Recriado a partir de relatos de candidatos — não é material oficial do IELTS. Áudios e textos são recriações para prática.
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IELTS Listening Transcript
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PART 1
Speaker 0: You will hear a number of different recordings, and you will have to answer questions on what you hear. There will be time for you to read the instructions and questions, and you will have a chance to check your work. All the recordings will be played once only. The test is in four sections. Write all your answers in the listening question booklet. At the end of the test, you will be given ten minutes to transfer your answers to an answer sheet. Now turn to section one on page two of your question booklet. Section one. You will hear a telephone conversation between a travel agent and a customer. First, you have some time to look at questions one to six on page two. You will see that there is an example that has been done for you. On this occasion only, the conversation relating to this will be played first.
Speaker 2: Hello, Bakewell Travel. How can I help? Oh, hello. My name's Sarah Carter. I wonder if you could tell me about the price of plane tickets to Dubai.
Speaker 0: The customer wants to travel to Dubai, so Dubai has been written in the space. Now we shall begin. You should answer the questions as you listen because you will not hear the recording a second time. Listen carefully and answer questions one to six.
Speaker 1: Hello. Bakewell Travel. How can I help? Oh, hello. My name's Sarah Carter.
Speaker 2: I wonder if you could tell me about the price of plane tickets to Dubai.
Speaker 1: Our computers are down, so what I can do is take some details about you and your travel plans. Then when everything's okay again, I can call you back. Alright? Okay then. Right. So some details first. Your name was Sarah Carter, wasn't it? That's right. And can I take a contact phone number?
Speaker 2: 07958847222.
Speaker 1: Now I'll probably need to get back to you on this. Shall I call you back tomorrow morning?
Speaker 2: Oh, I work on Wednesdays. Can you call me back on Thursday before twelve? Fine.
Speaker 1: Okay. So missus Carter, how many tickets will you need? Three adults and four children.
Speaker 1: So seven altogether. Are all the children under the age of 14? They are. Yes. Which date do you wish to travel on?
Speaker 2: Well, we definitely need to be there for the twenty fourth. So if we leave The UK on the twenty second, we'll have time to recover on the twenty third.
Speaker 1: So the October 22?
Speaker 2: Not this month. Next month. November. Right. And I assume these are return tickets. Yes. We want to fly back on the Tuesday. Is that the twenty fifth or the twenty sixth? It's the twenty fifth.
Speaker 1: So it's going to be a short holiday. We're going to a wedding. We're not going for a holiday. Oh, that's nice. Now do any travelers have any special requirements? You know, special assistance with mobility and that sort of thing. Oh, well, actually, yes. My son's allergic to cheese.
Speaker 2: It makes him really, really ill. Fine.
Speaker 1: So as soon as I can, I'll look into finding some tickets for you.
Speaker 0: Before you hear the rest of the conversation, you have some time to look at questions seven to 10 on page two. Now listen and answer questions seven to 10.
Speaker 1: Now I wonder if I could just ask you a couple of questions as part of our market research. Would you be happy to do that? Will this take long? Just a couple of minutes. That's all. Okay. So how many foreign visits have you made in the last twelve months? About six, I suppose. And where was your last foreign trip?
Speaker 2: Well, I was in Egypt in May.
Speaker 1: Then most recently India. Oh, nice. Yes. I'm off for some IT training in Bangalore next month, actually. And was that a vacation?
Speaker 1: I'd love to go back there for a holiday, but it was for business this time. And I presume you use the Internet? I do. Yes. And so you've seen our website? Yes. I had a look this morning, actually. Well, we had it redesigned a month ago, and we're keen to get feedback on how our customers find it. So Oh, right.
Speaker 2: Oh, okay. Well, I have to say I found it terribly slow.
Speaker 1: So I just gave up and thought I'd give you a call. Oh, well, I'm sorry to hear that. But, yes, it does happen sometimes. Would it be okay for us to email you with any promotional offers?
Speaker 2: I suppose so. Well, okay. My address is carter.s@speedtech.com.
Speaker 1: Is that s p, e e, d t e c h?
Speaker 2: Yes.
Speaker 1: That's great. And can I ask how you found out about Bakewell Travel?
