托福TPO39聽(tīng)力Lecture真題解析

TPO，即toefl Practice Online的首寫(xiě)字母，就是托福在線(xiàn)練習(xí)的意思，TPO可以為考生提供全真的模擬考試環(huán)境和過(guò)往真題，而TPO題庫(kù)也是有著不斷的更新。在托福聽(tīng)力備考中，想要快速提升自己的托福聽(tīng)力能力，選擇好適合的練習(xí)材料是個(gè)非常重要的環(huán)節(jié)。而對(duì)于很多備考托福的學(xué)生來(lái)說(shuō)，TPO往往就是一個(gè)首先的備考材料。今天，小編就為大家?guī)��?lái)托福TPO39聽(tīng)力Lecture真題解析。

托福TPO39聽(tīng)力Lecture1  【在線(xiàn)咨詢(xún)】

1. What does the professor mainly discuss?1. What is the main purpose of the lecture?
A. To explain how geologists identified the minerals present during Earth's formation.
B. To explain why living organisms require certain minerals to survive.
C. To explain the differences between simple and compound minerals.
D. To explain a recent theory about mineral formation.
答案：D選項(xiàng)正確

解析：本題的出題點(diǎn)在于：A basic question of geology is how all these new minerals came into being. Well, recent studies have turned to biology to try to explain how this happens. 這里開(kāi)頭直接明確點(diǎn)出了講座的主題，就是講解新的礦物是怎么形成的。最近有一個(gè)研究可以解釋它的產(chǎn)生。選項(xiàng)D符合這一句的意思。其余三個(gè)選項(xiàng)不符合。選擇D。

2. What point does the professor make about the minerals present during Earth's formation?
A. They were comparatively few of them.
B. They were more complex than minerals formed on other planets.
C. Most were not affected by temperature and pressure changes on early earth.
D. Some of them are no longer being formed naturally on Earth.
答案：A選項(xiàng)正確

解析：本題的出題點(diǎn)在于：Since Earth formed some four and a half billion years ago, the number of minerals here has increased dramatically, from a few dozen relatively simple minerals early on to over 4,300 kinds of minerals we can identify today, many of them wonderfully complex. 這里教授說(shuō)在地球的形成過(guò)程中，礦物質(zhì)的數(shù)量急劇增加，從僅僅實(shí)際中簡(jiǎn)單礦物質(zhì)一直增長(zhǎng)到今天的超過(guò)四千三百中，很多現(xiàn)在的礦物質(zhì)組成復(fù)雜。所以以前的礦物質(zhì)數(shù)量比較少。選項(xiàng)A正確。其余三個(gè)選項(xiàng)沒(méi)有依據(jù)。選擇A。

3. What similarities does the professor point out between minerals and living organisms?
Click on 2 answers
A. Both first appeared on Earth at approximately the same time.
B. They both can be formed only in the presence of oxygen.
C. They both have become more diverse and complex over time.
D. Not only are they both shaped by their environment, but both also affect it.
答案：CD選項(xiàng)正確

解析：本題的出題點(diǎn)在于：
And when environments become more complex, as tends to happen over time, those earlier adaptations, those variations, become the basis of yet other combinations and variations, and lead to ever more diverse and complex forms of life.

Living organisms not only adapt to their environment, but also affect it, change the environment within which other organisms may then develop.這兩處分別說(shuō)了礦物質(zhì)進(jìn)化的兩個(gè)特點(diǎn)。第一個(gè)是越進(jìn)化越復(fù)雜，第二個(gè)是有機(jī)物不僅僅單純適應(yīng)環(huán)境，還改造環(huán)境，讓環(huán)境變得更易于它們生存。選項(xiàng)C和選項(xiàng)D分別對(duì)應(yīng)以上兩點(diǎn)。其余兩個(gè)選項(xiàng)沒(méi)有相應(yīng)依據(jù)。雙選CD。

