If you do not use your arms or your legs for some time, they become weak. When you 1usin

　　If you do not use your arms or your legs for some time, they become weak. When you 1using them again, they 2become strong again. Everybody knows this and nobody would think of 3 this fact. 4 there are many people who do not 5 to know that memory works in the 6 way.
　 7someone says that he has a good memory; he8 means that he 9 his memory by practising exercising it. When someone 10 says that his memory is poor, he actually means that he 11 give it enough chances to become 12 .Have you ever 13 that people who cannot read or write usually have 14 memories than those who can? This is 15 those who 16 read or write 17 remember things. They have to remember dates, places, names, songs and stories. So their memory is the whole time 18 .So 19 you want to have a good memory, you should learn from those people, 20 by remembering what you see, hear, feel and write. If so, you must have a good memory.
　　1. A. begin B. go on C. stop D. continue
　　2. A. quickly B. slowly C. soon D. at once
　　3. A. doing B. agreeing C. questioning D. answering
　　4. A. Yet B. Still C. So D. Certainly
　　5. A. want B. seem C. get D. hope
　　6. A. other B. usual C. same D. opposite
　　7. A. As B. What C. While D. When
　　8. A. real B. actually C. true D. then
　　9. A. wants B. builds up C. makes D. keeps
　　10.A.again B. else C. more D. once
　　11.A.do not B. is not C. never D. does not
　　12.A.poor B. weak C. strong D. healthy
　　13.A.seen B. heard of C. noticed D. thought of
　　14.A.worse B. better C. more D. less
　　15.A.why B. how C. because D. the reason
　　16.A.used to B. cannot C. try to D. have to
　　17.A.will not B. have to C. refuse D. cannot
　　18.A.ready B. being used C. busy D. training
　　19.A.if B. that C. though D. thus
20.A.please B. try C. train D. enjoy1---20 ABCAB CDBDB DCCBC BBBAC

(答案→)1---20 ABCAB CDBDB DCCBC BBBAC 解析：1.A.根据句中有副词again进行推断,此处应该用begin(doing)表示重新开始做某事. 2.B.身体、健康、记忆由弱到强的变化过程比较缓慢. 3.C.此处question是一个动词,表示对某事物提出疑问/质疑. 4.A.表示转折语义. 5.B.seem to do/be似乎,好像是. 6.C.in the same way以同样的方式,说明人的记忆力与身体变化一样,都是由弱到强这样一个缓慢变化过程. 7.D.When引导时间状语从句. 8.B.actually=really实际上,事实上. 9.D. 10.B.else常与不定代词someone, somebody, something; anyone, anybody, anything; everyone, everybody, everything; no one, nobody, nothing以及疑问词what, who, whose, whom, which, where, when, how等连用. 11.D. 12.C.poor与strong构成对比. 13.C.表示注意到,留意到. 14.B.句中better memories=stronger memories. 15.C.构成句式This is because+从句,用来交代前面情况的原因. 16.B.根据上句中有people who cannot read or write usually have better momories than...可以推知. 17.B. 18.B.为现在进行时的被动语态形式. 19.A.引导条件状语从句. 20.C.说明好的记忆力需要经过训练.

谢谢解答