托福听力(1)
托福听力tpo50 lecture1、2、3、4 原文+题目+答案+译文
托福听力tpo50 lecture1、2、3、4 原文+题目+答案+译文Lecture1 (1)原文 (1)题目 (4)答案 (6)译文 (6)Lecture2 (8)原文 (8)题目 (10)答案 (12)译文 (12)Lecture3 (14)原文 (14)题目 (16)答案 (18)译文 (18)Lecture4 (20)原文 (20)题目 (22)答案 (24)译文 (24)Lecture1原文NARRATOR: Listen to part of a lecture in an ancient history class.FEMALE PROFESSOR: OK, last time we were discussing trade and commerce during the Bronze Age … And I said a little over 3,000 years ago there was quite a lively trade among the countries along the Mediterranean Sea—people were making objects out of bronze, and they were using bronze tools to make other goods, and they developed trade networks to trade these goods with other countries around the Mediterranean … One of the things they traded was glass …And recently there was an archeological excavation in Egypt—on the Nile River, around where it enters the Mediterranean Sea—where they discovered an ancient glass factory. Robert?MALE STUDENT: I thought our textbook said that the Egyptians imported their glass from other countries.FEMALE PROFESSOR: Well, until now that's what the evidence seemed to suggest. I mean, we had some evidence that suggested that the Egyptians were making glass objects, uh, but not glass.MALE STUDENT: OK, am-am I missing something? They're making glass, but they're not making glass.FEMALE PROFESSOR: I said they were making glass objects, right? You see, it was previously thought that they weren't actually making the raw glass itself, that they were importing unfinished glass from Mesopotamia—um, which today is a region consisting of Iraq, and parts of Syria, Turkey, and Iran—and simply reworking it. Most archeologists believed that the glass factories were in Mesopotamia because that's where the oldest known glass remains come from. You see, there were two stages of glassmaking: the primary production stage, where they made disks of raw glass… Uh, an- and then there was the secondary stage, where they melted the raw glass, the glass disks, and created decorative objects or whatever.And from this new Egyptian site we've learned that the primary production stage had several steps. First, they took quartz—a colorless, transparent mineral—and crushed it. Then they took that crushed quartz and mixed it with plant ash; uh, “plant ash” is just what it soundslike—the ash that's left after you've burned plant material. They slowly heated this mixture, at a relatively low temperature, in small vessels, um containers, like jars, made out of clay. Uh, and that yielded a kind of glassy material…They took this glassy material and ground it up into a powder, and then they used metallic dye to color it… After that, they poured the colored powder out into disk-shaped molds and heated it up to very high temperatures, so that it melted. After it cooled, they'd break the molds, and inside…there were the glass disks. These disks were shipped off to other sites within Egypt and places around the Mediterranean. Then, in the secondary phase, the disks were reheated and shaped into decorative objects. Susan?FEMALE STUDENT: So what kind of objects were people making back then? FEMALE PROFESSOR: Well, the most common objects we’ve found—mostly in Egypt and Mesopotamia—uh, the most common objects were beads; one thing Egyptians were very, very good at was imitating precious stones; they created some beads that looked so much like emeralds and pearls that it was very difficult to distinguish them from the real thing. Uh, and-and also beautiful vessels, uh, with narrow necks; they were probably really valuable, so they wouldn't have been used to hold cooking oil or common food items; they were most likely used for expensive liquids like perfume. Now the glass made at this factory was mostly red; to get this red color, they used copper; in a sophisticated process. Of course, any kind of glass was very valuable, so these red bottles would only have been owned by wealthy people. In fact, because it was so difficult to make, and sort of mysterious and complicated, it was probably a product produced for the royal family, and they probably used glass to show their power. Also, beautiful, expensive objects make great gifts if you're looking to establish or strengthen political alliances…and it's quite possible that ancient Egyptians were actually exporting glass, not just making it or importing it. The trade with Mesopotamia was probably a friendly, mutual trade…because, uh, Mesopotamian glass was usually white or yellow, so Mesopotamians might have said something like, “We'll give you two white disks for two red disks.” There’s no proof ofthat, uh—at least not yet…题目1.What is the lecture mainly about?A. New information about glass production and use in ancient EgyptB. Whether Egyptians or Mesopotamians were the first to invent glassC. Differences between Egyptian glass and other kinds of glassD. Reasons why ancient Egyptians imported glass from other countries2.What is the importance of the archaeological evidence recently found in Egypt?A. It supports the theory that ancient Egyptians imported glass from Mesopotamia.B. It proves that ancient Egyptians made glass