听力模拟题(3)

听力模拟题(3)

SectionA

Directions:Inthissection,youwillhearthreenewsreports.Attheendofeachnewsreport,youwillheartwoorthreequestions.Boththenewsreportandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.

Questions1and2arebasedonthenewsreportyouhavejustheard.

1.A)ThewaytocompletelycureAIDS.

B)ThewaytocuttheviralDNAfromaperson'sinfectedcells.

C)AIDScouldn'tbecured.

D)ThewaytocurbAIDSepidemic.

2.A)Ithasbeentestedinclinicaltrials.

B)IthasbeenproventobeabletocuremillionsofpatientswithAIDS.

C)IthasbeendiscoveredbyKamelKhalilihimself.

D)Itmeansthepersoncouldbevirus-free.

Questions3and4arebasedonthenewsreportyouhavejustheard.

3.A)Asong.B)Amagazine.C)Ananimatedfilm.D)Adrama.

4.A)Fullofhumor.B)Meaningless.C)Notworthwatching.D)Willbreakrecords.

Questions5to7arebasedonthenewsreportyouhavejustheard.

5.A)Computergames.B)Heavyworkload.C)Socialmedia.D)SurfingtheInternet.

6.A)Aged10to15.B)Aged13to18.C)Aged40to60.D)Aged20to30.

7.A)Youngpeoplewhooftenusesocialmediaareeasiertofallsleep.

B)Youngpeoplearemorelikelytosufferfromthesleepdisorders.

C)Socialmediashouldbebanned.

D)Socialmediaisthebestwayforyoungpeopletorelievestress.

SectionB

Directions:Inthissection,youwillheartwolongconversations.Attheendofeachconversation,youwillhearfourquestions.Boththeconversationandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.

Questions8to11arebasedontheconversationyouhavejustheard.

8.A)TrafficinNewYorkandJapan.B)ResidentsinNewYorkandJapan.

C)RailwaysinNewYorkandJapan.D)FoodinNewYorkandJapan.

9.A)Ifyouneedhelpinthesubwaystation,theywillbehappytohelpyou.

B)They'llgiveyouawrongdirectioniftheydon'tknow.

C)Iftheyarebusy,theywillnotbewillingtoshowyoutheway.

D)They'llsendyoutoyourdestination.

10.A)Japaneseresidentspaymoreattentiontoyourpersonallife.

B)ThetraditionalcultureofNewYorkismoreabundantthanthatofJapan.

C)NewYorkresidentsprefertoaskotherpeople'sprivateaffairs.

D)Japanesepeopledon'tliketobedisturbed.

11.A)Becausehisfamiliesarethere.

B)BecauseheprefersNewYork'sfashionculture.

C)BecausetherearealotofauthenticforeignfoodsinNewYork.

D)BecausehiscareerwillgetbetterdevelopmentinNewYork.

Questions12to15arebasedontheconversationyouhavejustheard.

12.A)Becausehelosthiswallet.

B)Becausehecouldn'tcommunicatewiththebankclerk.

C)Becausehisbankcardwasswallowedup.

D)Becausehisflighthasbeenwronglybookedup.

13.A)Hewantedtoremitabroad.

B)Hewantedtoapplyforabankcard.

C)Hewantedtotransfermoneytothetravelagency.

D)Hewantedtoreportthelossofhisbankcard.

14.A)Hestayedinthebankforaboutfiveminutes.

B)Theclerkdidn'tagreehisbanktransfer.

C)Thebankclerkhelpedhimfillouttheform.

D)Hetooktheformoutandwantedtofindsomeonetohelphim.

15.A)Hewouldaskthewomantohelphim.

B)Hewouldcallthetravelagencytopayinanotherway.

C)HewoulddecidetorefundhisflighttoAustralia.

D)Hewouldcallhisfriend.

SectionC

Directions:Inthissection,youwillhearthreepassages.Attheendofeachpassage,youwillhearsomequestions.Boththepassageandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.

PassageOne

Questions16to18arebasedonthepassageyouhavejustheard.

16.A)AmemorialeventfortheGrandCentralStationinNewYork.

B)AnimportantfestivalinNewYork.

C)AmemorialeventinWashington.

D)Thevictoryofthenationalteam.

17.A)Sincethestationwasbuilt,ithaschangedalot.

B)Thisstationhasneverbeenseeninthefilm.

C)Thisstationwas100yearsoldlastyear.

