When you say that someone has a good memory, what exactly do you mean? Are you saying that the person has fast recall or that he or she __51__ information quickly? Or maybe you just mean that the person remembers a lot about her or his childhood. The truth is that it is __52__ to say exactly what memory is. Even scientists who have been studying memory for decades say they are still trying to __53__ exactly what it is. We do know that a particular memory is not just one thing stored somewhere in the brain. __54__, a memory is made up of bits and pieces of information stored all over the brain. Perhaps the best way to __55__ memory is to say that it is a process — a process of recording, storing, and getting back information. Practice and repetition can help to __56__ the pieces that make up our memory of that information.
Memory can be __57__ affected by a number of things. __58__ nutrition can affect a person’s capability of storing information. Excessive alcohol use can also weaken memory and cause permanent __59__ to the brain over the long term. A vision or hearing problem may affect a person’s power to notice certain things, thus making it __60__ to register information in the brain.
When people talk about memory, they often __61__ short-term memory and long-term memory. If you want to call a store or an office that you don’t call often, you look in the telephone book for the number. You dial the number, and then you forget it! You use your short-term memory to remember the number. Your short-term memory lasts about 30 seconds, or half a minute. __62__, you don’t need to look in the telephone book for your best friend’s number, because you already know it. This number is in your long-term memory, which __63__ information about things you have learned and experienced through the years.
Why do you forget things sometimes? The major reason for forgetting something is that you did not learn it well enough __64__. For example, if you meet some new people and right away forget their names, it is because you did not __65__ the names at the first few seconds when you heard them.
51. A. collects B. processes C. publishes D. absorbs
52. A. necessary B. important C. difficult D. convenient
53. A. figure out B. take out C. put out D. give out
54. A. After all B. Instead C. By contrast D. Besides
55. A. recall B. refresh C. describe D. decrease
56. A. lose B. organize C. identify D. strengthen
57. A. positively B. negatively C. actively D. directly
58. A. Poor B. Adequate C. Special D. Various
59. A. benefit B. offence C. effect D. damage
60. A. easier B. more impressive C. harder D. more convenient
61. A. refer to B. apply for C. come across D. break down
62. A. Furthermore B. However C. Consequently D. Otherwise
63. A. leaks B. transmits C. checks D. stores
64. A. in the middle B. at the end C. in the beginning D. ahead of time
65. A. restore B. record C. replace D. respond
DCABC DBADC ABDCB
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