全新版大学英语4第二版听说教程unit3答案.ppt

全新版大学英语第二版听说教程4 unit 3 Part A on P22 7. What do long-term memory and short-term memory mean? In terms of duration, memory can be classified into long-term memory and short-term memory. By long-term memory, we mean memory that lasts as short as a few days and as long as decades. By short-term memory, we refer to memory that stores items for only around 18 seconds or just less than one hour. A typical example of the former type is peoples remembrance of their names and birthdays, for no one will forget them in their life time. A typical example of the latter type is a beautiful girl or handsome boy you meet on the street, even though you are impressed by him/her at the first glance, it is very likely for you to forget him/her soon afterwards. 8. How can we improve our memory? As a matter of fact, we are not born with good memory. However, there are several ways for us to improve our memory. For instance, reciting well-written passages, either English or Chinese, in the morning is an efficient method. Besides, doing some training following the guidance in the books which aim to enhance peoples memory is a good choice. In addition, using imagination to arouse association is another good choice when we are trying to memorize something. For example, if we are asked to memorize a corresponding table as below, how can we memorize it correctly in a short time? 3 5 9 14 20 tables gloves cats rings cigarettes By the way, we should notice that all the nouns are in their plural forms. What we need to do in the following is to arouse association between the numbers and nouns. My association is like these: 3+table = a table with three legs; 5+glove = a glove has five fingers; 9+cat = it is believed that a cat can live nine times; 14+ring = the Valentines Day; 20+cigarettes = generally there are 20 cigarettes in a pack. See how it goes? Have a try and you can make it, too. Part B How Our Memory Works ex.1 on P2