阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
It was in my high school science class. I was doing a task in front of the classroom with my favorite shirt on.
A  36  came,“Nice shirt,”I smiled from ear to ear. Then another voice said,“That shirt belonged to my dad. Greg’s mother works for my family. We were going to  37   that shirt away, but gave it to her  38  .”I was speechless. I wanted to hide.
I  39   the shirt in the back of the closet and told my mum what had happened. She then dialed her    40   , “I will no longer work for your family,”she told him. That night, Mom told my dad that she couldn’t clean anymore; she knew her life’s   41  was something greater.
The next morning she   42   with the personnel manager at the Board of Eeucation. He told her that without a proper education she could not teach. So mom decided to   43  a university.
After the first year in college, she went back to the personnel manager. He said, “You are   44  , aren’t you? I think I have a   45   for you as a teacher’s assistant. This opportunity deals with children who are mentally challenged with little or no chance of   46  .” Mom accepted the opportunity very   47  .
For almost five years, as a teacher’s assistant, she saw teacher after teacher give up on the children and quit, feeling   48  . then one day, the personnel manager and the principal   49   in her classroom. The principal said, “We have watched how you   50   the children and how they communicate with you and admire your hard – working   51   over the last five years. We are all in agreement that you   52   be the teacher of this class.”
My mom spent more than 20 years there.   53  her career, she was voted Teacher of the Year. All of this came about because of the   54   comment made in the classroom that day. Mom showed me how to handle   55   situations and never give up.
36．A．noise B．voice C．sound       D．tune
37．A．get    B．take   C．carry D．throw
38．A．otherwise  B．anyhow    C．instead      D．actually
39．A．settled      B．pushed      C．stored      D．stuck
40．A．teacher     B．employer  C．director    D．adviser
41．A．purpose    B．encouragement C．achievement     D．victory
42．A．went B．met   C．worked     D．stayed
43．A．visit  B．continue   C．attend       D．prepare
44．A．serious     B．fortunate   C．careful      D．responsible
45．A．career       B．duty  C．position    D．part
46．A．learning    B．judging     C．obeying    D．imagining
47．A．patiently   B．eagerly     C．successfully      D．skillfully
48．A．upset B．frightened C．guilty       D．ashamed
49．A．looked up B．went up    C．took up     D．showed up
50．A．believe     B．protect      C．treat  D．receive
51．A．spirit B．intention   C．action       D．attempt
52．A．must B．would       C．might       D．should
53．A．At     B．During     C．On    D．With
54．A．worthless  B．thoughtless       C．hopeless    D．helpless
55．A．challenging      B．different   C．dangerous D．strange