2021年内蒙古自治区鄂尔多斯市大学英语6级大学英语六级模拟考试(含答案)

2021年内蒙古自治区鄂尔多斯市大学英语6级大学英语六级模拟考试(含答案)学校:________班级:________姓名:________考号:________

一、1.Writing(10题)1.Forthispart,youareallowed30minutestowriteashortessayentitledFoodSafetyProblem.Youshouldwriteatleast150words.FollowingtheoutlinegivenbelowinChinese:

1．我国食品市场存在的问题。

2．怎样解决食品安全问题。

3．结论。

2.Directions:Forthispart,youareallowed30minutestowriteashortessayentitledALetterofApplication.Youshouldwriteatleast150wordsfollowingtheoutlinegivenbelow:

1.渴望工作的愿望

2．个人技能和经历

3．联系方式

ALetterofApplication

3.Directions:Forthispart,youareallowed30minutestowriteashortessayentitledStudyingAbroad.Youshouldwriteatleast150wordsfollowingtheoutlinegivenbelow:

1.有些人认为学生应该呆在自己的国家学习。

2．有些人认为学生应该到国外学习。

3．我的观点。

4.Directions:Forthispart,youareallowed30minutestowriteacompositionwiththetitleofAHarmoniousCyberspace,givinganintroductionoftheadvantagesanddisadvantagesofthecyberspace,andsomemeasurestosolvetheproblem.Youshouldwriteatleast150wordsfollowingtheoutlinegivenbelowinChinese:

[*]

5.Forthispart,youareallowed30minutestowriteashortessayentitledCheatingonExams.Youshouldwriteatleast150wordsfollowingtheoutlinegivenbelow.

1．在各类考试中，总发现有学生作弊的现象

2．作弊所带来的不良影响

3．怎样制止作弊

CheatingonExams

6.Forthispart,youareallowed30minutestowriteALetterofInvitation.Youshouldwriteatleast150wordsaccordingtotheoutlinesgivenbelowinChinese:

假如你是李明，邀请你的朋友张峰在暑假期间去你家乡游玩。内容包括以下几点：

1．邀请张峰来你家乡

2．介绍你们家乡的风景特色

3．期盼回信

ALetterofInvitation

7.Directions:Forthispart,youareallowed30minutestowriteashortessayentitledRaisingDogsintheCity.Youshouldwriteatleast150wordsfollowingtheoutlinesgivenbelow:

1.现在养狗的人越来越多；

2．不文明养狗给社会造成了危害；

3．我的看法。

RaisingDogsintheCity

8.Directions:Forthispart,youareallowed30minutestowriteashortessayentitledBuyingandSellingStocksasaStudent.Youshouldwriteatleast150wordsfollowingtheoutlinegivenbelow.

1.在校大学生炒股的现象在一些地主很普遍

2.有人认为这种行为不利于学生的学习也有人认为这种行为也能让学生有所收获

3.你的观点

BuyingandSellingStocksasaStudent

9.Directions:Forthispart,youareallowed30minutestowritealetter.Supposeyouaregraduatingfromtheuniversitythissummerandyouaregoingtoapplyforajob.Youshouldwritenolessthan150wordsandyoushouldbaseyourcompositionontheoutlinegiveninChinesebelow:

1.假设你是一位即将毕业于复旦大学电子计算机系的学生，你从报纸上看到某公司招聘一名电子计算机工程技术口译人员的广告，请你写一封求职信说明你应聘的理由。

10.Directions:Forthispart,youareallowedthirtyminutestowriteashortessayentitledTelephoneorLetter.Youshouldwriteat/east150wordsfollowingtheoutlinegivenbellow.

1.有人喜欢用电话交流，因为……

2.有人则喜欢用书信交流，因为……

3.我的看法。

TelephoneorLetter?

二、2.ReadingComprehension(SkimmingandScanning)(10题)11.

Whentheauthordisciplinedhimselftoworkharder,______.

A.hedevelopedsenseofsecurity

B.hisofficehourswerereduced

C.hisefficiencyratiodecreased

D.hewasmorewillingtowork

12.

Oftenassociatedwithcrudeoil,naturalgasisprincipallymadeupof___________andotherhydrocarbongases.

13.

Peoplechoosetoprocrastinatebecausetheyhavetodealwithdifferentkindsofcomplexwork.

A.YB.NC.NG

14.

Aswearestillignorantofmillionsofuniquelifeformsintherainforest,deforestationcanbecomparedtothedestructionof______.

15.

Sincerainforestbacteriaandtreesdependoneachotherforlife,therelationshiptheyform.istermed______.

16.

DeborahStipekthoughtherdaughter'sassignmentoflearningthenamesofalltheriversinSouthAmerica______.

A.wasimpressive

B.didn'tmakesense

C.involvedGoogle

D.madeherdaughtersilly

17.

MoreandmorepeopleintheU.S.tendtoidentifyasAmericanIndianspartlybecausethey______.

18.

DennisandIlah'sincomeisatmid-levelinthesociety.

A.YB.NC.NG

19.

IntheUnitedStates,thefuelingstationsofferingforfillingnaturalgashavereachedto______.

A.1,300B.500C.1,500D.2,500

20.

TheglassesintheAbsoluteIceBararemadeoficeto______.

