英語四級真題聽力是檢驗學生英語實際應用能力的重要標尺，它不僅考查聽力理解能力，更體現(xiàn)了對語言綜合運用的挑戰(zhàn)。掌握真題聽力，對于提升四級成績至關重要。本次，小編整理了2020年9月大學英語四級真題聽力部分內(nèi)容及答案，以供大家參考！
Section A
Directions: In this section,you will hear three news reports.At the end of each news report,you will hear two or three questions.Both the news report and the questions will bespoken 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.
News Report One
A NASA satelite orbiting over Portugal took photographs that reveal the effects of pollution from ships.One of the photos shows a thin film of clouds above the briliant blue of the North Atlantic,cut by white lines of thicker clouds that look like scars.(1) NASA officials explained those thicker clouds are signs of ship trafic below.When ships power their way throuph the ocean,they pump exhaust into the atmosphere,just as cars do.And those massive amounts of particles can cause clouds to form Get enough of those particles in one place,as from the exhaust of a ship,and they can lead to the creation of new clouds easily visible from space."These clouds can be huge.Some of them stretch hundreds of ldlometres from end to end,”NASA oficials said.(2) It's likely that these sorts of clouds are having some effect on the global climate,according to NASA officials. But scientists aren't yet sure what effect it has.
Questions 1 and 2 are based on the news report you have just heard.
1.What has caused the thick clouds in the photos taken by NASA satellite?
A)Ship traffic in the Atlantic.
B)Warm currents in the ocean.
C)Exhaust from cars in Europe.
D)Particles emitted by power plants.
2.What do NASA officials think about the thick clouds?
A)They need to be taken seriously.
B)They have a huge effect on fishery.
C)They might be causing trouble to air flights.
D)They may be affecting the world's climate.
答案詳解
1. 什么造成了美國宇航局衛(wèi)星拍攝照片中的濃厚云層?
A) 大西洋上的船舶交通。
B) 海洋中的暖流。
C) 歐洲汽車排放的尾氣。
D) 發(fā)電廠排放的顆粒。
詳解 A)。 新聞開頭提到，美國宇航局官員解釋說這些較厚的云層是大西洋上船舶往來的痕記。當船舶穿過海洋，它們就像汽車一樣將廢氣排放到大氣中，大量的顆粒物便形成了云層。因此答案為A)。
2. 美國宇航局官員如何看待這些濃厚的云層?
A) 它們需要被認真對待。
B) 它們會對漁業(yè)產(chǎn)生重大影響。
C) 它們可能會給航班帶來麻煩。
D) 它們可能會影響世界氣候。
詳解 D)。 新聞末尾提到，美國宇航局官員稱，這些云層面積很大，可綿延數(shù)百公里，很可能會對全球氣候造成一定的影響。因此答案為D)。
News Report Two
Staff at a suburban supermarket in Melboune say they feel unsafe at work after security guards were removed.This came after a series of physical attacks and verbal abuse by customers.(3) More than 50 workers at the store have signed a letter calling for a permanent security guard following a series of incidents,inchuding a customer threatening to attack a supervisor with a knife. A security worker had guarded the store each night from 7 p.m.until 12 a.m.,but that had stopped suddenly on Monday, employees said.One worker said an angry customer had thrown a chicken at his head after complaining about how long she had waited to be served.Another worker said the lack of protection at the store made her feel uncomfortable at work.(4) However,the spokesman of the supermarket said the store had taken strong action in response to incidents.“We have found very few instances of bad customer behavior at our store in the past year.In the rare cases we have seen bad behavior,we have taken strong action in response,including banning a customer from the store.”
Questions 3 and 4 are based on the news report you have just heard.
3.For what purpose did the staff at a supermarket in Melboume sign a letter?
A)To appeal for higher wages.
B)To demand better health care.
C)To call for a permanent security guard.
D)To dismiss the bad-tempered supervisor.
4.What did the spokesman of the supermarket say regarding the employees'demand?
A)It had already taken strong action.
B)It would put customers'needs first.
C)It would take their appeal seriously.
D)It was seeking help from the police.
答案詳解
3. 墨爾本一家超市的員工聯(lián)名寫信的目的是什么?