objects prior to the Bronze Age.C. It provides the first evidence that glassmaking in the Bronze Age required two different stages.D. It shows that ancient Egyptians were producing raw glass.3.The professor describes a process for making glass disks. Summarize the process by putting the steps in the correct order. [Click on a sentence. Then drag it to the space where it belongs. The last one is done for you.]A.Glass-like material is ground up and dyed blue or red.B.Powdered material is heated at very high temperatures.C.Crushed quartz and plant ash are heated at low temperatures.D.Containers are broken to remove glass disks.4.Based on the lecture, what are two kinds of glass objects that were valued in ancient Egypt and Mesopotamia? [Click on 2 answers.]A. BeadsB. Cooking utensilsC. ContainersD. Windows5.According to the professor, what are two reasons why ancient Egyptians exported glass? [Click on 2 answers.]A. To build relationships with foreign leadersB. To hold cooking oil that was sold in other countriesC. To get bronze tools from other countriesD. To acquire colors of glass not made in Egypt6.Why does the professor say this:Robert: Ok. Am……Am I missing something? They are making glass but they are not making glass?Professor: I said they were making glass objects, right?A. To emphasize that glass objects were only made in ancient EgyptB. To find out what the student does not understandC. To indicate that there was no contradiction in her previous statementD. To correct what she said in her previous statement答案A D CABD AC AD C译文旁白：请听一个古代历史课上的讲座片段。
托福听力tpo40 lecture1、2、3、4 原文+题目+答案+译文
托福听力tpo40lecture1、2、3、4原文+题目+答案+译文Lecture1 (2)原文 (2)题目 (4)答案 (5)译文 (6)Lecture2 (7)原文 (7)题目 (9)答案 (11)译文 (11)Lecture3 (13)原文 (13)题目 (16)答案 (18)译文 (18)Lecture4 (20)原文 (20)题目 (22)答案 (24)译文 (24)Lecture1原文NARRATOR:Listen to part of a lecture in an art history class.MALE PROFESSOR:Last class I passed out your assignment for your first paper,and today I want to spend some time going over it.Mm…most people never take any art history until they get to college,so many of you have probably never written an art history paper before.I gave you a list of appropriate works of art for you to write about.So your next step in this process needs to be to go look at the work you've selected as your topic.And bring a pencil and a notepad with you,because I don't mean you should just drop by at the museum and glance at it so you can say you've seen it in real life.You need to go and sit in front of the work and really look at it—carefully and slowly.And keep careful notes about what you see—you’ll need them for the kind of art history paper you're going to be writing…it's what we call a formal analysis.A formal analysis of a work of art,any kind of art,is based on its formal qualities, which means qualities related to the form—things like color…texture…line…shapes…proportion…and composition.Probably the closest thing to a formal analysis you might have written is for an English class.If you've…say…written an analysis of a poem,you've used the same skills—you've given an analysis of the poem by describing and analyzing its form and meter.A formal analysis paper in art history is very similar.Now,before you begin writing your formal analysis,you'll want to start with a summary of the overall appearance of the work—a brief description of what you see. Are there figures—people?What are they doing?Or is it a landscape…or an abstract representation of something?Tell what the subject is,and what aspects are emphasized in the painting.This will give your reader an overview of what the work looks like before you analyze it.The next part of your paper—the actual formal analysis—will be the longest and most important section of your paper,where you describe and analyze individual design elements.For this portion of the paper,you're going to rely on the notes you took at the museum,because you should be able to describe in detail the design elements the artist uses,and how they are used.For example,does the artist use harsh lines or soft lines—are the colors bright or muted?Focus on the design elements that you feel are most strongly represented in that particular work of art. And if you don't know where to begin,take note of where your eye goes first.Then describe things in the order in which your eye moves around the work.This will help you understand how one part relates to another—the interaction between the different parts of the work.OK,this kind of analysis should occur throughout the main portion of the paper.In the last section of your paper—and this goes beyond formal analysis—you comment on the significance of what you have seen.What details of the work convey meaning?Some significant details will not be apparent to you right away,but if you look long enough,you realize how important they are for your interpretation of the work.Many years ago,I was writing a formal analysis of a painting of a little boy.In the painting,a little boy was standing in his nursery,and he was holding a toy bird in his hand,and there were more toys around him in the background of the painting. Because of the bird he was holding,I assumed at first that the painting was about the innocence of children.But as I looked at the painting longer,I realized that the boy's eyes looked sad even though there was no discernable expression on his face.And then it dawned on me that,even though he was surrounded by toys,he was all alone in his nursery.The boy's eyes were a significant detail in the painting,that I didn't notice at first.