4. What are stromatolites?
A. Fossils remains of microbial mats.
B. Layered deposits of iron-based minerals.
C. Layers of rock that indicate changes in Earth's pressure and temperature.
D. Rock formations created when oxygen interacts with certain metals.
答案：A選項(xiàng)正確

解析：本題的出題點(diǎn)在于：Stromatolites look like wavy layers of sedimentary rock, but they are really fossils, fossils of the waste from microbial mats. 這里說(shuō)stromatolites看起來(lái)像是沉積巖層的波動(dòng)層，但是其實(shí)是真的微生物墊的化石。選項(xiàng)A明顯符合題意。其余三個(gè)選項(xiàng)不符合。選擇A。

5. Why does the professor talk about microbial mats?
A. To explain why organisms tend to colonize near certain minerals.
B. To describe how minerals can be created by living organisms.
C. To illustrate the effects of geological processes on living organisms.
D. To emphasize that evolving life depended on the presence of oxygen.
答案：B選項(xiàng)正確

解析：本題的出題點(diǎn)在于：
Microbial masts are vast colonies of one-celled organisms that were once the most prevalent form of life on Earth. And the study of stromatolites indicates that these ancient microbial masts interacted with minerals in the environment and left behind new compounds as waste products.
這里進(jìn)一步說(shuō)明了微生物墊是什么，它是一種巨大的單細(xì)胞有機(jī)物的集合，這種生物曾經(jīng)在地球上占據(jù)主導(dǎo)地位。對(duì)于這種生物的研究告訴我們，這些古代的微生物墊會(huì)和環(huán)境中的礦物質(zhì)相互作用，形成新的化合物。這也就說(shuō)明了礦物質(zhì)怎么形成新生物。選項(xiàng)B符合。其余三個(gè)選項(xiàng)不符。選擇B。

6. What does the professor think about using evidence of minerals on another planet to determine life has existed there?
A. He believes it is the most promising way to search life on another planet.
B. He doubts that complex minerals will ever be found on another planet.
C. He is cautious about assuming that certain minerals indicate the presence of life.
D. He is surprised that the technique was not suggested until recently.
答案：C選項(xiàng)正確

解析：本題的出題點(diǎn)在于：
But you might be interested to know that this concept of mineral evolution is being used in the search for evidence of life on other planets. The thinking is that if certain minerals occur here on Earth, as a result of a biological process, and if we also find those same minerals on another planet, this would suggest that life may have once existed there!
But just because a particular mineral is found on, say Mars or Venus, we really shouldn't assume that whatever caused it to turn up there, must be the same process that formed that mineral here on Earth.
講座最后這兩段說(shuō)明，教授認(rèn)為如果我們?cè)谕庑乔虬l(fā)現(xiàn)礦物質(zhì)的存在，就可以推測(cè)外星球上也有生命存在。但是他接著說(shuō)，也正是因?yàn)槟撤N特定的礦物質(zhì)在火星上或者金星上被發(fā)現(xiàn)，我們也不應(yīng)該假設(shè)讓它出現(xiàn)在那里的就肯定是跟地球一樣的生命。所以教授對(duì)于通過(guò)檢測(cè)礦物質(zhì)存在來(lái)推測(cè)生命存在的理論還是比較謹(jǐn)慎的。選項(xiàng)C符合。其余三個(gè)選項(xiàng)則不符。選擇C。

托福TPO39聽(tīng)力Lecture2  【在線(xiàn)咨詢(xún)】

1. What are the speakers mainly discussing?
A. The effects of ethnographic films on the communities being studied.
B. The process of making a community-determined film.
C. The topics typically discussed in community-determined films.
D. The efforts of filmmakers to record in their own communities.
答案：B選項(xiàng)正確

解析：本題的出題點(diǎn)在于：Let's look at a particularly effective approach to ethnographic film-making, which was developed in the 1970s. This particular style of ethnographic filmmaking is called the community-determined approach.
這里明確點(diǎn)出了這個(gè)講座的主旨，就是關(guān)于民族生態(tài)學(xué)電影制作的介紹。這種的電影制作方法也被稱(chēng)為是基于種族群落的方法。選項(xiàng)B符合原文意思。其他三個(gè)選項(xiàng)不符合。選擇B。

