官方真題Official模考軟件一直是考生不可或缺的一個(gè)備考工具，很多托?？忌荚谟眠@個(gè)。為了讓大家更好的使用這個(gè)官方真題Official資料，這里小站教育編輯為大家整理了完整的官方真題Official真題文本、題目及答案解析，希望對(duì)大家托福備考有幫助。

官方真題Official35托福聽(tīng)力Lecture 4對(duì)話(huà)原文免費(fèi)分享(原TPO)

官方真題Official 35-L4

Narrator:

Listen to part of a lecture in an Earth science class.

Professor:

Let's review something from last week. We talked about an event that happened 65 million years ago. Anyone?

Student:

An asteroid hit Earth. Um...well, we think an asteroid hit Earth, near the Yucatan Peninsula, in Mexico, and that wiped out all the dinosaurs.

Professor:

Right. I wouldn't say that we've got 100% proof, but there's very strong evidence that this is why that mass extinction occurred.

Okay. But did you know there was an earlier extinction far greater than the one that killed off the dinosaurs? It was what we call the Permian Extinction.

Now, way back about 290 million years ago, at the beginning of the Permian Period, there was just one big continent, a super continent. And as the climate warmed up, plant and animal species began to diversify profusely. So life during the Permian Period was abundant and diverse. But about 250 million years ago, the Permian Period ended with a rapid mass extinction, something happened that wiped out 75% of the land animals and over 95% of ocean life.

So what was it? What could have caused this?

Well, with the all the evidence that it was an asteroid that led to the dinosaur extinction, we began asking ourselves: is it possible that another asteroid much earlier caused the Permian Extinction? And so researchers have been looking for an impact crater.

Well, with the all the evidence that it was an asteroid that led to the dinosaur extinction, we began asking ourselves: is it possible that another asteroid much earlier caused the Permian Extinction? And so researchers have been looking for an impact crater.

Student:

I thought the Permian Extinction was caused by a decline in sea water oxygen levels. Isn't that what's in the textbook?

Professor:

But don't forget the textbook makes it very clear that's only a theory.

Student:

And it mentions something about volcanic eruptions too.

Professor:

It does, but now this new theory has led to a search for evidence of an asteroid impact. And one place of interest is a region called Wilkes Land in eastern Antarctica.

A few years ago, a researcher reported a strange anomaly beneath the ice in Wilkes Land. Evidence of what may be a mascon. That's just short for mass concentration.

When an asteroid hits Earth, when it slams into Earth's crust, we think that causes molten rock from deep below the surface to rise up into the impact area. Sort of like if you bump your head, you get a big lump under the skin. Fluid makes the area swell. Anyway, the material flowing up from below the crust is more dense than the crust itself. So that's how we get a mascon, a spot in the crust with newer crust material that's more dense than the material all around it.

There're lots of mascons on the moon too, where a mascon’s density causes a small increase in the local gravity that can be measured and mapped by orbiting spacecraft. And where do these mascons tend to be found? In the centers of impact craters on the moon's surface.

But back to Wilkes Land. We’re not certain that the mascon there...what might be a mascon ...was actually caused by the impact of an asteroid, but there does seem to be evidence. Researchers notice a gravity anomaly similar to those on the moon. And the spot where the gravity readings are especially high...this is right in the middle of a 500-kilometer wide, circular ridge, what could be part of an old impact crater.

And if there was an asteroid impact there in Wilkes Land, the next question is: did it happen 250 million years ago? Because that would put it when in geologic history?

Student:

At the end of the Permian Period? Right when those animals went extinct.

Professor: Exactly.

Student:

But can't researchers figure that out by studying the rocks there in Wilkes Land...where this impact supposedly took place?

Professor:

Well, to get to anything from that long ago, we would have to drill down to about a mile, about 1.6 kilometers of solid ice that covers the area today. And that's not likely to happen.

But speaking of rocks, I should mention that Wilkes Land is not the only place of interest here. There's another called the Bedout High off the coast of Australia. And we have rock samples from the Bedout High. Some apparently have extraterrestrial origin. I mean, they show the effects of extreme temperatures and pressures, the level of extremes produced only by an impact. And as for their age, well, they do in fact, date back to about 250 million years ago.

