大学生英语竞赛A类听力专项强化真题试卷15(题后含答案及解析)

题型有：1.

听力原文：In this section, you will hear a short passage. For questions 21-30, complete the notes using no more than three words for each blank. The passage will be read only once. Remember to write the answers on the answer sheet. Hydroplaning happens when a vehicle moves too quickly along a wet road. A layer of water accumulates under the tires: they lift up and lose traction: the driver loses control. Now, what does NASA have to do with hydroplaning? Here’s a historical look at the science story. Hydroplaning is a relatively new phenomenon for humans, given that the combination of high speed and smooth pavement that’s necessary has only fairly recently become possible. In fact, it wasn’t until 1957 that a tire treadmill study first experimentally demonstrated hydroplaning “in action”. That study was motivated by airplanes. Hydroplaning had been causing a lot of problems for pilots landing on wet runways. Here’s where NASA comes in. NASA scientists wanted to figure out what hydroplaning was all about. So, they collected a lot of data, and produced a mathematical formula to illustrate how quickly a vehicle could travel on a wet surface before entering hydroplane mode. They published the equation in 1963, along with information about the effects of water depth, paving technique, tire tread, and vehicle weight on hydroplaning risk. This publication offered several important safety tips. For example, use well-treaded, fully inflated tires and don’t slam on the brakes if you skid on wet pavement. These suggestions may sound commonplace, and we now also know that vehicles with antilock brakes require slightly different hydroplane handling than those without. However, we can thank those NASA scientists from fifty years ago for getting the word out, and helping to keep all drivers— on runways and roads—safer on rainy days.

In this section, you will hear a short passage. For questions 21-30, complete the notes using no more than three words for each blank. The passage will be read only once. Remember to write the answers on the answer sheet. What is hydroplaning? It may happen on the following occasions: a【D1】______moves too quickly along a wet road: a layer of water accumulates【D2】______: they lift up and lose traction: the driver【D3】______.What actions has NASA taken? They【D4】______a lot of data. They produced a【D5】______. They published the equation【D6】______ , along with information about the【D7】______ of water depth,【D8】______ , tire tread, and vehicle weight on hydroplaning risk.Safety tips Use well-treaded, fully【D9】______tires. Do not slam on the【D10】______if you skid on wet pavement.

1． 【D1】

正确答案：vehicle

解析：(录音一开始便把滑胎(hydroplaning)发生的四种情况分别列举出来，分别为“汽车在湿路上行进过快”、“轮胎下面堆积了一层水”、“他们抬起车却失去摩擦力”以及“司机失控”。该空为第一种情况“a vehicle moves too quickly along a wet road”，因此填写vehicle。)

2． 【D2】

正确答案：under the tires

解析：(参考上题四种情况，该空是滑胎发生的第二种情况“a layer of water accumulates underthe tires”，因此填under the tires。)

3． 【D3】

正确答案：loses control

解析：(该空为第四种情况“the driver loses control”，因此该空填losescontrol，注意driver为第三人称单数，lose要加s。)

4． 【D4】

正确答案：collected

解析：(录音中间部分谈及NASA对解决滑胎问题采取的行动，包括收集数据、创建数学模型、发布相关等式及信息等。该空为第一点“They collected a lot of data”，因此该空填collect—ed，注意该项为他们过去所采取的行动，所以应用一般过去时。)

5． 【D5】

正确答案：malthematical formula

解析：(参考上题行动内容，该空为第二点“…produced a mathematical formula”，因此该空填mathematical formula。)

6． 【D6】

正确答案：in 1963

解析：(谈论NASA发布等式时，涉及到了时间，注意捕捉细节，该空填in 1963。注意不能只填1963，题干没有给出介词，要自行添加。)

7． 【D7】

正确答案：effects

解析：(NASA发布的相关信息主要包括水深、铺路技巧、车轮踏面以及汽车重量对滑胎的影响。因此该空填effects。)

8． 【D8】

正确答案：paving technique

解析：(该空为NASA所发布的相关信息第二点，因此填paving technique。)

9． 【D9】

正确答案：inflated

解析：(录音说完NASA采取的行动后，用举例的方式给出了相关安全贴士，即“使用磨损好、气足的轮胎”以及“不要急踩刹车”，因此该空填inflated。)

10． 【D10】

正确答案：brakes

解析：(该空为贴士第二点“don’t slam on the brakes”，因此该空填brakes。)