2. What is one way ethnographers try to gain a community's interest in participating in a film?
A. They visit regularly to discuss any concerns.
B. They send letters describing the purpose of the film.
C. They research the history of the community.
D. They show a film about another community.
答案：D選項(xiàng)正確

解析：本題的出題點(diǎn)在于：A film if available is shown to the village council so that they get an idea of the experience of another community.這里指出了電影制作人如何讓部落的人們?cè)敢馀臄z電影，那就是給他們看別的部落拍攝的電影成品，讓他們有興趣來(lái)參與。選項(xiàng)D正確。其余三個(gè)選項(xiàng)則不符合原文意思。選擇D。

3. What does the professor imply about the role of the village council members?
A. They decide whether or not a film will be made.
B. They make sure all community members appear in the film.
C. They prefer to do most of the interviewing themselves.
D. They are generally not involved in the filmmaking process.
答案：A選項(xiàng)正確

解析：本題的出題點(diǎn)在于：After the meeting, the filmmakers leave and the village council is given all the time they need to think about what was discussed. Later, if the village council members are interested, they send a letter or call. 在會(huì)議之后，電影制作者離開(kāi)村莊，選擇權(quán)就被交給了村莊的議會(huì)，他們可以盡情討論答不答應(yīng)。如果決定參與的話(huà)，他們?cè)俳o電影制作者打電話(huà)或者寫(xiě)信。村委會(huì)決定了是不是拍攝這種電影。選項(xiàng)A正確。其余三個(gè)選項(xiàng)則沒(méi)有原文依據(jù)。選擇A。

4. According to the lecture, why do ethnographers live within the community they are filming?
Click on 2 answers
A. To teach filmmaking techniques to the community members.
B. To earn the trust of the community members.
C. To learn about daily life in the community.
D. To reduce the cost of travel to the community.
答案：BC選項(xiàng)正確

解析：本題的出題點(diǎn)在于：
Student:The filmmakers could get a more realistic sense of the pace of life in that community? Uh, its daily rhythm?
………
Professor:Exactly, trust is established and relationships are built first.
這里分別說(shuō)了兩個(gè)電影拍攝者住在拍攝地的好處，一個(gè)是近距離感受村莊的生活節(jié)奏，第二個(gè)是可以跟村民建立信任的良好關(guān)系。選項(xiàng)B和選項(xiàng)C分別對(duì)應(yīng)這兩點(diǎn)。其余兩個(gè)選項(xiàng)則沒(méi)有對(duì)應(yīng)原文。雙選BC。

5. What does the professor imply about the interview process?
A. It is the most time-consuming part of the filmmaking project.
B. It results in the most interesting scenes in community-determined films.
C. It does not give the filmmakers enough control over the finished product.
D. It is to a large extent controlled by the community members.
答案：D選項(xiàng)正確

解析：本題的出題點(diǎn)在于：
So, for instance, the community, not the filmmakers, decide who is to be interviewed for the films. Control of the interview is in the interviewee's hands. If the person being interviewed says to stop at any time, the recording stops…….
這里說(shuō)明了拍攝的主動(dòng)權(quán)掌握在被拍攝的村民手里，而不是拍攝者。村民說(shuō)停，拍攝就停了。選項(xiàng)D符合原文意思。其余三個(gè)選項(xiàng)不符。選擇D。

6. What do the speakers suggest are two shortcomings of community-determined films?
Click on 2 answers
A. They are often expensive to produce.
B. They are too long for most audiences to enjoy.
C. They do not translate people's exact words.
D. They rarely contain all the scenes to community wants.
答案：AC選項(xiàng)正確