A) 呼吁漲工資。
B) 要求獲得更好的醫(yī)療保健服務。
C) 要求一位長期的保安。
D) 解雇這位脾氣暴躁的主管。
詳解 C) 。新聞開頭提到，墨爾本郊區(qū)一家超市的員工表示保安撤離后他們?nèi)狈Π踩?，此前該超市員工遭到了顧客的肢體攻擊和口頭謾罵。在發(fā)生了一系列事件后，超市50多名員工聯(lián)名寫信，要求雇用一名長期保安。因此答案為C)。
4.關于員工的要求，超市的發(fā)言人說了什么?
A) 超市已經(jīng)采取了強有力的措施。
B)超市會把顧客的需求放在第一位。
C) 超市會認真考慮他們的訴求。
D) 超市正在向警方尋求幫助。
詳解 A) 。新聞末尾提到，超市已經(jīng)采取強有力的措施來應對這些沖突，在過去一年里，幾乎沒有發(fā)現(xiàn)顧客的不良行為。而在為數(shù)不多的幾次沖突中，超市也采取了措施，比如禁止一位顧客進入超市。因此答案為A)。
News Report Three
(5) Drivers on their way to the Polish capital of Warsaw on Wednesday moming found the road blocked by an unusual obstacle:tons of liquid chocolate that spilled onto the motorway. (6) A truck canying the sweet load hit a road barier and overtumed,blocking two lanes.The cracked tank spilled a pool of rapidly-hardening chocolate,which quickly covered the width of the road.While the driver was taken to hospital with a broken arm,firefighters struggled to remove a reported twelve tons of solid chocolate from the road.(7)A representative for the firefighters told the local TV that removing the chocolate was worse than dealing with snow.After contacting the chocolate manufacturer,the frefighters resorted to spraying hot,pressurized water to get rid of the sticky substance.The local TV also noted that the cleanup spanned more than a mile,because drivers simply drove through the chocolate after the crash,leaving a long chocolate trail.But despite the sticky situation,firefighters and police attending to the cleanup were reportedly cheerful about the long task ahead.After all,who could be mad about twelve tons of chocolate?
Questions 5 to 7 are based on the news report you have just heard.
5.What did drivers on the motorway to Warsaw find?
A)The road was flooded.
B)The road was blocked.
C)The road was frozen with snow.
D)The road was covered with spilled gas.
6.What does the report say about the accident?
A)A truck plunged into a pool of liquid chocolate.
B)The heavy snow made driving very difficult.
C)The truck driver dozed off while driving.
D)A truck hit a barrier and overturned.
7.What did the firefighters'representative tell the local TV?
A)It was a long time before the cleanup was finished.
B)It was a hard task to remove the spilled substance.
C)It was fortunate that no passenger got injured.
D)It was difficult to contact the manufacturer.
答案詳解
5. 在去往華沙的路上，司機們發(fā)現(xiàn)了什么?
A) 路被淹了。
B) 路被堵塞了。
C) 路被雪凍住了。
D) 路上滿是灑出的汽油。
詳解 B)。新聞開頭提到，周三早上，在去往波蘭首都華沙的高速公路上，司機們發(fā)現(xiàn)道路被數(shù)噸灑出的液體巧克力堵塞了。因此答案為 B)。
6.關于這場事故，這篇報道說了什么?
A) 一輛卡車陷入了一灘液體巧克力中。
B) 大雪使開車變得很難。
C) 卡車司機在開車時打盹。
D) 一輛卡車撞到路障后翻倒了。
詳解 D)。 新聞中提到，一輛載滿甜食的卡車撞到路障后翻車，堵塞了兩條車道。因此答案為 D)。
7. 消防員代表告訴當?shù)仉娨暸_什么?
A) 他們花了很長時間才清理完道路。
B) 清理這些灑出物是一個艱巨任務。
C) 幸運的是沒有乘客受傷。
D) 很難聯(lián)系上生產(chǎn)廠家。
詳解 B)。 新聞中提到， 一名消防員代表告訴當?shù)仉娨暸_，清理這些巧克力比清理大雪還難，由此推 斷，清理灑出的巧克力是一個艱巨的任務。因此答案為B)。
Section B
Directions: In this section,you will hear two long conversations.At the end ofeach conversation,you will hear four questions.Both the conersation 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.
Conversation One
M:Lisa,why did you pay for your meal with cash instead of the payment apps on your phone?
W:Well,Ive gone back to cash.I'm only using payment apps if that's the only option.(8)I'm tying to save money for a new phone,and I find that using cash rather than payment apps helps me to save.
M:But how?Money is money,isn't it?I don't think it matters whether you take it out to the bank and put it in your wallet or simply transfer from your bank account to the seller's bank account using an app.
