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 may not be able to 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 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 and 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 being 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 colors around us.
小題1:According to the passage, with the help of the "cones", we can        
A.tell different coloursB.see in a weak light
C.tell different shapesD.tell orange from yellow
小題2: Why do some people say it is safer to be driven by women?
A.Women are more careful.
B.There are fewer color-blind women.
C.Women are fonder of driving than men.
D.Women are weaker but quicker in thinking.
小題3:Which of the statements about the color-blind is true?
A.Not all of them have the same problem in recognizing colors.
B.None of them can see deep red.
C.None of them can tell the difference between blue and green.
D.All of them see everything in shades of green.
小題4:We can attract and kill mosquitoes by using a        
A.red lightB.yellow light
C.blue lightD.green light

小題1:A
小題2:B
小題3:A
小題4:B

試題分析:文中采用了舉例分別介紹了色盲的各種情況。目前人類色盲現(xiàn)象相當(dāng)奇怪,難以解釋清楚。
小題1:這是細節(jié)理解題。根據(jù)These help us to see in a bright and tell difference between colors. 故選A。
小題2:這是細節(jié)理解題。根據(jù)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.
故選B。
小題3:這是細節(jié)理解題。根據(jù)There are different forms of color blindness.故選A。
小題4:這是細節(jié)理解題。根據(jù)Mosquitoes(蚊子) like blue but do not like yellow. 故選B。
點評:本文都是細節(jié)理解題,做起來比較容易。做細節(jié)理解題應(yīng)注意認真核查題干和原文的異同,進而做出正確的判斷。
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D.trying things out one by one
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B.I’d better stay out of trouble.
C.Ok! Now I can learn something.
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A.They can get bored easily about everything.
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小題3:Why should parents limit the activities our children attend?
A.Because children have no time.
B.Because children cannot learn many things.
C.Because children do not have enough sleep.
D.Because children cannot focus on too many activities.
小題4:What is the main idea of this passage?
A.Don’t be children’s drivers after school.
B.Choose activities for your children wisely.
C.Make your children learn as much as possible.
D.Let children learn something from various subjects.

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