解析：本題的出題點(diǎn)在于：
Student:Wow, this seems like a long process. It must cost a fortune.
Professor:It does. Even with a small film crew any project as involved as this is bound to.
………
Professor:Yeah, a word for word translation could become too complicated or it'd go by too fast on the screen.
這里講到了這種基于社區(qū)的電影制作的兩個(gè)特點(diǎn)，一個(gè)是cost a fortune太貴了，還有一個(gè)就是translation become complicated翻譯很復(fù)雜。分別對(duì)應(yīng)選項(xiàng)A和選項(xiàng)C。其余兩個(gè)選項(xiàng)沒(méi)有依據(jù)。雙選AC。

托福TPO39聽(tīng)力Lecture3  【在線(xiàn)咨詢(xún)】

1. What does the professor mainly discuss?
A. Thoreau's use of train metaphors.
B. Thoreau's complex attitude toward trains.
C. Events that inspired Thoreau to write his book Walden.
D. Reasons that Thoreau's book Walden was popular in the nineteenth century.
答案：B選項(xiàng)正確

解析：本題的出題點(diǎn)在于：Narrator:Listen to part of the lecture in a literature class. The professor is discussing Henry David Thoreau.這篇講座的主旨有點(diǎn)難以總結(jié)，但是開(kāi)頭narrator的話(huà)就明確告訴我們是講一個(gè)人Thoreau。結(jié)合全部講座我們可以知道，這篇講座就是講了這個(gè)人對(duì)于火車(chē)的各種觀(guān)點(diǎn)。選項(xiàng)B正確。其余三個(gè)選項(xiàng)不符合原文意思。選擇B。

2. In Walden, Thoreau describes some benefits of trains. What benefits does the professor mention?
Click on 2 answers
A. Trains helped people feel more connected to their national culture.
B. Trains made life more convenient for many people.
C. Trains stimulated the imagination in new ways.
D. Trains cost less to use than other modes of transportation.
答案：BC選項(xiàng)正確

解析：本題的出題點(diǎn)在于：Thoreau himself praised trains for changing the way people experience their own bodies, for stirring the imagination in new ways.
Thoreau also associates trains with commerce and trade. Though his attitudes toward commerce are complicated, he credits trains for delivering goods that feed and clothe society, things that improve human life.
這里講到了Thoreau人為火車(chē)具有的兩個(gè)優(yōu)點(diǎn)。一個(gè)是激發(fā)了人的想象，還有就是促進(jìn)了商業(yè)發(fā)展，因?yàn)榛疖?chē)可以運(yùn)輸各種物資來(lái)改善人的生活。選項(xiàng)B和選項(xiàng)C分別對(duì)應(yīng)這兩個(gè)優(yōu)點(diǎn)。其余兩個(gè)則沒(méi)有原文依據(jù)。雙選BC。

3. According to Thoreau, what is the relationship trains and nature?
A. Trains can distort passengers' perceptions of nature.
B. Trains make the landscape more visually interesting.
C. Trains can transport people to natural settings.
D. Trains cause damage to the environment.
答案：A選項(xiàng)正確

解析：本題的出題點(diǎn)在于：He points out that riding on trains distorts people's experiences of the natural world. Trees, wild life, landscapes just zip right past you and this is a real problem for him.這里提到了Thoreau認(rèn)為坐火車(chē)可以扭曲人對(duì)于自然世界的感覺(jué)。他覺(jué)得坐在火車(chē)上，飛逝的樹(shù)木，野生動(dòng)物和景色會(huì)飛速地略過(guò)人，這樣會(huì)他造成困擾。選項(xiàng)A符合。其余三個(gè)選項(xiàng)不符。選擇A。

4. According to the lecture, what point does Thoreau emphasize about trains and the penny press?
A. Penny-press publications were read by average citizens, but trains were used mainly by the wealthy
B. Trains delivered penny-press publications to a broad national audience.
C. Both trains and the penny press threatened people's individualism.
D. Both trains and the penny press enhanced people's understanding of the world.
答案：C選項(xiàng)正確

