阅读下面短文，掌握其大意，然后从36—55各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
I was coaching girls’ track in Iowa and there was a young discus（铁饼）thrower on the team with 36 potential（潜力）. Here goes her story.
At the end of our training 37 the district track meet, this discus thrower, Lucy, asked me if she 38 e to the school on Sunday for a little 39 training. I agreed. The year before, she had placed second at the district meet and 40 missed going to the state meet. She had won every discus event, 41 that district meet! And, her throws in the petitions had 42 been between 106’1” and 110’10”.
Something began to 43 me. Why couldn't Lucy 44 to get the discus to 111 feet? I wondered if it was more a psychological barrier（心理的障碍） 45 a physical one. I decided to try something 46 . I made up my mind to 47 to Lucy.
On Sunday, after her drills, I said, “Why don’t you throw five or six good ones for me to 48 ?” She began to throw again, but 49 were farther than what she had already thrown. But, I didn’t tell Lucy. As I was measuring the 50 one, I pulled out some more tape (量尺) and yelled out to her, “ Come to see this! This one is 51 ! ” It wasn’t. Lucy, thinking that this was a personal best, jumped wildly into the air in 52 .
The next afternoon, at the district meet, Lucy 53 with a personal best throw of 114’10”! Just 24 hours after I had lied to her. However, this time she had 54 thrown the discus four feet further than she had ever thrown it before.
Sometimes we 55 our own barriers in our mind. So learn to take control of your mind.
21．A. little B. great C. no D. limited
22．A. after B. during C. since D. before
23．A. could B. must C. should D. would
24．A. helpful B. extra C. real D. regular
25．A. luckily B. pletely C. narrowly D. probably
26．A. except B. including C. despite D. with
27．A sometimes B. always C. never D. seldom
28．A. frighten B. please C. shock D. bother
29．A. seem B. pretend C. need D. ask
30．A. apart from B. rather than C. because of D. according to
31．A. impossible B. familiar C. new D. easy
32．A. lie B. turn C. reply D. call
33．A. look B. measure C. match D. take
34．A. many B. all C. some D. none
35．A. worst B. closest C. first D. final
36．A. higher B. farther C. bigger D. longer
37．A. excitement B. anxiety C. puzzlement D. anger
38．A. disappeared B. lost C. won D. arrived
39．A. actually B. hardly C. nearly D. only
40．A. break B. remove C. take D. set36—40 BDABC 41—45 ABDAB 46—50 CABDD 51—55 BACAD
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(答案→)36—40 BDABC 41—45 ABDAB 46—50 CABDD 51—55 BACAD
解析：
36．考查形容词用法，根据语篇的理解可知，这里是说一个年轻的铁饼投手，很有潜力。
37．考查表示时间的介词用法，根据下一句说到她想进我们学校训练，可知这是地区田径运动会前。
38．考查情态动词用法，这里用could表示（询问是否可做某事）能，可以。
39．考查形容词用法，根据对下文的理解，可知她成绩越来越好，所以这里意思是：她想加大训练量。
40．考查副词用法，narrowly (ad.)勉強地，本句意是：她在地区田径运动会取得第二名，所以勉強地地错过全国的运动会。
41．考查介词用法，根据前文理解可知，她在地区田径运动会只得第二名，可知答案。
42．考查副词用法，这里意思是：她的成绩总是在06’1” 和 110’10”之间。
43．考查动词用法，从下文的I wondered if可知，作者对这感到不解，所以用bother，意为：操心。
44．考查动词用法，根据语篇理解，这里用seem表示：似乎；看来，其它选项不适合。
45．考查介词短语。这里用rather than（而不是）要表示转折关系。
46．考查形容词用法。根据上下文理解，这里作者运用全新的方法（来训练她）。
47．考查动词用法，根据下文的farther than what she had already thrown. But, I didn’t tell Lucy.可知答案。
48．考查动词用法。根据这问话：“Why don’t you throw five or six good ones”及下文：I was measuring可知答案。
49．考查代词用法。下文是说到：I pulled out some more tape，所以这里说明她没有一次投得更好。
50．考查形容词用法。根据文章内容可知，作者是量度她最后一投。
51．考查形容词比较级。因为这里是说投铁饼，所以用距离来衡量。
52．考查名词用法。前文说到a personal best（个人最好的），所以兴奋地跳起来。
53．考查动词用法。下面说到她是个人最好的114’10”，所以她获胜了。
54．考查副词用法。根据前文的理解，这里是说她居然/竟然（actually）比她以前投得远多four feet。
55．考查动词用法。通读全文可知，前面通过这个事例说明，有时是我们自己在心里设置障碍。