怎樣用單詞推斷托福聽(tīng)力對(duì)話(huà)

場(chǎng)景方法可行的原因仍在于ETS的出題原則，大家肯定已經(jīng)非常熟悉托福聽(tīng)力考試中的"學(xué)生生活原則"，它是ETS堅(jiān)定不移的出題原則，這一原則使托福聽(tīng)力從內(nèi)容上永遠(yuǎn)離不了學(xué)生生活這一中心。學(xué)生生活的圈子是很小的，學(xué)校的校園也就那么大一點(diǎn)兒，而托福聽(tīng)力已經(jīng)考了幾十年了，所以學(xué)校里的每一寸上都不知被考過(guò)多少遍了。過(guò)去考的是這些東西，將來(lái)考的仍是這些東西?？忌诳记爸灰褜W(xué)校里的主要場(chǎng)所(如圖書(shū)館、食堂等)中常發(fā)生的重要而又典型的學(xué)生生活場(chǎng)景加以熟悉，寥寥幾個(gè)詞便可以知道整個(gè)段子或?qū)υ?huà)的基本內(nèi)容，而答案也就唾手可得。

這一方法所需的準(zhǔn)備工作相當(dāng)簡(jiǎn)單，較次要的場(chǎng)所和少見(jiàn)的場(chǎng)景考生甚至可以置之不理。但它的作用又相當(dāng)大，在此列出三點(diǎn)，略作說(shuō)明:作用一，做過(guò)一些托福聽(tīng)力題的人都會(huì)有種感覺(jué):即托福聽(tīng)力，尤其是小對(duì)話(huà)題中有相當(dāng)數(shù)量的題目?jī)H靠聽(tīng)清字面意思尚做不出答案，還必須生動(dòng)形象地想象出對(duì)話(huà)發(fā)生的具體環(huán)境和生活場(chǎng)景。在這里場(chǎng)景的方法是一個(gè)必須，考生的英語(yǔ)水平再高，語(yǔ)言能力再?gòu)?qiáng)都無(wú)助于這些題目的得分。

場(chǎng)景方法可為考生提供更加有效的技巧，而且這些技巧的有效程度也更加令人吃驚。

"學(xué)生生活原則"決定了托福聽(tīng)力中涉及的常見(jiàn)生活場(chǎng)景的有限性和它們的高重復(fù)率。它們必然是學(xué)生的日常學(xué)習(xí)生活中最為普遍、最易發(fā)生的場(chǎng)景。這些場(chǎng)景中所牽扯到的內(nèi)容和人們常說(shuō)的話(huà)又是固定的，這種固定性是由客觀的生活現(xiàn)實(shí)決定的。而ETS出題人絕對(duì)不會(huì)歪曲現(xiàn)實(shí)，這是由他們所謂出題原則決定的。所以只要考生抓住了這些固定的內(nèi)容和相關(guān)的固定詞匯、句型，就抓住了眾多絕妙的技巧。

例如托福聽(tīng)力有很多談及音樂(lè)會(huì)的對(duì)話(huà)，而一旦談到音樂(lè)會(huì)，話(huà)題永遠(yuǎn)都是固定死了的。全是好話(huà)，一句壞話(huà)沒(méi)有，所有的題目都在說(shuō):昨天晚上的音樂(lè)會(huì)可真好啊!我們過(guò)的可真是個(gè)wonderfu1 time啊!票可真難買(mǎi)啊!人可真多啊!別說(shuō)坐著啦，能站著就不錯(cuò)啦!過(guò)道上全是人!所以也不需要聽(tīng)力水平太好，只要粗略地聽(tīng)明白:"嗅!這又是談音樂(lè)會(huì)的啊!"再看選項(xiàng)有一個(gè)寫(xiě)著:The concert is excellent.選它就是了!

各位已經(jīng)知道，學(xué)生生活是托福聽(tīng)力考試的核心，學(xué)生最關(guān)心的事也是最容易考到的，因此談到課程、考試的對(duì)話(huà)和段子可謂層出不窮。假如在一個(gè)對(duì)話(huà)題中聽(tīng)到第一個(gè)人在問(wèn):某門(mén)課程難不難?(Is the course hard or not?)，則無(wú)須聽(tīng)第二人的回答即可知答案肯定是難。又如在一個(gè)對(duì)話(huà)題中只要聽(tīng)到兩人是在議論"某位老師要求嚴(yán)不嚴(yán)"，其余的話(huà)別聽(tīng)了，答案肯定是嚴(yán)!