Speaker 0: That is the end of section one. You now have half a minute to check your answers.
PART 2
Speaker 4: Part two. You will hear the manager of Cretan Running Sports Club called Dave giving some information about the running competition, which will be held next month. First, you have some time to look at questions 11 to 17. Now listen carefully and answer questions 11 to 17.
Speaker 5: Good morning, everyone. I'm Dave, the manager of Cretan Running Sports Club. Today, I'll tell you something about the running competition, which will be held next month. As we know, the annual run is one of the most popular events in our town, and it attracts young and old every year. This year, we will continue the tradition, but there'll be some small adjustments. First, about the date. The exact time of the run is still on the first Saturday of May, but we'll inform you in advance if it's to be delayed due to bad weather. The run used to start at the park, which is being refurbished at the moment, so this time, all the runners are expected to gather in front of the castle and start from there. The actual run begins at 9 AM, but the runners start arriving at about 08:45. So some of you might have to get up early that morning if you live far away. Someone has asked how long you'll be required to run. In the past few years, the runners have had to complete the distance of five miles, but most people want to do a bit more than that, so we will lengthen it to seven miles this time. Some of you might not be sure whether you can run that far, so you'd better start doing a bit of training. I'm excited to tell you that this year, we've got the sponsorship from a big company who has promised to cover all the competition expenses, including the prize for the champion. The runner with the shortest time will be awarded sports equipment worth about £1,000. Each runner will be timed from the starting point till the end. When you cross the finish line marked on the ground of the station, you'll be given a barcode, and you should take this to one of the run volunteers who will scan it. Then you can get your time on the computer immediately, and the volunteers will collect all the results. If you are interested in the run, I suggest you register as soon as possible. The deadline is next Sunday. However, I should tell you this year, you can't enroll through the Internet but have to go to the town hall and give all the personal information and sign your name. It doesn't cost anything to register. As I've just said, all the costs related to the competition will be paid by our sponsor. As for the age limit, you have to be at least 16, and the top limit is now 70, though you need to obtain a health certificate from your doctor if you're over 60 years old. If you do come and participate in the run, I definitely recommend that you should prepare an extra pair of shoes, as last year, one of the runners got something wrong with his shoes during the running and had to give up halfway through the competition. Besides, a jacket will also be advisable so you don't catch a cold after sweating a lot during the running. There is no need to worry about snacks or drinks as every runner will be supplied with chocolates and bottled water.
Speaker 4: Before you hear the rest of the talk, you have some time to look at questions 18 to 20. Now listen and answer questions 18 to 20.
Speaker 5: To prepare for this annual running competition, our club is going to organize a training class for all the participants. In the class, an experienced trainer will teach you the professional steps on how to do a running competition, like warming up before running. For those who plan to do training by yourselves, there are some suggestions for you. First, don't just do morning jogging with your dog. Remember that you're going to compete with others. I know some people like to exercise in groups, but it's more effective to run with your friend who can be your rival and stimulate your potential. Then I suggest you make a record of your running time. It can show whether you've made any progress day by day. What's more, you'd better get used to different roads and paths in the countryside or village as you won't just be running on level ground during the competition. By the way, you don't have to run-in all kinds of weather. As I've just said, our competition is going to be held in good weather. Well, that's all the details about the running competition. If you have any other questions, please call our club at 83456234. Anyone who is interested in the run just get started.
Speaker 4: That is the end of part two. You now have thirty seconds to check your answers to part two.
PART 3
Speaker 6: Section three. You'll hear two students named Rick and Nina discussing about selective courses. First you have some time to look at questions 21 to 26. Now listen carefully and answer questions 21 to 26.
Speaker 6: Hey, Nina. Have you chosen a selective course yet?
Speaker 3: Not really, Rick. I haven't made up my mind yet. What about you? Me either. We have to decide as soon as possible, though.
Speaker 3: Why? Today's not the final day for choosing selective courses, is it?
Speaker 6: No, but they'll be booked up very soon. Actually, some courses are already full.
Speaker 3: Really? That's too bad. Well, I was thinking of taking a language course.
Speaker 6: What do you think? Yes, you can do that. You can choose all courses on the school website except mathematics, since it's a required course for all students. By the way, I think business course is a good choice.
