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[originaltext]Have you ever felt like you would do just about anything to satis
[originaltext]Have you ever felt like you would do just about anything to satis
游客
2024-01-23
56
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问题
Have you ever felt like you would do just about anything to satisfy your hunger? (16) A new study in mice may help to explain why hunger can feel like such a powerful motivating force. In the study, researchers found that hunger outweighed other physical drives, including fear,thirst and social needs.
To determine which feeling won out, the researchers did a series of experiments. In one experiment, the mice were both hungry and thirsty. When given the choice of either eating food or drinking water, the mice went for the food, the researchers found. However, when the mice were well-fed but thirsty, they opted to drink, according to the study. In the second experiment meant to pit the mice’s hunger against their fear. Hungry mice were placed in a cage that had certain fox-scented areas and other places that smelled safer (in other words, not like an animal that could eat them) but also had food. (17) It turned out that when the mice were hungry, they ventured into the unsafe areas for food. But when the mice were well-fed they stayed in areas of the cage that were considered safe. Hunger also outweighed the mice’s social needs, the researchers found. (18) Mice are usually social animals and prefer to be in the company of other mice, according to the study. When the mice were hungry, they opted to leave the company of other mice to go get food.
Questions 16 to 18 are based on the passage you have just heard.
16. What is the researchers’ purpose in carrying out the series of experiments with mice?
17. In what circumstances do mice venture into unsafe areas?
18. What is said about mice at the end of the passage?
选项
A、When they are hungry.
B、When they are thirsty.
C、When they smell food.
D、When they want company.
答案
A
解析
浏览四个选项,从选项中表示时间的连词when以及hungry,thirsty,smell food,company等词可推测,此题与做某事的时机有关。题干问的是在什么情况下,老鼠会冒险闯入不安全区域。短文后半部分提到,实验结果表明当老鼠处于饥饿状态时,它们会为了食物冒险闯入不安全区域,故答案为A。短文后半部分还提到,当老鼠吃饱后,它们会待在笼子的安全区域内。由此可知,B项(当它们口渴的时候)、C项(当它们嗅到有食物的时候)和D项(当它们需要陪伴的时候)这三种情况均不会使老鼠冒险闯入不安全区域,故排除。
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