题目1.What point does the professor make about the writing of a formal analysis in art history?A.Its objective is to identify common features of several works of art.B.Its most important part is the explanation of an artwork's significance.C.Several styles of writing a formal analysis are used by art historians.D.A particular approach is required to present Information about an artwork.2.According to the professor,what will students need to do before writing the art history paper?A.Look at examples of formal analysis in textbooksB.Take notes on the artwork they will write aboutC.Go to different museums before selecting a topic for the paperD.Study the historical context of the artwork they will write about3.Why does the professor mention an English class?A.To explain the difference between visual language and written languageB.To explain that students need good writing skills for their assignmentC.To point out similarities between a poetry paper and the students'assignmentD.To point out that many art historians become writers4.What does the professor recommend as a way to understand the relationship between different parts of an artwork?A.Looking for lines that connect different parts of the workB.Examining the artwork from several different anglesC.Looking for similar colors the artist used throughout the workD.Determining how the viewer's eyes move around the work5.Why does the professor talk about his own experience analyzing the painting of a little boy?A.To point out a common misconception about formal analysisB.To stress the importance of looking at an artwork thoroughlyC.To show why a formal analysis should not emphasize small detailsD.To provide an example of an artwork that is easy to analyze6.The professor describes three sections the art history paper should contain.Place them in the order in which they should appear in the paper.Click on a phrase.Then drag it to the space where it belongs.A.Analysis of the design elements the artist usesB.Discussion of the meaning of the artworkC.Summary of the appearance of the artwork答案D B C D B CAB译文旁白：下面听一段艺术史课程的片段。
托福TPO01听力答案详细解析
以下内容版权归粉叶猪所有，转载请注明TPO 01 –Listening PartSection 1Conversation（场景归类——图书馆）NarratorListen to part of a conversation between astudent and a librarian.StudentHi, um…, I really hope you canhelp me.LibrarianThat‟s why I‟m here. What can I do for you?Student（1）I‟m supposed to do a literature review formy psychology course, but um… havinga hard time finding articles. I don‟t even know where to start looking.LibrarianYou said this is for your psychologycourse, right? So your focus is on …StudentDream Interpretation.LibrarianWell, you have a focus, so that‟salready a good start. Hmmm… well, there‟re a few things… oh,wait… Have you checked to see if your professor put any materialfor you to look at on reserve?StudentAha, that‟s one thing I did know to do. I just copied an article, but I still need three more on my topicfrom three different journals.LibrarianLet‟s get you going onlooking for those then. We have printed versions oftwenty psychology journals in the Reference Section. These are the onespublished within the last year. Then I think about it…there‟s a journal named Sleep and Dream.StudentOh, yeah, the article I just copied is fromthat journal, so I‟vegot to look at other sources.Librarian（2）Ok, actually, most of our materials are available electronicallynow. You can accesspsychology databases or electronic journals and articles through the library‟s computers,and if you want to search by title with the word …dream‟ for example, just type it in and all the articles with “dream” in the title will come up onthe screen.StudentCool, that‟s great! Too bad I cannotdo this from home.Librarian（5）But you can. All of the library‟s databasesand electronic sources can be accessed through any computer connected to theuniversity network.StudentReall y?!I can‟t believe I didn’t know that. It still sounds like it‟s goingto take a while though, you know, going through allof that information, all of those sources.LibrarianMaybe, but you already narrow your searchdown to articles on Dream Interpretation, so it shouldn‟t betoo bad. （3）And you probably notice that there‟s an abstract or summary at the top ofthefirst page of the article you copied. When you go into the databases andelectronic sources, you have the option to display the abstracts on the computer screen, skimmingthose to decide whether or not you want to read thewhole article should cut down some time.StudentRight, abstracts! They‟lldefinitely make the project more durable. （4）I guess Ishould try out the electronic search while I‟m stillhere then, you kno w, just in case.LibrarianSure, er… that computer‟s free over there, and I‟ll be here tillfive this afternoon.StudentThanks, I feel a lot better about this assignment now.