Body language is a very powerful tool of a communication, not only between people but in t

Body language is a very powerful tool of a communication, not only between people but in the animal world as well.
In many instances, we produce idioms which are all understandable by borrowing examples from animal communication.
For example, we know that a frightened cat will arch（拱型）. 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（挑战）by attackers, will not turn and run away because this will encourage the attackers to attack them more forcefully. Instead, they will move backwards slowly to get out of harm’s way, always facing their attacker. We call this action “backing off” and it can be used 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 gentle words instead of fighting against the attackers.
8. 【小题1】When a cat arches its back high in a rigid curve, it shows that it is .A．angryB．pleasedC．frightenedD．defeated9. 【小题2】In the article “back off” means .A．to escape from the attackersB．to get away quicklyC．to keep out the attackersD．to avoid the attackers in words10. 【小题3】Which of the following is wrong according to the article?A．To learn knowledge, humans must learn from animals.B．Both humans and animals have the body language.C．Both humans and animals have ways of getting out of harm.D．“Face your attackers” means to encourage yourself.11. 【小题4】What is mentioned（提到）in this article belongs to study of English .A．grammarB．idiomsC．expressionD．communicationA

(答案→)A 解析：8. 【小题1】细节理解题。根据第三段说，猫愤怒后会做出这个动作，由此人们说“He gets my back up!”。故选A。9. 【小题2】依据上下文判断，“back off”意为“退却”。10.【小题3】人类不是“必须”向动物学习，才能学到知识。11.【小题4】 由文章第三段和倒数第二段。

我明天再问问老师，叫他解释下这个问题