Are you a man or a mouse? When people ask this question they want to know __36_  you think you are a  _37_  person or a coward(懦夫). But you will never really know the answer to this question __38__ you are tested in real life. Some people __39__ they are brave but when they come face to face with real __40_ , they act like cowards. Others think of themselves as cowards, but when they meet danger, they act like __41_.
Lenny had always thought of himself as a __42__ person. He got worried before examinations. He worried about his job and his health. All he wanted in life was to be safe and healthy. __43__ , on January 15^th, 2002, a plane crashed into the Potomac River in Washington. Lenny went to the river to see what was happening. He saw a woman in the __44__ water. Lenny did not feel afraid. He kept very __45__ and did a very courageous thing. He jumped into Potomac, __46__ to the woman, and kept her head __47__ the water. Seventy-eight people died that day. Thanks to Lenny, it was not __48__ .
When you are in a very __49__ situation and feel afraid, the body automatically（自动地）produces a chemical in the blood. This chemical is called adrenalin(肾上激素). __50__ adrenalin in the blood system, you actually feel stronger and stronger and are __51__ to fight or run away. However, when you are absolutely terrified, the body can produce too much adrenalin. When this __52__   , the muscles become very hard and you find you __53__ move at all. You are paralyzed(使无能为力) with fear. This is __54__  when we are very frightened, we sometimes say we are ‘petrified’, this word comes from a Greek word ‘petros’, which means ‘stone’. We are __55__ frightened that we become stonelike.

A．how B．neither C．whether D．either

A．brave B．real C．hard D．certain

A．when B．until C．after D．once

A．realize B．find C．think D．agree

A．life B．question C．mouse D．danger

A．soldiers B．mice C．heroes(英雄) D．cowards

A．useful B．brave C．nervous D．terrible

A．So B．Therefore C．Then D．Actually

A．fresh B．poisonous C．warm D．ice-cold

A．nervous B．calm C．frightened D．excited

A．went B．helped C．spoke D．swam

A．in B．under C．above D．from

A．an accident B．a mistake C．seventy-eight D．seventy-nine

A．dangerous B．comfortable C．different D．favorable

A．With B．Without C．For D．Like

A．afraid B．unable C．ready D．anxious

A．gets B．disappears C．happens D．goes

A．needn’t B．can’t C．mustn’t D．shouldn’t

A．where B．how C．because D．why

A．really B．very C．such D．so