D)Thestationdidnotusetheprincipleofmirrorreflection.

18.A)Heisaphilosopher.

B)Heinsistedonvisitingthestationfor30years.

C)Hedoesn'tthinkthedesignofthisstationreasonable.

D)Hedecidednottowatchthestationlater.

PassageTwo

Questions19to21arebasedonthepassageyouhavejustheard.

19.A)Aggressivepeoplehavewiderfaces.

B)Howtojudgeaperson'scharacter.

C)Howpeopledealwithothers.

D)Thecharactersofpeoplewithwiderfaces.

20.A)MenwithalargefacialWHRactlessaggressivelythanmenwithnarrowfaces.

B)Thevolunteers'estimatesmatchwiththeWHRofthefaces.

C)Theaspectratio(WHR)ofthefaceisobtainedbymeasuringthedistancebetweenthelefteyeandtherighteye.

D)Thewiderthefaceis,thelowertheoffensiveratingis.

21.A)Thesubtledifferencesinfacialshapewillnotaffectthepersonalityjudgment.

B)Amanwithawidefacehasnoanyaggression.

C)Subtledifferencesinfacialshapecanalsoleadpeopletodealwithothers.

D)Psychologistsadvisepeoplenottointeractwithpeoplewhohaveawideface.

PassageThree

Questions22to25arebasedonthepassageyouhavejustheard.

22.A)Childrenfrompoorfamilieshavebettergrades.

B)Childrenwithhighersocioeconomicstatusarenotgoodatacademicperformance.

C)Childrenfrompoorfamilieshadmoredifficultyintheirstudies.

D)Thechildrenfrompoorfamilieswillcatchupwithotherchildrenthroughhardworking.

23.A)Duetothelackofnutrition,thesechildren'sbrainsdevelopslowly.

B)Theycan'taffordtogotothetutorialclass.

C)Theirparentsdon'thaveagoodgene.

D)Thesestudentsdevelopmoreslowlyinthetemporallobe.

24.A)From0to5.B)From4to22.C)From20to40.D)From30to40.

25.A)Youngpeoplefrompoorfamiliescan'tcomparewithyoungpeoplefromrichfamilies.

B)Slowdevelopmentofthebrainmaybeoneofthecausesforthisdifference.

C)Thestudentsdidnotdowellintheexambecausetheywerenotfullyprepared.

D)Comparedwithboys,girlshavehighergrades.

原文与答案解析

SectionA

NewsReportOne

SincethestartofthedeadlyAIDSepidemicinthe1980s,scientistshavebeenworkingtowardsacure.Now,theymaybeclosetofindingone.ResearchershavedevelopedamethodtocuttheviralDNAfromaperson'sinfectedcells.ItiscalledCRISPR/Cas9anditmeansthepersoncouldbevirus-free.DNAisasubstancethatcarriesgeneticinformationinthecellsofanimalsandplants.Thisgene-editingtookplaceinascientificlab,buthasnotbeentestedonhumansyet."It'sabigstep,"saidKamelKhalili,Ph.D.HeisaleadresearcherandchairattheDepartmentofNeuroscienceatTempleUniversityinPhiladelphia,Pennsylvania.Heandhisteammadethediscovery.ButmoretestshavetobedonetoknowifitwillbeacureforthemillionsofpatientsinfectedwiththeHIVvirus,whichcausesAIDS.

1.WhathaveresearchersfoundoutabouttheAIDS?

答案：B

点睛解析：在文中我们可以听到，ResearchershavedevelopedamethodtocuttheviralDNAfromaperson'sinfectedcells.“研究人员已经找到了一种从感染细胞中剔除病毒DNA的办法。”选项B是原文复现，所以选B。

2.Whatdowelearnaboutthisgene-editing?

答案：D

点睛解析：A“它已经进行了临床测试”、B“它已经被证实能够治愈数百万艾滋病患者”和C“它是由KamelKhalili自己发现的”与原文不符，所以排除；D“它意味着细胞可以不再受病毒感染”与原文表达相一致，故为答案。

NewsReportTwo

"Zootopia"isacityofanimals.Themoviestarsabunnyrabbitpoliceofficerandafoxcriminalwhoteamuptofindamissingotter.Heisamongseveralanimalsthathavesuddenlydisappearedfromthecity.ActorGinnifeGoodwinprovidedthevoiceofofficerJudyHopps.JustinBatemanisNick,theconartist.CriticshavestronglypraisedZootopiaforitssharphumorandstrongmessage.Thefilmexploresracismandotherintoleranceinitsportrayalofrelationsbetweentwokindsofanimalsinthecity.JaredBushandPhilJohnstonwroteZootopia.Theytoldreportersthatitstartedoutasaspymoviesetinseveraldifferentanimalworlds.Buttheyfoundthemammalworldespeciallyinteresting.Sotheychangedthestory.

