Q28:

In Berinia, the age at which people could begin to drink alcohol legally used to be 18. In1990, in an attempt to reduce alcohol consumption and thereby to reduce alcohol-relatedtraffic deaths among Berinians under 21, the legal drinking age was raised to 21.Alcohol-related traffic deaths among people under 21 have decreased significantly since1990. Nevertheless, surveys show that people in that age-group drink just as much　alcohol as they did before 1990.

Which of the following, if true of Berinia, most helps to resolve the apparent discrepancy?

A. For the population as a whole, annual alcohol consumption is no lower now thanit was in 1990.

B. Alcohol consumption away from home, for example in bars and restaurants, is　much lower among people under 21 than it was in 1990.

C. The proportion of people under 21 who own a car is higher now than it was in　1990.

D. Alcohol consumption is lower among people under 21 than among adults in most　other age-groups.

E. Alcohol-related traffic deaths among people over 21 have increased slightly since　1990.

ANS:B

但我不能了解最後一句話的結論跟原文之間有什麼discrepancy?感覺上Ｂ的答案好像是一種假設,但除了Ｂ沒有更好的答案了

原文说，新措施实施后，死的人少了很多。说明新措施是有效的；（这里文中有一个潜在推理或者假设：新措施有效是通过降低了21岁以下人的喝酒量来实现的。）最后一句说实际上21岁以下的人喝的酒并没有减少。---- 与这个潜在推理/假设矛盾。（discrepancy).

B说在酒吧和餐馆里喝酒的人少了很多。这里有一个推测和一个假设，推测，新措施后，相当一部分喝酒的人从酒吧和餐馆转移到了家里；假设，在家里喝酒不会受新措施限制。基于原文喝酒的总量没变，推测成立。这个假设算是一个COMMON SENSE,所以选B.