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　　托福備考相信學生知道的備考方法有很多，不同的備考學生方法不同，那么大家知道托福聽力學習的關鍵點有哪些呢?前面我們分享了托福聽力考試中對話和講座的行文邏輯和出題邏輯，下面為大家整理分享幾個托福聽力學習的幾個關鍵點，學生們可以參考一下，希望可以幫到大家!

　　1. 多記名詞!

　　2. 留心speaker的語氣、停頓;

　　3. 做題時保持客觀，不要yy原文沒有的細節，聽到什么就是什么。

　　關于筆記：

　　文本分析完之后，要重聽一次，并重新做一遍筆記!這很重要，邊記邊依照行文邏輯去嘗試預測內容。聽完后，在筆記上標注對應的出題位置，看看自己的筆記是否還是漏記了關鍵信息。

　　修改自己的筆記，刪除不必要的信息(比如一些形容詞等)，看看哪些可以簡寫的單詞沒有簡寫等。

　　TEXT: TPO 13 Lecture 4 Astronomy

　　【開頭段】Professor:

　　OK, I wanna go over the different types of meteorites, and what we've learned from them about the formation of Earth, and the solar system. Uh…the thing is what's especially interesting about meteorites is that they come from interplanetary space, butthey consist of the same chemical elements that are in matter originating on Earth, just in different proportions. But that makes it easier to identify something as a meteorite, as opposed to…to just a terrestrial rock. (目的主旨題①)—

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　　【主體段1】：主要是說meteorites是從Comet和asteroid來的，并進一步介紹分別是由什么構成的

　　soto talk about where meteorites come from, we need to talk about comets and asteroids, which basically...they’re basically made up of debris left over from the origin of the solar system 4.6 billion years ago.

　　Now I'm going a bit out of a order here…um…I'm not going to go into any depth on comets and asteroids now, but we'll come back later and do that. For now, I'll justcover some basic info about them.

　　OK, comets and asteroids. It might help if you think of...remember we talked about thetwo classes of planets in our solar system? And how they differ in composition? The terrestrial planets--like Mars and Earth--composed largely of rocks and metals, and the large gas giants, like Jupiter.(比較細節題②-1)

　　Well, the solar system alsohas two analogous (對比邏輯)classes of objects, smaller than planets--namely, asteroids and comets.(比較細節題②-2)Relatively near the sun, in the inner solar system, between Jupiter and Mars to be precise, we’ve got the asteroid belt, which contains about 90 percents of all asteroids orbiting the sun. These asteroidsare…uh…like the terrestrial planets,in that they're composed mostly of rocky material and metals.(比較細節題②-3)

　　Far from the sun, in the outer solar system, beyond Jupiter's orbit, temperatures are low enough to permit ices to form out of water and…and out of gases like methane and carbon dioxide. Loose collections of these ices and small rocky particles form into comets. So comets are similar in composition to the gas giants.(比較細節題②-4)

　　————————————————————————

　　【主體段2】 前面分別介紹了asteroid 和comet，現在開始真正開始說meteoroid從哪里來，然后有區分了3個不同的和meteor有關的概念。

　　Both comets and asteroids are...typically are smallerthan planets. An even smaller type of interplanetary debris is the meteoroid.And it's from meteoroids that we get meteors and meteorites."Roids" are, for the most part anyway, they are just smaller bits of asteroids and comets. (內容細節題③)

　　When these bits enter Earth’s atmosphere, well, that makes them so special that they get a special name. They're called meteors.Most of them are very small, and they burn up soon after entering Earth’s atmosphere. The larger ones that make it through the atmosphere and hit the ground are called meteorites. So meteorites are the ones that actually make it through.(對比細節題④)

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　　【主體段3】開始說三個不同的隕石類別

　　Nowwe've been finding meteorites on Earth for thousands of years, and we've analyzed enough of them to learn a lot about theircomposition,most come from asteroids, though a few may have come from comets. So essentially they are rocks, and like rocks, they're mixtures of minerals. They are generally classified into three broad categories--stones, stony irons and irons.Stone meteorites, which we refer to simply as, uh, stones, are almost entirely rock material. Theyactuallyaccount for almost all of the meteorite material that falls to earth.(轉折細節題⑤-1)

　　Buteven so, it's rare to ever find one. I mean, it's easier to find an iron meteorite or a stony iron. (轉折細節題⑤-2)

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　　【主體段4】 主要在介紹為什么stone meteorite最少被發現

　　Anyone guess why? Look at their names. What do you think iron meteorites consist of?

　　Student:Mostly iron?

　　Professor:Yeah… iron and some nickel, both of which are metals. And, if you're trying to find metal?(重聽題⑥)

　　Student:Oh! Metal detectors!

　　Professor:Right, thank you. At least that's part of it. Stone meteorites, if they lie around exposed to the weather for a few years, well, they're made of rock, so they end up looking almost indistinguishable from common terrestrial rocks--ones that originated on earth. So it's hard to spot them by eye. Butwe can use metal detectors to help us find the others, and they're easier to spot by eye. So most of the meteorites in collections, uh, in museums, they'll be...they're iron meteorites, or the stony iron kind, even though they only make up about 5 percent of the meteorite material on the ground.

　　無【結尾段】

　　上面就是培頓國際教育老師為大家分享的關于托福聽力學習的幾個關鍵點，有興趣的學生可以了解一下，想要考托福地學生注意了，更多關于托福考試的信息和資料登錄培頓教育官網點擊客服聊天，找客服老師咨詢，趕快學起來吧!