词汇：journal n. 日报；杂志version n. 版本database n. 数据库abstract n. 摘要skim v. 浏览assignment n. 任务；作业durable adj. 耐用的；持久的题目：1Why does the student go to see the librarian？解析：注意but后面的内容，他是要找一些资料为了做a literature review，同义替换为 a class paper答案：To ask about how to look forresources for a class paper2What does the librarian say about theavailability of journals and articles？解析：细节题，定位journals and articles，原文中说可以从the library‟scomputers获得，同义替换为in an electronic format答案：Most of them are accessible inan electronic format3 What does the librarian suggest the studentshould do to save time？解析：细节题，题目中save time同义替换原文中cut down some time，原文中skimming these （summaries and abstracts）同义替换为read the summaries答案：Read the summaries of the articlesfirst4What can be inferred about why the womandecides to use the computer in the library？解析：推断题，原文中她说just in case，可推断她可能需要管理员的帮助。
网上托福听力真题
网上托福听力真题【听力材料】：(Text 1)W: What’s new with you,Jack?M:Well,I met a really nice woman.We’ve been going out for three months and things look good now.(Text 2)M: When did you first find the door broken and things missing?W:After I got up,around 5:20.Then I called the police station.(Text 3)W: Pass me the flour,please.M:Which tin is it in?W:The one at the end of the shelf.It’s slightly smaller than the others.M:Oh,right.(Text 4)W:Do you know why George hasn’t come ye t?M:Yes.He was planning to come,but his wife’s father fell downsome stairs and they had to take him to a hospital.W:I’m sorry to hear that.(Text 5)W:Hi,Tony.How did your experiment go yesterday?M: Well,it wasn’t as easy as I had thought.I have to con tinue doing it tonight.(Text 6)M:Is that Ann?W:Yes.M:This is Mike.How are things with you?W:Oh,very well,but I’m very busy.M:Busy? But you’ve finished all your exams?W:Yes,but I have to help my little sister with her foreign language.M:How about coming out with me this evening?There’s a new film on.W:I’m afraid I can’t.A friend of mine is coming from the south and I have to go to the station to meet him.M:What a pity!How about the weekend then?W:No,I’ve arranged to go to an art exhi bition with my parents.M:What about next week sometime?W:Maybe.(Text 7)W:I hear there will be a football competition between all senior schools next month.Is that so?M:That’s true.W:Would you please go into some more details?M:Well,the competition will be held in our school and it will begin on August 11.The competition will last a whole week.W:Anything else?M:Yes,both the girls and boys competition will be held at the same time.The girls competition will be held in the morning and the boys competition will be held in the afternoon.W:Yes? Sounds exciting.M:We are both members of our school football team.We should be ready for it.W:Of course.It’s a long time since we had the last football competition last time.I’m really looking forward to anothercompetition.M:Me,too.(Text 8)W: Excuse me.I am from STM.We are carrying out a survey on the traffic in our city.Do you mind if I ask you some questions?M:No,not at all.Go ahead.W:Good,thanks.What do you do,sir?M:I am a teacher.I teach children French.W:Great.Do you live far from the school? I mean,how do you usually go to work?M:Well,mostly by car.But once in a while,I prefer to ride my bike.You know,I live quite far from the school,about 20 miles.And I have to spend about an hour riding to school.But it only takes me less than a quarter of an hour to drive my car,unless the traffic is very bad.W:I see.Does this happen often? I mean the bad traffic.M:Yes,sure! I often get stuck on the way,and the problem’s getting worse and worse.W:That’s all of my questions.Thank you very much.M:You are welcome.(Text 9)M: Customer service.Andney Grant speaking.How may I help you?W:I can’t believe this is happening.I called and ordered a 32?inch bag last Friday.But today I found that you sent me a 24?inch one.I was planning to use that bag during our vacation in Mexico,but it doesn’t seem possible any more because we will take off on Saturday.It’s only two days away.What am I supposed to do?M:I’m really sorry,madam. I’ll check right away.Would you please tell me your order number?W:It’s CE2938.M:Just a minute.I do apologize,madam.There did seem to be a mistake.I’ll have the corre ct size bag sent to you by overnight mail right away.It will arrive in time for your Saturday trip.Again I apologize for any inconvenience caused by our mistake.I promise it won’t happen again.W:OK.Well,thank you.M:Thank you,madam,for choosing Linch mail.I hope you willhave a wonderful vacation.(Text 10)I wasn’t too fond of the lecture classes of 400 students in my general course.Halfway through my second term when I was considering whether or not to come back in the fall,I went on the Internet and came across Americorp.Then I joined in an organization,and that’s what I did last school year.I worked on making roads,building a house,serving as a teacher’s assistant and working as a camp officer in several projects in South Carolina and Florida.It’s been a great experience,and I’ve almost learned more than what I could have in college since I didn’t really want to be at that school and wasn’t interested in my major anyway,I thought this was better for me.After 1,700 hours of service I received 4,750 dollars.I can use that to pay off the money I borrowed from the bank or for what is needed when I go back to school this fall at Columbus State in Ohio.Classes are smaller there and I’ll be majoring in German education.After working with the kids,now I know,I want to be a teacher.一、听力第一节(共5小题，每小题1分)听下面5段对话。
