英語六級真題的聽力部分,作為衡量學(xué)生英語實際應(yīng)用能力的重要標(biāo)尺,涵蓋了短對話、長對話及短文理解三大板塊,這些題型著重考察考生捕捉關(guān)鍵信息并深入理解語境的能力。因此,深入掌握并熟練運用真題聽力材料,對于提升六級考試成績具有舉足輕重的意義。此次,我們精心整理了2023年6月大學(xué)英語六級真題聽力部分(卷二)的詳細(xì)內(nèi)容及答案解析,旨在為廣大考生提供寶貴的備考資源與參考!
Section A
Directions: In this section, you will hear two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.
Questions 1 to 4 are based on the conversation you have just heard.
1. A) She is attracted to the beauty of modern buildings.
B) She is preoccupied with her dream to be an architect.
C) She is influenced by her father who teaches architecture.
D) She is drawn to its integration of design and engineering.
2. A) Through hard work.
B) With the professor's help.
C) By studying the subject online.
D) By taking prerequisite courses.
3. A) It is groundbreaking.
B) It is long-lasting.
C) It is immaterial.
D) It is immortal.
4. A) Economics.
B) Philosophy.
C) Computer science.
D) Western art.
Questions 5 to 8 are based on the conversation you have just heard.
5. A) He has occasionally been harassed by his fans.
B) He has been guarded by a discreet assistant.
C) He is well known to the public.
D) He is a famous . football coach.
6. A) Serve as a personal assistant.
B) Play a key role in Real Madrid.
C) Run common daily chores for the woman.
D) Help promote Mr. Sanchez's public profile.
7. A) He is honest and always tells the truth.
B) He once worked part-time in university.
C) He cares little about his working hours.
D) He has little previous work experience.
8. A) He has a strong ability to connect with people.
B) He has a high proficiency in several languages.
C) He has a sound knowledge of sports consultancy.
D) He has a natural capacity to cooperate with others.
Section B
Directions: In this section, you will hear two passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.
Questions 9 to 11 are based on the passage you have just heard.
9. A) They bring more benefits to young people.
B) They require less supervision and training.
C) They are more suitable to young people.
D) They have fewer rules and pressures.
10. A) They prevent kids from enjoying adventure sports.
B) They help kids guard against any possible injuries.
C) They rob kids of the chance to cultivate their courage.
D) They deprive kids of the opportunity to develop team spirit.
11. A) Help them take up these sports when they are more mature.
B) Let them participate in some less risky outdoor activities.
C) Ask them to try some forms of indoor sports.
D) Introduce them to these sports step by step.
Questions 12 to 15 are based on the passage you have just heard.
12. A) Consumers often have a craving for the latest model.
B) Such products tend to comprise parts that are irreplaceable.
C) Tech firms intentionally design products to have short lifespans.
D) Manufacturers use effective strategies to promote fancier products.
13. A) Indicate the competitiveness of their products.
B) List a repairability score of their products.
C) Specify the major parts of their products.
D) Detail the life cycle of their products.
14. A) Take the initiative to reduce electronic waste.
B) Take due caution in upgrading their products.
C) Invest in constructing more recycling facilities.
D) Substitute all toxic substances with non-toxic ones.
15. A) It can be solved.
B) It is certain to worsen.
C) It will be fixed by tech companies.
D) It is unavoidable in the long run.
Section C
Directions: In this section, you will hear three recordings of lectures or talks followed by three or four questions. The recordings will be played only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.
Questions 16 to 18 are based on the recording you have just heard.
16. A) How internet monitoring can be implemented.
B) How to encourage productive internet surfing.
C) How cyberloafing affects overall productivity.
D) How to prevent employees from cyberloafing.
17. A) Cyberloafing is a sign of workers' laziness.
B) Cyberloafing may relieve employees of stress.
C) Employee engagement is closely related to job satisfaction.
D) Overuse of social media may lead to decline in productivity.
