Sometimes people call each other “scared-cat”. But have you ever thought about this expression? When a cat is frightened(害怕), its heart starts beating faster, its muscles get tense(紧张的) and there are changes in the chemicals(化学) in its bloodstream. Although the cat doesn’t realize(意识到) this, its body is getting ready for action. If the danger continues, the animal will do one of two things. It will protect(保护) itself, or it will run away as fast as it can.
Something like this also happens to people. When we are excited, angry or scared by other feelings, our bodies go through many physical changes. Our hearts beat faster, and our muscles get tense. All of these changes make us more alert(警醒) and ready to react(反应). We, too, get ready to defend（防御；保护） ourselves or run.
Human beings, however, have a problem that animals never face. If we give way to our feelings and let them take over, we can get into trouble. Have you ever said something in anger or hit somebody and regretted(后悔) it later? Have you ever shouted at a teacher, told somebody you were lonely, or said you were in love, and then wished later you had kept your mouth shut? It isn’t always clever to express your feelings freely.
Does this mean that it’s smarter always to hide(藏) our feelings? No! If you keep feelings of anger, sadness hidden away or bottled up inside, your body stays tense. Physical illness can develop. It can actually be bad for your health.( It isn’t good to keep pleasant feelings inside either; all feeling need to be expressed (表达) .)
Feeling that you keep all bottled up inside don’t just go away. It’s as if you bought some bananas and put them in a cupboard. You might not be able to see them, but before long you’d smell them. And if you opened the cupboard, chances are you’d see little fruit flies flying all over them. They are bad.
You can try to treat feelings as if they were bananas in the cupboard. You can hide them and you can pretend(假装) they don’t exist（存在）, but they’ll still be around. And at last you’ll have to deal with them, just like those bananas.
The best title for this article is_______.

A．Feelings Affect (影响)Our Bodies

B．What Happens to a Frightened Cat

C．What Happens to an Excited Person

D．Feelings that People Have

What does the underlined word” muscle” mean in the first sentence?.

A．皮肤

B．心情

C．肌肉

D．身体

According to the passage, we may conclude(总结) that we human beings________

A．have fewer problems than animals

B．have the same problems as animals

C．have more problems than animals

D．have cleverer problems than animals

If you hide your feeling,__________.
A. they’ll disappear (消失)             B. they won’t exist any more
C they will fly all over                 D. your body stays tense
The author wrote this article in order to___________.

A．tell us that it isn’t good to keep feelings inside

B．give us some advice on how to express our feelings

C．make us face the problem that we have to deal with feelings

D．make us know that it isn’t always wise to express our feelings freely