People who cannot tell all colors apart are said to be color-blind. Most color-blind people can see yellows and blues, but confuse reds with green. It is very rare for a person to be blind to all colors, but they may see everything in shades of black, white and gray.
It is interesting to point out that many color-blind people don’t even realize that they are color-blind, they don’t know that the colors they are seeing and naming are not the actual colors that people with normal vision can see. This can be dangerous when a color-blind person confuses the red and green of a traffic light.
Color blindness is thought to be inherited(遺傳)and although doctors have tested color blindness, there is no cure to treatment for it.
小題1:There are four cards here, and each has two colors. Which card’s colors do you think a color-blind person can tell correctly?
A.Red, GreenB.Green, YellowC.Red, BrownD.Brown, Yellow
小題2:A color-blind person______.
A.a(chǎn)lways knows how color-blind he is
B.often gives the wrong name of colors
C.see everything as the same color
D.can hardly see something of strong colors
小題3:It’s especially dangerous for a color-blind person to cross a street when_____
A.it is crowded
B.it is a dark night
C.there are no traffic lights at the cross of the streets
D.the traffic light turns red
小題4:A person who is color-blind is believed to have something to do with_____.
A.his old age
B.his poor eyesight
C.his parents or grandparents
D.his living condition
小題5:Up to now, doctors______.
A.have found a way to prevent a person from getting color-blind
B.have found a way to free a person from his color blindness
C.have been able to tell whether a person is color-blind or not
D.have made it quite clear the cause of color blindness

小題1:D
小題2:B
小題3:D
小題4:C
小題5:C

試題分析:文章介紹色盲的一些情況,色盲的人對(duì)什么樣的顏色會(huì)色盲,為什么會(huì)色盲等等。
小題1:細(xì)節(jié)題:從第一段的句子:Most color-blind people can see yellows and blues, but confuse reds with green.可知色盲的人會(huì)把紅色和綠色混淆,所以ABC都不對(duì),選D
小題2:細(xì)節(jié)題:從第二段的句子:they don’t know that the colors they are seeing and naming are not the actual colors that people with normal vision can see.可知色盲的人看見(jiàn)的說(shuō)的顏色和正常人不一樣,就是錯(cuò)的,選 B
小題3:推理題:從第一段的句子:Most color-blind people can see yellows and blues, but confuse reds with green.可知色盲的人會(huì)把紅色和綠色混淆,可推斷出色盲人過(guò)馬路的時(shí)候會(huì)分不清紅綠燈,比較危險(xiǎn),選D
小題4:細(xì)節(jié)題:從第三段的句子:Color blindness is thought to be inherited(遺傳)可知色盲是遺傳的,所以是和父母和祖父母有關(guān),選C
小題5:細(xì)節(jié)題:從第三段的句子:although doctors have tested color blindness, there is no cure to treatment for it.可知醫(yī)生能夠辨別一個(gè)人是否是色盲。選C
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