18. A) Taking mini-breaks means better job performance.
B) Cyberloafing generally does more harm than good.
C) Worker turnover is linked to the time allowed for cyberloafing.
D) Employees who indulge in internet surfing are most likely to quit.
Questions 19 to 21 are based on the recording you have just heard.
19. A) There were no wooden buildings.
B) There were environmental problems.
C) There were no trees.
D) There were few settlers.
20. A) He served as chairman of the Nebraska State Board of Agriculture.
B) He urged the state to start the Nebraska State Gardening Society.
C) He engaged himself in a large number of aesthetic projects.
D) He founded a newspaper and used it to promote his ideas.
21. A) A special prize was awarded to Julius Morton.
B) One million trees were planted throughout Nebraska.
C) The state government declared it the official Arbor Day.
D) Nebraska earned the nickname“the Tree Planters State”.
Questions 22 to 25 are based on the recording you have just heard.
22. A) They spread across Europe and Asia in a few decades.
B) They lived mostly in Africa for about 200,000 years.
C) They preferred to live in Europe rather than in Asia.
D) They moved out of Africa about 60,000 years ago.
23. A) The discovery of two modern human teeth in China.
B) The traces of human migration out of Africa to Asia.
C) The human fossils discovered most recently in Africa.
D) The Luna cave in Guangxi Zhuang Autonomous Region.
24. A) There must have been some reason for human migration.
B) There have been changes in animals' living conditions.
C) Humans adapted themselves to the environment there.
D) Humans had access to abundant food sources there.
25. A) How humans settled down on the Arabian Peninsula.
B) When modern humans started to disperse out of Africa.
C) What path modern humans took to migrate out of Africa.
D) Why fresh water is so important for human survival.
Section A
Questions 1 to 4 are based on the conversation you have just heard.
M: Have you decided what you wish to study?
W: Yes, professor. I wish to study architecture.
M: Ah, that's a wonderful profession. Why did you choose it?
W: I gave a lot of thought to things you said during our last discussion, and I decided architecture made the most sense for me.(1)In particular, I'm attracted to the marriage of design and engineering.
M: That's great, but I seem to remember you were preoccupied with all the lofty mathematics. You no longer think this aspect will be too hard for you?
W: No. I was doing some online research and I think I should be able to manage. (2)Math might be the toughest subject I encounter in the curriculum, but I' ll simply put in the work required . I'm certain the fruits of my labor will pay off.
M: I'm sure that's true. Due to its material nature, architecture is one field where you will be able to clearly witness the contribution you make to a city. (3)And the legaci es you build will last much longer than any of us mortals.
W: Yeah, I guess that's true too. So what subjects do you think I should start brushing up on in preparation? I have the whole summer.
M: These days, architecture is a very diverse and dynamic degree. Most universities will encourage you to learn different things from fields as wide-ranging as philosophy and economics. (4)Nevertheless, I would suggest you start with computer science because there will be many intricate visuals you will have to produce as part of your projects.
W: Any software in particular you think I should start with?
M: Photoshop is a good place. If you aren't yet, try to become as proficient as you can with it. And another thing that I would recommend you learn as much as you can is fine arts, in particular, the history of Western art.
1. Why does the woman wish to study architecture?
2. How does the woman say she will overcome the difficulty in learning mathematics?
3. What does the man say about architects’contribution to a city?
4. What subject does the man suggest the woman start with?
Questions 5 to 8 are based on the conversation you have just heard.
W: So as I mentioned over the phone, we are looking for someone who is very discreet. I can't stress this enough.
M: I fully understand.
W:(5)As we all know, being such a famous football player at Real Madrid, Mr. Sanchez has a very high public profile. This means he cannot leave the house without being recognized and harassed.
M: Yes, I completely understand how imperative it would be to respect Mr. Sanchez’s private life.