W:No,I believe it does matter.It's a psychological phenomenon.(9)I believe we have less connection with the value of our money when we just tap the"Approve"buttons on our phones.
M:You might have a point.Since I stopped carrying cash around and started using my phone apps to pay,(10)may have developed a tendency to buy more small or non-essential items.
W:That's highly possible.Think about the amount of time we spend with our phones in our hands,and all the things we do with our phones.It sometimes seems that our phone is buying the product for us,not ourselves.
M:(11-1) So cashless payment affects our ability to budget?
W:I believe so.If we spend a hundred puan in cash,we realize that we don't have that hundred puan to spend on something else.But if we're spending electronically,we are less likely to make that mental calculation.
M:(11-2) I stopped using my credit card because I found I was spending excessively.Perhaps I should take the same approach of paying using my phone.
W:It's worth considering.
Questions 8 to 11 are based on the conversation you have just heard.
8.Why did the woman decide to go back to cash for payment?
A)She wanted to save for a new phone.
B)She found it much safer to use cash.
C)She could enjoy discounts with cash.
D)She had been cheated using phone apps.
9.What happens when people use apps for payment according to the woman?
A)They can save a lot more time and trouble.
B)They find it less difficult to make purchases.
C)They derive greater pleasure from buying things.
D)They are less aware of the value of their money.
10.What might the man tend to buy with payment apps?
A)More valuable items.
B)More non-essential things.
C)Everyday necessities.
D)Electronic devices.
11.What does the man think of electronic payment?
A)It can improve shopping efficiency.
B)It is altering the way of shopping.
C)It may lead to excessive spending.
D)It appeals more to younger people.
答案詳解
8. 為什么女士決定回到用現(xiàn)金支付的付款方式?
A) 她想攢錢買一部新手機。
B) 她發(fā)現(xiàn)用現(xiàn)金安全得多。
C) 她用現(xiàn)金支付可享受折扣。
D) 她用手機軟件時曾被騙。
詳解 A)。對話開頭，男士詢問女土為何不用手機支付而是用現(xiàn)金支付。女士說她想攢錢買一部新手機，她發(fā)現(xiàn)用現(xiàn)金付款能幫自己省錢。因此答案為A)。
9.女士認為，人們用手機支付會怎樣?
A) 他們能節(jié)省時間，避免麻煩。
B) 他們購物更加容易。
C) 他們從購物中得到更多樂趣。
D) 他們不太留意金錢的價值。
詳解 D)。 對話中，兩人對現(xiàn)金支付和手機支付持不同的看法，女士認為現(xiàn)金支付有助于省錢，男士 卻認為這兩種方式?jīng)]有區(qū)別。女士向男士解釋，這是一種心理現(xiàn)象，當我們只是在手機上點擊“同意支付”按鈕時，我們對金錢的價值就不那么在意了。因此答案為D)。
10. 男士傾向于用支付軟件買什么?
A) 更貴重的物品。
B) 更多非必需品。
C) 日常必需品。
D) 電子設備。
詳解 B) 。對話過程中，男士逐漸認同女士的觀點，他說自己開始使用手機上的應用程序支付之 后，可能已經(jīng)養(yǎng)成了購買更多的小物件或者非必需品的習慣。因此答案為B)。
11. 男士如何看待電子支付?
A) 它能夠提高購物效率。
B) 它正改變購物方式。
C) 它可能會導致過度消費。
D) 它對年輕人更有吸引力。
詳解 C)。 對話末尾，男士認為無現(xiàn)金支付會影響我們的預算能力，他之所以停用信用卡就是因為 發(fā)現(xiàn)這種支付方式會導致過度消費，他覺得自己也應該停止使用手機支付。也就是說，男士認為電子支付可能會導致過度消費。因此答案為C)。
Conversation Two
W:(12-1) Hello,Mr.Brown.I was expecting your call.My secretary told me you were having some problems with the wooden table.Is that right?
M:(12-2) No,no.The table is fine.The problem is the chairs.
W:Oh,the chairs.So what exactly is the issue?
M:Well,put simply,these are not the chairs my wife and I selected in your store last week.There must be some confusion with our order.
W:Oh,I see.I'm looking through my hles now,and I see that the delivery was this morning.Is that correct?
M:Yes.
W:(13) Do you mind describing the chairs that were delivered to your apartment,Mr.Brown?
M:Sure.These have a flat back with a rounded top and are very heavy.They are light brown and look kind of cheap.The ones we ordered were dark brown to match the table.
