大学英语六级三套真题+答案解析.docx

大学英语六级三套真题+答案解析.docx

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大学英语六级三套真题+答案解析

18、大多数生物都是由多细胞组成的，但也有一些生物，它们只有一个细胞，称为单细胞生物。

如草履虫、变形虫、细菌等。

2、在加热的过程中，蜡烛发生了什么变化？

（P29）

答：

如蚂蚁、蝗虫、蚕蛾、蚜虫、蟋蟀、蝉、蝴蝶、蜜蜂、七星瓢虫等。

7、将铁钉的一部分浸入硫酸铜溶液中，有什么现象？

过一会儿，取出铁钉，我们又观察到了什么现象？

（P36）

答：

我们在水中可发现变形虫、鼓藻、草履虫、船形硅藻等。

19、细胞也是生物最基本的功能单位，生物的呼吸、消化、排泄、生长、发育、繁殖、遗传等生命活动都是通过细胞进行的。

第一单元微小世界

17、大熊座的明显标志就是我们熟悉的由七颗亮星组成的北斗七星，

3、米饭里面的主要成分是淀粉。

米饭淀粉遇到碘酒，颜色变成蓝色，这种蓝色物质是一种不同于米饭和淀粉的新物质。

缺点：

不仅消耗大量电能，留下残余物，如果控制不好，还会产生有毒物质，造成二次污染。

2017年6月大学英语六级考试真题（第1套）

PartⅠWriting（30minutes）

Directions:

Supposeyouareaskedtogiveadviceonwhethertoattendavocationalcollegeorauniversity,writeanessaytostateyouropinion.Youarerequiredtowriteatleast150wordsbutnomorethan200words.

PartⅡListeningComprehension（30minutes）

SectionA

Directions:

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

Questions1to4arebasedontheconversationyouhavejustheard.

1.A）Hewouldfeelinsulted.B）Hewouldfeelverysad.

C）Hewouldbeembarrassed.D）Hewouldbedisappointed.

2.A）Theyareworthyofaprize.B）Theyareoflittlevalue.

C）Theymakegoodreading.D）Theyneedimprovement.

3.A）Heseldomwritesabookstraightthrough.

B）Hewritesseveralbookssimultaneously.

C）Hedrawsonhisreal-lifeexperiences.

D）Heoftenturnstohiswifeforhelp.

4.A）Writingabookisjustlikewatchingafootballmatch.

B）Writersactuallyworkeverybitashardasfootballers.

C）Helikeswatchingafootballmatchafterfinishingabook.

D）Unlikeafootballmatch,thereisnoendtowritingabook.

Questions5to8arebasedontheconversationyouhavejustheard.

5.A）Achievementsofblackmaleathletesincollege.

B）Financialassistancetoblackathletesincollege.

C）Highcollegedropoutratesamongblackathletes.

D）Undergraduateenrollmentsofblackathletes.

6.A）Theydisplaygreattalentineverykindofgame.

B）Theyarebetteratsportsthanatacademicwork.

C）Theyhavedifficultyfindingmoneytocompletetheirstudies.

D）Theymakemoneyforthecollegebutoftenfailtoearnadegree.

7.A）About15%.B）Around40%.

C）Slightlyover50%.D）Approximately70%.

8.A）Coacheslacktheincentivetograduatethem.

B）Collegedegreesdonotcountmuchtothem.

C）Theyhavelittleinterestinacademicwork.

D）Schoolsdonotdeemitaseriousproblem.

SectionB

Directions:

Inthissection,youwillheartwopassages.Attheendofeachpassage,youwillhearthreeorfourquestions.Boththepassageandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA）,B）,C）andD）.

ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.

Questions9to12arebasedonthepassageyouhavejustheard.

9.A）Marketingstrategies.B）Holidayshopping.

C）Shoppingmalls.D）Onlinestores.

10.A）About50%ofholidayshoppers.

B）About20-30%ofholidayshoppers.

C）About136million.

D）About183.8million.

11.A）Theyhavefewercustomers.

B）Theyfindithardtosurvive.

C）Theyarethrivingoncemore.

D）Theyappealtoelderlycustomers.

12.A）Betterqualityofconsumergoods.

B）Higheremploymentandwages.

C）Greatervarietiesofcommodities.

D）Peoplehavingmoreleisuretime.

Questions13to15arebasedonthepassageyouhavejustheard.

13.A）Theyarenewspeciesofbiginsects.

B）Theyareoverprescribedantibiotics.

C）Theyarelife-threateningdiseases.

D）Theyareantibiotic-resistantbacteria.

14.A）Antibioticsarenowinshortsupply.

B）Manyinfectionsarenolongercurable.

C）Largeamountsoftaxmoneyarewasted.

D）Routineoperationshavebecomecomplex.

15.A）Facilities.

B）Expertise.

C）Money.

D）Publicity.

SectionC

Directions:

Inthissection,youwillhearthreerecordingsoflecturesortalksfollowedbythreeorfourquestions.Therecordingswillbeplayedonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA）,B）,CJandD）.ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.

Questions16to18arebasedontherecordingyouhavejustheard.

16.A）Itisaccessibleonlytothetalented.

B）Itimprovesstudents’abilitytothink.

C）Itstartsalifelonglearningprocess.

D）Itgivesbirthtomanyeminentscholars.

17.A）Theyencourageacademicdemocracy.

