5.Can you believe your eyes?A recent experiment suggests that the answer to that question may depend on your age.
Martin Doherty,a psychologist at the University of Stirling in Scotland,led the team of scientists.In this experiment,Doherty and his team tested the perception(觀察力) of some people,using pictures of some orange circles.The researchers showed the same pictures to two groups of people.The first group included 151 children aged 4 to 10,and the second group included 24 adults aged 18 to 25.
The first group of pictures showed two circles alone on a white background.One of the circles was larger than the other,and these people were asked to identify the larger one.Four-year-olds identified the correct circle 79 percent of the time.Adults identified the correct circle 95 percent of the time.
Next,both groups were shown a picture where the orange circles,again of different sizes,were surrounded by gray circles.Here's where the trick lies in.In some of the pictures,the smaller orange circle was surrounded by even smaller gray circles-making the orange circle appear larger than the other orange circle,which was the real larger one.And the larger orange circle was surrounded by even bigger gray circles-so it appeared to be smaller than the real smaller orange circle.
When young children aged 4 to 6 looked at these tricky pictures,they weren't fooled-they were still able to find the bigger circle with roughly the same accuracy(準(zhǔn)確性) as before.Older children and adults,on the other hand,did not do as well.Older children often identified the smaller circle as the larger one,and adults got it wrong most of the time.
As children get older,Doherty said,their brains may develop the ability to identify visual(視覺的) context.In other words,they will begin to process the whole picture at once:the tricky gray circles,as well as the orange circle in the middle.As a result,they're more likely to fall for this kind of visual trick.

25.Doherty and his team of scientists did an experiment to evaluateC.
A.children's and adults'eye-sight             
B.children's and adults'brains
C.people's ability to see accurately            
D.the influence of people's age
26.When asked to find the larger circle,A.
A.children at 4got it right about 79% of the time with gray ones around
B.only adults over 18got it right 95% of the time with gray ones around
C.children at 6got it wrong 79% of the time with no gray ones around
D.a(chǎn)dults got it right most of the time with gray ones around
27.According to the passage,we can know thatC.
A.a(chǎn) smaller orange circle appears bigger on a white background
B.a(chǎn)n orange circle appears bigger than a gray one of the same size
C.a(chǎn) circle surrounded by bigger ones looks smaller than its real size
D.a(chǎn) circle surrounded by other circles looks bigger than its real size
28.Why are younger children not fooled?D.
A.Because they are smarter than older children and adults.
B.Because older people are influenced by their experience.
C.Because people's eyes become weaker as they grow older.
D.Because their brain can hardly notice related things together.

分析 這是一篇說明文閱讀,簡要說明研究人員如何用橙色圓圈測(cè)試兩組人觀察力的過程.

解答 25.C  推理判斷題,根據(jù)第一段Can you believe your eyes?A recent experiment suggests that the answer to that question may depend on your age.可知科學(xué)家用一個(gè)實(shí)驗(yàn)來證明人們眼睛看的準(zhǔn)確的能力,故選C.
26.A  細(xì)節(jié)理解題,根據(jù)第三段Four-year-olds identified the correct circle 79 percent of the time.Adults identified the correct circle 95 percent of the time.可知四歲的孩子確定正確的圓圈是時(shí)間的百分之79,故選A.
27.C  細(xì)節(jié)理解題,根據(jù)第四段And the larger orange circle was surrounded by even bigger gray circles-so it appeared to be smaller than the real smaller orange circle.可知被大圓圈包圍的圓看起來比實(shí)際的小,故選C.
28.D  推理判斷題.根據(jù)they were still able to find the bigger circle with roughly the same accuracy as before.描述,可知小孩子沒有被愚弄的原因是他們的大腦幾乎不會(huì)注意到它們的聯(lián)系,故選D

點(diǎn)評(píng) 本文是一個(gè)科教類閱讀理解,題目涉及多道細(xì)節(jié)理解題,做題時(shí)結(jié)合原文和題目有針對(duì)性的找出相關(guān)語句進(jìn)行仔細(xì)分析,結(jié)合選項(xiàng)選出正確答案.推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案,切忌胡亂猜測(cè),一定要做到有理有據(jù).

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