2022年托福听力对话讲座5大类必须记住信息汇总.docx

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1、托福听力对话讲座5大类必须记住信息汇总托福听力中分不清哪些信息该记，哪些信息不需要记是新手很简单 犯的一类错误，而想要提升听力的得分考生就需要具备对信息价值的 辨别技巧。今日我给大家带来了托福听力对话讲座5大类必需记住信 息汇总，盼望能够关心到大家，下面我就和大家共享,来观赏一下吧。托福听力对话讲座5大类必需记住信息汇总1 . main ideaLecture 听力篇首：listen to part of the lecture in the X. X. X class, the professor if talking about X.X.X.Conversation前30秒的主旨屏幕变化消

2、失图文时登记关键信息2 .记detail （不是全部细节都需要登记）what when where who why、how3 .记语气词语气词是最简单错过的，由于它本身并没有太大的实质意义。常见 的语气词有： now, well, OK, so, let s, and oh.听到now, well, OK, so, let s,基本上代表着一个新的话题的 开头，即话题转变。这些词可以不记，但在听到的时候在笔记上划条 横线。这样笔记就显得很清晰，横线上下属于两个话题，在答题的时 候可避开张冠李戴、盲目地把听到的词拿来做题。And oh即教授在讲话的时候突然想到了某一点，并进行补充。假相反，在木星

3、的中纬度地区，他们在大红斑上方800公里处发觉了 温度峰值，相比于四周的温度，这个地方的温度飙升了几百度。对此 最好的解释是这种温度飙升来自下方的漩涡，那里的大气湍流通过相 互碰撞产生热量，就像在起风的沙滩上拍打海岸的白浪一样。虽然这 是一种宇宙现象，但木星最强大的风暴使其尤为显著。虽然看起来很惊奇，不过科学家已经在地球上发觉了规模较小、较 温柔的相同现象，当雷雨云砧上升越过山脉，就会产生加热上方空气 的微波。1. even though即使；尽管；纵然；例句：The book is a mirror of his life even though it is not a biography.

4、这本书虽然不是传记，但照旧是他生活的写照。2. come from来自；始于；例句：Correct ideas come from social practice.正确的思想来自社会实践。3. according to依据，依据，依照；例句：Youve been in prison six times according to our records.依据我们的记录，你曾入狱六次。4. slam into猛烈撞击；例句：The plane slammed into the building after losing an engine shortly after take-off.飞机起飞之后

5、不久，就有一个引擎消失故障，随即便一头撞上了大楼。如这所谓的“某一点”不是重要信息，教授没有刻意补充的必要，所 以不能小看“and oh”的作用。4 .记规律词把规律关系词分类，主要有因果、假设、转折、解释补充、同异分 类。由于中西方规律思维的差异，有同学对许多显而易见的信息并不 敏感。然而这些规律中常含考点。表示因果的有：because, since, thus, which results in, so, lead to.留意其中的因果规律，不行因果颠倒。表示转折的有：but, however, in fact, actually. But 之后很 有可能出考点。留意:A. . but B

6、. ”在这里B是重点。而且涉及 到态度问题的时候，美国人喜爱把褒义放在前面，所以一般状况下 but后面是贬义。A之前可能没有明显的示意信息，所以A的内容简 单被忽视。但听到but的时候必需把它之后，即B的内容登记来。依 据“but”，我们也可以反推出A 了。表示解释的有： in other words, to put it in simple terms, which means, suggests, indicates.在lecture中，假如某个学术词是考 点，那么它必定有通俗的解释，而这些解释应当是能听懂的。所以听 到以上这类词的时候，要把学术词登记来（可以记谐音），并且理解通 俗的意思

7、。表示同异分类的有： in common, similar, resemble, contrast with, distinction.这是托福听力最喜爱考的题型之一。例如教授 在philosophy的课上介绍了 3位哲学家。应当借助这些规律关系词登记他们各自不同的观点，以及他们的共同点。5 .记强调词强调词可以理解为褒贬颜色特殊鲜亮的词汇，如important, interesting, extraordinary, strange, surprising / surprised. 这类词通常以It is.的句型开头。当听到“it is important that.或者 “it is in