W: Right,of course.It says here you purchased the Arlington table and four Milano chairs.As you said,there must have been some confusion with the order.I'm terribly sorry.(14) We will send a van to collect those four and replace them with the Milano you purchased.Will tomorrow 9 a.m.be okay,Mr.Brown?
M:Yes,that would be great.Thank you.
W:Good.Did everything else you ordered from us arrive okay?
M:Yes,I think so.Let me check.The mirror and two paintings are here.The two coflee tables are also here.And the sofa…Yes,we haven't noticed anything else wrong or missing.But if we do, wewill certainly let you know.
W:Okay,great.(15)Once again,I'm sorry for the confusion and trouble caused.
Questions 12 to 15 are based on the conversation you have just hear.
12.Why did the man call the woman?
A)He wanted to order some wooden furniture.
B)He had to change the furniture delivery time.
C)He had a problem with the furniture delivered.
D)He wanted the furniture store to give him a refund.
13.What did the woman ask the man to do?
A)Send the furniture back to the store.
B)Describe the furniture he received.
C)Collect the furniture he ordered.
D)Buy another brand of furniture.
14.What did the woman promise to do for the man?
A)Correct their mistake.
B)Improve their service.
C)Apologize to his wife.
D)Give the money back.
15.What did the woman do at the end of the conversation?
A)She recommended a new style.
B)She offered some gift to the man.
C)She apologized to the man once more.
D)She checked all the items with the man.
答案詳解
12. 男士為什么給女士打電話?
A) 他想訂購一些木制家具。
B)他要更改家具的送貨時間。
C) 他收到的家具有問題。
D) 他想要家具店退款。
詳解 C)。對話開頭，女士說秘書告訴自己男士購買的桌子有問題。男士回答說有問題的不是桌子，而是椅子。由此可知，男士打電話的原因是他收到的椅子有問題。因此答案為C)。
13. 女士要求男士做什么?
A) 將家具退回家具店。
B) 描述一下他收到的家具。
C) 簽收他訂購的家具。
D) 購買另一品牌的家具。
詳解 B) 。男士告知女士是椅子有問題后，女士請男士描述送到他公寓的椅子的情況。因此答案為B)。
14. 女士承諾為男士做什么?
A) 改正他們的錯誤。
B) 改善他們的服務。
C) 向男士的妻子道款。
D) 退還錢款。
詳解 A)。對話中，女士意識到發(fā)錯貨后，告知男士會派一輛貨車上門退換，并詢問明天上午9點是否可以。由此可知，女士會糾正他們的錯誤，幫男士退換貨物。因此答案為A)。
15.對話末尾，女士做了什么?
A) 她推薦了一個新款。
B) 她給男士送了些禮物。
C) 她再次向男士道歉。
D) 她和男士一起檢查了所有物品。
詳解 C) 。對話末尾，女士再次因發(fā)錯貨向男士道歉。因此答案為C)。
Section C
Directions: In this section,you will hear three passages.At the end of each passage,you will hear three or four questions.Both the passage and the questions will bespoken only once.Afier 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.
Passage One
Do you have too much stuff?Are you,dare we say it"untidy"?(16) Say hello to a TV show called“Tidying Up with Marie Kondo”,a home improvement show based on her wildly popular book The Life-Changing Magic of Tidying Up. In the show,Marie Kondo acts as a tiny garbage fairy for messy people,visiting their houses to share the wisdom of the"KonMari"method.This method is simple in theory but can be endlessly complex in practice.(17) You divide all the stuff in your house all of it— into several categories,and then examine each item all of them to see if it sparks joy.If it does,you keep it. If it doesn't,you thank it and neatly discard it.So,is the TV show inspiring people to tidy up? Firsthand accounts seem to indicate a small wave of people bringing piles of donation bags to used goods stores.One store received thousands of bags of used possessions in one day.January is usually the stores'slow season for donations because it's cold and people don't want to bother,but not this January.People seemed determined to clean up their homes.(18) One used bookstore received a month's worth of books in donations in a week when a man gave over fifty boxes of booes from his home.It seems Marie's TV show is having a big impact after all.
Questions 16 to 18 are based on the passage you have just heard.
16.What is Marie Kondo's TV show about?
A)Reading books of wisdom.
B)Tidying up one's home.
C)Sharing with others.
D)Donating to charity.
17.What things can be kept in one's home according to Marie Kondo?
A)Things that make one happy.
B)Things that are becoming rare.
