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题目
experimenting on mice. They are studying the relationship between diet and health. At this time, over one hundred experiments are being done in this laboratory.
In one of these experiments, the scientists are studying the relationship between the amount of food the mice eat and their health. The mice are in three groups. All three groups are receiving the same healthy diet. But the amount of food that each group is receiving is different. The first group is eating one cup of food each day, the second group is eating two cups, and the third group of mice is eating three cups.
After three years, the healthiest group is the one that is only eating one cup of food each day. The mice in this group are thinner than normal mice. But they are more active. Most of the day, they are running, playing with one another, and using the equipment in their cages. Also, they are living longer. Mice usually live for two years. Most of the mice in this group are still alive after three years.
The second group of mice is normal weight. They are healthy, too. They are active, but not as active as the thinner mice. But they are only living about two years, not the three years or more of the thinner mice.
The last group of mice is receiving more food than the other two groups. Most of the day, these mice are eating or sleeping. They are not very active. These mice are living longer than the scientists thought - about a year and a half. But they aren't as healthy. They're sick more often than the other two groups.
(1)、The scientists in the laboratory are studying the relationship between the amount of food and diet.
A：T
B：F
(2)、The first two groups are receiving the most food.
A：T
B：F
(3)、The first group is the thinnest because they do not have a healthy diet.
A：T
B：F
(4)、Normal mice usually live for two years.
A：T
B：F
(5)、The text tells us that people who eat less and exercise more will live longer.
A：T
B：F
更多“One way that scientists learn about man is by studying animals, such as mice and monke”相关的问题
第1题
Dreams (梦 ) may be more important than sleep、We all need to dream," some scientists say、Dreams take up about one quarter of our sleeping time、People have several dreams each night、Dreams are like short films、They are usually in colour、Some dreams are like old films、They come to us over and over again、That may be because the dreamer is worrying about something、Dreaming may be a way of trying to find an answer、Some people get new ideas about their work from dreams、They may have been thinking about their work all day、These thoughts can carry over into dreams.
Sometimes we wake up with a good feeling from a dream、But often we can't remember the dream、Dreams can disappear (消失) quickly from memory (记忆)、Too much dreaming can be harmful (有害的).The more we sleep, the longer we dream、The mind is hard at work when we dream、That is why we may have a long sleep and still wake up tired.
(1).If we sleep 8 hours a day, how many hours we will dream()
A、1
B、2
C、3
D、4
(2).Why do some people often dream about their work()
A、Because they are tired in the daytime
B、Because they are not interested in their work
C、Because they may be thinking about their work all day
D、Because they have too much work to do
(3).Which of the following is true()
A、We'll be relaxed after a long dreaming
B、When we dream, our mind is also resting
C、Dreams may disappear soon, we can remember none of them
D、Sometimes we may have the same dream several times
(4).When we dream,_________.
A、our mind still works
B、we remember something happened before
C、we start to thinking about the work
D、we have new ideas
(5).The main idea of the story is that _________
A、what dream is
B、people like to sleep
C、dreams are live films
D、we always remember dreams
第2题
A.The Economist
B.New Scientist
C.Newsweek
D.The Spectator
第5题
第8题
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