托福听力tpo51 lecture1、2、3、4 原文+题目+答案+译文
托福听力tpo51lecture1、2、3、4原文+题目+答案+译文Lecture1 (1)原文 (1)题目 (3)答案 (5)译文 (6)Lecture2 (7)原文 (7)题目 (10)答案 (12)译文 (12)Lecture3 (14)原文 (14)题目 (16)答案 (18)译文 (18)Lecture4 (20)原文 (20)题目 (22)答案 (24)译文 (24)Lecture1原文NARRATOR:Listen to part of a lecture in a botany class.FEMALE PROFESSOR:So,continuing with crop domestication,and corn—or,um, maize,as it's often called.Obviously it's one of the world's most important cropstoday.It's such a big part of the diet in so many countries,and it's got so many different uses,that it's hard to imagine a world without it.But because it doesn't grow naturally,without human cultivation,and because there's no obvious wild relative of maize…uh,well,for the longest time,researchers weren’t able to find any clear link between maize and other living plants.And that's made it hard for them to trace the history of maize.Now,scientific theories about the origins of maize first started coming out in the 1930s.One involved a plant called teosinte.Teosinte is a tall grass that grows wild in certain parts of Mexico and Guatemala.When researchers first started looking at wild teosinte plants,they thought there was a chance that the two plants—um, maize and teosinte—were related.The young wild teosinte plant looks a lot like the corn plant,and the plants continue to resemble each other—at least superficially—even when they're developed.But when the scientists examined the fruits of the two plants,it was a different story. When you look at ripe corn,you see row upon row of juicy kernels…um,all those tiny little yellow squares that people eat.Fully grown teosinte,on the other hand, has a skinny stalk that holds only a dozen or so kernels behind a hard,um,almost stonelike casing.In fact,based on the appearance of its fruit,teosinte was initially considered to be a closer relative to rice than to maize.But there was one geneticist,named George Beadle,who didn't give up so easily on the idea that teosinte might be…well…the“parent”of corn.While still a student in the1930s,Beadle actually found that the two plants had very similar chromosomes—very similar genetic information.In fact,he was even able to make fertile hybrids between the two plants.In hybridization,you remember,the genes of two species of plants are mixed to produce a new,third plant—a hybrid.And if this offspring—this hybrid—is fertile,then that suggests that the two species are closely related genetically.This new,hybrid plant looked like an intermediate,right between maize and teosinte.So,Beadle concluded that maize must've been developed over many years,uh,that it is a domesticated form of teosinte.Many experts in thescientific community,however,remained unconvinced by his conclusions.They believed that,with so many apparent differences between the two plants,it would have been unlikely that ancient—that prehistoric peoples could’ve domesticated maize from teosinte.I mean,when you think about it,these people lived in small groups,and they had to be on the move constantly as the seasons changed.So for them to selectively breed,to have the patience to be able to pick out just the right plants…and gradually—over generations—separate out the durable,nutritious maize plant from the brittle teosinte that easily broke apart…it's a pretty impressive feat,and you can easily see why so many experts would have been skeptical.But,as it turns out,Beadle found even more evidence for his theory when he continued his experiments,producing new hybrids,to investigate the genetic relationship between teosinte and maize.Through these successive experiments,he calculated that only about five specific genes were responsible for the main differences between teosinte and maize—the plants were otherwise surprisingly similar genetically.And more recently,botanists have used modern DNA testing to scan plant samples collected from throughout the Western Hemisphere.This has allowed them to pinpoint where the domestication of maize most likely took place—and their research took them to a particular river valley in southern Mexico.They've also been able to estimate that the domestication of maize most likely occurred about9,000 years ago.And subsequent archaeological digs have confirmed this estimate.In one site,archaeologists uncovered a set of tools that were nearly9,000years old.And these tools were covered with a dusty residue…a residue of maize,as it turns out…thus making them the oldest physical evidence of maize that we've found so far.