解析：本題的出題點(diǎn)在于：He worries about people no longer thinking for themselves and uncritically accepting all this cheap popular literature and the trivial details of the news. 這里Thoreau認(rèn)為，人們?cè)诨疖?chē)和penny press出現(xiàn)以后會(huì)根據(jù)這些現(xiàn)代發(fā)明來(lái)決定自己的生活節(jié)奏，進(jìn)而失去自我。選項(xiàng)C符合題意。其余三個(gè)選項(xiàng)不合適。選擇C。

5. What does the professor imply when he discusses modern technology?
A. It is better to wait until a new technology is perfected before adopting it.
B. A new technology that has more disadvantages than advantages is unlikely to succeed.
C. People are more skeptical of new technology now than in Thoreau's time.
D. People should consider possible negative consequences of a new technology before adopting it.
答案：D選項(xiàng)正確

解析：本題的出題點(diǎn)在于：When there is a new invention, a new computer or a mobile phone technology, some new gadget, there is a tendency to think that we need to have that thing, just as people were doing in the nineteenth century with respect to railroads. Accepting them as a necessity without considering the possible negative consequences or trade-offs that can flow from them.這里教授講了自己對(duì)于現(xiàn)代發(fā)明的態(tài)度，他認(rèn)為當(dāng)新發(fā)明出現(xiàn)，我們會(huì)很急迫的不加甄別地覺(jué)得自己非常需要也擁有一個(gè)，沒(méi)有考慮它們會(huì)帶來(lái)的負(fù)面影響就接受這些新發(fā)明。教授對(duì)此持否定態(tài)度。選項(xiàng)D正確。其余三個(gè)選項(xiàng)不符原文。選擇D。

6. What is the professor's opinion abbot Walden as it relates to the world today?
A. Walden is of interest mainly for its descriptions of nineteenth-century life.
B. The issues that Walden addresses remain relevant today.
C. Mass transportation has changed too much for Walden to be relevant today.
D. Walden correctly predicted that trains would be replaced by other technologies.
答案：B選項(xiàng)正確

解析：本題的出題點(diǎn)在于：So this is one way to think about Thoreau's text, not just as an important book in its time, for what it tells us about the nineteenth century, but also as a text that can teach us certain things about ourselves in contemporary society.教授在這里說(shuō)，我們不僅要吧Thoreau的書(shū)單純當(dāng)做當(dāng)時(shí)的一本書(shū)，而是要從中吸取經(jīng)驗(yàn)教訓(xùn)，并運(yùn)用到當(dāng)代社會(huì)。所以這本書(shū)和現(xiàn)在的某些問(wèn)題還是有關(guān)系的。選項(xiàng)B符合。其余三個(gè)選項(xiàng)則不合適。選擇B。

托福TPO39聽(tīng)力Lecture4  【在線(xiàn)咨詢(xún)】 

1. What is the discussion mainly about?
A. Advantages of cellulose over traditional sources of fuel.
B. A recent study about microorganisms that process cellulose.
C. Some newly discovered characteristics of cellulose.
D. Challenges involved in converting cellulose into fuel.
答案：D選項(xiàng)正確

解析：本題的出題點(diǎn)在于：Professor:Your reading for today's class was about potential alternative sources of energy. So one thing I want to do today is consider one of those potential energy sources: cellulose.開(kāi)頭明確給出了這個(gè)講座要講的東西：一種潛在的能源來(lái)源——纖維素。結(jié)合后文我們知道纖維素有巨大的生成乙醇的潛力，但是轉(zhuǎn)化很費(fèi)錢(qián)，暫時(shí)還是不能投入使用。選項(xiàng)D符合。其余三個(gè)選項(xiàng)不符。選擇D。

2. According to the speakers, why is cellulose such a significant potential source of energy?
A. Because it is so abundant in nature.
B. Because it is so easily created in a lab.
C. Because its enzymes have so many uses.
D. Because it can be processed in just a few steps.
答案：A選項(xiàng)正確

解析：本題的出題點(diǎn)在于：Professor:Good. It's also a potential tremendous source of energy in part because there's so much of it.這里明確點(diǎn)出了為什么纖維素在產(chǎn)生能源方面潛力巨大，因?yàn)樗�產(chǎn)量非常豐富。選項(xiàng)A正確。其余三個(gè)選項(xiàng)原文中沒(méi)有依據(jù)。選擇A。