3.Whatisthenewsstoryabout?

答案：C

点睛解析：在新闻开头部分我们可以听到themovie，所以选C。

4.WhatdothecriticsthinkofZootopia?

答案：A

点睛解析：在这段新闻中我们可以听到，CriticshavestronglypraisedZootopiaforitssharphumorandstrongmessage.“影评员们对它的十足幽默感和涵盖的巨大信息量赞不绝口。”由此可知A“充满了幽默”符合文意。

NewsReportThree

SocialMediaKeepYoungAdultsAwake

Anewstudyhasfoundthatsocialmediacouldbeaffectingthesleepofyoungadults.ThestudyisaprojectofresearchersattheUniversityofPittsburgh'sSchoolofMedicine.Theyfoundthatyoungpeoplewhooftenusesocialmediaaremorelikelytosufferfromsleepdisordersthanthosewhousesocialmedialess.Theresearcherssaydoctorsshouldaskyoungadultsabouttheiruseofsocialmediawhentreatingsleepissues."Thisisoneofthefirstpiecesofevidencethatsocialmediausereallycanimpactyoursleep,"saidJessicaC.Levenson.Sheisapostdoctoralresearcherintheuniversity'sDepartmentofPsychiatry.Shewastheleadauthorofareportonthestudy.Theresearcherssetouttoexaminetheconnectionbetweensocialmediauseandsleepamongyoungadults.Levensonnotedthattheseyoungadultsarepossiblythefirst"generationtogrowupwithsocialmedia".TheresearcherswantedtofindouthowoftenyoungpeopleusedsocialmediasiteslikeFacebook,Twitter,Histogram,Snapshot,CreditandTumbler.Forthestudy,theygavequestionnairestonearly1,800adults,aged19to32.

5.Whatisaffectingyoungpeople'ssleepquality,accordingtothestudy?

答案：C

点睛解析：开头第一句话我们可以听到Anewstudyhasfoundthatsocialmediacouldbeaffectingthesleepofyoungadults.“最新一项研究表明，社交媒体可能会影响年轻人的睡眠质量。”由此可知，C为答案。

6.Whichagegroupisthemainpartofthequestionnaires?

答案：D

点睛解析：该题答案比较明显，要注意听数字。文中最后一句话提到Forthestudy,theygavequestionnairestonearly1,800adults,aged19to32.“他们挑选了1800名年龄在19—32岁的人进行问卷调查。”故D为答案。

7.Whatcanwelearnfromthenews?

答案：B

点睛解析：A“经常使用社交媒体的年轻人更容易入睡”与文意相反；C“社交媒体应该被禁止”和D“社交媒体是年轻人缓解压力的最佳方式”在文中并没有提及；年轻人是社交媒体的主要使用者，而且文中一开始就提到，社交媒体影响年轻人的睡眠质量，所以B“年轻人更容易患睡眠障碍”符合文意。

SectionB

ConversationOne

W:David,youhavelivedinbothTokyoandNewYork,andyoumustknowthetwocitiesverywell.Canyoutellmesomethingaboutthesituationofthelocalresidents?

M:Ofcourse!TheresidentsofNewYorkareveryfriendly.Ifyouarelostinthesubwaystation,ordonotknowwhichbustotake,whenyouasksomeone,evenaspeopleseemverybusy,theyarealsoveryhappytogiveyouahand.Iftheydon'tknowwhichbusyoushouldtake,theywilltellyoudirectly.

W:Onlythis?

M:Whenyougointothestore,youwillfindthattheshopassistantlikestochatwithyou.Theyareveryinterestedinyou;theywillwanttoknowwhereyouarefrom,whatyouwanttobuy,andwhyyouwanttobuythiskindofstuff.

W:SowhatabouttheresidentsofTokyo?

M:Ifyouneedhelpwhenyouareinasubwaystationorarailwaystation,thestaffofthesubwayandrailwaywillhelpyou.Theymaytellyoutotakethelineorhelpyoureachyourdestination.Theshopassistantwillhelpyoufindwhatyouneed,butbecauseofculturaldifferences,theclerkwillnotexploreyourpersonallifeliketheNewYorkstaff.

