单选题 Trying to get Americans to eat a healthy diet is a frustrating business. Even the best- designed public-health campaigns cannot seem to compete with the tempting flavors of the snack-food and fast-food industries and their fat-and sugar-laden products. The results are apparent on a walk down any American street--more than 60% of Americans are overweight, and a full quarter of them are overweight to the point of obesity.
Now, health advocates say, an ill-conceived redesign has taken one of the more successful public-health campaigns--the Food Guide Pyramid--and rendered it confusing to the point of uselessness. Some of these critics worry that America' s Department of Agriculture caved in to pressure from parts of the food industry anxious to protect their products.
The Food Guide Pyramid was a graphic which emphasizes that a healthy diet is built on a base of grains, vegetables and fruits, followed by ever-decreasing amounts of dairy products, meat, sweets and oils. The agriculture department launched the pyramid in 1992 to replace its previous program, which was centered on the idea of four basic food groups. The" Basic Four" campaign showed a plate divided into quarters, and seemed to imply that meat and dairy products should make up half of a healthy diet, with grains ,fruits and vegetables making up the other half. It was replaced only over the strenuous objections of the meat and dairy industries.
The old pyramid was undoubtedly imperfect. It failed to distinguish between a doughnut and a whole-grain roll, or a hamburger and a skinless chicken breast, and it did not make clear exactly how much of each foodstuff to eat. It did, however, manage to convey the basic idea of proper proportions in an easily understandable way. The new pyramid, called" My Pyramid", abandons the effort to provide this information. Instead, it has been simplified to a mere logo. The food groups are replaced with unlabelled, multi-colored vertical stripes which, in some versions, rise out of a cartoon jumble of foods that look like the aftermath of a riot at a grocery store. Anyone who wants to see how this translates into a healthy diet is invited to go to a website, put in their age, sex and activity level, and get a custom-designed pyramid, complete with healthy food choices and suggested portion sizes. This is fine for those who are motivated, but might prove too much effort for those who most need such information.
Admittedly, the designers of the new pyramid had a tough job to do. They were supposed to condense the advice in the 84-page United States' Dietary Guidelines into a simple, meaningful graphic suitable for printing on the back of a cereal box. And they had to do this in the face of pressure from dozens of special interest groups--from the country' s Potato Board, which thought potatoes would look nice in the picture, to the Mmond Board of California, which felt the same way about almonds. Even the National Watermelon Promotion Board and the California Avocado Commission were eager to see their products recognized.
Nevertheless ,many health advocates believe the new graphic is a missed opportunity. Mthough officials insist industry pressure had nothing to do with the eventual design, some critics suspect that political influence was at work. On the other hand, it is not clear how much good even the best graphic could do. Surveys found that 80% of Americans recognized the old Food Guide Pyramid--a big success in the world of public-health campaigns. Yet only 16% followed its advice.

单选题 "Trying to get Americans to eat a healthy diet is a frustrating business" can be easily proved by the fact that
[A] public-health campaigns cannot compete with tempting flavors.
[B] snack-food and fast-food industries are flourishing in the US.
[C] most food in America are profoundly rich in fat and sugar.
[D] fat people account for a large proportion of American population.
【正确答案】 D
【答案解析】[解题思路] 事实细节题。文章第一段最后一句说:走在美国街道上便可以很明显地看出——超过60%的美国人都体重超标,而且其中1/4的人到了极度肥胖的地步。因此,最简单的证据就是选项[D]“肥胖人群在美国人口中占有较大比例”。
单选题 The phrase "caved in" ( paragraph 2) most probably means
[A] yielded. [B] entered. [C] promised. [D] criticized.
【正确答案】 A
【答案解析】[解题思路] 含义题。文章第二段讲:倡导健康食谱的人说一个居心叵测的新食谱剽窃了以前更为成功的“食物金字塔”健康运动并使得这一食物金字塔变得非常令人费解甚至到了毫无 用处的地步。一些这样的批评者担心美国农业部面对急于保护自己产品的食品工业的压力______。显然只有“屈服”在意义上说得通。另外,只有选项[A]yielded能和后面的介词to搭配。
单选题 Which of the following is NOT TRUE about the Food Guide Pyramid in 1992?
[A] It stresses the value of grains, vegetables and fruits.
[B] It places emphasis on the four basic food groups.
[C] It rejects higher proportion of meat, sweets and oils.
[D] It met objections from meat and dairy industries.
【正确答案】 B
【答案解析】[解题思路] 判断题。文章第三段讲:农业部1992年发布了这一金字塔图谱来替代以前的以四个基本食物类别为基础的食物构成图。证明1992年的图谱不是以四个基本食物类别为重点的,因此选[B]。
单选题 The biggest problem with the new pyramid seems to be that
[A] it fails to identify the proper proportion of different food groups.
[B] it fails to distinguish between a hamburger and a chicken breast.
[C] it involves too much on-line work to benefit those who need it.
[D] it involves unlabelled, multi-colored strips out of a cartoon jumble.
【正确答案】 C
【答案解析】[解题思路] 事实细节题。文章第四段最后一句说:这对那些愿望很强的人来说还可以,但是对那些需要这些信息的大多数人来说工作量就太大了。证明新的图谱的最大问题在于选项[C]“需要过量的网上工作,而不能让那些需要的人获益”。
单选题 It can be inferred from the text that
[A] the effect of a well designed graph might be very small.
[B] the new pyramid is definitely doomed to be a failure.
[C] political influence will never be waved from the design.
[D] the Potato Board of the country is very influential.
【正确答案】 A
【答案解析】[解题思路] 推理题。文章最后一段最后几句说:另一方面,即便食谱是最好的,人们也不清楚它到底能产生多大功效。调查显示80%的美国人认同以前的“食物金字塔”,但只有16%的人按照上面的要求去做。由此可见选项[A]“设计良好的食谱的功效也可能很小”为正确答案。