3. What is the professor's opinion about corn-based ethanol?
A. She thinks using it in motor vehicles may harm the environment.
B. She thinks it is not an energy-efficient alternative to gasoline.
C. She thinks it will eventually become cheaper to produce.
D. She thinks researchers should invest more in its development.
答案：B選項(xiàng)正確

解析：本題的出題點(diǎn)在于：The problem is that the amount of energy we get from corn-based ethanol isn't much more than the amount of energy that gets put into making it. So it's not really worth it.這里教授指出了纖維素是可以制造乙醇，但是需要投入進(jìn)去的能量跟制造出來(lái)的乙醇可以提供的能量是差不多的。所以感覺(jué)不值。選項(xiàng)B說(shuō)教授認(rèn)為這不是一個(gè)制造汽油的經(jīng)濟(jì)的選擇，正確。其余三個(gè)選項(xiàng)不合適。選擇B。

4. The professor describes the current method for producing cellulose ethanol. What are the two important steps she mentions?
Click on 2 answers
A. Yeast is added to cellulose to create an enzyme.
B. An enzyme breaks down cellulose into sugars.
C. Microorganisms ferment sugars into alcohol.
D. Ethanol is extracted from certain microorganisms.
答案：BC選項(xiàng)正確

解析：本題的出題點(diǎn)在于：
See? Currently there are two key steps in the process.
The first is breaking the cellulose down into sugars. This is done with an enzyme, a specific type of protein. And second, after the enzyme has broken down the cellulose, yeast and other microorganisms, microbes are added to ferment those sugars into cellulosic ethanol.
這里原文中有明確的提示。制造乙醇有兩個(gè)步驟。先把纖維素用酶分解成糖，再加進(jìn)去酵母和其他的微生物來(lái)把這些糖類(lèi)發(fā)酵成乙醇。分別對(duì)應(yīng)選項(xiàng)B和選項(xiàng)C。其余兩個(gè)選項(xiàng)則沒(méi)有原文依據(jù)。雙選BC。

5. What does the professor imply about a superbug?
Click on 2 answers
A. It will be an altered version of a naturally occurring organism.
B. It was discovered as a result of looking for new sources of cellulose.
C. It may contribute to the development of an efficient way to produce ethanol
D. It may produce many kinds of alternative fuels.
答案：AC選項(xiàng)正確

解析：本題的出題點(diǎn)在于：The goal, which seems to definitely be within reach, is to design an engineer, a superbug, a specific kind of microbe, that makes cheap, commercial production of cellulosic ethanol a really possibility.這里教授提到，有一種成功率比較大的辦法是去設(shè)計(jì)一種超級(jí)細(xì)菌，這種細(xì)菌可以讓低成本的纖維素乙醇生產(chǎn)變成有可能。選項(xiàng)A和選項(xiàng)C符合原文意思。其余兩個(gè)選項(xiàng)則不符。雙選AC。

6. Why does the professor says this:
A. To emphasize the necessity of working to preserve rare species.
B. To suggest that the company will never find what it is looking for.
C. To emphasize that bacteria that break down cellulose are too rare to be useful.
D. To indicate that she endorses the company's strategy.
答案：D選項(xiàng)正確

解析：本題的出題點(diǎn)在于：I mean, the best key to unlocking the power of cellulose may well lie in a rare species of bacteria or yeast in a jungle somewhere.這里教授提到，可能最好的轉(zhuǎn)化纖維素的辦法就是去找到一種稀少的細(xì)菌或者酵母，可以高效率低成本地把纖維素變成乙醇。后面教授接著講了一個(gè)公司的做法，公司就是在嘗試改造一種酶，試著改造它的特性來(lái)符合生產(chǎn)。說(shuō)明教授贊成公司的做法。選項(xiàng)D正確。其余三個(gè)選項(xiàng)不合適。選擇D。

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