7．Taste is such a subjective matter that we don't usually conduct preference tests for food．The most you can say about anyone's preference，is that it's one person's opinion．But because the two big cola companies-Coca-Cola and Pepsi Cola are marketed so aggressively，we have wondered how big a role taste preference actually plays in brand loyalty．We set up a taste test that challenged people who identified themselves as either Coca-Cola Classic or Pepsi fans：find your brand in a blind tasting．
We invited staff volunteers who had a strong liking for either Coca-Cola Classic or Pepsi，Diet （低糖的） Coke，or Diet Pepsi．These were people who thought they'd have no trouble telling their brand from the other brand．
We eventually located 19regular cola drinkers and 27diet cola drinkers．Then we fed them four unidentified samples of cola one at a time，regular colas for the one group，diet versions for the other．We asked them to tell us whether each sample was Coke or Pepsi，then we analyzed the records statistically to compare the participants'choices with what mere guess-work could have accomplished．
Getting all four samples right was a tough test，but not too tough，we thought，for people who believed they could recognize their brand．In the end，only 7out of 19regular cola drinkers correctly identified their brand of choice in all four trials．The diet-cola drinkers did a little worse-only 7of 27identified all four samples correctly．
While both groups did better than chance would predict，nearly half the participants in each group made the wrong choice two or more times．Two people got all four samples wrong．Overall，half of the participants did about as well on the last round of tasting as on the first，so tiredness，or taste burnout，was not a factor．Our preference test results suggest that only a few Pepsi participants and Coke fans may really be able to tell their favorite brand by taste and price．
28．It is implied in the first paragraph thatC．
A．the purpose of taste tests is to promote the sale of colas
B．the improvement of quality is the chief concern of the two cola companies
C．the competition between the two colas is very strong
D．blind tasting is necessary for identifying fans
29．According to the passage the preference test was conducted in order toA．
A．find out the role taste preference plays in a person's drinking
B．reveal which cola is more to the liking of the drinkers
C．show that a person's opinion about taste is mere guess-work
D．compare the ability of the participants in choosing their drinks
30．The word'burnout"underlined in Paragraph Five，refers to the state ofD．
A．being seriously burnt in the skin
B．being unable to burn for lack of fuel
C．being badly damaged by fire
D．being unable to function because of excessive use
31．The author's purpose in writing this passage is toA．
A．show that taste preference is highly subjective
B．argue that taste testing is an important marketing strategy
C．emphasize that taste and price are closely related to each other
D．recommend that blind tasting be introduced in the quality control of colas．
分析 文章提出味觉偏好是十分主观的，并且通过一些实验来证明个人对味觉的感受带有主观性．
解答 28-31 CADA
28．C 推理题．由第1段第3句中Coca Cola and Pepsi Cola are marketed so aggressively可知两大公司竞争极为激烈，故选C．
29．A 推理题．第1段第3句提到we have wondered how big a role taste preference actually plays in brand loyalty，由于两大可乐公司的营销如此具有攻击性，我们不由想知道对味道的偏好在品牌忠诚度上起多大的作用，A与之相符．
30．D 猜测词意题．文章最后一段第3句中，fatigue与taste bum out之间用or连接，表明两者语义比较接近，对比四个选项，D符合，表示味觉疲劳、麻木．
31．A 主旨大意题．文章第1句Taste is such a subjective matter that we don't usually conduct preference tests for 表明味觉偏好是十分主观的，且下文讲到的实验结果也更进一步印证了该观点，故选A．
点评 推理判断题要求在理解原文表面文字信息的基础上，做出一定的推理判断，从而得到文章的隐含意义和深层意义．推理判断题所涉及的内容可能是文中的某一句话，也可能是某几句话，所以，推理题的答案只能是根据原文表面文字信息一步推出的答案：即对原文某一句话或某几句话所作的同义改写或综合．推理判断题的题干中通常含有infer，suggest，imply，conclude indicate等标志性词语． 这种题型主要包括细节判断题、态度观点推断题、写作意图推断题、文章出处判断题和猜测想象推断题．