Speaker 3: Yeah. It's not bad. I think it's going to be quite helpful after we graduate.
Speaker 6: I think so. Guess what? I wanted to choose information statistics.
Speaker 3: Why?
Speaker 6: It's related to our major, so I think it's very useful for us. I mean, we will have an advantage in job hunting. But the bad thing is it's in the morning, so we have to skip other classes in order to take it. That's not good.
Speaker 3: We need to find an alternative that is more convenient for us.
Speaker 6: I know. It's a shame. Nina, I think we need to get to know the courses more before choosing them. Otherwise, we may end up studying something that's either boring or useless.
Speaker 3: You're right. Maybe we can look online to see if there's information about it. We could also ask our parents for advice.
Speaker 6: I don't think that's going to help much. People have all kinds of opinions online. We wouldn't know which one to listen to, and our parents probably don't know much about our field. I think the best way is asking the former students who have taken the class themselves. They can tell us how they thought about it from their own experience.
Speaker 3: Oh, yes. They know it better than anyone, just like how much we know the art design class.
Speaker 6: Yes. Before we took it last year, many people said on the Internet that it was quite confusing, but it turned out to be quite easy and helpful. Right?
Speaker 3: Mhmm. It didn't let us down. I definitely value the course. Design is an important skill in today's world. Well, whatever course we want to choose, there are still things I need to figure out. What do you mean? Do you mean things like the time of the courses? Since it's the first time we can choose selective courses, I need to know how to register. I think there will be instruction on our school website for registration.
Speaker 6: I'll let you know. You are so considerate, Nina. I think that's necessary. We need to make sure we can register as soon as we make up our mind.
Speaker 6: Before you hear the rest of the discussion, you have some time to look at questions 27 to 30. Now listen and answer questions 27 to 30.
Speaker 3: The courses we studied last semester were quite interesting. Maybe we could get some inspiration from those courses. Do you think so?
Speaker 6: Well, yeah. Some of them were quite fun for me, such as metallurgy, though there were quite a lot of terms to remember.
Speaker 3: But there's also a lot of useful information about it on the internet, which made things easier.
Speaker 6: That's right. I can refer to many things when I was working on the paper.
Speaker 3: And the professor in fluid mechanics was really patient. His explanation was crystal clear, so students had no difficulty understanding it. Yes,
Speaker 6: that's true. I was good at this course. What do you think of computing?
Speaker 3: I think it was kind of boring in the beginning.
Speaker 6: Do you think so? That's exactly how I felt. There are a lot of numbers to deal with. But thankfully, it got more interesting when the course went on.
Speaker 3: Right. Because later we could relate the theories to real life examples.
Speaker 6: Exactly. Another course that I think was really practical is energy economy.
Speaker 3: Oh, yes. There are a lot of practical works in the course. What we learned can come in handy in our future jobs.
Speaker 6: We should make the decision based on our own experience and preference. Yeah. Anyway, we really need to hurry up. I'm sure we can reach a conclusion today.
Speaker 6: That is the end of section three. You now have half a minute to check your answers.
PART 4
Speaker 0: Part four. You will hear part of a presentation to biology students on new research into sea lions. First, you have some time to look at questions 31 to 40. Now listen carefully and answer questions 31 to 40.
