Part I Reading Comprehension (共20小题，每小题2分，共40分)
Directions: In this part there are four passages. Each passage is followed by four comprehension questions. Read the passage and answer the questions. Then mark your answer on the Answer Sheet.
Passage 1
Questions 1 to 5 are based on the following passage:
Ask three people to look the same window at a busy street corner and tell you what they see. Chances are you will receive three different answers. Each person sees the same scene, but each perceives something different about it.
Perceiving goes on in our minds. Of the three people who look out the window, one may say that he sees a policeman giving a motorist a ticket. Another may say that he sees a rush-hour traffic jam at the intersection. The third may tell you that he sees a woman trying to cross the street with four children in tow. For perception is the mind’s interpretation of what the senses—in this case our eyes—tell us.
Many psychologists today are working to try to determine just how a person experiences or perceives the world around him. Using a scientific approach, these psychologists set up experiments in which they can control all of the factors. By measuring and charting the results of many experiments, they are trying to find out what makes different people perceive totally different things about the same scene.
1. Seeing and perceiving are .
A. the same action
B. two separate actions
C. two actions carried on entirely by eyes
D. several actions that take place at different times
2. Perceiving is an action that takes place .
A. in our eyes
B. only when we think very hard about something
C. only under the direction of a psychologist
D. in every person’s mind
3. People perceive different things about the same scene because .
A. they see different things B. some have better eyesight
C. they cannot agree about things D. none of these
4. Which of the following is implied but not stated in the passage?
A. Psychologists do not yet know people see.
B. The experiments in which all factors are controlled are better.
C. The study of perception is going on now.
D. Perception does not involve psychological factors.
5. The best title for this selection is .
A. How We See
B. Learning about Our Minds through Science
C. What Psychologists Perceive
D. How to Because an Experimental Psychologist
Passage 2
Questions 6 to 10 are based on the following passage:
The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown tat 40 percent of cancer is related to the diet as well, especially cancer of the colon. Different cultures ate more prone to get certain illnesses because of the food that is characteristic in these cultures. That food is related to illness is not a new discovery. In 1945, government researchers realized that nitrates and nitrites, commonly used to preserve color in meats, and other food additives, caused cancer. Yet these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives that we eat are not all so direct. Farmers often give penicillin to beef and poultry, and because of this, penicillin has been found in the milk of treated cows. Sometimes similar drugs are administered to animals not for medicinal purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.
