完形填空。 I was coaching girls’track in Iowa and there was a young discus (铁饼) thrower on the team with__ 1 __potential (潜力)．Here goes her story. At the end of our training__ 2 __the district track meet，this discus thrower，Lucy， asked me if she__ 3 __come to the school on Sunday for a little__ 4 __training. I agreed.The year before，she had placed second at the district meet and__ 5 __missed going to the state meet.She had won every discus event，__ 6 __that district meet！And， her throws in the competitions had__ 7 __been between 106′1〞and 110′10〞.Something began to__ 8 __me.Why couldn’t Lucy__ 9 __to get the discus to 111 feet？I wondered if it was more a psychological barrier (心理障碍)__1 0 __a physical one.I decided to try something__1 1 __.I made up my mind to__1 2 __to Lucy. On Sunday，after her drills，I said，“Why don’t you throw five or six good ones for me to__1 3 __？”She began to throw again，but__1 4 __were farther than what she had already thrown.But，I didn’t tell Lucy.As I was measuring the__1 5 __one，I pulled out some more tape (卷尺) and yelled out to her，“Come to see this！This one is__1 6 __！” It wasn’t.Lucy，thinking that this was a personal best，jumped wildly into the air in__1 7 __. The next afternoon，at the district meet，Lucy__1 8 __with a personal best throw of 114′10〞！Just 24 hours after I had lied to her.However，this time she had__1 9 __thrown the discus four feet further than she had ever thrown it before. Sometimes we__2 0 __our own barriers in our mind.So learn to take control of your mind. (     )1.A.little (     )2．A.after (     )3．A.could (     )4．A.helpful (     )5.A.luckily (     )6．A.except (     )7．A.sometimes (     )8．A.frighten (     )9．A.seem (     )10．A.apart from (     )11．A.impossible (     )12．A.lie (     )13．A.look (     )14．A.many (     )15．A.worst (     )16．A.higher (     )17．A.excitement (     )18．A.disappeared (     )19．A.actually (     )20．A.break B．large B．during B．must B．extra B．completely B．including B．always B．please B．pretend B．rather than B．familiar B．turn B．measure B．all B．closest B．farther B．anxiety B．lost B．hardly B．remove C．no C．since C．should C．real C．narrowly C．despite C．never C．shock C．need C．because of C．new C．reply C．match C．some C．first C．bigger C．puzzlement C．won C．nearly C．take D．limited D．before D．would D．regular D．probably D．with D．seldom D．bother D．ask D．according to D．easy D．call D．take D．none D．final D．longer D．anger D．arrived D．only D．set