Speaker 7: Hello, everybody. I'm here today to tell you about a new research study that my team here at the university is doing on the sea lions that live along the coast of Western Australia. You may be wondering why we've been studying this animal. Well, Australian sea lions have been identified as an endangered species, so there's a real need to count them and find out just how many there are. Up until 1892, the population of these animals was severely depleted because of hunting. That's no longer allowed. But today there is a new danger. Sea lions often forage for food in the same areas along the coastlines where there are nets used to catch sharks. Unfortunately, they tend to get caught up in the nets by accident and drown. Now we wanted to monitor the population of sea lions in this area, but we weren't sure of the best way to do it. There are several different animal tracking methods, which vary in their effectiveness, and there are different factors to consider. One of the most important of these is the cost, but you also have to consider how easy your chosen method is to use. You may choose a traditional method, like a plastic tag. They're relatively straightforward to attach, but they're really only suitable to use with animals that you can catch quite easily. You might also go with a more modern method like GPS tracking, which uses satellite technology to transmit data on the animal around the clock. One drawback for marine animals, though, is that they don't transmit a signal in the ocean. You only get data when they're on land. There are certain large animals in remote areas that have to be tracked using a helicopter. The polar bear is a good example. Now an important part of tracking is being able to clearly identify the animal. Some, like zebras, are identified by markings such as their stripes, while the dolphin usually has distinguishing scars on its body that can help tell them apart. Sea lions don't have any markings like this, which is just one of the challenges of tracking them. When researchers in Perth tried to use electronic tags in a sea lion study, they found that the sea lions had removed their tracking devices by deliberately rubbing up against rocks. This was something the researchers hadn't anticipated. Researchers in California studying American sea lions tried a different method. They applied paint to the animals. They thought this would be a better, less invasive means of identification. Unfortunately, this didn't work so well either because sea lions molt every year and shed their fur along with the identifying mark. So let's look at our current study. We have several aims that we'd like to achieve. The first of these is to try to establish where the sea lions can be identified from the whiskers on their face. These are much coarser than a cat's whiskers, so easier to see. Our theory is that the pattern of these whiskers may be as individual as a fingerprint on a human. If this is in fact true, then we think this could be an effective way to identify them. Our second aim is to come up with a diagram of sea lion whisker patterns so this can be used as a guide for us and other studies. We're using a few different methods to help us do all this. We know that we need to build up a wide range of visual data. So firstly, we've been in touch with zoos around Australia to gather photographs from them of the faces of any sea lions they have. This won't be enough to achieve our purpose, though, so we're also broadening our search by inviting the public to take part in our research. We're hoping this will result in hundreds of useful images we can use.
Speaker 0: That is the end of part four. You now have one minute to check your answers to part four.
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Chinese Translation
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第一部分
Speaker 0:你将听到几段不同的录音,并需要根据听到的内容回答问题。你会有时间阅读说明和问题,并且有机会检查你的答案。所有录音只会播放一次。考试分为四个部分。请将所有答案写在听力问题册上。考试结束时,你会有十分钟时间将答案誊写到答题纸上。现在翻到问题册第二页的第一部分。第一部分。你将听到一段旅行社代理和顾客之间的电话对话。首先,你有时间看一下第二页的第一到第六题。你会看到一个已经为你完成的示例。仅此一次,与此相关的对话将首先播放。
Speaker 2:你好,贝克韦尔旅行社。有什么可以帮您的吗?哦,你好。我叫莎拉·卡特。我想问一下去迪拜的机票价格。
Speaker 0:顾客想去迪拜,所以空格里填了迪拜。现在我们要开始了。你应该边听边回答问题,因为你不会第二次听到录音。仔细听并回答第一到第六题。
Speaker 1:你好。贝克韦尔旅行社。有什么可以帮您的吗?哦,你好。我叫莎拉·卡特。
Speaker 2:我想问一下去迪拜的机票价格。
Speaker 1:我们的电脑系统现在出故障了,所以我能做的是先记录一些关于您和您旅行计划的详细信息。等系统恢复后,我可以给您回电话。可以吗?好的。那么先记录一些信息。您的名字是莎拉·卡特,对吗?是的。能给我一个联系电话吗?
Speaker 2:07958847222。
Speaker 1:我可能需要就此事再联系您。我明天早上给您回电话可以吗?
Speaker 2:哦,我星期三上班。你能在星期四中午之前给我回电话吗?好的。
Speaker 1:好的。卡特女士,您需要几张票?三个大人和四个孩子。所以一共七张。所有孩子都在14岁以下吗?是的。您希望哪天出发?
Speaker 2:嗯,我们必须在24号到达那里。所以如果我们22号离开英国,我们可以在23号恢复一下。
Speaker 1:所以是10月22号?
