广东专升本高等数学如何复习
很多考生在高数这个科目上比较薄弱,甚至连复习起来都不知道如何下手。今天昇学小编给大家简答的说一说广东专升本高等数学如何复习,考生可以参考。 循序渐进,抓基础。 数学是比较重视基础的学科,所以抓...
阅读理解:
Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies need. It has been demonstrated that rats will, when given a choice over a period of time, prefer water with vitamins to water without vitamins even though there is no difference in taste or smell between the two water bottles. When a fragrant flavor was added to the vitamin enriched fluid, the rats did seem to develop a taste for it and kept drinking it, even after the vitamins were switched to the clear water. In time, however, they broke the habit and went back to where the necessary vitamins were.
In a classic experiment, babies of 6 to 12 months old were placed in a cafeteria feeding arrangement, with a wide selection of baby food before them. They were given whatever food they pointed to or appeared interested in. At first they showed some unusual eating patterns, but over a period of time they managed to select well-balanced diet.
So, in selecting food, rats and babies do seem to know and act on what's best for them. Apparently, there is a kind of “body wisdom”, which humans soon lose. Most of us do not eat as wisely as we could. Many of our food preferences are culturally determined and influenced by long-established habits. Some people eat foxes, dogs and blackbirds, while we eat cows and pigs. So what people eat and how much they eat seem to be greatly influenced by what is going on around them.
问题:
1. In the experiment on rats, a fragrant flavor was added to the rats' drinking water to _____.
A.encourage rats to drink vitamin enriched water
B.find out rats' preference in flavor
C.test whether rats know which drink is good for them
D.demonstrate that vitamins are tasteless
【参考答案】C
[考点]推理判断题
【精析】C 根据第一段最后两句“When a fragrant flavor was added to the vitamin enriched fluid, the rats did seem to develop a taste for it and kept drinking it, even after the vitamins were switched to the clear water. In time, however, they broke the habit and went back to where the necessary vitamins were.”可推知,在针对老鼠的实验中,将带有芳香的味道加入老鼠喝的水中是为了测试老鼠是否知道哪种水对它们有好处。故选C。
2.The expression “the habit” in Paragraph 1 refers to drinking water which ______.
A.has no smellB.is tastelessC.has vitaminsD.is flavored
【参考答案】D[考点]词语理解题
【精析】D 根据上文中的“When a fragrant flavor was added to the vitamin enriched fluid, the rats did seem to develop a taste for it and kept drinking it, even after the vitamins were switched to the clear water.”可知,当富含维生素的水中加入香味时,即使将维生素转换为清水,老鼠似乎开始喜欢并一直饮用它。再根据第一段最后一句“In time, however, they broke the habit and went back to where the necessary vitamins were.”可知,随着时间的推移,它们打破了喝加入香味的水的这种习惯,重新饮用含有必需的维生素的水。由此可推知,the habit指的是“喝加入香味的水”。故选D。
3.According to the passage, adults' eating habits differ from those of babies because ______.
A.adults know better than babies what kind of food is good for their health
B.adults usually cannot resist the temptation of various delicious foods
C.adults' eating habits are closely related to the social and cultural customs
D.adults have more choices of food than babies in eating patterns
【参考答案】C
[考点]推理判断题
【精析】C 根据最后一段倒数第三句“Many of our food preferences are culturally determined and influenced by long-established habits.”可推知,成人的饮食习惯与婴儿不同,因为成人的饮食习惯与社会和文化风俗密切相关。故选C。
4. The author implies in the passage that most of us______ .
A.eat a balanced diet
B.choose the food that is of nutrition
C.have the habits influenced by the surroundings
D.like to eat the food with a fragrant flavor
【参考答案】C
[考点]推理判断题
【精析】C 根据最后一段最后一句“So what people eat and how much they eat seem to be greatly influenced by what is going on around them.”可推知,我们的饮食习惯受到周围环境的影响。其他三项文中均未提及。故选C。
5.As far as their eating habits are concerned, babies and rats are similar in that______.
A.both have the wisdom to choose a balanced dietB.both prefer flavored food and drinkC.both have the same eating patternsD.both develop a taste for the same kinds of flavors
【参考答案】A
[考点]推理判断题
【精析】A 根据第二段最后一句“At first they showed some unusual eating patterns, but over a period of time they managed to select well-balanced diet.”以及最后一段第一、二句“So, in selecting food, rats and babies do seem to know and act on what's best for them. Apparently, there is a kind of 'body wisdom'…”可推知,婴儿和老鼠在选择食物方面是相似的,都有着均衡饮食的智慧。故选A。
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