1、专业英语四级-171及答案解析 (总分：100.00，做题时间：90分钟)一、PART DICTATION(总题数：1，分数：40.00)1.Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to understand the meaning. For the second and third readings, th
2、e passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be done at normal speed again and during this time you should check your work. You will then be given 1 minute to check through your work once more. Memory（分数：40.00）_二、PART LISTENING
3、 COM(总题数：0，分数：0.00)三、SECTION A TALK(总题数：1，分数：30.00)About Glass and How It Is Made1. Obsidian A kind of 1 Making knives and weapons such as 2 Aztecs: making 3 and jewelry 2. Glass Physical quality: both 4 and 5 Chemical quality: 6 give it a color chemicals can decide color 7 3. Methods of making glas
4、s Core-forming 8 9 4. Glassblowing Uses 10 to quickly reheat the glass Uses metal tools to shape the hot glass （分数：30.00）填空项1:_填空项1:_填空项1:_填空项1:_填空项1:_填空项1:_填空项1:_填空项1:_填空项1:_填空项1:_四、SECTION B CONVERSATI(总题数：2，分数：30.00)（分数：15.00）A.Its very boring.B.He can connect it with the work he has done.C.There
5、 are few things that we dont know about bananas.D.All the above.A.China.B.England.C.Australia.D.Austria.A.Because he liked gardening.B.Because he was a biologist.C.Because he liked eating bananas.D.Because he had a hothouse.A.Because they are difficult to grow in the garden.B.Because they are diffic
6、ult to grow commercially.C.Because they are difficult to grow in tropical areas.D.Because they are difficult to produce in modem times.A.3 years.B.2 years.C.1 year.D.15 months.（分数：15.00）A.People spending more time using smartphones.B.People carrying their smartphones everywhere.C.A nonprofit organiz
7、ation of young people.D.Young people spending more time with screens.A.4.5 hours.B.6 hours.C.6.5 hours.D.9 hours.A.Its a nonprofit childrens organization.B.Its a media rating organization.C.Its a childrens education organization.D.Its a media company.A.Sleeping.B.School education.C.Family life.D.Med
8、ia and technology.A.Teenagers visiting Facebook and doing their homework at the same time.B.Teenagers reading Shakespeare and other novels at the same time.C.Teenagers attending school and doing home assignment.D.Teenagers sending text message and making phone calls using their smartphones.专业英语四级-17
9、1答案解析 (总分：100.00，做题时间：90分钟)一、PART DICTATION(总题数：1，分数：40.00)1.Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to understand the meaning. For the second and third readings, the passage
10、will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be done at normal speed again and during this time you should check your work. You will then be given 1 minute to check through your work once more. Memory（分数：40.00）_正确答案：()解析：听力原文 Scientists
11、spoke to 6,000 adults in eight European countries / and found that while many were able to recall phone numbers from their childhood, / fewer could remember their current work numbers. / About a third turned first to computers to recall information. / British adults seemed to be the worst affected.
12、/ Only about half knew their partners phone numbers. / Researchers say people have become accustomed to / using digital devices as extensions of their brains, / and that repeatedly looking up information / does not create a lasting memory in the same way as simple recollection. 解析 本文主题：数字设备对人类记忆力的影响
13、。本文报道了数字设备对人类记忆力的影响，前半部分阐述研究发现，所以都是过去时，最后一句解释了研究发现的原因，所以是现在时，在听写时要注意时态的变化。文中需要注意的较易拼错的单词有“European，childhood，accustomed，repeatedly和recollection”。二、PART LISTENING COM(总题数：0，分数：0.00)三、SECTION A TALK(总题数：1，分数：30.00)About Glass and How It Is Made1. Obsidian A kind of 1 Making knives and weapons such as
14、2 Aztecs: making 3 and jewelry 2. Glass Physical quality: both 4 and 5 Chemical quality: 6 give it a color chemicals can decide color 7 3. Methods of making glass Core-forming 8 9 4. Glassblowing Uses 10 to quickly reheat the glass Uses metal tools to shape the hot glass （分数：30.00）填空项1:_（正确答案：black
15、glass。）解析： black glass。 听力原文 About Glass and How It Is MadeThroughout history, people from cultures around the world have been making glass. People first found and used glass made by nature. For example, lightning can create tubes of glass when it strikes sand that has the right combination of miner
16、als. Glass pieces produced by lightning are called fulgurites. So today we answer this question as we explore the art of making glass. Obsidian is a kind of black glass formed when the heat of a volcano melts the silica material in sand. Ancient cultures broke off pieces of obsidian to make knives a