W: Good. (6)As his personal assistant, you would be required to run common everyday chores for Mr. Sanchez, things he cannot do himself due to his fame, like going to the supermarket or post office. So, well, at first sight it may appear that working for a celebrity is very glamorous. Nothing could be further from the truth. I'm telling you this so that you don't get any false expectations of what the job has to offer you.
M: Thanks. I understand this too. (7)This is my first job after graduating from university. So frankly, I don't have much prior working experience. I am, however, very excited about the prospect of joining this company and very keen to start from the bottom in whatever capacity I may be of use.
W: That's good to hear. You sound very energetic. Tell me why do you think you are well suited for this job?
M: Well, firstly, I love football. I'm a lifelong Real Madrid supporter and go to their games every weekend I can. I would simply love to have a job where I'm involved in some capacity with Real Madrid, regardless of the position and salary. And secondly, I think what this company does in sports consultancy is very cool. And I think my language skills could prove very useful down the road.
W: Please tell me more about your language skills.
M:(8)I am fully fluent in English and Spanish and have a working proficiency in French.
5. What do we learn from the conversation about Mr. Sanchez?
6. What will the man do if he gets the job?
7. What does the man say about himself?
8. Why does the man think he is a very competitive candidate?
Section B
Questions 9 to 11 are based on the passage you have just heard.
Adventure sports are undeniably attractive to many energetic and thrill-seeking kids. Sports like rock climbing, surfing, skiing, and mountain biking, thus have lots of appeal.(9)They don't have many of the rules and pressures of traditional team sports, but they still have all the benefits of outdoor physical activity.
When properly supervised, extreme sports can be a part of a healthy, balanced life. Some adventure sports may be associated with higher risks of injury, so it's important for kids to figure out when to take risks, and when not to. (10)Risk-free activities deprive kids of the opportunity to test themselves and overcome their fears. But to some, these very risks are what makes these sports a bad choice. They say that extreme sports can often lead to devastating injuries, especially as young thrill-seekers may attempt feats that are too advanced for them.
But let's be real. Most kids do all kinds of dangerous stuff whether you want them to or not. Adventure sports have many of the same risks and dangers, but they have an additional sense of adventure, courage and autonomy that is important to foster in young children. As always, it's up to parents to decide what's best for their kids. (11)But if you do decide that adventure sports are a bit too much, do try to introduce other forms of outdoor adventures into their lives. Camping under the stars, fishing, stargazing or even just playing in the woods can help a lot in building the same sense of self-confidence and risk-taking as in adventure sports.
9. Why do extreme sports appeal to many kids?
10. What does the speaker say about risk-free activities?
11. What should parents do if they decide adventure sports are a bit too much for their kids?
Questions 12 to 15 are based on the passage you have just heard.
The shiny gadgets of today will be waste tomorrow. Manufacturers don't talk much about this when they announce the big new thing that will replace your mostly just as good old thing. (12)In fact, technology firms often purposely design devices that will not last long and cannot be repaired so that consumers will have to spend their money on a new one.
(13)This year, the French government began requiring tech manufacturers to list a repairability score. If a device can be repaired, then its life can be extended, saving consumers money and the planet the burden of so many trashed gadgets. Equipped with this knowledge, consumers can make better choices about which products to buy.
Some 59 million tons of old TVs, computers, screens, smartphones, washers and other electronics are discarded every year. This waste is dangerous. Batteries explode in recycling facilities. Toxic substances like mercury leak into soil and groundwater and disperse in the air. Manufacturing flat screens adds greenhouse gases to the atmosphere. (14)We need tech companies to take the lead to solve this problem. If they won't, governments must make them do so.
Although tech companies will often speak of environmental sustainability, many lobby against repair legislation, fearful it will eat into their profits. Sustainability matters, but marketable design appears to matter more to these companies. Consumers should support right-to-repair legislation.(15)In this world, damage is a certainty. But we cannot leave things broken: A problem of our creation is a problem that can be fixed.