题目1.What is the lecture mainly about?A.A research study that compares wild and domesticated plantsB.Problems with a commonly held hypothesis about the origin of teosinteC.Reasons why wild plants are usually unsuitable for agricultureD.The process used to identify the ancestor of a modern crop2.What evidence seemed to indicate that maize and teosinte are not related?A.Young teosinte plants do not physically resemble young maize plants.B.Preliminary DNA evidence indicated that teosinte was related to rice.C.Maize and teosinte usually grow in significantly different climates.D.Maize and teosinte have very different types of kernels.3.Why does the professor discuss hybrids?A.To explain how a geneticist confirmed that maize was widely grown9,000years agoB.To indicate the earliest method used by geneticists to identify plant originsC.To explain a method used to demonstrate a link between two plant speciesD.To describe how geneticists distinguish between wild plants and domesticated plants4.What was most researchers'initial view of George Beadle's theory about teosinte?A.They accepted it but questioned the evidence cited.B.They rejected it because of conflicting archaeological evidence.C.They questioned it because it implies that ancient farmers were sophisticatedplant breeders.D.They questioned it because genetic research was viewed with skepticism at that time.5.What did Beadle conclude about maize and teosinte?A.Both plants lack particular genes that are common in most domesticated plants.B.Both plants have particular genes that enable them to adapt to varying climates.C.Only a small number of genes are responsible for the differences between the two plants.D.The genetic composition of both plants is very similar to that of rice.6.According to the professor,why was the discovery of stone tools important?A.It proved that teosinte was simultaneously domesticated in multiple locations.B.It helped to confirm the period in which maize was first domesticated.C.It suggested that maize required farming techniques that were more complex than experts had previously assumed.D.It provided evidence that maize plants were used for more purposes than experts had previously assumed.答案D D C C C B译文旁白：请听一段植物学讲座的节选。
托福听力tpo67 lecture1、2、3 原文+题目+答案+译文
托福听力tpo67lecture1、2、3原文+题目+答案+译文Lecture1 (2)原文 (2)题目 (4)答案 (6)译文 (6)Lecture2 (7)原文 (7)题目 (10)答案 (12)译文 (12)Lecture3 (13)原文 (14)题目 (16)答案 (18)译文 (18)Lecture1原文Professor:Now we've said that animal behavior patterns involve an interplay between an animal and its environment.In particular,behavior patterns can change as an animal becomes adapted to its environment.We can see the results of this in the way that animals have developed different types of feeding behavior.Animals are generally classified as a generalist feeders and specialist feeders.Now,um,these terms are used in a variety of ways.At times,they're used to refer to an animal's range of habitats.I've also seen them used to describe the number of foraging techniques that are used by an individual or species.Um,but for our purposes,we're going to use them to refer to the range of food items that are eaten by a species.So a generalist feeder is a species that eats a wide variety of foods during its lifetime.And a specialist is a species that feeds on a highly restricted number of foods.A good example of a generalist would be a rat.Rats are notorious for eating just about anything that's available,whether it's a plant or an animal.At the other end of the spectrum,we have the koala which eats only the leaves of eucalyptus trees.Okay,now there are advantages to each.For a generalist,If1type of food isn't around,it can feed on another that's more abundant.On the other hand,the advantage of being a specialist is that the animal is well adapted to its food.You could say that specialists are feeding masters,their consumption,even their digestive system is just so finely tuned.For instance,take the koala.The eucalyptus leaves that it feeds on,don't contain much protein.What's more,the leaves contain compounds that are poisonous to most species?But the koalas digestive system has adapted to handle this.It's liver deactivates,the poisonous compounds,and its digestive system is designed to extract the maximum amount of nutrients from the leaves.So it's not a question of which strategy is better.The real question is,what determines how selective animal species are in what they eat?Well,the answer maylie in a concept called optimal foraging.The idea is that natural selection favors animals whose feeding behavior has the lowest cost to benefit ratio.That is you want to get the best healthiest food you can.And you want to do it as quickly as possible. And as easily as possible.Now,in a natural environment,no animal forage in an absolutely optimal manner. But,well,I read some research on a little rat called the kangaroo rat,which lives in deserts in North America.The kangaroo rat is a generalist which eats plant matter like seeds and fruit.It lives in deep burrows which provide protection from the desert heat and from predators like hawks or snakes.And it goes foraging at night for food.For plant matter,under the protection of darkness,even though it's a generalist.If the only thing available is seed,if a choice of seeds is available to it,it picks up seeds that provide more energy than