阅读理解 The legal limit for driving after drinking is 80 milligrams of alcohol in 100 milliliters of blood in the U. S. 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, sex, and the 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' re below the legal limit, you can 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. So, 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 through a set of moveable posts in the driving test... and the less able they were to do it / So the only way to be sure you' re safe is not to drink at all.
Alcohol is a major cause of road 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 people. More than half of the people stopped by the police to take a breath analyzer test have a blood alcohol concentration of more than twice the legal limit.
It is important to remember that driving after drinking doesn' t 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 one can drink before reaching the legal limit______.

A、 is 80 milligrams of pure alcohol
B、 is about three standard drinks
C、 is different for different people
D、 is not related to one' s body weight

【正确答案】 C

【答案解析】根据第一段第二、三句“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…”可知，每个人能喝的酒量是不同的。故选C。

单选题 When might you be taken to court by the police for drinking and driving?

A、 When you have driven a vehicle after drinking any alcohol at all.
B、 When you have had at least three drinks before driving.
C、 Only when tests show that you have 80 milligrams of alcohol in 100 milliliters of blood.
D、 When the police think that your driving is affected by alcohol.

【正确答案】 D

【答案解析】根据第二段最后一句“Even if you’re below the legal limit，you can still be taken to court if a police officer thihks your driving has been affected by alcohol．”可知，当警察认为你的驾驶受酒精影响时，仍然会把你送上法庭。故选D。

单选题 According to the passage, which of the following is NOT TRUE?

A、 When you have been drinking heavily in the evening, you might be still over the legal limit the next morning.
B、 The more alcoholic drinks the drivers have had, the more likely they are to pass the driving test.
C、 If you have had a standard drink, you may drive an hour later.
D、 If you want to drive safely, you had better not drink at all.

【正确答案】 B

【答案解析】根据第三段前两句可知，选项A和C正确；根据第四段第一句可知，司机喝酒越多，就越不可能通过测试，选项B错误；根据第四段最后一句可知，想要安全驾驶，最好不喝酒，所以选项D正确。题干问的是哪项是不正确的。故选B。

单选题 Alcohol is a major cause of road accidents in that______.

A、 most drivers who die in these accidents have been drinking
B、 more young people die in drink-related accidents than in any other way
C、 drinking affects people' s blood alcohol concentration
D、 one in three drivers drink heavily

【正确答案】 B

【答案解析】根据第五段前两句可推知，酒驾是导致年轻人死亡的主要原因，所以酒精是引发交通事故的罪魁祸首。故选B。

单选题 What does this article urge you to remember about driving after drinking?

A、 You may be taken to court by the police.
B、 You may put yourself in danger.
C、 You may find your driving ability affected.
D、 You may put many other people at risk.

【正确答案】 D

【答案解析】根据最后一段可知，酒驾不仅危害司机自己，还影响到很多人，尤其是在车祸中受伤和丧生的人。由此可推知，本篇文章主要是为了提醒大家：不要酒后驾驶，否则会置很多人于危险之中。故选D。