b)theycan'taffordtogotothetutorialcss

c)theirparentsdon'thaveagoodgene

d)thesestudentsdevelopreslowlyintheteorallobe

24a)froto5b)froto22c)fro0to40d)fro0to40

25a)youngpeoplefrooorfaliescan'tarewithyoungpeoplefroichfalies

b)slowdevelopntofthebrainybeoneofthecausesforthisdifference

c)thestudentsdidnotdowellintheexaecausetheywerenotfullyprepared

d)aredwithboys,girlshavehighergrades

原文与答案解析

?sectiona

newsreportone

sincethestartofthedeadlyaidsepidecinthe1980s,scientistshavebeenworkingtowardsacurenow,theyybeclosetofindingoneresearchershavedevelopedathodtocuttheviraldnafroperson'sinfectedcellsitiscalledcrisprcas9anditansthepersonuldbevirus-freednaisasubstancethatcarriesgeicrtioninthecellsofanilsandpntsthisgene-editingtookpceinascientificb,buthasnotbeentestedonhunsyet"it'sabigstep,"saidkalkhalili,phdheisaleadresearcherandchairatthedepartntofneuroscienceatteleuniversityinphidelphia,pennsylvaniaheandhisteaadethedisverybutretestshavetobedooknowifitwillbeacureforthellionsofpatientsinfectedwiththehivvirus,whichcausesaids

1whathaveresearchersfoundoutabouttheaids

答案：b

点睛解析：在文中我们可以听到，researchershavedevelopedathodtocuttheviraldnafroperson'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。

2whatdowelearnaboutthisgene-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kalkhalili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"isacityofanilstheviestarsabunnyrabbitpoliceofficerandafoxcrinalwhoteaptofindassingotterheisangseveranilsthathavesuddenlydisearedfrohecityactinnifergoodwinprovidedthevoiceofofficerjudyhoppsjustinbatenisnick,thenartistcriticshavestronglypraisedzootopiaforitssharphurandstrongssagethefilxploresracisndotherintoleranceinitsportrayalofretionsbetweentwokindsofanilsinthecityjaredbushandphiljohnstonwrotezootopiatheytoldreportersthatitstartedoutasaspyviesetinseveraldifferentanilworldsbuttheyfoundthealworldespeciallyinterestingsotheychangedthestory

3whatisthenewsstoryabout

答案：c

点睛解析：在新闻开头部分我们可以听到thevie，所以选c。

4whatdothecriticsthinkofzootopia

答案：a

点睛解析：在这段新闻中我们可以听到，criticshavestronglypraisedzootopiaforitssharphurandstrongssage“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

socialdiakeepyoungadultsawake

anewstudyhasfoundthatsocialdiauldbeaffectingthesleepofyoungadultsthestudyisaprojectofresearchersattheuniversityofpittsburgh'sschoolofdiciheyfoundthatyoungpeoplewhooftenusesocialdiaarerelikelytosufferfroleepdisordersthanthosewhousesocialdialesstheresearcherssaydoctorsshouldaskyoungadultsabouttheiruseofsocialdiawhentreatingsleepissues"thisisoneofthefirstpiecesofevidencethatsocialdiausereallycaniactyoursleep,"saidjessicaclevensonsheisapostdoctoralresearcherintheuniversity'sdepartntofpsychiatryshewastheleadauthorofareportonthestudytheresearcherssetouttoexahennectionbetweensocialdiauseandsleepangyoungadultslevensonnotedthattheseyoungadultsarepossiblythefirst"generationtogrowupwithsocialdia"theresearcherswantedtofindouthowoftenyoungpeopleusedsocialdiasiteslikefacebook,twitter,histograsnapshot,creditandtulerforthestudy,theygavequestionnairestonearly1,800adults,aged19to32

5whatisaffectingyoungpeople'ssleepquality,aordingtothestudy

答案：c

点睛解析：开头第一句话我们可以听到anewstudyhasfoundthatsocialdiauldbeaffectingthesleepofyoungadults“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。

6whichagegroupistheinpartofthequestionnaires

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。

7whatcanwelearnfrohenews

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

?nversationone

wvid,youhavelivedinbothtokyoandnewyork,andyoustknowthetwocitiesverywellcanyoutellsothingaboutthesituationofthelocalresidents

ofurse!theresidentsofnewyorkareveryfriendlyifyouarelostinthesubwaystation,ordonotknowwhichbustotake,whenyouasksoone,evenaspeopleseeerybusy,theyarealsoveryhytogiveyouahandiftheydon'tknowwhichbusyoushouldtake,theywilltellyoudirectly

wlythis

whenyougointothestore,youwillfindthattheshopassistantlikestochatwithyoutheyareveryinterestedinyou;theywillwanttoknowwhereyouarefrowhatyouwanttobuy,andwhyyouwanttobuythiskindofstuff