题型:阅读理解 题类:常考题 难易度:普通
浙江省嘉兴市第一中学、湖州中学2018-2019学年高一下学期英语期中考试试卷(含小段音频)
Fish have different personalities which change as they experience life's highs and lows, according to British biologists.
Researchers identified different "personalities" in their fish by observing the boldness(大胆) or shyness of individuals, according to The Nature. Like people, some fish are very confident in the face of novelty or conflict, while others are silent and fearful.
The scientists selected particularly bold and shy rainbow trout(虹鳟鱼), and tested whether they changed their outlook depending on what life threw at them. They arranged some fish to fight and others to watch to see how both the participants and observers responded to victories and defeats. Winning or losing a fight, or even watching fellow fish overcome the difficulties influenced the future behavior of the creatures studied in the lab.
The researchers made fish compete with much larger or smaller opponents(对手), to ensure that they would win or lose their fights. These bold fish that won their fights tended to be even bolder when later presented with a novel food item; losing their fight caused them to be much more cautious.
Fish also learn by watching others. Bold fish watching a shy fish exploring a mystery object were much more nervous when later given a novel item for themselves.
Predictably, shy fish that won a fight also gained more confidence, but surprisingly, shy fish that lost their fights also grew bolder when exploring strange new food, Sneddon said, adding that this could be due to what she calls a "desperado effect"(亡命徒效应).
The new research suggests that animals can gradually adapt(使适应) their personalities. The results agree with the effects that life experience can have on humans.
Nowadays, the term "superfood" has become the nutritional buzzword. Simply put, these superfoods are those that provide large amount of nutrients through minimal calories.
The term "superfood" may have taken the modern food scene by storm. {#blank#}1{#/blank#} Although only popular in recent years, the concept of certain foods with special nutritional qualities has been around for a long time. The nickname "superfood" gained widespread popularity in the early 2000s as health enthusiasts and the food industry sought to identify and market foods with special health benefits. Today, it is a trend in diet.
In an age when we share all kinds of superfoods on social media, ignoring the phenomenon is impossible. {#blank#}2{#/blank#} It's easy to understand. These nutritional superheroes offer a perfect combination of substance and style, tailored for the digital generation. Their lively colours, exotic origins and impressive nutrient profiles make them candidates for the next viral food trend.
{#blank#}3{#/blank#} They offer a lifestyle that reflects the global shift towards a more healthconscious society. As the world wrestles with an increasing burden of diseases and the fast pace of modern life, people are seeking dietary solutions from superfoods. {#blank#}4{#/blank#} They are rich in vitamins and minerals that can strengthen your immune system, avoid chronic diseases, and improve your overall wellbeing. Another remarkable benefit is their potential to promote heart health, helping you build a strong heart. Don't forget their role in skin regeneration. The antioxidants(抗氧化物) can provide a natural glow, reduce skin ageing and fight against skin conditions.
{#blank#}5{#/blank#} Superfoods, while nutritionally dense, should be part of a comprehensive diet rather than the only guarantee of our health.
A. What is driving the trend? B. What are nutritional superheroes? C. They bring appearances to the table as well. D. Superfoods promise more than just a meal. E. No single food can cure all diseases. F. They seem tailormade to deal with these concerns. G. However, its roots can be traced back to early 20thcentury nutrition literature. |
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