About ten men in every hundred have the trouble of color blindness in some way. Women are luckier, only about one in two hundred is affected（感染）in this matter. Perhaps, after all ,it is safer to be driven by a woman.
There are different kinds of color blindness. For example, a man cannot see deep red. He may think that red, orange and yellow are all shades (影子) of  green. Sometimes a person can’t tell the difference between blue and green. Only a few unlucky men may see everything in shades of green— a strange world indeed.
Color blindness in human beings is a different thing to explain. In only one eye there are millions of very small things called “cones（锥状细胞）” . These help us to see in the bright light and to tell differences between colors. These are also millions of “rods“（杆状细胞），but these are used for seeing when it is nearly dark. They show us shapes but not colors.
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 light will. Human beings also have favorite colors. Yet we are lucky. With the help of the cones in our eyes, we can see many beautiful colors by day, and with the help of the rods we can see shapes at night.
【小题1】“Color blindness” means           in Chinese.
A. 盲目        B. 无色      C 色盲    D 讨厌颜色
【小题2】 Some people say it’s safer to be driven by women because         .

1 

About ten men in every hundred have the trouble of color blindness in some way. Women are luckier, only about one in two hundred is affected（感染）in this matter. Perhaps, after all ,it is safer to be driven by a woman.

There are different kinds of color blindness. For example, a man cannot see deep red. He may think that red, orange and yellow are all shades (影子) of  green. Sometimes a person can’t tell the difference between blue and green. Only a few unlucky men may see everything in shades of green— a strange world indeed.

Color blindness in human beings is a different thing to explain. In only one eye there are millions of very small things called “cones（锥状细胞）” . These help us to see in the bright light and to tell differences between colors. These are also millions of “rods“（杆状细胞），but these are used for seeing when it is nearly dark. They show us shapes but not colors.

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 light will. Human beings also have favorite colors. Yet we are lucky. With the help of the cones in our eyes, we can see many beautiful colors by day, and with the help of the rods we can see shapes at night.

1.“Color blindness” means           in Chinese.

A. 盲目        B. 无色      C 色盲    D 讨厌颜色

2. Some people say it’s safer to be driven by women because         .

A. women drive more carefully

B. women are better at driving than men

C. women can see things more clearly

D. there are fewer color — blind women

3.With the help of the “cones”, we can          .

A. tell different shapes        B. kill insets

C. see in the dark            D. tell orange from yellow

4. We can attract and kill mosquitoes by using a           light.

A. red       B. yellow     C. blue     D. green

5. Which of the following sentences about color blindness is TRUE?

A. None of men can see deep red.

B. Not all of men have the same problem in recognizing colors.

C. None of men can tell the difference between blue and green.

D. All of men see everything in shades of green.

About ten men in every hundred have the trouble of colorblindness in some way. Women are luckier, only about five in every hundred are affected in this matter. Perhaps, after all, it is safer to be driven by a woman.

There are different shapes of color blindness. For example, a man may be able to see deep red. He may think that red, orange and yellow are all shades of green. Sometimes a person can not tell the difference between blue and green. Only a few unlucky men may see everything in shades of green-a strange world indeed.

Colour blindness in human beings is a strange thing to say clearly. In only one eye there are millions of very small things called “cones^①”. These help us to see in a bright light and to tell difference between colours. There are also millions of “rods^②”，but these are used for seeing when it is nearly dark. They show us shapes but no colours. Some insects have favourite colours. Mosquitoes^③ like blue but do not like yellow. A red light will not attract insects, but a blue light will. Human beings also have favourite colours. Yet we are lucky. With the help of the cones in our eyes we can see many beautiful colours by day, and with the help of the rods we can see shapes at night. One day we may even learn more about the invisible^④ colours around us.

生词注释：①cone n.锥形物　②rods n.棒　③mosquitoe n.蚊子　

　　　　　④invisible adj.看不见的

1.“colour blindness”means       in Chinese.

       A.色盲                        B.颜料                    C.盲目                   D.瞎

2.Why do some people say it is safer to be driven by women?

       A.Women are better at driving than men.

       B.Women are more careful.

       C.There are fewer colour blind women.

       D.Women are friendly to people.

3.With the help of the “cones”, we can      .

       A.tell different shapes   B.kill insects

       C.see in a weak light     D.tell orange from yellow

4.We can attract and kill mosquitoes by using a       light.

       A.red                          B.yellow                 C.blue                    D.green

5.Which of the following sentences about the colour blindness is TRUE?

       A.None of them can see deep red.

       B.Not all of them have the same problem in recognizing(识别)colour.

       C.None of them can tell the difference between blue and green.

       D.All of them see everything in shades of green.

About ten men in every hundred have the trouble of color blindness in some way. Women are luckier, only about one in two hundred is affected（感染）in this matter. Perhaps, after all ,it is safer to be driven by a woman.
There are different kinds of color blindness. For example, a man cannot see deep red. He may think that red, orange and yellow are all shades (影子) of  green. Sometimes a person can’t tell the difference between blue and green. Only a few unlucky men may see everything in shades of green— a strange world indeed.
Color blindness in human beings is a different thing to explain. In only one eye there are millions of very small things called “cones（锥状细胞）” . These help us to see in the bright light and to tell differences between colors. These are also millions of “rods“（杆状细胞），but these are used for seeing when it is nearly dark. They show us shapes but not colors.
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 light will. Human beings also have favorite colors. Yet we are lucky. With the help of the cones in our eyes, we can see many beautiful colors by day, and with the help of the rods we can see shapes at night

1. 1.

   “Color blindness” means           in Chinese

   1. A.
      盲目
   2. B.
      无色
   3. C.
      色盲
   4. D.
      讨厌颜色
2. 2.

   Some people say it’s safer to be driven by women because         

   1. A.
      women drive more carefully
   2. B.
      women are better at driving than men
   3. C.
      women can see things more clearly
   4. D.
      there are fewer color — blind women
3. 3.

   With the help of the “cones”, we can          

   1. A.
      tell different shapes
   2. B.
      kill insets
   3. C.
      see in the dark
   4. D.
      tell orange from yellow
4. 4.

   We can attract and kill mosquitoes by using a           light

   1. A.
      red
   2. B.
      yellow
   3. C.
      blue
   4. D.
      green
5. 5.

   Which of the following sentences about color blindness is TRUE?

   1. A.
      None of men can see deep red
   2. B.
      Not all of men have the same problem in recognizing colors
   3. C.
      None of men can tell the difference between blue and green
   4. D.
      All of men see everything in shades of green