听力部分在四级考试中占着35%的比例，让很多考生为之担惊受怕，因此很多考生在听力时间内也是有点手忙脚乱。其实，稳定好心态，一步一步来，四级听力还是很简单的,下面环球博海小编为同学们搜集了2013年英语四级听力题型解析-等值转换(4)，助同学们学习一臂之力!

　　等值转换题相对来说比较令考生头疼，特点是因为它的答案无法在原文中直接找到，必须通过换算的方式计算出结果，而并非运用原文中的线索直接加减乘除，所以你一定要对英语中的代用词相当的敏感，以下为英语中常用到的代用词，务必倒背如流。

　　① 时间的代用词

　　quarter 一刻钟、四分之一、季度 a dozen 一打、十二个

　　score 二十 monthly 一月一次

　　daily 一日一次 weekly 每周一次

　　fortnight 两星期 decade 十年

　　century 世纪、百年 millennium 千年

　　② 倍数、货币的代用词

　　double、twice 两倍 fivefold 五倍

　　half 一半 a quarter 25美分

　　a dime 10美分 a nickel 5美分

　　【例1】

　　W: We have worked for a fortnight. And really need a break.

　　M: How about seeing a play? I hear “Spiderman” is on at the National Theatre.

　　Q: How long have they been working?

　　A) Four nights B) Forty nights

　　C) Fourteen days D) Four days

　　【解析】 这题当中应区分fortnight和four nights之间的发音。fortnight代表两个星期，也就是十四天，所以C为正确答案。

　　【例2】

　　M: Lisa, you know that Tom was late twice this week.

　　W: It’s ok, the class is so boring, I was late three times that often and Mark was late six times.

　　Q: How many times was Tom late?

　　A) 1 B) 2 C) 3 D) 6

　　【解析】 Twice 是英语数字2的代用词，分清问的是Tom，答案为B。

　　1. A) Ten years B) Twenty years

　　C) Forty years D) A hundred years

　　2. A) 10 years B) 15 years C) 20 years D) 40 years

　　3. A) 4 B) 8 C) 1 D) 2

　　4. A) 5 cents B) 10 cents C) 15 cents D) 20 cents

　　5. A) 25 months B) 5 months

　　C) 12 months D) 6 months

　　6. A) $4 B) $25 C) $5 D) $29

　　7. A) 5 cents B) 15 cents C) 20 cents D) 25 cents

　　8. A) $0.5 B) $2.50 C) $3 D) $1

　　9. A) 5:25 B) 5:55 C) 5:40 D) 5:30

　　10.A) $10 B) $40 C) $30 D) $25

　　1. 【选A】原文重现

　　M: Our university will be celebrating its hundredth anniversary next Monday. Shall we go back for a visit?

　　W: I’d love to. It’s been a decade since we left.

　　Q: How long ago did they graduate from school?

　　听力词汇扩展：

　　go back 回去 go about 从事，着手做;闲逛

　　go over 过一遍，复习 go into 进入;投入;调查

　　2. 【选C】原文重现

　　M: I have been working in this school for a score of years.

　　W: Well, my mum has been working here twice as long as you.

　　Q: How long has the man been working in that school?

　　3. 【选D】原文重现

　　W: What do you think are the chances I’ll get the job?

　　M: Well, I’m talking to four today. We’ll be hiring half.

　　Q: How many people will be employed?

　　听力词汇扩展：

　　apply for 提出申请 apply to 向……申请或要求

　　4. 【选B】原文重现

　　M: I want to send a telegram to San Francisco. How much does it cost?

　　W: Five dollars for the first 15 words and a dime for each additional word.

　　Q: How much will each additional word cost?

　　5. 【选D】原文重现

　　W: You’re thinner than you used to be, aren’t you?

　　M: You bet I am! I’ve been dieting for half a year. I’ve lost 25 pounds and I feel great.

　　Q: How long has the man been dieting ?

　　6. 【选C】原文重现

　　W: I thought this kind of film cost four dollars each roll.

　　M: It used to, but the price has gone up 25%.

　　Q: How much does one roll of the film cost now?

　　听力词汇扩展：

　　go up 上升;(物价等)上涨 go down 下去;(船等)下沉

　　7. 【选A】原文重现

　　M: Do I have enough postage on this package ?

　　W: Let’s see. You already have three-fifteen cent stamps and two twenty-five cent stamps on it .You only need another nickel.

　　Q: How much else will the man pay for the postage ?

　　听力词汇扩展：

　　pay for 付款 pay back 偿还(借款等);回报

　　pay off 还清 pay out 付出(款项等)

　　8. 【选B】原文重现

　　M: How much are the tickets?

　　W: They’re one dollar each for the general public, but student tickets are only a quarter.

　　Q: How much will the man pay for two students ticket and two general public?

　　9. 【选A】原文重现

　　W: Please hurry up, my train is leaving at a quarter to six.

　　M: No problem, Madam. I’ll get you there in five minutes. And fifteen minutes is enough for you to board the station.

　　Q: What time is it now?

　　10. 【选B】原文重现

　　W: Jake, what a nice shirt, where did you get it?

　　M: I bought it from Carrefour Supermarket. All the man’s clothes are on sale for the National Day. It costs only 20 dollars. I saved a half compared with Wal-mart.

　　Q: How much is the shirt in Wal-mart?