. B. Fog and ice often causes car accidents. C. The stopping distance on ice is the same as the usual one. D. In winter you'd better drive your car more carefully. 5. Which traffic sign shows the main ideas of this passage? A. B. C. D.