C)Things that occupy little space.
D)Things that cost a lot of money.
18.What do we learn about one used bookstore this January?
A)It joined the city's clean-up campaign.
B)It sold as many as fifty boxes of books.
C)It received an incredibly large number of donated books.
D)It did little business because of the unusual cold weather.
答案詳解
16.藤麻理惠的電視節(jié)目是關于什么的?
A) 閱讀智慧書籍。
B) 家居整理。
C) 與人分享。
D) 慈善捐贈。
詳解 B)。短文開頭問道，你是否有太多的東西，隨后指出看藤麻理惠的電視節(jié)目可能會有幫助，這是一個有關改善居家環(huán)境的節(jié)目。由此可推斷，該節(jié)目與整理家中的物品有關。因此答案為B)。
17. 藤麻理惠認為什么物品可以留在家中?
A) 讓人高興的物品。
B) 越來越稀有的物品。
C) 占空間少的物品。
D) 值錢的物品。
詳解 A) 。短文中提到，藤麻理惠有一個方法能讓家里變得井井有條，這個方法說起來容易做起來 難。具體的辦法是，把家里所有的物品分成幾類，看哪件物品能激發(fā)你的喜愛之情，如果喜愛，就留下。由此可知，藤麻理惠建議留下的是那些讓人高興的物品。因此答案為A)。
18.一家二手書店在一月份發(fā)生了什么事情?
A) 它參加了城市清潔運動。
B) 它賣掉多達50 箱圖書。
C) 它收到了大量的捐贈圖書。
D) 它因天氣異常寒冷而生意不佳。
詳解 C) 。 短文中提到，藤麻理惠的電視節(jié)目還是產(chǎn)生了很大的影響。 一月份天氣寒冷，通常是二手貨店鋪的捐贈淡季。但今年一月份，人們似乎決心行動起來收拾家里，有人整理出了50多箱書捐贈 給一家二手書店，該書店一周內(nèi)收到的捐書量相當于過去一個月的捐贈量。由此可知，該書店在一月 份收到了大量的捐贈圖書。因此答案為C)。
Passage Two
(19) At just 12 years old,Mike Hannon is making a difference in his community—one lunch at a time.“Mike's Lunches of Love"has fed more than 2000 of the town's most vulnerable residents.Mike delivers meals to the homeless. “It's like a way to give people joy,maybe spark something in them that can change them,"Mike told WBZ-TV.The mayor of Mike's town feels that Mike is a great community leader,especially in such times of so much negative news.While his father commented on how proud he was of his son,yet,Mike isn't looking for praise,but kindness in retun.(20) He hopes his acts of charity will influence others to spread positive actions in their own towns. Mike includes a handwritten message of joy on each bag.His message and star power has spread all over the country.To date,his online page to raise funds has brought in more than $44000 and counting,raising more than $17000 in just one day,with the help of many famous actors and others.(21) People from all over the country are sending special handcrafted bags to help the young man with his mission to help those in need. Many are hoping the simple act of kindness spreads.Mike is seen as hope for the future of the town, the country and the world.
Questions 19 to 21 are base on the passage you have just heard.
19.What does Mike Hannon do to help people in his town?
A)Give free meals to the homeless.
B)Provide shelter for the homeless.
C)Help the vulnerable to cook lunches.
D)Call for change in the local government.
20.What does Mike hope others will do?
A)Strengthen co-operation.
B)Promote understanding.
C)Win national support.
D)Follow his example.
21.How are people all over the country responding to what Mike is doing?
A)Spreading news of his deeds.
B)Writing him thank-you notes.
C)Following the example he sets.
D)Sending him hand-made bags.
答案詳解
19. 邁克·漢農(nóng)做了什么來幫助鎮(zhèn)上的人?
A) 為無家可歸的人免費送飯。
B) 為無家可歸的人提供居所。
C) 幫弱勢群體做午飯。
D) 號召當?shù)卣龀龈淖儭?/span>
詳解 A)。短文開頭提到，年僅12歲的邁克·漢農(nóng)正在為他的社區(qū)帶來改變———日一頓午餐，“邁克的愛心午餐”已為鎮(zhèn)上2000多名弱勢居民提供了幫助，他為無家可歸的人免費送飯。因此答案為A)。
20.邁克希望其他人做些什么?
A) 加強合作。
B) 增進理解。
C) 贏得國家的支持。
D) 效仿他的做法。
詳解 D)。短文中提到，邁克希望自己的善舉可以影響其他人，在他們自己的城鎮(zhèn)傳播善業(yè)。因此答案為 D)。
21.全國的人們對邁克所做的事情有何反應?