17、nd weapons such as arrows. The ancient Aztec civilization in current day Mexico used obsidian for making hunting tools and jewelry. The Aztecs made extremely sharp knives and weapons from obsidian. This is one reason experts say why they never developed the use of metal. Glass is considered a physic
18、al state of matter. It may look solid, but it is a liquid as well. This is because glass has the hardness of crystal materials while also having a disordered arrangement of molecules like a liquid. The chemical quality of glass is what makes up its color. Impurities in glass such as iron can give it
19、 a green or brown color. Adding chemicals to the glass can give it different color intensities and effects. For example, adding copper to glass can make it blue, while adding tin can make it white. One of the earliest methods developed for making glass containers is called core-forming. A glassmaker
20、 places a rounded piece of clay material on the end of a long metal stick. Once the clay dries, the glassmaker dips the form in a container of hot liquid glass until it is covered. The artist can then add a second color of glass to make designs over the first layer of glass. Once the glass form cool
21、s completely, it is taken off the metal stick. The clay inside is carefully cut out to form a glass container. Another ancient method of making glass that is still used today is called casting. Casting involves making a clay form in which the shape of the glass container is carved. Then, the artist
22、puts small pieces of glass material inside the clay form. When it is cooked at a very high temperature, the glass pieces melt and take the shape of the clay form. Once the solid glass object cools, an artist uses special tools to carve an opening in the container. But it was another method of making
23、 glassthe blown glass methodthat changed the glass industry of the ancient world. It was first developed in the Roman Empire about two thousand years ago. This new technology made glass production faster and less costly. A glass container made by casting or core-forming could take a few days to make
24、. With glass blowing, an artist could make many containers in a day. In modem terms, the hot oven that the glassblower uses to quickly reheat the glass is called a glory hole. The artist can shape the hot glass using metal tools such as jacks, tweezers and shears. Or, he or she can place the hot gla
25、ss on a metal table called a marver to shape the form by rolling it back and forth. Watching an expert glassblower is an exciting experience. The artist moves as quickly and as gracefully as a dancer. So now you have known the ancient and current methods of making glass. About the use of glass. We c
26、an see glass everywhere in our daily life. 解析 定义题。Obsidian指的是黑曜石。录音中提到“Obsidian is a kind of black glass formed when the heat of a volcano melts the silica material in sand.”。所以答案是black glass。 填空项1:_（正确答案：arrows。）解析： arrows。解析 举例题。录音中提到了古代人们用黑曜石来制作武器，“Ancient cultures broke off pieces of obsidian to
27、 make knives and weapons such as arrows.”。 填空项1:_（正确答案：hunting tools。）解析： hunting tools。解析 细节题。录音中提到的jewelry是个提示信息，答案会一起出现。“The ancient Aztec civilization in current day Mexico used obsidian for making hunting tools and jewelry.”。 填空项1:_（正确答案：solid。）解析： solid。解析 信息题。关于玻璃的物理特质，既是固体，又是液体，录音中提到“It may
28、look solid, but it is a liquid as well.”。题目要求填两个，此处应填solid，固体。 填空项1:_（正确答案：liquid。）解析： liquid。解析 信息题。关于玻璃的物理特质，既是固体，又是液体，录音中提到“It may look solid, but it is a liquid as well.”。题目要求填两个，此处应填liquid，液体。 填空项1:_（正确答案：impurities (in glass)。）解析： impurities (in glass)。解析 细节题。关于玻璃的化学特质，录音提到“Impurities in glass
29、 such as iron can give it a green or brown color.”可知，杂质赋予玻璃颜色。 填空项1:_（正确答案：intensities and effects。）解析： intensities and effects。解析 细节题。录音提到“Adding chemicals to the glass can give it different color intensities and effects.”，即化学物质会给玻璃带来颜色深浅和效果的不同。 填空项1:_（正确答案：Casting。）解析： Casting。解析 定义题。录音中提到了三种制作玻璃的
30、方法，第二种就是casting。 填空项1:_（正确答案：Blown glass method。）解析： Blown glass method。解析 定义题。录音中提到了三种制作玻璃的方法，第三种就是blown glass method。 填空项1:_（正确答案：the hot oven/glory hole。）解析： the hot oven/glory hole。解析 信息题。录音提到“In modern terms, the hot oven that the glassblower uses to quickly reheat the glass is called a glory h
31、ole.”。所以两个答案都可以。 四、SECTION B CONVERSATI(总题数：2，分数：30.00)（分数：15.00）A.Its very boring.B.He can connect it with the work he has done.C.There are few things that we dont know about bananas.D.All the above.解析：听力原文 W: Hi, David. How are you going with your tutorial paper on Australian studies? M: Ive finis
