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，色盲的人對什么樣的顏色會色盲，為什么會色盲等等。
小題1:細節(jié)題：從第一段的句子：Most color-blind people can see yellows and blues, but confuse reds with green.可知色盲的人會把紅色和綠色混淆，所以ABC都不對，選D
小題2:細節(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.可知色盲的人看見的說的顏色和正常人不一樣，就是錯的，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.可知色盲的人會把紅色和綠色混淆，可推斷出色盲人過馬路的時候會分不清紅綠燈，比較危險，選D
小題4:細節(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，選C
小題5:細節(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)生能夠辨別一個人是否是色盲。選C
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B．It works as an effective medicine.
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B．The Exotic Series.
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C．Laughter helps to reduce pain.
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A．Because they want to earn more money.
B．Because they think they will help the patients recover from illnesses.
C．Because they want to improve their patients’ health.
D．Because they want their patients to laugh more.
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A．laugh as much as possibleB．watch more funny films
C．smile all the timeD．spend time in the laughter clinics
小題5:What would be the best title for this passage?  
A．Both laughter and physical exercise are good for health.
B．Laughter clinics can help patients improve their condition.
C．Laughter can reduce the effect of pain.
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