W:So,ifyouhavetochooseonetoliveforlong,whatwoulditbe?

M:Thisisadifficultquestion.IwouldliketoliveinNewYork,becauseithasmoreauthenticforeigncuisinesthanJapan.

8.Whataretheymainlytalkingabout?

答案：B

点睛解析：在对话开头部分，女士问男士，能不能告诉她一些关于这两个城市的居民的情况。所以选B。

9.Accordingtotheman,whatabouttheresidentsinNewYork?

答案：A

点睛解析：在对话中，男士提到，纽约的市民很友好，即使在忙别的事情，他们也会很愿意帮助你的，所以选A。B“如果他们不知道的话，就会给你指一个错误的方向”，对话中男士说的是，如果他们不知道，他们会直接告诉你的，所以排除B；C“如果他们很忙，他们就不愿意为你指路”与文意不符；D“他们会把你送到目的地”，内容混淆，这里指的是日本的居民，而不是纽约的居民。

10.What'sthedifferencebetweentheresidentsinthetwocities?

答案：C

点睛解析：对话中，男士说，纽约居民喜欢打探别人的个人生活，而日本居民则不会像纽约居民那样，由此可知C为正确答案。A“日本居民更关注你的个人生活”与文意不符；B“纽约的传统文化比日本更丰富”和D“日本居民不喜欢被打扰”在对话中均没有提及，所以排除。

11.WhywouldthemanliketoliveinNewYorkforlong?

答案：C

点睛解析：选项A“因为他的家人在那里”B“因为他更喜欢纽约的时尚文化”和D“因为他的事业在纽约会有更好的发展”在对话中均没有提及，所以排除；对话最后一句提到，男士说他会选择纽约，因为纽约的外国食物更地道。所以选C“因为纽约有很多地道的外国食物”。

ConversationTwo

M:Goodafternoon,Joe.

W:Goodafternoon.Youdon'tlookveryhappy.What'sgoingon?

M:Well,I'malittledepressed.

W:Why?

M:Iwenttothebanktoday,butmyJapanesewasnotverygood,andthebankclerkcouldnotspeakEnglish,sowedidn'thaveagoodcommunication.

W:Whatwereyougoingtodo?

M:IbookedaflighttoAustralia,andIwasgoingtoremitthemoneytothetravelagency,buttheyonlyacceptedoneformofpayment.Theyletmetransferthemoneyfromthebank.

W:Well.

M:Ihadapostofficeaccount,butIcouldn'tmakeitthroughthepostoffice,soIwenttothebank,tryingtoexplaintothestaffthatIwantedtodoabanktransfer.

W:Andthen?

M:BecauseIamaforeigner,IthinkshethoughtIwantedtogotoforeignremittances,soshesaid,"Sorry,youcan'tdothishere."AndthenIexplained,"No,IjustwanttotransfermoneywithinJapan".

W:Didsheagree?

M:Yes.Shewantedmetofillinaformfirst,butIcouldn'treadit.

W:Whycouldn'tyouunderstandit?

M:BecausethatformwasinJapanese.

W:Well,whathappenedafterwards?

M:ItooktheformoutandIwantedtofindafriendtohelp.

W:Thatmeansyouhaven'tsolvedtheproblemyet,right?

M:Well,ItoldtheclerkbeforeIleftthebank.

W:OK,letmehelpyou.IjustcanspeakJapanese.

M:Really?That'sgreat!

12.Whyisthemansodepressed?

答案：B

点睛解析：对话中，女士发现男士不太高兴，问男士出了什么事，男士说他有点沮丧，女士问为什么，男士说，他今天去银行，因为他日语不好，银行职员又不会说英语，所以无法和银行职员沟通。由此可知，选B。

13.Whatdidthemangotodointhebank?

答案：C

点睛解析：在对话中，女士问男士去银行做什么，男士说，他订了一张飞澳大利亚的机票，要把钱汇给旅行社，那家旅行社只接受一种付款方式。所以C“他想给旅行社转账”符合文意。选项A中的remit意为“汇款”。remitabroad“向国外汇款”。

14.Whatdoweknowabouttheman?

