托福听力题型,老托福听力93篇原文

托福考试2024-10-29 15:59:20嘉佳老师

  正在备考托福的同学们,对于托福考试了解多少呢?托福听力考试分为Conversation和Lecture,那么今天就和出国留学网来看看托福听力考试Lecture介绍。

  托福考试是学术英语考试,检验考生是否具备在国外大学里学习的能力,从听力单项来看,托福听力只考察两类内容,两篇对话主要涉及学生和校内工作人员的交流沟通,四篇讲座主要内容就是课堂教学。托福听力Lecture其实就是浓缩的大学讲课,内容几乎涵盖大学里所能涉及到的所有基础性科目:生命科学,艺术文学,社会科学,自然科学等。

  每篇lecture时长在五分钟左右,后面紧跟六个问题,多数为单选题,也会有多选题,重听题,排序题等。想要攻克lecture我们需要认真思考的问题之一就是:lecture结构特点是什么?换言之,老师最喜欢怎么展开一堂课?作为有过多年学生经历的我们,最了解的莫过于课堂以及老师。回想一下老师讲课一般都是什么流程?我们最熟悉的课堂流程是这样的:开场引入topic ——分论点1:支持性细节——分论点2:支持性细节——分论点3:支持性细节——总结 简而言之,托福听力多数文章都是采用“总分总”的模式展开。需要注意的是分论点数量不确定,最后的“总”(课堂总结部分)有时候会被教授省略,也就是讲完最后一个分论点全文就结束了。

  下面我们结合TPO17 Lecture4分析一下托福听力讲座类的基本结构。

  文本:Ok, now I want to talk about an animal that has a fascinating set of defense mechanisms. And that’s the octopus, one of the unusual creatures that live in the sea. The octopus is prey to many species, including humans, so how does it escape its predators?

  课堂开始教授第一句话开篇点题,今天要讲一种动物以及这种动物是如何逃脱天敌的,接着分论点一:

  文本:Well, let me back up here a second. Anyone ever heard of Proteous? Proteus was a God in Greek mythology who could change form. He could make himself look like a lion or a stone or a tree, anything you wanted, and he could go through a whole series of changes very quickly. Well, the octopus is the real worldversion of Proteus. Just like Proteus, the octopus can go through all kinds of incredible transformations. And it does this in three ways: by changing color, by changing its texture, and by changing its size and shape. 围绕专有名词Proteus展开,重点强调了Proteus具有change form, transform 的能力。

  分论点二:

  文本:For me, the most fascinating transformation is when it changes its color. It’s a normal skin color, the one it generally presents, is either red or brown or even grey, and it ’s speckled with dark spots. But when it wants to blend in with its environment to hide from its enemies, it can take on the color of its immediate surroundings: the ocean floor, a rock, a piece of coral, whatever. Charles?

  Student:Do we know how that works, I mean, how they change colors?

  Professor :Well, we know that the reaction that takes place is not chemical in nature. The color changes are executed by two different kinds of cells in the octopus ’ skin, mainly by color cells on the skin’s surface called chromatophores. Chromatophores consist of tiny sacks filled with color dye. There might be a couple hundred of these color sacks per square millimeter of the octopus ’ skin, and depending on the species, they can come in as many as five different colors. Each one of these sacks is controlled by muscles. If the muscles are relaxed, the sack shrinks, and all you see is a little white point. But if the muscle’s contract, then the sack expands, and you can see the colors. And by expanding different combinations.

  Student: And just with various combinations of those five colors, they can recreate any color in their environment?

  Professor: Well, they can no doubt create a lot with just those five colors, but you are right, maybe they can’t mimic every color around them, so that’s where the second kind of cell comes in. Just below the chromatophores is a layer of cells that reflect light from the environment, and these cells help the octopus create a precise match with the colors that surround them. The colors from the color sacks are supplemented with colors that are reflected from the environment, and that ’s how they are able to mimic colors with such precision. So, that’s how octopus mimic colors. 分论点二讲解how to change color,重点强调了两种细胞,一种叫做chromatophores,这种细胞controlled by muscles. 另外一种细胞能够reflect light.