8、teresting to know that. . . v 时，笔记重 点应当是that之后的内容：它重要在哪里？为什么它会令人惊 异?有强调词消失时常会考态度题。2022托福听力练习：加固水坝有利鱼类繁殖In the early 19th century the fur industry reached what was then known as the Oregon Territories. Lewis and Clark found massive numbers of Pacific salmon and steelhead trout there, swimming among t

9、he beaver dams scattered across the Columbia River Basin.But in an effort to starve American interests, Canadas Hudsons Bay Company tried to create a fur desert by killing off as many fur-bearing animals as they could. As a result, beavers had all but disappeared from the area by the year 1900. And

10、once the beavers and their dams were gone, fish populations dropped.Today, steelhead trout numbers in the region continue to fall. But scientists and government agencies are working to restore their habitats.Were looking for restoration approaches in these areas to recover ESA-listed species, but we

11、 really dont know what works and what doesnt. Nick Bouwes of the environmental consulting firm Eco Logical Research and Utah State University.He says that the U. S. spends a billion dollars each year to restore watersheds, but without any real empirical information to guide those efforts. So Bouwes

12、and his team tested the idea that by helping beavers, they could help the fish.Dams naturally alter the flow of streams, providing fish with a variety of suitable habitats. But the watersheds have become so degraded that theres not enough woody vegetation available for the beavers to build strong da

13、ms. The flimsy ones they do build get washed away whenever theres a big storm.The idea was, can we reinforce these dams so that they maintain their integrity during high flows, and can be maintained by beavers to capture that sediment, to reconnect that floodplain?For seven years, the researchers co

14、mpared Bridge Creek, which had lots of artificially strengthened dams, to Murderers Creek, which had none. And in Bridge Creek, the fish flourished一despite the view held by some that beaver dams are bad for fish. The results are in the journal Scientific Reports.Beavers, theyre really good at making

15、 a mess of a system, and its that messiness thats exactly what were looking for, by creating more complex fish habitat.And costing just $11,000 for each kilometer of stream, artificial dam reinforcements are much cheaper than conventional restoration methods一since the beavers do most of the work for

16、 us. And that is a dam good deal.毛皮行业在19世纪早期进入到当时闻名的奥勒冈领土。刘易斯和 克拉克发觉，大量的太平洋鱼圭鱼和硬头鳍在哥伦比亚河流域的海狸水 坝中游来游去。但是为了节制美国的利益，加拿大哈德逊湾公司试图创建一个“毛 皮沙漠”，尽可能多地杀死毛皮类动物。因此，海狸在1900年时几 乎消逝殆尽。一旦海狸和它们制造出来的水坝都不见了，鱼类数量就 会开头下降。现在，该地区的硬头鱼尊数量仍在连续下跌。但是科学家和政府机构 正在努力恢复它们的栖息地。“我们正在这些领域查找修复方法以恢复ESA名单上的物种，但我 们真的不知道哪种方法有效，哪种方法没有作用。”这

17、是环境询问公 司生态讨论公司和犹他州立高校的讨论人员尼克鲍威斯所说。他说，美国每年在恢复流域方面花费10亿美元，但是没有任何实 证信息来指导这些努力。所以鲍威斯和他的团队测试了通过关心海狸 来关心鱼类的方法。大坝可以自然地转变河流的流淌，为鱼类供应各种合适的栖息地。 但由于水域质量严峻下降，导致没有足够的木本植物供海狸建筑结实 的水坝。只要有大风暴来袭，它们建筑的劣质水坝就会被冲走。“我们的想法是，能不能通过加强这些水坝使它们在高流淌性期间 保持完整性，由海狸采集沉积物去填补洪泛区来保持完整性？”七年来，讨论者将有过许多人工加固水坝经受的Bridge Creek与 没有人工加固水坝经受的Mur