Speaker 2:不是这个月。下个月。十一月。好的。我猜这些是往返票。是的。我们想星期二飞回来。那是25号还是26号?是25号。
Speaker 1:那这将是一个短暂的假期。我们是去参加婚礼。不是去度假。哦,那很好。现在,有任何旅客有特殊要求吗?你知道的,比如行动方面的特殊协助之类的。哦,实际上,有的。我儿子对奶酪过敏。这会让他病得很厉害。好的。所以我会尽快为您查找一些机票。
Speaker 0:在你听到对话的其余部分之前,你有时间看一下第二页的第七到第十题。现在听并回答第七到第十题。
Speaker 1:现在我想问您几个问题,作为我们市场调研的一部分。您愿意吗?这会花很长时间吗?就几分钟。就这样。好的。那么,在过去十二个月里,您出国旅行了几次?大概六次吧。您上次出国旅行是去哪里?
Speaker 2:嗯,我五月份在埃及。
Speaker 1:然后最近一次是印度。哦,不错。是的。实际上,我下个月要去班加罗尔参加一些IT培训。那是度假吗?我很想再去那里度假,但这次是出差。我猜您使用互联网?是的。那么您看过我们的网站吗?是的。实际上我今天早上看了一下。嗯,我们一个月前重新设计了网站,我们很想听听顾客对它的看法。哦,这样啊。
Speaker 2:哦,好的。嗯,我得说我觉得它非常慢。
Speaker 1:所以我就放弃了,想着还是给你们打个电话。哦,听到这个我很遗憾。但是,是的,这种情况有时会发生。我们可以通过电子邮件向您发送促销优惠信息吗?
Speaker 2:我想可以吧。嗯,好的。我的邮箱地址是 carter.s@speedtech.com。
Speaker 1:是 s p, e e, d t e c h 吗?
Speaker 2:是的。
Speaker 1:太好了。我能问一下您是怎么知道贝克韦尔旅行社的吗?
Speaker 0:第一部分到此结束。你现在有半分钟时间检查你的答案。
第二部分
Speaker 4:第二部分。你将听到克里特跑步运动俱乐部的经理戴夫介绍下个月将要举行的跑步比赛的信息。首先,你有时间看一下第11到第17题。现在仔细听并回答第11到第17题。
Speaker 5:大家早上好。我是戴夫,克里特跑步运动俱乐部的经理。今天,我将向大家介绍下个月将要举行的跑步比赛。众所周知,年度跑步比赛是我们镇最受欢迎的活动之一,每年都吸引着老少参与。今年,我们将延续这一传统,但会做一些小的调整。首先是关于日期。比赛的具体时间仍然是五月的第一个星期六,但如果因天气不好而推迟,我们会提前通知。比赛过去从公园开始,但公园目前正在翻新,所以这次,所有参赛者都应在城堡前集合,并从那里出发。比赛实际上在上午9点开始,但参赛者大约在08:45开始到达。所以,如果你住得远,那天早上可能得早起。有人问需要跑多远。在过去的几年里,参赛者需要完成五英里的距离,但大多数人想跑得更远一些,所以这次我们将延长到七英里。有些人可能不确定自己是否能跑那么远,所以你最好开始做一些训练。我很兴奋地告诉大家,今年我们得到了一家大公司的赞助,他们承诺承担所有比赛费用,包括冠军的奖品。用时最短的参赛者将获得价值约1000英镑的运动器材。每位参赛者将从起点到终点计时。当你穿过标在车站地面上的终点线时,你会得到一个条形码,你应该把它交给一位比赛志愿者,他们会扫描它。然后你可以立即在电脑上看到你的时间,志愿者们会收集所有结果。如果你对比赛感兴趣,我建议你尽快报名。截止日期是下周日。但是,我要告诉你,今年你不能通过互联网报名,而必须去市政厅,提供所有个人信息并签名。报名不收取任何费用。正如我刚才所说,所有与比赛相关的费用都将由我们的赞助商支付。至于年龄限制,你必须至少16岁,最高年龄限制现在是70岁,不过如果你超过60岁,需要从医生那里获得健康证明。如果你真的来参加比赛,我强烈建议你准备一双额外的鞋子,因为去年,一名参赛者在跑步过程中鞋子出了问题,不得不在比赛进行到一半时放弃。此外,建议带一件夹克,这样在跑步大量出汗后就不会感冒了。不用担心零食或饮料,因为每位参赛者都会得到巧克力和瓶装水。
Speaker 4:在你听到讲话的其余部分之前,你有时间看一下第18到第20题。现在听并回答第18到第20题。