听力原文：In this section, you will hear a short passage. For questions 21—30, complete the notes using no more than three words for each blank. The passage will be read only once. Remember to write the answers on the answer sheet. Today, currency is a mixture of coins and paper money. But it wasn’t always that way. Before people had metal coins and paper bills, they used a lot of unusual things for money. In one part of the world, for example, people used sharks’ teeth for money. In some places, brightly colored feathers and rare seashells were money. People in one area even used the hair from elephants’ tails for money. No one knows for sure when people started using metal coins for money. The oldest coins are over 2,500 years old, so we know that people used coins a very long time ago. At first, people used precious metals, such as gold and silver, to make coins. They stamped the shape of a person or animal on each coin to indicate its value. In the 13th century, people in China used iron coins for their currency. These coins weren’t worth very much, and people had to use many of them to buy things. Because it was inconvenient to carry so many coins, the government started making paper receipts. People took these receipts to banks and traded them for coins. This was the first example of paper money. Today, most countries use a mixture of coins and paper bills for their currency. In the United States, the paper bills are all the same size and color. For example, the $ 1 bill is the same size and color as the $100 bill. In many other countries, the bills have different sizes and colors. The smaller bills are worth less money. This makes it easier for people to tell the value of their money. In 2002, twelve European countries started using a completely new currency. It’s called “ the euro”. Many Europeans miss their old currencies, but now it’s easier to move money from one country to another. Here are a few more fascinating facts about the history of money. Feathers were the lightest money ever used. People on the Pacific island of Santa Cruz used them. Stones were the heaviest money ever used. People on the Pacific island of Yap used them. Some weighed over 500 pounds. The smallest money ever used was in Greece. The coins were made of metal, but they were smaller than an apple seed.

In this section, you will hear a short passage. For questions 21—30, complete the notes using no more than three wards for each blank. The passage will be read only once. Remember to write the answers on the answer sheet. The History of Currency Currency before Coins: The oldest coins appeared over【D1】______years ago. They were made of【D2】______like gold and silver. The【D3】______of a person or animal was stamped on each coin to indicate its value. Paper bills: First example, the Chinese government started making【D4】______, which could be traded for coins in【D5】______ Currency today A【D6】______of coins and paper money. Paper bills have different sizes and colors and their【D7】______is easy to identify. Varieties of currency in history 【D8】______were the lightest money ever used on the Pacific island of Santa Cruz. 【D9】______were the heaviest money ever used on the Pacific island of Yap, some of which weighed over 500 pounds. The smallest money was made of metal. The coins were smaller than【D10】______.

11． 【D1】

正确答案：2500

解析：(录音中提到了“The oldest coins are over 2，500 years old，”，因此该空填2500。)

12． 【D2】

正确答案：precious metals

解析：(录音中提到了“At first，people used precious metals，such as gold and silver，to makecoins．”，起初人们利用金银之类的贵金属制作硬币。因此该空应填precious metals。)

13． 【D3】

正确答案：shape

解析：(录音中提到“They stamped the shape of a person or animal on each coin to indicate its val—ue．”，人们将人或动物的形状印在硬币上来说明它的价值。因此该空应填shape。)

14． 【D4】

正确答案：Paper receipts

解析：(录音中提到“Because it was inconvenient to carry so many coins，the government startedmaking paper receipts．”，因为携带很多硬币不方便，所以开始制造纸币。因此该空应填paper receipts。)

15． 【D5】

正确答案：the 13th century

解析：(录音中提到“In the 13th century，people in China used iron coins for their currency.”，13世纪时使用铁制的硬币，然而非常不方便，于是开始制造纸币。可知是在13世纪时开始制造纸币。因此该空应填the 13th century。)

16． 【D6】

正确答案：mixture

解析：(录音中提到“Today，most countries use a mixture of coins and paper bills for their currency”，现在大多数国家的货币是纸币和硬币的混合使用。因此该空应填value。)

17． 【D7】

正确答案：value

解析：(录音中提到“In many other countries，the bills have different sizes and colors．The smallerbills are worth less money．This makes it easier for people to tell the value of their money．”，即纸币不同的大小和形状代表了不同的价值。因此该空应填value。)

18． 【D8】

正确答案：Feathers

解析：(录音中提到“Feathers were the lightest money ever used．”，羽毛是使用过的最轻的货币。因此该空应填Feathers。)

19． 【D9】

正确答案：Stones

解析：(录音中提到“Stones were the heaviest money ever used．”，石头是使用过的最重的货币。因此该空应填Stones。)

20． 【D10】

正确答案：an apple seed

解析：(录音中提到“The smallest money ever used was in Greece．The coins were made of metal，but thev were smaller than an apple seed．”，可以知道硬币是由金属制成的，但是它们比苹果籽还要小。因此该空应填an apple seed。)