  分论点三:

  文本:But they don’t just mimic the colors in their environment; they can alos mimic the texture of objects in their environment. They have these little projections on their skin that allow them to resemble various textures. The projections are called papillae. If the octopus wants to have a rough texture, it raises the papillae. If it wants to have a smooth texture, it flattens out the papillae, so it can acquire a smooth texture to blend in with the sandy bottom of the sea. So the octopus has the ability to mimic both the color and the texture of its environment. And it’s truly amazing how well it can blend in with its surroundings. You can easily swim within a few feet of an octopus and never see it. 分论点三讲解how to change texture, 引入专有名词Papillae。

  分论点四:

  文本:Um, now there’s a third way that octopus can transform themselves to blend in with or mimic their environment, and that’s by changing their shape and size, well, at least their apparent size. The muscular system of the octopus enables it to be very flexible to assume all sorts of shapes and postures. So it can contract into the shape of a little round stone, and sit perfectly still on the seafloor. Or it can nestle up in the middle of a plant and take the shape of one of the leaves. Even Proteus would be impressed, I think. 分论点四讲解how to change size and shape, 举了stone 和 leaves的两个例子,文章结束。

  总结来看,这篇lecture结构如下:

  (1)Topic: animal, octopus, escape predators

  (2)Subtopic1: Proteus: change form, transform

  (3)Subtopic2 :color:chromatophores, controlled by muscles

  (4)Subtopic3 :texture:papillae

  (5)Subtopic4:shape&size: eg. stone, leaves

  为什么掌握lecture的结构特点如此重要?这是由lecture的题目设置特点决定的。第一,考察大结构和重点强调内容,不考小细节。 Lecture的结构特点很明确的展示出重点内容的出现位置:开篇点题处,每个段落的主题句(一般是段落的第一句话),课堂总结处。翻译一下就是,这些地方是考点!!!第二,细节题全部顺序出题。换句话说,如果在第一个细节题的四个选项里出现了文章最后才强调的内容,果断排除!

  我们还是以TPO17 L4为例,来看一下lecture的论点和分论点是如何对应考题的。

  第一题主旨大意题,对应文章开头,教授开篇点题处。

  (1)What is the lecture mainly about?

  A:Different kinds of color vision in sea animals.

  B:Differences in appearance between various species of octopus.

  C:Ways that octopuses attract their prey.

  D:Ways that octopuses protect themselves from predators.

  第二题考察Proteus, 对应分论点一。

  (2) Why does the professor first mention Proteus?

  A:To explain how the octopus got its scientific name.

  B:To introduce the octopus’ exceptional abilities.

  C:To point out that the octopus played an important role in Greek mythology.

  D:To provide an example of a mythological character that was part animal and part human.

  第三题考察how to change color,对应分论点二。

  (3)How does an octopus change color to match the colors in its environment? Click on 2 answers

  A:By raising its papillae.

  B:By releasing colored ink.

  C:By reflecting light from its environment.

  D:By contracting the muscles around its chromatophores.

  第四题考察how to change texture部分,对应分论点三。

  (4)What does the professor say about the function of the papillae?

  A:They produce dye in different colors.

  B:They propel the octopus through the water.

  C:They change the texture of the octopus’ skin.

  D:They help the octopus contract into a smaller shape.

  第五题考察how to change size and shape 部分,对应分论点四。

  (5)What two examples does the professor mention to describe the octopus’ ability to change its shape? Click on 2 answers

  A:A small round stone

  B: The leaves of a plant

  C:A cloud of ink.

  D:A piece of coral.

  第六题重听题。重听部分听到的是例子细节。老师上课为什么会举例子呢?举例子的目的当然是帮助同学们理解某个知识点,所以该题的答案是 illustrate a point 阐明观点。

  (6)Why does the professor say this

  A:To point out an error.

  B:To illustrate a point.

  C:To propose an explanation.

  D:To correct a misunderstanding.

  总结一下,托福听力lecture结构的大原则就是总分总,在这个大原则的基础上,每位老师讲课有小差异,每篇lecture有自己的小特点,例如有的教授喜欢举例子,有的教授喜欢讲理论,还有的教授喜欢做实验,lecture结构不同考点出现的位置也就不一样。推荐听力TPO11 L1、TPO19 L3、TPO20 L4、TPO29 L1给各位TOEFLer课下练习,加深对托福听力lecture结构特点的理解。

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