Speaker 5:为了准备这次年度跑步比赛,我们俱乐部将为所有参与者组织一个训练班。在训练班上,一位经验丰富的教练会教你如何进行跑步比赛的专业步骤,比如跑步前的热身。对于那些计划自己训练的人,这里有一些建议给你。首先,不要只是早上和你的狗一起慢跑。记住,你要和别人竞争。我知道有些人喜欢集体锻炼,但和你的朋友一起跑更有效,他可以成为你的对手,激发你的潜力。然后我建议你记录你的跑步时间。这可以显示你是否每天都在进步。更重要的是,你最好习惯乡村或村庄里不同的道路和小径,因为在比赛中你不会只在平地上跑步。顺便说一句,你不必在各种天气下跑步。正如我刚才所说,我们的比赛将在好天气下举行。好了,这就是关于跑步比赛的所有细节。如果你还有其他问题,请拨打我们的俱乐部电话83456234。任何对跑步感兴趣的人都可以开始准备了。
Speaker 4:第二部分到此结束。你现在有三十秒时间检查第二部分的答案。
第三部分
Speaker 6:第三部分。你将听到两名学生瑞克和尼娜讨论选修课。首先,你有时间看一下第21到第26题。现在仔细听并回答第21到第26题。
Speaker 6:嘿,尼娜。你选好选修课了吗?
Speaker 3:还没有,瑞克。我还没决定。你呢?我也没。不过我们得尽快决定。
Speaker 3:为什么?今天不是选选修课的最后一天,对吧?
Speaker 6:不是,但很快就会被报满。实际上,有些课程已经满了。
Speaker 3:真的吗?那太糟糕了。嗯,我在考虑选一门语言课。
Speaker 6:你觉得怎么样?是的,你可以选。除了数学之外,你可以选择学校网站上的所有课程,因为数学是所有学生的必修课。顺便说一下,我觉得商科课程是个不错的选择。
Speaker 3:是的。还不错。我觉得毕业后会很有用。
Speaker 6:我也这么想。你猜怎么着?我想选信息统计学。
Speaker 3:为什么?
Speaker 6:它和我们的专业相关,所以我觉得对我们很有用。我的意思是,我们在找工作时会有优势。但不好的是它在早上,所以我们为了上它得翘掉其他课。那不太好。
Speaker 3:我们需要找一个对我们来说更方便的替代课程。
Speaker 6:我知道。真可惜。尼娜,我觉得我们在选课之前需要更多地了解这些课程。否则,我们最后可能会学一些要么无聊要么没用的东西。
Speaker 3:你说得对。也许我们可以在网上看看有没有相关信息。我们也可以问问父母的意见。
Speaker 6:我觉得那没什么帮助。网上的人意见五花八门。我们不知道该听谁的,而且我们的父母可能对我们的领域不太了解。我认为最好的方法是问那些上过这些课的学长学姐。他们可以根据自己的经验告诉我们他们的看法。
Speaker 3:哦,是的。他们比任何人都了解,就像我们有多了解艺术设计课一样。
Speaker 6:是的。去年我们选它之前,很多人在网上说它很让人困惑,但结果发现它既简单又有用。对吧?
Speaker 3:嗯。它没让我们失望。我非常重视这门课。设计在当今世界是一项重要的技能。嗯,不管我们想选什么课,我还有些事情需要弄清楚。你什么意思?你是说像上课时间之类的事情吗?因为这是我们第一次可以选选修课,我需要知道怎么注册。我想我们学校的网站上会有注册说明。
Speaker 6:我会告诉你的。你真是太体贴了,尼娜。我觉得那很有必要。我们需要确保一旦我们下定决心就能马上注册。
Speaker 6:在你听到讨论的其余部分之前,你有时间看一下第27到第30题。现在听并回答第27到第30题。
Speaker 3:我们上学期学的课程都挺有意思的。也许我们可以从那些课程中获得一些灵感。你觉得呢?
Speaker 6:嗯,是的。有些课程对我来说很有趣,比如冶金学,尽管有很多术语要记。
Speaker 3:但是网上也有很多关于它的有用信息,这让事情变得容易多了。
Speaker 6:没错。我写论文的时候可以参考很多东西。
Speaker 3:流体力学教授非常有耐心。他解释得非常清楚,所以学生们理解起来没有困难。是的,
Speaker 6:确实如此。我这门课学得很好。你觉得计算机课怎么样?