答案：D

点睛解析：在对话中我们可以听到，银行职员最后同意男士转账，但是需要填表，所以排除B；银行职员并没有帮助男士填表，所以排除C；A“男士在银行里待了大约5分钟”在对话中没有提到，所以排除A；对话结尾提到男士将表带了出来，准备找朋友帮忙，故D为答案。

15.Whatisthemangoingtodoaccordingtotheconversation?

答案：A

点睛解析：在对话结尾处我们可以听到，女士说“让我帮你吧，我会讲日语”，男士说：“真的吗？太好了！”由此可知，男士接下来会请女士帮忙。所以选A。

SectionC

PassageOne

AbuildinginNewYorkhasbeen101yearsoldthisyear.PeopleplantoholdamemorialeventfortheGrandCentralStationinNewYork,knownasthe"centralstation".Sinceitsestablishmentin1913,thebuildinghasremainedalmostthesame.About750,000passengerspassthroughGrandCentraleveryday,includingthevisitorstothestationandcustomerstothestores.Butmostofthepeoplearepassengersinandoutofthestation.NewYorkCentralStationisthelargestrailwaystationintheworldwith67railwaytracksundertheground.Insidethestation,therearelargearchedwindows,inlaidwithgemsofallsidesandtheticketwindow.GrandCentralhasbeenshowninmanymoviesformanyyears.DanBruckerhasworkedforthehigh-speedtransportmanagementdepartmentatGrandCentralfor30years.Eventhoughhehasstayedhereforsomanyyears,hisloveforthestationhasnotbeenreduced.AccordingtoBrucker,thisstationisthebuildinginthetwentiethcentury.Hurriedshuttlepeopleinthestationdidnotpayattentiontotheheadmagnificentceiling-skydome,thepaintedpatternandtheskyisexactlytheopposite.Infact,thisistheinnovativeideasofmirrorreflection.JustinFerate,ahistorian,hasvisitedthestationfor30consecutiveyears.Hesaysthatthestationwasdesignedtomaketravelapleasureandhealsobelievesthatthestationwasdesignedforthemajorityofvisitors.

16.Whatarepeoplegoingtocelebratefor?

答案：A

点睛解析：该题答案比较明显，在短文开头部分我们就可以听到PeopleplantoholdamemorialeventfortheGrandCentralStationinNewYork,knownasthecentralstation.所以选A。

17.Whatcanwelearnaboutthestation?

答案：C

点睛解析：该题为细节题。选项A“这个车站自建立以来，有了很多的变化”、B“这个车站从没有在电影中出现过”和D“这个车站没有利用镜面反射原理”都与原文相反，所以排除；文章第一句话就提到，这个车站今年101岁了，所以它去年100岁，选C。

18.WhatdoweknowaboutJustinFerate?

答案：B

点睛解析：在文中我们可以听到，他是一个历史学家，而不是哲学家，所以排除A；他认为这个车站设计得很人性化，让人愉快，而不是不合理，所以排除C；文中并没有提到他决定以后不再观察这个车站了，所以排除D。B“他坚持30年观察这个车站”为答案。

PassageTwo

Accordingtotheresearchers,aggressivepeopleareeasilyrecognized,becausetheyhaveinstantlyrecognizablewidefaces.Whensomeoneisstandinginfrontofyou,justlookatthestructureofhisfacequicklyanditmaybeenoughtojudgehisaggression.ThisisfoundinastudypublishedinTheJournalofPsychologicalScience.Theaspectratio(WHR)ofthefaceisobtainedbymeasuringthedistancebetweentheleftandrightcheeksandthedistancebetweentheupperlipandthemid-brow.PsychologistsattheBrockUniversityintheUnitedStateshavedecidedtocarryoutfurtherresearchandfoundthatmenwithalargefacialWHRactmoreaggressivelythanmenwithnarrowfaces.Theresearchersaskedvolunteerstolookatphotosofdifferentmen'sfaces,andpreviousstudieshaveanalyzedthesemen'saggressivebehavior.Afterthat,thevolunteersratedhowaggressivetheythoughteachpersonwasonascaleofonetoseven.Theybrowsedeachphotofortwosecondslong,and0.039secondshort.Theresultsofthestudyshowedthatthevolunteershadahighdegreeofagreementwiththeactualsituation,eveniftheyonlytookalookatthepicture.Andthevolunteers'estimatesarealsoinlinewiththeWHRoffaces.Thewiderthefaceis,thehighertheoffensiveratingis.Psychologistsconcludedthatsubtledifferencesinfacialshapemayaffectindividualjudgment,thusleadingpeopletodealwithothers.