12. Why did new products soon become waste?
13. What did the French government require tech companies to do to help consumers make better choices?
14. What should tech companies do to help ensure environmental sustainability?
15. What does the speaker think of the problem of waste?
Section C
Questions 16 to 18 are based on the recording you have just heard.
On average, US workers spend about 10% of their workday surfing the internet, emailing friends or shopping online. This behavior, called cyberloafing, is believed to cost employers up to $85 billion a year in lost productivity.
(16)The majority of cyberloafing research focuses on ways to prevent employees from engaging in this behavior through interventions such as internet monitoring and computer use policies. But it turns out, such behaviors may not be a sign that a worker is lazy or just wasting time. Social media use at work has been linked to higher levels of employee engagement and job satisfaction. New research suggests cyberloafing can help workers cope with an exceptionally stressful work environment.
But is cyberloafing actually effective at reducing employee stress levels? That's the question my research team wanted to answer in our new study. (17)Our hypothesis was that cyberloafing may serve as a mini-break, giving employees an opportunity to recover from stressful work situations. To test this, we asked workers to complete an online survey and rank how much time they spent cyberloafing, checking non-work emails and shopping. We also asked them to rank job satisfaction, their desire to quit, and how often they' ve experienced mistreatment at work, such as being bullied, threatened or yelled at. As you might expect, we found that overall, more mistreatment at work was correlated with lower levels of job satisfaction and a greater desire to quit. More interestingly, we found that cyberloafing effectively buffered this connection. That is, mistreated workers who spent more time surfing the web and checking emails reported higher job satisfaction and were less likely to want to quit than similar participants who didn't cyberloaf as much. This suggests that cyberloafing acts as a sort of relief valve for workers, helping them recover from stressful experiences.
While we did not directly assess how cyberloafing affects worker performance, we believe by relieving stress it may not only reduce worker turnover, but also ultimately bolster productivity. (18)This fits with other recent research that suggests taking short breaks is associated with higher levels of daily job performance. That isn't to say cyberloafing is always good. Too much time spent on non-work activities likely causes performance to suffer. All in all, managers should be more lenient with employees. We believe a bit of online shopping or surfing the internet at work could make workers more productive in the long run.
16. What does most cyberloafing research focus on?
17. What was the hypothesis of the speaker's research team?
18. On what point do the results of the speaker's study agree with other recent research?
Questions 19 to 21 are based on the recording you have just heard.
(19)When Julius Morton moved to Nebraska City in 1854, he faced a problem shared by many settlers in the territory: It was a treeless plain. That meant no trees for building materials, or for fuel. But Morton was one of the world's first conservationists, stating, “For prosperity, we ought to plant as many forests as we have exhausted and consumed”. So he started planting trees, beginning with his own land. By 1860 Morton possesseda forest of more than 300 trees. A few years later, he had more than 1,000.
(20)As the forest grew, so did Morton's influence in Nebraska. This was largely because Morton founded the Nebraska City News, the state's first newspaper, in which he frequently wrote editorials about the practical and aesthetic benefits of tree planting. He also organized the Nebraska State Gardening Society and served on the Nebraska State Board of Agriculture.
While serving on the Board, Morton came up with an idea to spread his belief in tree planting statewide. On January 4, 1872, Morton drafted a resolution that April 10 be designated day for the planting of trees in the State of Nebraska and urged people to go out and plant trees themselves.
Morton called the special event Arbor Day as“arbor” is Latin for“tree”. The state government agreed.(21)And on April 10, 1872, the first unofficial Arbor Day was celebrated throughout Nebraska. Prizes were awarded to counties, cities, and individuals who planted the largest number of trees. That day, an astounding one million trees were planted in Nebraska— an average of more than six for every man, woman and child in the state. Since 1885, Nebraska has planted more than 700,000 acres of trees, earning it the nickname“the Tree Planters State”.
Arbor Day became a legal, civic holiday in the state in 1885. It was held on April 22—Julius Morton's birthday. In addition to a parade in Nebraska City, Morton introduced what has since become a long-standing Arbor Day tradition: Schoolchildren went outside and planted trees together.