Speaker 3:我觉得一开始有点无聊。
Speaker 6:你这么觉得吗?我也有同感。要处理很多数字。但谢天谢地,随着课程的进行,它变得有趣多了。
Speaker 3:对。因为后来我们可以把理论和现实生活中的例子联系起来。
Speaker 6:完全正确。另一门我觉得非常实用的课是能源经济学。
Speaker 3:哦,是的。这门课有很多实践性的内容。我们学到的东西将来在工作中可能会派上用场。
Speaker 6:我们应该根据自己的经验和偏好来做决定。是的。不管怎样,我们真的需要抓紧了。我相信我们今天就能得出结论。
Speaker 6:第三部分到此结束。你现在有半分钟时间检查你的答案。
第四部分
Speaker 0:第四部分。你将听到一场面向生物学学生的演讲的一部分,内容是关于海狮的新研究。首先,你有时间看一下第31到第40题。现在仔细听并回答第31到第40题。
Speaker 7:大家好。我今天在这里要向大家介绍我们大学团队正在对生活在西澳大利亚海岸的海狮进行的一项新研究。你可能想知道我们为什么要研究这种动物。嗯,澳大利亚海狮已被确定为濒危物种,所以非常有必要对它们进行计数,弄清楚到底有多少只。直到1892年,由于捕猎,这些动物的数量严重减少。现在捕猎已不再被允许。但今天有一个新的危险。海狮经常在沿海地区觅食,而这些地区恰好有用来捕捉鲨鱼的网。不幸的是,它们往往会意外地被网缠住而淹死。我们想监测这个地区的海狮数量,但我们不确定最好的方法是什么。有几种不同的动物追踪方法,它们的有效性各不相同,并且需要考虑不同的因素。其中最重要的因素之一是成本,但你还需要考虑你选择的方法是否易于使用。你可以选择一种传统方法,比如塑料标签。它们相对容易附着,但只适用于那些比较容易捕捉的动物。你也可以选择更现代的方法,比如GPS追踪,它利用卫星技术全天候传输动物的数据。不过,对于海洋动物来说,一个缺点是它们在海里无法传输信号。你只有在它们上岸时才能获得数据。在偏远地区,某些大型动物必须使用直升机进行追踪。北极熊就是一个很好的例子。追踪的一个重要部分是能够清楚地识别动物。有些动物,比如斑马,可以通过斑纹等标记来识别,而海豚通常身上有独特的疤痕,可以帮助区分它们。海狮没有任何这样的标记,这只是追踪它们的挑战之一。当珀斯的研究人员试图在海狮研究中使用电子标签时,他们发现海狮故意在岩石上摩擦,从而移除了追踪装置。这是研究人员没有预料到的。加利福尼亚州研究美洲海狮的研究人员尝试了一种不同的方法。他们给动物涂上颜料。他们认为这将是一种更好、侵入性更小的识别方法。不幸的是,这种方法效果也不太好,因为海狮每年都会换毛,脱落的皮毛会连同识别标记一起脱落。那么,让我们来看看我们目前的研究。我们有几个想要实现的目标。第一个目标是尝试确定是否可以通过海狮面部的胡须来识别它们。这些胡须比猫的胡须粗得多,所以更容易看到。我们的理论是,这些胡须的图案可能像人类的指纹一样独一无二。如果这确实是事实,那么我们认为这可能是一种有效的识别方法。我们的第二个目标是绘制出海狮胡须图案的示意图,以便我们和其他研究可以将其作为指南。我们使用几种不同的方法来帮助我们完成所有这些工作。我们知道我们需要积累大量的视觉数据。所以首先,我们已经联系了澳大利亚各地的动物园,收集他们那里任何海狮的面部照片。不过,这还不足以实现我们的目标,所以我们还通过邀请公众参与我们的研究来扩大搜索范围。我们希望这能产生数百张我们可以使用的有用图像。
Speaker 0:第四部分到此结束。你现在有一分钟时间检查第四部分的答案。