19.Whatisthestudyabout?

答案：A

点睛解析：在短文开头部分我们就可以听到Accordingtotheresearchers,aggressivepeopleareeasytoberecognized,becausetheyhaveinstantlyrecognizablewidefaces.“研究人员称，具有攻击性的人很容易被认出，因为他们长着一眼就能认出的宽脸盘。”言外之意就是，脸部较宽的人更具侵略性。所以选A。

20.Whatdowelearnabouttheaspectratio(WHR)ofaface?

答案：B

点睛解析：该题考查细节题，考生应注意听一些细节。脸部宽高比值较大的男性比脸窄的男性更具侵略性，而不是侵略性小，所以排除A；根据文章第四句话排除C选项；脸部越宽，进攻性评级越高，而不是越低，所以排除D。根据文章倒数第三句可知B选项符合文意。所以选B。

21.Whatdoweknowaccordingtopsychologists?

答案：C

点睛解析：该题可用排除法。排除A“脸型的细微差别不会影响个性判断”；B“脸型宽的人没有任何攻击性”与原文不符；D“心理学家建议人们不要与脸型宽的人交往”在文中没有提到。在短文结尾处提到，“心理学家总结称，脸型的细微差别可能会影响个性判断，从而引导人们如何应付他人”，由此可知C为正确答案。

PassageThree

Studieshaveshownthatchildrenfrompoorfamilieshadmoredifficultyintheirstudieswhencomparedwithotherboysandgirls.Childrenwithhighersocialandeconomicstatusseemtobemorepreparedandperformbetterintheiracademictests.Now,researchersintheUnitedStatesmayhavediscoveredthephysiologicalcausesofthisdifference.Theyfounddifferencesinthebrainsofstudentswithlowscoresonstandardizedtests.Comparedwithotherchildren,thesestudentshavelessgraymatterintheirbrain,andtheirtemporallobesdevelopmoreslowly.ThesefindingsarepublishedinthejournalPediatrics.ResearcherBarbaraWolfsaidthetemporallobeandgraymatterareimportantareasofthebrain.Sheisaprofessorofeconomics,populationhealthandpublicaffairsatUniversityofWisconsinatMadison.Theseareasofthebrainareimportant.Theycancontinuetodevelopinadolescenceor20yearsold;itiscrucialfortheimplementationofthefunction.Researchersstudiedbrainimagesofnearly400childrenandyoungpeople,andtheyoungestwasonly4yearsold,theoldest22.Theresearchersfoundalinkbetweentheeconomicandsocialstatusofthesepeopleandtheirtestresults.Ingeneral,testscoresofyoungpeoplefrompoorfamiliesarethreetofourpointslowerthantheexpectationsofthisagegroup.Thescoresofthepooreststudentswere8to10lowerthanthatofthedevelopmentalnorms.

22.Whatdoestheresearchshow,accordingtothepassage?

答案：C

点睛解析：文章第一句话就提到，与其他男孩、女孩相比，来自贫困家庭的孩子在学业上会遇到更多困难。由此可知选C。

23.Whatisthecauseofthisdifference,accordingtothispassage?

答案：D

点睛解析：文章中提到，美国研究者可能已经发现了导致这一差异的生理原因，与其他孩子相比，这些学生大脑中的灰质更少，他们的颞叶发育得更慢，所以D“他们的颞叶发育得更慢”符合文意。选项A“由于营养不足，他们的大脑发育缓慢”、B“他们承担不起上辅导课的费用”和C“他们的父母没有好的基因”在文中均没有提及，所以排除。

24.Whatistheagegroupoftheresearchsubject?

答案：B

点睛解析：在短文中我们可以听到Researchersstudiedbrainimagesofnearly400childrenandyoungpeople,andtheyoungestwasonly4yearsold,theoldest22.“研究人员研究了近400名儿童和年轻人的大脑图像，最年轻的被研究者只有4岁，最大的22岁。”所以选B。

25.Whatcanwelearnfromthispassage?

答案：B

点睛解析：A“来自贫困家庭的年轻人与来自富裕家庭的孩子无法相比”与原文不符，可排除；C“学生在考试中没有考好是因为没有准备充分”和D“与男孩相比，女孩的成绩较高”在文中并没有提及；B“大脑发育缓慢可能是这一差异的原因之一”符合文意，所以选B。