In 1970, nearly a century after Arbor Day was first celebrated, President Richard Nixon declared the last Friday of every April to be observed as National Arbor Day. All 50 states recognize the April observance, although many hold an additional state Arbor Day in a month more suited to local tree planting.
19. What does the speaker say about Nebraska City in 1854 when Julius Morton moved there?
20. What did Julius Morton do that increased his influence in Nebraska City?
21. What does the speaker say happened on April 10,1872?
Questions 22 to 25 are based on the recording you have just heard.
(22)Modern humans arose in Africa about 200,000 years ago. They then spread across Europe and Asia sometime after 60,000 years ago. This is the“Out of Africa” model, as it's commonly known. In the 1990s, the hypothesis found widespread acceptance. But this popular idea is in need of revision, particularly given the number of important findings across Asia over the past few decades.
For instance, many new human fossils found, particularly in China, are now dated as older than 60,000 years. This calls into question the idea that modern humans migrated out of Africa only 60,000 years ago. (23)Take the recent discovery of two modern human teeth found in the Luna ca ve in China's Guangxi Zhuang Autonomous Region. When my research team and I dated these teeth, we found they were more than 70,000 years old—a situation clearly impossible if modern humans moved out of Africa only 60,000 years ago.
So with such findings, what happened exactly? Where does the most current data suggest we came from?
(24)The first question we should ask is why did modern humans leave Africa to begin with? If a population is perfectly adapted to a particular environment and has access to an abundance of resources, then there really is no reason to move or change. For instance, some monkeys in Africa have a set of teeth that has hardly changed over the course of millions of years, indicating that they found a place that has worked for them.