又如托福聽(tīng)力中有大量談及食物這個(gè)場(chǎng)景的。在這個(gè)場(chǎng)景中只要談到apple pie，答案肯定是好吃，考生照好吃去選肯定沒(méi)錯(cuò);而談到pizza答案肯定是難吃，考生照難吃去選也肯定沒(méi)錯(cuò)。

這些托福聽(tīng)力技巧在托福聽(tīng)力備考過(guò)程中基本上得到驗(yàn)證，大家可以根據(jù)自己的經(jīng)驗(yàn)總結(jié)出更多技巧。

托福聽(tīng)力材料應(yīng)該怎樣使用

托福聽(tīng)力的文本是一定要在聽(tīng)完之后仔細(xì)的進(jìn)行分析的，每一句里的詞匯首先都要弄清楚。其次，每個(gè)句子的核心意思你要能夠聽(tīng)得出來(lái)。再者，整個(gè)段落的中心意思也需要你多聽(tīng)多練進(jìn)行掌握。還有要在聽(tīng)完每篇文章后反復(fù)分析其中涉及到的考點(diǎn)。比方說(shuō)為什么在這個(gè)地方出題了，考點(diǎn)是什么。這樣就可以方便之后遇到類(lèi)似的情況還是答不出來(lái)的情況

有些專(zhuān)業(yè)性很強(qiáng)的文章也要研讀嗎

當(dāng)然需要了，不過(guò)你需要研讀的更多的是文章里的考點(diǎn)。那么這些考點(diǎn)不只在這篇文章里能夠使用，也可以在另外一篇不同話(huà)題的文章里使用。里面的單詞也盡量還是背下來(lái)吧。

托福聽(tīng)力中的五遍練習(xí)方法

托福聽(tīng)力是新托福的極為重要的一部分，但托福聽(tīng)力對(duì)于中國(guó)考生而言開(kāi)始還是很難掌控的，從之前接觸的不多，直接到如此模式的聽(tīng)力，很難集中注意力，托福聽(tīng)力題如果遇到稍微專(zhuān)業(yè)點(diǎn)的部分聽(tīng)不懂那更是家常便飯。托福聽(tīng)力的提高可不是一朝一夕的，而是需要極大的毅力與堅(jiān)持的過(guò)程。下面小編就為大家介紹下專(zhuān)家介紹的托福聽(tīng)力備考中要求聽(tīng)五遍分別怎么聽(tīng)，希望對(duì)大家有所幫助。

托福聽(tīng)力的聽(tīng)寫(xiě)，是所有提高聽(tīng)力的方法中最最高效的一種(注意：高效是相對(duì)而言的，實(shí)際仍然需要一段時(shí)間的持之以恒的努力奮斗)。一篇文章(以舊托福學(xué)術(shù)文章為好，最好2min內(nèi)，否則會(huì)受不了的)：

第一遍：完整聽(tīng)一遍，了解大意;

第二遍：聽(tīng)寫(xiě)開(kāi)始(聽(tīng)一句，10s左右，寫(xiě)一句，可重復(fù)播放這一句，直至聽(tīng)寫(xiě)完整一句話(huà)，切勿邊聽(tīng)邊寫(xiě)!)，鍛煉對(duì)詞匯的辨識(shí)力和頭腦儲(chǔ)存的能力;

第三遍：邊聽(tīng)邊對(duì)看托福原文;

第四遍：邊聽(tīng)邊讀，使自己頭腦中記憶的發(fā)音與正確的發(fā)音是一樣的;

第五遍：盡量不看文章，邊聽(tīng)邊“說(shuō)”，達(dá)到爐火純青。

這樣堅(jiān)持每天、持之以恒的練習(xí)2小時(shí)，終有一天，會(huì)發(fā)現(xiàn)越來(lái)越聽(tīng)懂英文的東西，滿(mǎn)足感成就感無(wú)限放大!

考托福前半個(gè)月，開(kāi)始練習(xí)托福真題，做題后也可以采用聽(tīng)寫(xiě)的方法。聽(tīng)力考試，除了一些很討厭的小細(xì)節(jié)題，其它都要盡量保證不丟分。

以上就是托福聽(tīng)力的秘方，主要講述聽(tīng)為主記為輔的觀點(diǎn)。關(guān)于記托福聽(tīng)力筆記，不是很強(qiáng)調(diào)，還是覺(jué)得聽(tīng)為主，記為輔，但是絕對(duì)不要本末倒置。當(dāng)然如果可以早些時(shí)候就開(kāi)始練習(xí)記聽(tīng)力筆記，也會(huì)受益匪淺的。

官方真題Official35托福聽(tīng)力Lecture 4對(duì)話(huà)原文免費(fèi)分享(原TPO)相關(guān)文章：

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