四級(jí)聽力中計(jì)算類題型常見短語（附例題）

相對其他題型而言，計(jì)算類是四級(jí)聽力中的基礎(chǔ)題(可分為計(jì)算題、細(xì)節(jié)辨認(rèn)題、等值轉(zhuǎn)換題)，也應(yīng)該是你的搶分題，故不可“大意失荊州”。地球人都知道四級(jí)中聽力的計(jì)算類不是在考咱們連小學(xué)生一年級(jí)都會(huì)做的加減乘除，測評大家的IQ，醉翁之意不在酒，而是在考大家對英語聽力的反應(yīng)速度，只要意識(shí)到這一點(diǎn)，現(xiàn)在你就要學(xué)會(huì)如何運(yùn)用技巧來所謂的“抓魚”了——核心在于抓住關(guān)鍵的細(xì)節(jié)所在之處，in a other word，你要知道根據(jù)題意該聽什么，怎么把它去聽準(zhǔn)。

計(jì)算題

M: When does the next shuttle bus leave?

W: You have just missed one by 20 minutes. We have a bus every 45 minutes, so you’ll have to wait for a while.

Q: How long does the man need to wait for the next bus?

A) 25 minutes B) 65 minutes

C) 20 minutes D) 45 minutes

【解析】 當(dāng)你看見這四個(gè)選項(xiàng)，不難發(fā)現(xiàn)這一題是在考與時(shí)間有關(guān)的內(nèi)容，并且從選項(xiàng)當(dāng)中可以推測到是考時(shí)間的加減關(guān)系，因?yàn)槠渲腥齻€(gè)選項(xiàng)都是正確答案的干擾選項(xiàng)，說到這里，你就要做好充分的思想準(zhǔn)備。原文中除了聽清20和45兩個(gè)數(shù)字之外，重要的是明白其之間的聯(lián)系，通過missed知道已經(jīng)錯(cuò)過，而介詞“by”專門用在計(jì)算題表差額;通過every知道每輛車之間45分鐘，問的是wait for the next bus 還得等多長時(shí)間，很清楚這里是減法的計(jì)算關(guān)系，所以選擇A。

細(xì)節(jié)辨認(rèn)題

M: I wonder if Jack will come here by 11 o’clock.

W: His wife said he left home at 10:30, so he should be here at 11:20 at the latest.

Q: What time did Jack leave home?

A) 11:20 B) 10:30 C) 10:50 D) 11:30

【解析】 原文中出現(xiàn)三個(gè)數(shù)字，11:00是Man覺得杰克應(yīng)該到的時(shí)間;10:30是杰克的妻子說他離開家的時(shí)間;11:20是Woman認(rèn)為杰克應(yīng)該到的時(shí)間。我們再來看問題，選B是對號(hào)入座。

【死馬活醫(yī)】 如果沒聽清，這里就要充分運(yùn)用技巧來猜選，時(shí)間中的B和C選項(xiàng)，可以合并小時(shí)“10”;時(shí)間中的B和D選項(xiàng)，可以合并分鐘“30”，通過合并同列項(xiàng)方法，就能猜選答案為B。

等值轉(zhuǎn)換題

M: These postcards cost 60 cents a dozen.

W: Two dozen should certainly do.

Q: How many postcards will the man buy?

A) 60 B) 12 C) 24 D) 16

【解析】 第一句話是“聲東擊西”，60美分一打，問題并不是我們所期待的考多少錢，考價(jià)格，而是在問數(shù)量，第二句話提到數(shù)量，但前面加了pair,意味著要乘以2。除了清楚這些還不夠，dozen是英語中數(shù)字的代用詞，表示12。所以選C。

常見的數(shù)字計(jì)算類提問形式：

1. What time…? 5. How far…?

2. How much/many…? 6. How often…?

3. How long…? 7. How old…?

4. When…?

先來熱熱身 (音頻暫缺)

1. A) 6 B) 15 C) 20 D) 21

2. A) 5:00 B) 5:15 C) 5:30 D) 5:45

3. A) $ 2 B) $ 20 C) $ 12 D) $ 10

4. A) 5:00 B) 5:15 C) 5:30 D) 5:45

5. A) in 5 minutes B) in 10 minutes

C) in 15 minutes D) in 25 minutes

1. 【選D】原文重現(xiàn)

M: Tom must be over twenty now.

W: I think so, when I left Paris six years ago, he was already fifteen.

Q: How old is Tom now?

2. 【選B】原文重現(xiàn) 1997.1

M: What’s the time for departure?

W: 5:30. That only leaves us 15 minutes to go through the customs and check our baggage.

Q: At what time did the conversation take place?

3. 【選C】原文重現(xiàn)

W: Good evening , sir. Why not try our dry beer. Two dollars for each bottle, and twenty for a dozen.

M: Well, a dozen is too much for me. Give me a half.

Q: How much does the man need to pay?

4. 【選C】原文重現(xiàn)

W: It’s five already, I suppose the meeting will be postponed to 5:45.

M: Well, the secretary said something unexpected happened. The meeting will begin in 30 minutes.

Q: When will the meeting begin?

5. 【選D】原文重現(xiàn)

W: Excuse me, sir. Does the No.1 bus stop here?

M: Yes, but the bus only runs every half hour and one just went by five minutes ago.

Q: When will the No.1 bus come?