Body language is a very powerful tool of communication, not only between people but in the animal world as well．
In many instances, we produce idioms(惯用语，习语)which are all understandable by borrowing examples from animal communication．
For example, we know that a frightened cat will arch(拱起)its back high in rigid curve(拱形)．From this starting-point we might hear the expression, “He gets my back up! ” meaning “He makes me angry．”
In the same manner, we know that many animals, if challenged by attackers, will not turn and run away because this will encourage the attacker to attack them more forcefully．Instead, they will move backwards slowly to get out of harm's way, always still facing their attacker．We call this action “backing off” and it can be used just as well with humans as with animals．
In the case of humans, however, the back-off may not be physical but oral, as in using a kinder tone of voice and gentler words instead of fighting against the attackers．
(1)
When a cat arches its back high in a rigid curve, it shows that it is ________．
[ ]
A．
angry
B．
pleased
C．
frightened
D．
defeated
(2)
The underlined expression “backing off “ means ________．
[ ]
A．
escaping from attackers．
B．
getting away slowly．
C．
making the attacker frightened．
D．
avoiding the attackers immediately．
(3)
Which of the following is NOT true according to the text?
[ ]
A．
To learn knowledge, humans must learn from animals．
B．
Both humans and animals have body languages．
C．
Both humans and animals have ways of escaping from danger．
D．
“Backing off “ means keeping away from your enemies．
(4)
What most probably can we get from animals’ body language?
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