练习:
1. Which of the following is the most appropriate definition of Flight Distance?
A. Distance between animals of the same species before fleeing.
B. Distance between large and small animals before fleeing.
C. Distance between an animal and its enemy before fleeing.
D. Distance between certain animal species before fleeing.
2. If an animal’s critical distance is penetrated, it will
A. begin to attack.
B. try to hide.
C. begin to jump.
D. run away.
3. According to the passage, social distance refers to
A. physical distance.
B. psychological distance.
C. physiological distance.
D. philosophical distance.
4. Which of the following could best replace the word “band ” in “We can think of it as a hidden band that contains the group”(in Paragraph 3)?
A. strip of land.
B. distance.
C. society.
D. community.
5. The example of the children holding hands when crossing the street in the last paragraph shows that
A. social distance is not always needed.
B. there is no social distance among small children.
C. humans are different from animals in social distance.
D. social distance is sometimes determined by outside factors.
标准答案: C,A,B,A,D