B）Theypromoteglobalization.

C）Theyupholdthepresidents’authority.

D）Theyprotectstudents’rights.

18.A）Histhirstforknowledge.B）Hiseagernesstofindajob.

C）Hiscontemptforauthority.D）Hispotentialforleadership.

Questions19to22arebasedontherecordingyouhavejustheard.

19.A）Fewpeopleknowhowtoretrieveinformationproperly.

B）Peoplecanenhancetheirmemorywithafewtricks.

C）Mostpeoplehavearatherpoorlong-termmemory.

D）Peopletendtounderestimatetheirmentalpowers.

20.A）Theypresentthestatesinasurprisinglydifferentorder.

B）Theyincludemoreorlessthesamenumberofstates.

C）Theyareexactlythesameasisshownintheatlas.

D）Theycontainnamesofthemostfamiliarstates.

21.A）Focusingonwhatislikelytobetested.

B）Havingagoodsleepthenightbefore.

C）Reviewingyourlessonswheretheexamistotakeplace.

D）Makingsensibledecisionswhilechoosingyouranswers.

22.A）Discoverwhenyoucanlearnbest.

B）Changeyourtimeofstudydaily.

B）Giveyourselfadoublebonusafterwards.

D）Followtheexampleofamarathonrunner.

Questions23to25arebasedontherecordingyouhavejustheard.

23.A）Heisapolitician.B）Heisabusinessman.

C）Heisasociologist.D）Heisaneconomist.

24.A）Inslums.

B）InAfrica.

C）Inpre-industrialsocieties.

D）Indevelopingcountries.

25.A）Theyhavenoaccesstohealthcare,letaloneentertainmentorrecreation.

B）Theirincomeislessthan50%ofthenationalaveragefamilyincome.

C）Theyworkextrahourstohavetheirbasicneedsmet.

D）Theirchildrencannotaffordtogotoprivateschools.

PartIIIReadingComprehension（40minutes）

SectionA

Directions:

Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassage

throughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.PleasemarkthecorrespondingletterforeachitemonAnswerSheet2withasinglelinethroughthecentre.Youmaynotuseanyofthewordsinthebankmorethanonce.

Questions26to35arebasedonthefollowingpassage.

Let’sallstopjudgingpeoplewhotalktothemselves.Newresearchsaysthatthosewhocan’tseemtokeeptheirinnermonologues（独白）inareactuallymorelikelytostayontask,remain26betterandshowimprovedperceptioncapabilities.Notbad,really,forsomeextramuttering.

AccordingtoaseriesofexperimentspublishedintheQuarterlyJournalofExperimentalPsychologybyprofessorsGaryLupyanandDanielSwignley,theactofusingverbalcluesto27mentalpictureshelpspeoplefunctionquicker.

Inoneexperiment,theyshowedpicturesofvariousobjectstotwenty28andaskedthemtofindjustoneofthose,abanana.Halfwere29torepeatoutloudwhattheywerelookingforandtheotherhalfkepttheirlips30.Thosewhotalkedtothemselvesfoundthebananaslightlyfasterthanthosewhodidn’t，theresearcherssay.Inotherexperiments,LupyanandSwignleyfoundthat31thenameofacommonproductwhenonthehuntforithelpedquickensomeone’space,buttalkingaboutuncommonitemsshowednoadvantageandslowedyoudown.

Commonresearchhaslongheldthattalkingthemselvesthroughataskhelpschildrenlearn,althoughdoingsowhenyou’ve32maturedisnotagreatsignof33.Thetwoprofessorshopetorefutethatidea,34thatjustaswhenkidswalkthemselvesthroughaprocess,adultscanbenefitfromusinglanguagenotjusttocommunicate,butalsotohelp“augmentthinking”.

Ofcourse,youarestillencouragedtokeepthetalkingatlibrarytonesand,whateveryoudo,keeptheinformationyousharesimple,likeagrocerylist.Atany35,there’sstillsuchathingastoomuchinformation.

SectionB

Directions:

Inthissection,youaregoingtoreadapassagewithtenstatementsattachedtoit.Eachstatementcontainsinformationgiveninoneoftheparagraphs.Identifytheparagraphfromwhichtheinformationisderived.Youmaychooseaparagraphmorethanonce.Eachparagraphismarkedwithaletter.AnswerthequestionsbymarkingthecorrespondingletteronAnswerSheet2.

RichChildrenandPoorOnesAreRaisedVeryDifferently

[A]ThelivesofchildrenfromrichandpoorAmericanfamilieslookmoredifferentthaneverbefore.

[B]Well-offfamiliesareruledbycalendars,withchildrenenrolledinballet,soccerandafter-schoolprograms,accordingtoanewPewResearchCentersurvey.Thereareusuallytwoparents,whospendalot

oftimereadingtochildrenandworryingabouttheiranxietylevelsandhecticschedules.

[C]Inpoorfamilies,meanwhile,childrentendtospendtheirtimeathomeorwithextendedfamily.Theyaremorelikelytogrowupinneighborhoodsthattheirparentssayaren’tgreatforraisingchildren,andtheirparentsworryaboutthemgettingshot,beatenuporintroublewiththelaw.

[D]Theclassdifferencesinchildrearingaregrowing—asymptomofwideninginequalitywithfar-reachingconsequences.Differentupbringingssetchildrenondi