those it leaves behind.And it carries them back to its burrow.Once it's there,it might eat only the richest seeds from the ones that brought back.So it selects seeds outside in a way that lets it spend as little time as possible foraging in that risky environment,and then sorts out its food later when it's safely in its burrow.Oh,yes,Kenneth.You have a question?Male student:But what about the koala?It gets by uh,by being even more selective, you'd think you would be really risky to rely completely on eucalyptus leaves. Wouldn't it be better to diversify like the kangaroo rat,and eat,at least one or two other things?Professor:Well,what do you think the koala would say?What do I gain by being so selective?In terms of optimal foraging,it's clear that eucalyptus trees provide an abundant source of food.Other animals can't eat the leaves and think of how little energy the koala uses.It spends only about3hours each day eating to get the energy it needs.So being a specialist allows it to get the nutrients it needs with minimal expenditure of energy.题目1.What is the lecture mainly about?A.The reasons why some animals eat only plantsB.The advantages of two different feeding adaptationsC.The variety of foods that certain animals can eatD.The relationship between two animals that share a habitat2.What definition of the term“generalist”does the professor use in the lecture?A.An animal species that eats a wide variety of foodsB.An animal species that lives in a range of different habitatsC.An animal species that uses several techniques to forage for foodD.An animal species that forages at several different times of the day3.What points does the professor make about the koala’s specialist feeding habits? [Click on2answers.]A.It obtains all the food it needs in relatively little time.B.It requires large amounts of protein in its diet.C.It can eat leaves that are poisonous to other animals.D.It spends most of its time eating.4.What does the professor imply about the kangaroo rat?A.It will take more risks when foraging for high-energy food.B.It is one of the most selective feeders in North America.C.Its competitors often eat its food supply.D.It is selective when choosing what food it eats.5.How does the professor organize the information in the lecture?A.By contrasting an old theory with a new theoryB.By defining important terms and then giving examples of themC.By describing the similarities between two animalsD.By describing a problem and then suggesting some solutions6.Why does the professor say this:Male student:But what about the koala?It gets by uh,by being even more selective, you'd think you would be really risky to rely completely on eucalyptus leaves. Wouldn't it be better to diversify like the kangaroo rat,and eat,at least one or two other things?Professor:Well,what do you think the koala would say?What do I gain by being so selective?In terms of optimal foraging,it's clear that eucalyptus trees provide an abundant source of food.Other animals can't eat the leaves and think of how little energy the koala uses.A.To express agreement that the koala should eat a greater variety of foodB.To indicate that the koala’s behavior does not illustrate optimal foragingC.To remind the man of the characteristics of selective feedersD.To encourage the man to consider the koala’s feeding behavior differently答案B A ACD B D译文我们已经说过动物的行为模式涉及到动物和它的环境之间的相互作用。
新托福考试听力试题一2016年
新托福考试听力试题一2016年(总分：34.00，做题时间：120分钟)一、Meteorology(总题数：2，分数：11.00)Leture 1~6: Listen to part of a lecture in a meteorology class.Leture 1~6: Listen to part of a lecture in a meteorology class.（分数：6.00）(1).What aspect of tornadoes does the professor mainly discuss? （分数：1.00）A.What to do if one approachesB.The Fujita rating scale numbersC.Myths people have about themD.Their formation and strength √解析：Listen to part of a lecture in a meteorology c lass. Professor : I guess it’s no big surprise to those of you from the area that tornadoes are one of our biggest problems. In fact, we have a special center for tornado studies here in our department. Today, I’ll get you up to speed on tornado basics. Anyone interested in more advanced studies has to be at least a third-year student. Okay, so what is a tornado, and how can we classify them? First, almost tornadoes are associated with thunderstorms. I’m not talking about your little storm on a summer after noon but whole lines of thunderstorms, the kinds that bring torrential rain and massive bolts of lightning. Tornadoes can also occur during a tropical storm or hurricane, but most come from thunderstorms. Tornadoes are spawned from the fast, rotating column of rising air inside the thunderstorm. When warm, moist air hits an east-moving cold front, a line of thunderstorms can form. Hot, humid air is pushed down by the cold, dry air on top, so it’s like a layer of cold air over warm air. A change in wind direction and an increase in wind speed cause an, uh, spinning effect. This pushes a column of warm air into the air, causing the thunderstorm to develop. Inside a thunderstorm, the air can rise as fast as, uh, 150 miles per hour. We call this an updraft. This updraft rotates