A) 傳播他的事跡。
B) 給他寫感謝信。
C)效仿他的做法。
D) 送他手工制作的包。
詳解 D) 。短文最后提到，邁克的善舉影響了很多人，全國各地的人們都給他送來了特制的手工 包，以幫助這個以助人為己任的年輕人。因此答案為D)。
Passage Three
(22)In a recent study carried out by psychologists on the disruptive effects of smartphones,two groups of college students were given word search puzzles.The first group was told to complete the puzzles with its participants'smartphones in their Iine of sight.The second group,however,was told that the phones would interfere with the equipment in the experiment,and would need to be moved away from the testing area.Midway through the second group's solving of the puzzles,the experimenter called one of the phones and let it ring for a while before hanging up.(23)Many of the students in that group were unable to focus from then an,becoming anxious and performing more poorly than the first goup.
Use of electronics has also been known to lead to a decline in human interactions.Rather than having real-life conversations,many express emotions and engage in deep conversations through social media sites.Many students use their phones and computers during class for non-academic activities, which leads to poor grades.(24)Perhaps the most dramatic impact is the reduction in the amount of sleep,which leads to poor health and weight gain.
(25)Technology is a great tool;however,it's important to recognize its downsides.Lack of sleep, reduction of productivity and weight gain are only a few.If we're not careful about all these minor problems right now,the effect on the future generation is going to be much bigser.
Questions 22 to 25 are baset on the passage you have just heard.
22.What were the college students in both groups requtred to do in the study?
A)To solve word search puzzles.
B)To send smartphone messages.
C)To test their eyesight using a phone app.
D)To install some audio equipment in a lab.
23.What do we learn about many of the students in the second test group after the phone rang?
A)They could not go on until the ringing stopped.
B)They could no longer concentrate on their task.
C)They grabbed the phone and called back right away.
D)They asked their experimenter to hang up the phone.
24.According to the passage,what is the most dramatic impact of smartphone use?
A)A rise in emotional problems.
B)A decline in sports activities.
C)A reduction in the amount of sleep.
D)A decline in academic performance.
25.What does the speaker suggest people do?
A)Protect the eyesight of the younger generation.
B)Take effective measures to raise productivity.
C)Realize the disruptive effects of technology.
D)Ensure they have sufficient sleep every day.
答案詳解
22.在這項研究中，兩組大學生被要求做什么?
A) 做字謎游戲。
B) 發(fā)手機信息。
C) 用手機軟件測視力。
D) 在一個實驗室安裝音頻設備。
詳解 A)。短文開頭提到，在心理學家最近進行的一項關于智能手機破壞性影響的研究中，兩組大學生被要求做字謎游戲。因此答案為A)。
23. 關于第二組的許多受試學生在電話鈴響后的表現(xiàn)，我們了解到什么?
A) 鈴聲結束后他們才能繼續(xù)(字謎游戲)。
B) 他們無法繼續(xù)專注地完成任務。
C) 他們立刻拿起手機，回撥電話。
D) 他們要求實驗人員掛斷電話。
詳解 B)。短文中提到，在第二組學生解字謎的過程中，實驗人員撥打了一位學生的手機，讓它響了一會才掛斷。之后，第二組的許多學生無法集中注意力，他們變得焦慮，表現(xiàn)得比第一組更差。因此答案為B)。
24. 根據(jù)短文內(nèi)容，使用智能手機最大的影響是什么?
A) 情感問題增多。
B) 體育運動減少。
C) 睡眠減少。
D) 學習成績退步。
詳解 C)。 短文提到，智能手機會帶來各種負面影響，如人際交往和學業(yè)問題，但最大的影響是睡 眠時長的縮短，這會導致健康狀況不佳和肥胖問題。因此答案為C)。
25.講話者建議人們做什么?
A) 保護年輕一代的視力。
B) 采取有效措施提高生產(chǎn)力。
C) 認識到科技的破壞作用。
D) 確保每天有充足的睡眠。
詳解 C) 。短文最后提到，科技是個偉大的工具，但認識到它的負面作用是很重要的，睡眠的減少、 生產(chǎn)力的降低、肥胖等問題僅僅是冰山一角。如果我們不注意這些小問題，對后代的影響將會更大。由此可知，講話者建議人們要認識到技術的破壞性影響。因此答案為C)。