So what happened with humans? Some researchers have suggested that population density increased to the point where smaller human groups were forced to explore new lands. Other researchers have suggested that due to major environmental events in East Africa, humans were prompted to find greener pastures. Yet another explanation could simply be that early modern human hunters were following the large animals that they relied on, and so they moved out of Africa without realizing that they were actually moving from one continent to another.
Humans need daily access to reliable fresh water, which appears to be absent from many coastal areas.(25)This brings us to another question: by which route did modern humans move out of Africa? No clear routes across the Mediterranean from North Africa appear to be present, so the earlier dispersals out of Africa and into Europe and Asia might have been across the Arabian Peninsula.
22. What do we learn about modern humans according to the hypothesis commonly accepted in the 1990s?
23. What has called into question the“Out of Africa” model?
24. What does the speaker want to show with the example of some monkeys in Africa?
25. What question does the speaker raise close to the end of the talk?
1.D)【精析】細(xì)節(jié)辨認(rèn)題。男士問女士為什么選擇學(xué)習(xí)建筑,女士在句(1)中回答說,建筑特別吸引她的地方就在于設(shè)計與工程的緊密結(jié)合。因此答案為D)。選項中的integration是錄音中marriage的同義轉(zhuǎn)述。
2.A)【精析】細(xì)節(jié)辨認(rèn)題。句(2)中,女士承認(rèn)數(shù)學(xué)對她來說是所有學(xué)科中最難的科目,但她會努力,她相信努力就會有收獲。由此可知,女士打算通過自己的刻苦努力來解決數(shù)學(xué)學(xué)習(xí)中所遇到的困難。因此答案為A)。
3.B)【精析】細(xì)節(jié)推斷題。男士告訴女士,進(jìn)入建筑領(lǐng)域,她可以很清晰地見證自己對城市的貢獻(xiàn)。根據(jù)句(3)可知,建筑的壽命比人的壽命要長得多。由此可知,建筑是長久的,可以成為人們留給后人的遺產(chǎn)。因此答案為B)。D)項的干擾性比較強(qiáng),但immortal意為“永存的,永生不滅的”,建筑可能會留存很長時間,但卻不可能永遠(yuǎn)存在,故排除。
4.C)【精析】細(xì)節(jié)辨認(rèn)題。句(4)中,男士明確建議女士從計算機(jī)科學(xué)著手進(jìn)行學(xué)習(xí)。因此答案為C)。
5.C)【精析】細(xì)節(jié)辨認(rèn)題。根據(jù)句(5)可知,桑切斯先生是皇家馬德里隊的一位著名足球運動員,在公眾中的知名度非常高。因此答案為C)。選項中的well known是錄音中high profile的同義轉(zhuǎn)述。
6.A)【精析】細(xì)節(jié)辨認(rèn)題。根據(jù)句(6)可知,男士將會成為桑切斯先生的私人助理,替桑切斯先生做一些日?,嵤?。因此答案為A)。
7.D)【精析】細(xì)節(jié)辨認(rèn)題。句(7)中,男士告訴女士,這是他大學(xué)畢業(yè)后的第一份工作,所以,他此前是沒有多少工作經(jīng)驗的。因此答案為D)。
8.B)【精析】細(xì)節(jié)辨認(rèn)題。當(dāng)女士問男士他認(rèn)為自己為什么能夠勝任這份工作時,男士提到了兩點:第一,熱愛足球;第二,他對公司在體育咨詢方面的工作非常酷,他的語言技能在將來會很有用。根據(jù)句(8)可知,男士精通英語、西班牙語和法語。因此答案為B)。
9.D)【精析】細(xì)節(jié)辨認(rèn)題。根據(jù)句(9)可知,與傳統(tǒng)的團(tuán)隊運動相比,冒險運動沒有那么多的規(guī)則和壓力,卻能帶來戶外體育活動的所有益處。因此答案為D)。
10.C)【精析】細(xì)節(jié)推斷題。句(10)中,講話者提到,沒有風(fēng)險的活動剝奪了孩子們考驗自己以及克服恐懼的機(jī)會。從某種角度上來說,克服恐懼的過程也是培養(yǎng)勇氣的過程。因此答案為C)。