very fast, and from it, tornadoes spin off toward the ground. Now the conditions are not always right for tornadoes, and, in different parts of America, they can occur at, well, different times. Like, in the South they happen mostly in the spring. But in the North they come mostly in the summer. But don’t be fooled into thinking any time or place is immune to tornadoes. They have been recorded in every state on the mainland and can happen at any time with the right conditions. We measure tornadoes on what is called the Fujita scale. Let me spell that for you …F-U-J-I-T-A, Fujita. The weakest ones are classified as F0 on the scale. The big monsters are called F5, and, if you ever see one, you’ll remember it for the rest of your life.I saw on e twenty years ago… It’s still the most vivid memory of my life. Over a mile wide, destroying everything in its path. We estimated that its winds were at least 300 miles per hour. Now, not every tornado gets that big, and, in fact, only about two percent can be called F5. Almost 70 percent of tornadoes are on the weak side, lasting less than ten minutes and causing very little damage or deaths. About 30 percent can be called strong and many last about twenty minutes, cause more damage and deaths, with winds between 100 and 200 miles per hour. The most violent ones, the F4or F5, account for almost 70 percent of all tornado deaths. Some have lasted more than an hour and have traversed an entire and well into another before dispersing. Why they disperse so sudd enly is still one of the things we’re working on. Much of our work is related to understanding the mechanics of how they work and also in developing more early warning systems. It is true, without a doubt, from both mine and many others’ personal experienc es, that more warning time saves more lives. People who have time to get to shelter usually survive tornadoes. Most deaths are caused by flying debris striking people. Some people have been sucked up and carried for miles, but this is rare. Underground is the safest place. If you can’t get underground, get inside any structures get destroyed more easily and cause more flying objects in the form of wood splinters.Now, there are a lot of, well, myths associated with tornadoes. One of the most common is that they don’t go near water or mountains. That’s nonsense. We’ve recorded them everywhere, in all kinds of terrain, and even in the desert and over water. Waterspouts are what we call tornadoes over the water. They can kill, too. Another myth is that you should open the windows of your house if a tornado approaches. This is supposed to equalize the pressure so that your house doesn’t get destroyed. That’s completely untrue. A tornado’s winds are what destroy a house. It has nothing to do with difference in air pressure. You’re better off spending your time getting to shelter than worrying about your windows. Always look for the warning signs. A dark, cloudy day with warm, humid air and a line of thunderstorms is a sure bet for tornadoes. Listen to the radio, an d watch TV for warnings. We’ve got radar that can find them very easily when they form. Be prepared, and be safe. 请听一段气象学课堂讲座。
小托福toefl primary笔试1级内容
小托福toefl primary笔试1级内容小托福（TOEFL Primary）笔试1级内容小托福（TOEFL Primary）是由美国教育测验服务中心（ETS）推出的一种针对8-11岁儿童的英语能力测试。
TOEFL Primary笔试1级是其中的最低级别，旨在评估学生在英语听、说、读、写方面的基本能力。
本文将详细介绍小托福笔试1级的内容。
TOEFL Primary笔试1级主要包括听力、口语、阅读和写作四个部分。
下面将逐一介绍每个部分的内容要求。
听力部分（Listening）TOEFL Primary笔试1级的听力部分主要考察学生对于简单英语对话和问题的理解能力。
学生需要听力理解短对话、指令和问题，并根据听到的内容进行选择、补全信息或回答问题。
听力材料主要以日常生活中的场景为背景，如购物、问路、问候等。
口语部分（Speaking）TOEFL Primary笔试1级的口语部分要求学生通过听力材料回答问题或描述图片。
学生需要用简短的句子回答问题或描述图片中的内容，以展示自己的口语表达能力。
题目内容主要涉及学生的日常生活和身边的事物。
阅读部分（Reading）TOEFL Primary笔试1级的阅读部分主要考察学生对于简单英语句子和短文的阅读理解能力。
学生需要阅读短文或问题，并根据阅读内容选择正确的答案或填写相关信息。
阅读材料主要围绕日常生活、学校和家庭等话题展开。
写作部分（Writing）TOEFL Primary笔试1级的写作部分要求学生根据给定的题目写出简单的句子或短文。
题目内容可能要求学生写出对话、补充句子或写一篇简短的短文。
学生需要展示自己的基本写作能力，如正确使用英语语法、词汇和句子结构。
除了以上四个部分的内容要求，TOEFL Primary笔试1级还注重对学生英语能力的综合评价。
考试中会根据学生的答题情况，给出相应的得分和评价。
整个笔试的时间约为1小时，学生需要在规定的时间内完成所有的题目。
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托福听力(1)
托福听力之"修辞艺术"--调色"话"板的点睛笔
邱政政
邱政政上海新东方学校综合英语培训部主任。
英语听力、口语、电影教学专家，TOEFL 听力、电影听说主讲，首创"M7齐步走英语听说教学法"。
在托福听力之"修辞艺术"(上篇)中，我着重给大家介绍了夸张(Hyperbole)和明喻(Simile)，今天我们来着讨一下暗喻(Metaphor)和Irony(反语)：
Metaphor(暗喻)
试比较以下两种TOEFL听力表达方式：
1)He is very nice.(他人很好。
)
2)He really has a heart of gold.(他有一颗金子般的心。
)
很明显，第二种表达方式比第一种更加栩栩如生。
因为第二种使用了Metaphor(隐喻)的修辞手法。
顾名思义，Metaphor(隐喻)也是一种比喻，但不同于Simile(明喻)的是：Metaphor(隐喻)因为不借助比喻词的帮助而更显精练，其典型形式是A is B. Simile(明喻)的修辞手法在TOEFL听力中的运用可谓炉火纯青。
比如：(划线部分为明喻之处)
1) A good book is a good friend. (好书是益友。
)
2) He has a voice of gold. (他有个金嗓子。
)
3) Experience is the best teacher.(经验是的老师。
)
4) She has a photographic memory for detail.(她对细节有照相机般的记忆力。
)
当然，除了TOEFL听力，Metaphor(隐喻)的修辞手法在英语语言文学中的经典范例不胜枚举：
1)All the world's a stage, and all the men and women merely players. (William Shakespeare)(整个世界是座舞台，男男女女，演员而已。
)
2)Education is not the filling of a pail, but the lighting of a fire. (William
B. Yeats)(教育不是注满一桶水，而是点燃一把火。
)
3)He has the microwave smile that warms another person without heat. (Time, October 29, 1979)(他有一种微波微笑，能不加热而使别人温暖。
)
【。