32、hed it actually. W: Great. What did you do it on? Im still trying to find an interesting topic. M: Well . after some consideration I decided to look at the history of banana growing in Australia. W: Banana growing! M: Well . its not as boring as youd think. And I wanted to tie it into the work Ive b
33、een doing on primary industries and the economy. Anyway I bet there are a few things you didnt know about bananas! W: Such as? M: Such as the fact that bananas were among the first plants ever to be domesticated. W: Oh, really? I suppose youre going to tell me the whole history of banana growing now
34、, arent you? M: Well, itd be a good practice run for my tutorial next week. Ill do the same for you some time. W: OK. So where were these bananas first domesticated? M: According to my research, the Cavendish banana, which is a type of banana and the first type to be cultivated here, actually origin
35、ated in China but they had a fairly roundabout route before they got to Australia. W: You mean they didnt go straight from China to Australia? M: No, they didnt. It seems that in 1826, bananas were taken from South China to England. There was an English Duke who was particularly fond of bananas and
36、he used to cultivate them in his hothouse, which is where you have to grow them in England, of course, because of the cool climate and they became quite popular in the UK. So he was the one responsible for cultivating the Cavendish banana which was then introduced into Australia. W: I see. And weve
37、been growing them ever since? M: Yes. W: Are they hard to grow? M: Well, yes and no. To grow them in your garden, no, not really. But to grow them commercially you need to know what youre doing. You see you only get one bunch of bananas per tree and it can take up to three years for a tree to bear f
38、ruit if you dont do anything special to it. But this period is greatly reduced with modern growing methods, particularly in plantations where you have perfect tropical conditions. W: Right! So what are you looking at? One year? Two years? M: No, no, around 15 months in good conditions for a tree to
39、produce a bunch of bananas. And once youve got your bunch you cut the bunch and the plant down. W: Thats interesting! Im sure the tutorial paper will go really well. You certainly seem to have done your research on the subject. M: Lets hope so. What does the man think of his research topic? 解析 观点题。问
40、题是男士对自己所选研究题目的看法。谈话中当女士对男士的选题表示疑惑时，男士回答道：“.its not as boring as youd think. And I wanted to tie it into the work Ive been doing on primary industries and the economy. Anyway I bet there are a few things you didnt know about bananas!”，由此可见，该题目并没有女士想象的那样无聊(选项A错误)，有一些你所不知道的信息(选项C错误)，所以正确答案为B。A.China.B.
41、England.C.Australia.D.Austria.解析：听力原文 Which country did the Cavendish banana originate in? 解析 细节题。问题是Cavendish香蕉原产于哪国。谈话中男士说：“According to my research, the Cavendish banana, which is a type of banana and the first type to be cultivated here, actually originated in China but they had a fairly roundab
42、out route before they got to Australia.”，因此答案为A。A.Because he liked gardening.B.Because he was a biologist.C.Because he liked eating bananas.D.Because he had a hothouse.解析：听力原文 Why did the English Duke introduce bananas to England? 解析 细节题。问题是为何那位英国公爵将香蕉引入英格兰。对话中男士说“It seems that in 1826, bananas were
43、 taken from South China to England. There was an English Duke who was particularly fond of bananas and he used to cultivate them in his hothouse, which is where you have to grow them in England”，由此可见他十分喜欢香蕉，所以将其引入，答案为C。A.Because they are difficult to grow in the garden.B.Because they are difficult t
44、o grow commercially.C.Because they are difficult to grow in tropical areas.D.Because they are difficult to produce in modem times.解析：听力原文 According to the man, why are bananas difficult to grow? 解析 观点题。问题是香蕉的种植为什么很困难。谈话中男士认为“Well, yes and no. To grow them in your garden, no, not really. But to grow
45、them commercially you need to know what youre doing. You see you only get one bunch of bananas per tree and it can take up to three years for a tree to bear fruit if you dont do anything special to it. But this period is greatly reduced with modem growing methods, particularly in plantations where y
46、ou have perfect tropical conditions.”，由此可见，在自己的花园里种，not difficult(选项A错误)；但是大批量生产就需要有方法，所以difficult(选项B正确)。能够缩短香蕉产期的是modern growing method(选项D错误)，而且在tropical conditions更易种植(选项C错误)，因此B为正确答案。A.3 years.B.2 years.C.1 year.D.15 months.解析：听力原文 With modem methods, how long would it take to produce a bunch of bananas? 解析 数字题。对话中女士问：“So what are you
