单选题
The legal limit for driving after drinking alcohol is 80 milligrams of alcohol in 100 milliliters of blood, when tested. But there is no sure way of telling how much you can drink before you reach this limit. It varies with each person depending on your weight, your sex, whether you have just eaten and what sort of drinks you have had. Some people might reach their limit after only about three standard drinks. In fact, your driving ability can be affected by just one or two drinks. Even if you are below the legal limit, you could still be taken to court if a police officer thinks your driving has been affected by alcohol. It takes about an hour for the body to get rid of the alcohol in one standard drink. Or, if you have a heavy drinking in the evening you might find that your driving ability is still affected the next morning, or you could even find that you are still over the legal limit. In addition, if you have had a few drinks at lunchtime, another one or two drinks in the early evening may well put you over the legal limit. In a test with professional drivers, the more alcoholic drinks they had had the more certain they were that they could drive a test course through a set of moveable posts and the less able they were to do it! So the only way to be sure you are safe is not drink at all. Alcohol is a major cause of road traffic accidents. One in three of the drivers killed in road accidents have levels of alcohol which are over the legal limit, and road accidents after drinking are the biggest cause of death among young men. More than half of the people stopped by the police to take a breathalyzer (呼吸分析器) test have a blood alcohol concentration of more than twice the legal limit. It is important to remember that driving after you have been drinking does not just affect you. If you are involved in an accident it affects a lot of other people as well, not least the person you might kill or injure.
单选题
The amount of alcohol a driver can drink before reaching the legal limit is ______. A. 80 mg of pure alcohol B. approximately three standard drinks C. different from one to another D. exactly proportional to his or her body weight
【正确答案】
C
【答案解析】[解析] 根据题干关键词legal limit定位到第一段第二句：But there is no sure way of telling how much you can drink before you reach this limit. It varies with each person…可知，喝多少酒能达到法律界限因人而异。故C)为正确答案。 [避错点拨] A)项“80毫克的纯酒精”表述太过绝对；B)项“大约三个标准杯”和D)项“和体重成比例”与原文不一致。
单选题
When might a motorist be taken to court by the police for drinking and driving? A. When he or she has driven a vehicle after drinking any kind of alcohol. B. When he or she has drunk at least three standard drinks before driving. C. Only when tests show that he or she has 80 mg of alcohol in 100 ml of blood. D. When the police think that drinking has exerted influence on him or her.
【正确答案】
D
【答案解析】[解析] 根据题干关键词taken to a court定位到第二段第二句：Even if you are below the legal limit, you could still be taken to court if a police officer thinks your driving has been affected by alcohol.即使低于法律界限，但如果警官认为酒精影响了驾驶，你仍会被告上法庭。故选D)项。 [避错点拨] A)项“喝了任何一种酒后驾车”与原文信息矛盾；B)项“在开车前至少喝了三标准杯的酒”在文中没有文字依据；C)项中只是司机饮酒量超过法律限制的情况，没有考虑到第三段中虽未达到法定限度，但仍会被逮捕的情况。
单选题
If a driver has drunk heavily in the evening, the next day he or she might be ______. A. still drunk until lunchtime B. unable to drive until the evening C. over the legal limit in the morning D. unable to drive all the following day
【正确答案】
C
【答案解析】[解析] 根据题干关键词drunk heavily定位到第二段第四句：…if you have a heavy drinking in the evening you might find that your driving ability is still affected the next morning, or you could even find that you are still over the legal limit.由此可知如果晚上喝得酩酊大醉，第二天早晨会觉得驾驶能力仍然受影响，所以正确答案为C)项。 [避错点拨] A)项“直到午饭时还是醉的”在文中没有依据；B)项“直至晚上才能开车”和D)项“第二天一整天都不能开车”过于绝对。
单选题
Why is alcohol thought to be a major cause of road accidents according to the passage? A. Every day, more than three drunk divers are killed in road accidents. B. Accidents caused by drunk driving account for a great proportion. C. Drinking affects people's view. D. One in three motorists drink heavily.
【正确答案】
B
【答案解析】[解析] 根据题干关键词cause，road accident倒数第二段第二句：One in three of the drivers killed in road accidents have levels of alcohol which are over the legal limit, and road accidents after drinking are the biggest cause of death among young men，交通事故中丧生的司机，三个中就有一个喝酒超过了法律界限，酒后开车造成的交通事故是年轻人死亡的最大原因。由此可以断定，酒后开车被认为是造成交通事故的主要原因，所以选B)项。 [避错点拨] A)项“每天都有超过三名的醉酒司机在交通事故中丧生”和D)项“每三个驾车者中就有一个酗酒”与原文信息不一致；C)项“饮酒影响人们的思维”在文中没有依据。
单选题
What is the message the author intends to convey? A. The necessity of alcohol to be banned. B. The harmfulness of drunk driving. C. Alcohol and road accidents. D. More severe punishment for drunk drivers.