About ten men in every hundred suffer from color blindness in some way. Women are luckier, only about one in two hundred is affected in this matter. Perhaps, after all, it is safer to be driven by a woman!
There are different forms of color blindness. In some cases a man can not see deep red. He may think that red, orange and yellow are all shades of green. Sometimes a person cannot tell the difference between blue and green. In rare cases an unlucky man may see everything in shades of green - a strange world indeed.
Color blindness in human beings is a strange thing to explain. In a single eye there are millions of very small things called “cones”. These help us to see in a bright light and to tell difference between colors. There are also millions of “rods” but these are used for seeing when it is nearly dark. They show us shape but no color.
Some insects have favorite colors. Mosquitoes (蚊子) like blue but do not like yellow. A red light will not attract insects, but a blue lamp will. In a similar way human beings also have favorite colors. Yet we are lucky. With the aid of the cones in our eyes we can see many beautiful colors by day, and with the aid of the rods we can see shapes at night. One day we may even learn more about the invisible (看不见的) colors around.
【小题1】Why do some people say it is safer to be driven by women?A．Women are more careful.B．There are few color-blind women.C．Women are fonder of driving than men.D．Women are weaker but quicker in thinking【小题2】This passage is mainly about .A．color and its surprising effectsB．women being luckier than menC．danger caused by color blindnessD．color blindness【小题3】According to the passage, with the help of the “cones”， we can .A．tell orange from yellow B．see in weak lightC．kill mosquitoesD．tell different shapes【小题4】We can attract and kill mosquitoes by using a .A．red lightB．yellow lightC．blue lightD．green lightB
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(答案→)B
解析：本文主要讲述的是色盲的话题，在文章中介绍了色盲形成的原因，并说明了昆虫对颜色的偏好。
【小题1】细节题。根据文章第一段About ten men in every hundred suffer from color blindness in some way. Women are luckier; only about one in two hundred is affected in this matter. Perhaps, after all, it is safer to be driven by a woman!说明女性色盲的比男性少，故B正确。
【小题2】主旨大意题。根据文章第二段第一行There are different forms of color blindness.本文主要讲述的就是色盲的话题，故D正确。
【小题3】细节题。根据第三段的句子：. In a single eye there are millions of very small things called “cones”. These help us to see in a bright light and to tell difference between colors..可知cones帮助我们辨别颜色，说明A 项正确。
【小题4】推理题。根据文章倒数第五行Mosquitoes prefer blue to yellow.说明蚊子喜欢蓝色的光线，故我们可以利用蓝色的光线来吸引蚊子进行捕杀。故C正确。