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2011年职称英语理工类A级考试真题(部分)

作者:   发布时间:2011-03-28  来源:网络
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    下面是2011年职称英语理工类A级考试试题,育路教育网特别为您搜集整理,内容如下:

 Some People Do Not Taste Salt Like Others(A级)(无换题现象)

  Low-salt foods may be harder for some people to like than others, according to a study by a Penn State College of Agricultural Sciences1 food scientist. The research indicates that genetic factors influence some of the difference in the levels of salt we like to eat.

  Those conclusions are important because recent, well-publicized efforts to reduce the salt content in food2 have left many people struggling to accept fare that simply does not taste as good to them as it does to others3, pointed out John Hayes, assistant professor of food science, who was lead investigator? on the study.

  Diets high in salt can increase the risk of high blood pressure and stroke. That is why public health experts and food companies are Working together on ways to help consumers lower salt intake through foods that are enjoyable to eat. This study increases understanding of salt preference and consumption.

  The research involved 87 carefully screened participants who sampled salty foods such as soup and chips, on multiple occasions, spread out over weeks5. Test subjects were 45 men and 42 women, reportedly healthy, ranging in age from 20 to 40 years. The sample was composed of individuals who were not actively modifying their dietary intake and did not smoke cigarettes. They rated the intensity of taste on a commonly used scientific scale, ranging from barely detectable to strongest sensation of any kind.

  "Most of us like the taste of salt. However, some individuals eat more salt, both because they like the taste of saltiness more, and also because it is needed to block other unpleasant tastes in food," said Hayes. "Supertasters, people who experience tastes more mtensely, consume more salt than nontasters do. Snack foods have saltiness as their primary flavor, and at least for these foods, more is better, so the supertasters seem to like them more. "

  However, supertasters also need higher levels of salt to block unpleasant bitter tastes in foods such as cheese, Hayes noted. "For example, cheese is a wonderful blend of dairy flavors from fermented, milk, but also bitter tastes from ripening that are blocked by salt," he said. "A supertaster finds low-salt cheese unpleasant because the bitterness is too pronounced6.

  Hayes cited research done more than 75 years ago by a chemist named Fox and a geneticist named Blakeslee, showing that individuals differ in their ability to taste certain chemicals. As a result, Hayes explained, we know that a wide range in taste acuity exists, and this variation is as normal as variations in eye and hair color.

  "Some people, called supertasters, describe bitter compounds as being extremely bitter, while others, called nontasters, find these same bitter compounds to be tasteless or only weary bitter," he said. "Response to bitter compounds is one of many ways to identify biological differences in food preference because supertasting7 is not limited to bitterness. (476)

  1. In paragraph 2, John Hayes points out that在第二段中,约翰.海斯指出了___________________。
   A. it is good to health to eat food without salt.吃无盐食物对身体有好处。
   B. many people reject low-salt food completely..有些人完全反对含盐量低的食物。
   C. many people accept low-salt tasteless food reluctantly有很多人不情愿的去接受低盐度的食物。(正确答案)
   D. food with reduced salt tastes better..含盐量低的食物更好吃。

  2. The fourth paragraph describes briefly 第四段简要的介绍了_________________。
   A. how to select subjects and what to do in the research. 怎样选择被测试者以及研究中做了什么。(正确答案).
   B. how to identify supertasters and nontasters.怎样定义超重口味的人和没口味的人。
   C. why to limit the number of subjects to 87 persons.为什么把人的数量限制在87个。
   D. why to select more male subjects than female ones.为什么挑选更多的男性。

  3. The article argues that supertasters文章指出口味超重的人________________。
   A. like the taste of saltiness to block sweet tastes in food.喜欢用咸味阻挡食物里的甜味。
   B. like snack foods as saltiness is their primary flavor. 快餐食品是他们最主要的食品。(正确答案)
   C. consume less salt because they don't like intensive tastes.吃更少的盐,因为它们不喜欢重口味。
   D. like to share salty cheese with nontasters.喜欢和没口味的人分享咸奶酪。

  4. Which of the following applies to supertasters in terms of bitter taste? 对于口味超重的人,下列哪项比较适用于苦味?
   A. They like bitterness in foods as well as saltiness.他们喜欢食物中的苦和咸。
   B. They like high-salt cheese as it has intense bitter taste.他们喜欢很咸的奶酪,因为它有强烈的苦味。
   C. They prefer high-salt cheese, which tastes less bitter.. 他们更喜欢高盐度的而不是很苦的奶酪。(正确答案)
   D. They prefer high-salt cheese as it is good to health.他们更喜欢很咸的奶酪,因为它对身体更健康。

  5. What message do the last two paragraphs carry'? 文章的最后两段所带有的信息是____。
   A. Taste acuity is genetically determined. 一般情况下,味觉的敏感度由基因决定。(正确答案)
   B. Taste acuity is developed over time after birth.自从出生后,味觉的敏感度一直在提高。
   C. Taste acuity is related to one's eye and hair color.味觉的敏感度和一个人的眼睛和头发的颜色有关。
   D. Taste acuity is still a mysterious subject in science.味觉的敏感度在科学上仍然是一个谜。

Young Adults Who Exercise Get Higher IQ Scores(A级)

  Young adults who are fit have a higher IQ and are more likely to go on to university, reveals a major new study __1__ at the Sahlgrenska Academy and Sahlgrenska University Hospital.

  The results were recently published in the Proceedings of the National Academy of Sciences (PNAS). The study involved 1.2 million Swedish men doing military service who were born between 1950 and 1976. The research group analyses the results of both physical and IQ tests the youngsters _2___ right after they started serving the army.

  The study shows a clear link between good physical __3__ and better results for the IQ test. The strongest links are for _4__ thinking and verbal comprehension. But it is only fitness that _5___ a role in the results for the IQ test, and not strength. “Being fit means that you also have good heart and lung _6__ and that your brain gets plenty of _7__,” says Michael Nilsson, professor at the Sahlgrenska Academy and chief physician at the Sahlgrenska University Hospital. “This may be one of the reasons _8__ we can see a clear link with fitness, but not with muscular _9__. We are also seeing that there are growth factors that are important.”

   By analyzing data for twins, the researchers have been able to _10___ that it is primarily environmental factors and not genes that explain the link between fitness and a _11__ IQ.

   “We have also shown that those youngsters who _12__ their physical fitness between the ages of 15 and 18 increase their cognitive performance,” says Maria Aberg, researcher at the Sahlgrenska Academy and physician at Aby health centre. “This being the case, physical education is a subject that has an important place in schools, and is an absolute must if we want to _13___ maths and other theoretical subjects.”

   The researchers have also compared the results from fitness tests _14__ national service with the socio-economic status of the men later in life. Those who were fit at 18 were more _15___ to go into higher education, and many secured more qualified jobs.

  1. A carried B was carried C carried out D carrying out
   2. A made B make C taking D took
   3. A fit B fitness C health D excises
   4. A logical B critical C typical D positive
   5. A holds B makes C plays D play
   6. A capacity B disease C shape D treatment
   7. A change B hydrogen C oxygen D memory
   8. A what B why C how D where
   9. A exercise B training C strength D movement
   10. A determine B tell C determining D improve
   11. A moderate B average C lower D higher
   12. A ignore B improve C like D determine
   13. A be good in B study well C do good in D do well in
   14. A before B after C without D during
   15. A carefully B likely C secretly D happily

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