18、derers Creek,相比较。虽然有观点认 为海狸水坝对鱼类有害，不过在Bridge Creek,鱼类大量繁殖起来。 这项讨论成果刊登在科学杂志上。“海狸特别擅长扰乱系统，而这种干扰正是我们所需要的，由于这 样能制造出更多复合鱼类栖息地。”与传统修复方法相比，每公里河流只需花费L 1万美元的人工加固 大坝更加廉价，由于海狸为我们做了大部分工作。这是一桩相当划算 的交易。重点讲解：1. kill off全部杀死;灭亡；例句：his spray will kill off any pests or insects.这种喷雾能够毁灭任何的害虫或者昆虫。2. as a result 结果；后果;例

19、句：As a result, daily output has doubled.结果日产量翻了一番。3. wash away 冲垮；冲走;例句：Flood waters washed away one of the main bridges in Pusan. 洪水冲垮了釜山的一座主要桥梁。4. be good at擅长的；精通的；能干的；例句：Im pretty good at water skiing.我对滑水橇很在行。2022托福听力练习：木星大红斑释放神奇能量For most people, Jupiters most recognizable一and mysterious一featu

20、re is the Great Red Spot. For centuries, astronomers have watched the storm spin across the giant worlds face.But for planetary scientists, Jupiters most distinctive mystery may be whats called the energy crisis of its upper atmosphere: how do temperatures average about as warm as Earths even though

21、 the enormous planet is more than fives times further away from the sun?All the suns giant planets display this energy crisis, and those in chilly orbits around other stars probably have it, too. So where does the energy to heat their upper atmospheres come from?According to a new study, the energy

22、must originate within the giants, get transported upward and become amplified by turbulent storms. The finding appears in the journal Nature.,A目7This offers a new window into Jupiters depths, and should allow researchers to better understand gas-giant atmospheres throughout the universe. And its all

23、 connected to the Great Red Spot.Astronomers have long known that auroral displays can heat Jupiters poles, where charged particles trapped in the planets intense magnetic field slam into its upper atmosphere. Some theorists thought this auroral heating could flow toward the equator to warm the plan

24、ets midlatitudes. So, using NASAs Infrared Telescope Facility, astronomers observed Jupiter for nine hours, looking for these flows as thermal fluctuations in the planets upper atmosphere.But they saw none.Instead, in Jupiters mid-latitudes they spied a thermal spike 800 kilometers above the Great R

25、ed Spot, where temperatures soared hundreds of degrees higher than the surroundings. The best way to explain this spike is from the swirling maelstrom below, where turbulent atmospheric waves must generate heat by crashing together like breakers on a windy beach shore. Though this must be a planet-w

26、ide phenomenon, it is most obvious directly over Jupiters largest, most powerful storm.As alien as it seems, scientists have seen the same behavioron much smaller, gentler scales here on Earth, when thunderheads rising over mountain ranges create rippling waves that heat the air above.对大多数人来说，木星最简单辨

27、认、最神奇的特征在于：大红斑。 数个世纪以来，天文学家已经观看到了木星表面这一风暴气旋。但是对行星科学家来说，木星最最独特的神奇之处在于所谓的上层 大气中的“能源危机”：木星这颗巨大行星到太阳的距离比地球到太 阳的距离远五倍以上，可是为什么其平均温度却和地球一样暖和？全部太阳系中的巨行星都呈现出这种能源危机，而那些在寒冷轨道 围绕其他恒星运转的行星可能也会消失这种能源危机。那么，使上层 大气升温的能源从何而来？一项新讨论表明，这一能源确定源自巨行星，然后向上输送，并通 过猛烈的风暴扩大。该项讨论结果发表在自然杂志上。这为探究木星深处供应了一个新视角，并且这一发觉使讨论人员可 以更好地了解整个宇宙中巨型大气层的神秘。而这一切都与大红斑有 关。天文学家很早以前就知道极光可以使木星的两极升温，这是由于被 困在木星强磁场中的带电粒子和其上层大气发生了猛烈撞击O 一些理 论家认为，这种极光加热可以向赤道流淌，从而使木星中纬度地区变 暖。所以，天文学家利用美国航空航天局的红外望远镜设备观测了木 星9个小时，试图在木星上层大气发生热涨落时查找这一热流。但是他们什么都没看到。