填空题 Directions: This section is to test your ability to comprehend short passages. You will hear a recorded passage.After that you will hear five questions. Both the passage and the questions will be read two times.When you hear a question, you should complete the answer to it with a word or a short phrase(in not more than 3 words). The questions and incomplete answers are printed in your test paper.You should write your answers on the Answer Sheet correspondingly. Now the passage will begin.

填空题 What kind of person is a color-blind person? He can't______all kinds of colors.

填空题 What kinds of colors can most color-blind people see? Yellow and______.

填空题 For those who are almost blind to all colors, what kinds of colors can they only see? They can only see______.

填空题 How many people are almost blind to all colors? There are______people who are blind to all colors.

填空题 Why is it dangerous for a color-blind person to pass the traffic lights? Because they don't know they can not______the real Colors.