Fish have different personalities which change as they experience life’s highs and lows.a(chǎn)ccording to British biologists.
Researchers identified different“personalities” in their fish by observing the boldness or shyness of individuals,according to The Nature.Like people,some fish are very confident in the face of novelty(新奇事物)or conflict;while others are silent and fear.
The scientists selected particularly bold and shy rainbow trout,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.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 novelty 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”(亡命徒效應(yīng)).
The new research suggests that animals can gradually adapt their personalities.The results echo the effects that life experience can have on human.
1.What does.the underlined word“creatures’’probably refer to?
A.Fish. B.Participants. C.Observers. D.Researchers.
2.The third paragraph of the text is mainly about—————.
A.a(chǎn) conclusion of the research
B.a(chǎn)n explanation of fish characters
C.a(chǎn) statement of the experiment
D.a(chǎn) description of fish fights
3.What can we know from the research?
A.Bold losing fish become—e bolder when presented With a novel food item.
B.Losing their fights causes the bold fish to be much more courageous.
C.Bold fish watching a shy fish exploring a mystery get less nervous.
D.Shy fish losing fights grow more confident in exploring new food.
4.What’s the main idea of the text?’
A.Fish have stress in the fierce fights.
B.Fish care about winning or losing a fight.
C.Fish have adaptable personalities.
D.Fish can learn a lot by watching others.
1.A
2.C
3.D
4.C
【解析】
試題分析:文章介紹了一項(xiàng)研究的發(fā)現(xiàn),魚在生活的起伏的時(shí)候性格是會變化的。文章具體介紹了研究的過程和結(jié)果。
1.猜詞題:這篇文章講的是魚的事情,creatures指的是fish。選A
2.段落大意題:第三段講的是科學(xué)家選了一些勇敢的或害羞的鱒魚,看看贏和輸對它們有什么影響。選C
3.細(xì)節(jié)題:從第六段的句子:shy fish that lost their fights also grew bolder when exploring strange new food,可知害羞的魚在輸了比賽后會更加有自信。選D
4.主旨題:從文章的第一段的句子:Fish have different personalities which change as they experience life’s highs and lows.可知魚在生活的起伏的時(shí)候性格是會變化的。選C
考點(diǎn):考查科普類短文
點(diǎn)評:文章還是有些難度難度的,但只要抓住主旨和文章的結(jié)構(gòu),就很容易理解。在解答這類問題時(shí)要求學(xué)生抓住題干文字信息,采用針對性方法進(jìn)行閱讀,答案在文章中可以直接找到。要注意的往往是主旨題。提高概括能力。
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The study took ten years. The researchers gathered records from fishing businesses and governments around the world. The magazine Nature published the findings.
The scientists say the common method called long line fishing ravages the populations of large fish. This method involves many fishing lines connected to one boat. These wires can be nearly one hundred kilometers long. They hold thousands of sharp metal hooks to catch fish.
Long line fishing is especially common in the Japanese fishing industry. Records showed that Japanese boats used to catch about ten fish for every one hundred hooks. But long line fishing boats now might only catch one fish per hundred hooks.
The scientists say industrial fishing can destroy groups of fish much faster than in the past. The study suggests that whole populations can disappear almost completely from new fishing areas within ten to fifteen years.
Ransom Myers and Boris Worm of Dalhousie University in Nova Scotia led the study with the University of Kiel in Germany. Worm says the destruction could lead to a complete reorganization of ocean life systems. Meyers says the decreased numbers of large fish are not the only worry. He says even populations that are able to reproduce do not get the chance to live long enough to grow as big as their ancestors. He says not only are there fewer big fish, but also they are smaller than those of the past.
It’s the end of this program ,Thank you for your listening.
What’s the best title for the passage?
A. Big fish are disappearing B. Long—line fishing in Japan
C. The harm of industrial fishing D. Stop killing big fish
Which of the following DOESN’T show that the populations of big fish are smaller than before?
A. Fish can disappear almost completely from new fishing areas.
B. Now long—line fishing boats might catch one fish per hundred hooks.
C. Fish now don’t have the chance to grow big enough.
D. Scientists spent ten years studying the populations of large fish.
What can we learn from the passage?
A. The number of big fish started to drop greatly about fifty years ago.
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A.Recover. | B.Fight. | C.Hunt. | D.Live. |
A.catches smaller fish in the water | B.digests the smaller fish in its body |
C.can jump so high to escape its enemies | D.uses acid to break down the protein |
A.Trypsin. | B.Acid | C.The stomach. | D.Protein in its body. |
A.the longtom can make acid easily |
B.the longtom often waste energy |
C.the longtom’s high-protein food helps its unique way of consuming food. |
D.meat –eating fish have higher levels of trypsin in their bodies than plant-eating fish |
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The scientists say industrial fishing can destroy groups of fish much faster than in the past. The study suggests that whole populations can disappear almost completely from new fishing areas within ten to fifteen years.
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A.A story book. |
B.A business magazine. |
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D.An economic survey. |
A.longline fishing method is used |
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C.mankind destroys the environment |
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B.Longline boats now might catch fewer fish every one-hundred hooks. |
C.Fish even able to reproduce don’t have the chance to live longer. |
D.Japanese boats could catch about ten fish for every 100 hooks. |
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D.Modern Fishing Methods |
A.In the 1960s. | B.In the 1970s. | C.In the 1980s. | D.In the 1990s. |
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D.the octopus’s deadly hunting method
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