11.B)【精析】細(xì)節(jié)推斷題。句(11)中提到,如果父母認(rèn)為冒險運動有點太過了,那就應(yīng)該讓孩子們有機(jī)會接觸一些其他形式的戶外冒險運動。也就是說,讓孩子參加一些不那么危險的戶外冒險運動。因此答案為B)。
12.C)【精析】細(xì)節(jié)辨認(rèn)題。短文開頭就說,今天明明還是很新的東西第二天就會變成廢品,也就是說,很多東西的使用壽命很短,很快就會被淘汰掉。根據(jù)句(12)可知,這是因為科技公司故意設(shè)計使用壽命不長且無法維修的產(chǎn)品,從而讓消費者不得不花錢買一個新的。因此答案為C)。
13.B)【精析】細(xì)節(jié)辨認(rèn)題。句(13)中明確提到,今年,法國政府開始要求科技產(chǎn)品制造商列出可修復(fù)性評分。因此答案為B)。
14.A)【精析】細(xì)節(jié)辨認(rèn)題。短文中提到了電子垃圾對環(huán)境造成的危害。句(14)中明確提到,我們需要科技公司帶頭來解決這一問題。因此答案為A)。選項中的take the initiative是錄音中take the lead的同義轉(zhuǎn)述。
15.A)【精析】細(xì)節(jié)辨認(rèn)題。根據(jù)句(15)可知,講話者認(rèn)為,世界上的東西都會損壞,但我們不應(yīng)該就讓它們壞著,既然是我們的創(chuàng)造所導(dǎo)致問題,那這一定是可以解決的問題。因此答案為A)。
16.D)【精析】細(xì)節(jié)辨認(rèn)題。句(16)中提到,大多數(shù)關(guān)于網(wǎng)絡(luò)偷懶的研究都集中在通過互聯(lián)網(wǎng)監(jiān)控和計算機(jī)使用政策等干預(yù)措施來防止員工進(jìn)行這種行為的方法上。也就是說,以往的大多數(shù)研究重點都在如何防止員工網(wǎng)絡(luò)偷懶上。因此答案為D)。
17.B)【精析】細(xì)節(jié)推斷題。句(17)中,講話者提到,他們團(tuán)隊的假設(shè)就是,網(wǎng)絡(luò)偷懶可能是一種短暫的休息,讓員工有機(jī)會從緊張的工作環(huán)境中恢復(fù)過來。也就是說,他們認(rèn)為網(wǎng)絡(luò)偷懶可能有助于員工減輕壓力。因此答案為B)。
18.A)【精析】細(xì)節(jié)推斷題。句(18)中,講話者提到,他所進(jìn)行的研究與近期的其他研究結(jié)果相吻合,都表明短暫的休息與更高水平的日常工作表現(xiàn)有關(guān)。也就是說,稍事休息可以讓員工的工作表現(xiàn)更好。因此答案為A)。
19.C)【精析】細(xì)節(jié)辨認(rèn)題。句(19)中,講話者明確提到,1854年,當(dāng)莫頓搬到內(nèi)布拉斯加市時,他面臨著該地區(qū)許多定居者共同面臨的問題:那是一片沒有樹木的平原。因此答案為C)。
20.D)【精析】細(xì)節(jié)辨認(rèn)題。根據(jù)句(20)可知,莫頓在內(nèi)布拉斯加的影響力增長,主要原因在于他創(chuàng)辦了該州的第一家報紙《內(nèi)布拉斯加城市新聞》,他還經(jīng)常在該報紙上撰寫關(guān)于植樹的實用和美學(xué)效益的社論。因此答案為D)。
21.B)【精析】細(xì)節(jié)辨認(rèn)題。句(21)中,講話者提到,1872年4月10日,內(nèi)布拉斯加各地慶祝了第一個非官方的植樹節(jié)。慶?;顒影ㄏ蛑矘渥疃嗟目h市和個人頒發(fā)獎勵。而就在那一天,內(nèi)布拉斯加州居然種植了一百萬棵樹。因此答案為B)。
22.D)【精析】細(xì)節(jié)辨認(rèn)題。根據(jù)句(22)可知,在20世紀(jì)90年代受到普遍認(rèn)可的假設(shè)是“走出非洲”理論,即認(rèn)為大約20萬年前,現(xiàn)代人類出現(xiàn)在非洲,他們在大約6萬年前走出非洲,進(jìn)入歐洲和亞洲。因此答案為D)。
23.A)【精析】細(xì)節(jié)辨認(rèn)題。句(23)中,講話者講述了最近在中國廣西壯族自治區(qū)月神洞發(fā)現(xiàn)的兩顆現(xiàn)代人類牙齒的事件。根據(jù)講話者團(tuán)隊的研究,確定這兩顆牙齒距今已有7萬多年。但是,根據(jù)“走出非洲”理論,現(xiàn)代人類是在6萬年前才離開非洲的,那么在亞洲發(fā)現(xiàn)距今7萬多年的現(xiàn)代人類牙齒就成了一件不可能的事情。所以,在中國發(fā)現(xiàn)的現(xiàn)代人類的牙齒使人們質(zhì)疑“走出非洲”理論。因此答案為A)。
24.A)【精析】細(xì)節(jié)歸納題。根據(jù)句(24)可知,講話者對人類離開非洲的原因提出了疑問,他以非洲的一種猴子為例,說明如果不是因為特殊情況,物種不會進(jìn)行遷徙,那些猴子的牙齒在數(shù)百萬年間一直沒有變化,是因為它們沒有變化的理由。也就是說,講話者希望通過猴子的例子說明人類的遷徙應(yīng)該是有原因的。因此答案為A)。
25.C)【精析】細(xì)節(jié)辨認(rèn)題。句(25)中明確提到,講話者提出的另一個問題是:人類是沿著哪條路線走出非洲的? 因此答案為C)。
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