三、完形填空

If you do not use your arms or your legs for some time, they become weak. When you  21__A__  using them again, they 22___C__  become strong again. Everybody knows this and nobody would think of  23___C__  this fact. 24___B__ here are many people who do not  25___C___ to know that memory works in the  26__C___ way.

27___D___  someone says that he has a good memory, he actually means that he 28____D___  his memory by practising exercising it. 

When someone  29___B___ says that his memory is poor, he actually means that he  30____D___ give it enough chances to become  31__C___  .Have you ever noticed that people who cannot read or write usually have  32__A___  memories than those who can? 

This is because those who  33___C__ read or write have to remember things. They have to remember dates, places, names, songs and stories.

So their memory is the whole time being used .So 34___A___ you want to have a good memory, you should learn from those people,  35___C__  by remembering what you see, hear, feel and write. If so, you must have a good memory. 

21. A. start B. go on C. stop D. continue

22. A. quickly B. slowly C. soon D. at once

23. A. doing B. agreeing C. questioning D. answering

24. A. Yet B. Still C. So D. Certainly

25. A. want B. seem C. get D. hope

26. A. other B. usual C. same D. opposite

27. A. As B. What C. While D. When

28. A. wants B. builds up C. makes D. keeps 

29. A. again B. else C. more D. once 

30. A. do not B. is not C. never D. does not

31. A. poor B. weak C. strong D. healthy 

32. A. worse B. better C. more D. less

33. A. used to B. cannot C. try to D. have to

34. A. if B. that C. though D. thus 

35. A. please  B. try  C. train  D. enjoy