完形填空（共20小题；每小题1.5分，满分30分）
阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
When I met Mr Jim Lemon I was a seventeen-year-old freshman at Houston's Jackson Junior High.The chances of my finishing high school were  36  . I was a troubled teenage.
Mr Lemon taught American history and was quite  37  from the other teachers I had known. Not only was he  38  , but also he was a great teacher. He pushed and never tolerated the mediocrity(平庸) that had become my standard.
On the occasion of our first semester report cards, Mr Lemon  39  me aside and asked how it was possible that I was a B student in his class and a C student in the  40  of my classes. I passionately told him about my  41  parents, the local gangs, the drugs, the fights, the police---all of the evils I had been  42  to. It was then that Mr Lemon  43  explained that the only person  44  for my situation was me. And the only person with the  45  to change my situation was me. He  46  me that I was failing not because I was a failure. He inspired me to become a better student and he  47  my life.
Ten years later I was preparing to graduate from a university when I spoke to him again . 48  I did get him on the phone, I told him that I had been saving money so that I could invite him to come to Hawaii at my  49  to be a part of my graduation.
I'll never forget his  50  . He said,"Who is this again?" I was just one of hundreds of the students whose life he changed  51  he had no idea of his influence.
Mr Lemon never came to my graduation, but his  52  taught me another valuable lesson. His final lesson for me was that we will never know or understand the  53  we have on other people's lives. He taught me that we all have the  54  to effect people's lives for the  55  ... Or for the worse.      

A．near B．ready C．great D．slim

A．kind B．excellent C．different D．same

A．strict B．tough C．sympathetic D．warm-hearted

A．scolded B．called C．pushed D．dragged

A．rest B．most C．others D．all

A．qualified B．learned C．well-educated D．divorced

A．subjected B．addicted C．referred D．forced

A．nervously B．patiently C．strictly D．confidently

A．blamed B．capable C．struggling D．responsible

A．sense B．potential C．direction D．mood

A．persuaded B．pointed C．convinced D．confirmed

A．changed B．turned C．supported D．arranged

A．While B．Before C．When D．After

A．cost B．expense C．treat D．invitation

A．attitude B．unwillingness C．teaching D．response

A．and B．however C．or D．so

A．absence B．refusal C．confusion D．decision

A．importance B．ability C．impression D．influence

A．duty B．opportunity C．responsibility D．courage

A．easier B．better C．happier D．simpler