三、3.ListeningComprehension(10题)21.听力原文：W:Openwide.Nowshowmewhereithurts.

M:Hereonthebottom,especiallywhenIbitesomethingcoldorhot.Icouldn'tenjoyice-creamandhotsoupanymore.It'sarealtorture.

Q:Whatisthemostprobablerelationshipbetweenthetwospeakers?

(18)

A.Motherandson.

B.Lawyerandclient.

C.Teacherandstudent.

D.Dentistandpatient.

22.听力原文：M:I'mgladyoudecidedtodrivethiswaytoday.

W:Isn'titnicetohaveachangeinourroutine?

Whatdowelearnfromthewoman'sresponse?

(13)

A.Theyarepleasedwiththeirnewautomobile.

B.Theyusedifferentmeansoftransportationeveryday.

C.Theydon'tnormallydriveonthismute.

D.Theywillhavetochangebusesagain.

23.(24)

A.Getmorefundingfortheirgroup.

B.Scheduleameetingwithcollegeadministrators.

C.Securemorestudentparkingspaces.

D.Preserveanopenspaceoncampus.

24.(39)

25.(17)

A.Thewomandoesn'tlikeorangejuice.

B.Thewomandidn'tcometoseeEverett.

C.Themanwasinacarcrashthismorning.

D.Themanbrokethecontainerofjuice.

26.(14)

A.TheprofessorspokesGreek.

B.Themancan'tunderstandthelecture.

C.ThelecturewasonGreekculture.

D.ManyGreeksattendedthelecture.

27.(16)

A.Brettwon'ttrytogetrevenge.

B.Brettwon'tbeangryanymore.

C.Brettwillnotalwaysbesobusy.

D.Brettwillhaveforgottenthewoman'swords.

28.

【B3】

29.(21)

A.Becausetheyarenotspecialandhavenoindividualfeatures.

B.Becausetheirnewfunctionshaven'tbeenputintoeffect.

C.Becausethewomandoesn'tlikelivingnearthecampus.

D.Becausethewalls'soundinsulationisverypoor.

30.SectionA

Directions:Inthissection,youwillhear8shortconversationsand2longconversations.Attheendofeachconversation,oneormorequestionswillbeaskedaboutwhatwassaid.Boththeconversationandthequestionswillbespokenonlyonce.Aftereachquestiontherewillbeapause.Duringthepause,youmustreadthefourchoicesmarkedA,B,CandD,anddecidewhichisthebestanswer.

(12)

A.Shesuggeststhemanspendanothersixmonthsontheproject.

B.Shesuggeststhemanrejecttheprojectbecauseitisrisky.

C.Shesuggeststhemandesignanotherprojecttowinoverhisboss.

D.Shesuggeststhemandosomechangestohisproject.

四、4.ReadingComprehension(ReadinginDepth)(3题)31.

Fromthepassage,wecaninferthat______.

A.alcoholisgood

B.drugsshouldbeboughtandtakenbyprescription

C.peopleshouldtakemoredrugstocultivateadrugculture

D.aspirinisnotconsideredadrug

32.

Bysayingthat"soccerisanattractivetargetforgamblers"(Line1,Para.2),theauthormeansthatgamblers______.

A.areinterestedinplayingsoccer

B.enjoywatchingsoccergames

C.thinkmatchresultshardtopredict

D.findmatchresultseasytomanipulate

33.

Intheauthor'sopinion,whatdidnaturerepresenttoIsadoraDuncan?

五、5.ErrorCorrection(3题)34.

【S4】

35.

【S5】

36.

【S3】

六、6.ErrorCorrection(3题)37.

【S3】

38.

【S2】

39.

【S5】

参考答案

1.FoodSafetyProblemWiththedevelopmentofourcountry'seconomytherearisesomenewproblemsamongwhichisthefoodsafetyproblem.AhandfulofprofiteersputsomeharmfulmaterialsintothefoodtheymaketFoodSafetyProblemWiththedevelopmentofourcountry'seconomy,therearisesomenewproblems,amongwhichisthefoodsafetyproblem.Ahandfulofprofiteersputsomeharmfulmaterialsintothefoodtheymaket

2.ALetterofApplicationDearSir(1)Iamwritingtoapplyforthepostofapart-timesecretaryadvertisedinthelocalnewspaper.(2)IfeltitwasjustthekindofpostforwhichIhavethequalificationsandALetterofApplicationDearSir,(1)Iamwritingtoapplyforthepostofapart-timesecretaryadvertisedinthelocalnewspaper.(2)IfeltitwasjustthekindofpostforwhichIhavethequalificationsand解析：本文是一篇六级考试中常见的书信写作，要求考生写一封求职信。根据题目要求，考生应首先提出申请意向，表达兴趣，然后介绍自己的具体情况，最后表明希望能得到面试机会并留下联系方式。

[提纲]

一、表明申请工作的意向(applyfor，qualifications，lookfor)

二、介绍个人情况

1．就读院校、专业(major)、年级(sophomore)

2．学习成绩

3．课余活动(practice，part-timejobs)

三、表达期望随函附上简历，敬请斟酌(enclosed，resume，favorableconsideration)

[解析]

(1)首先明确指出应聘的职位。Iamwritingtoapplyfor...

(2)指出自己能胜任工作并且向往已久。

(3)介绍个人情况。

(4)注意compulsorycourses“必修课”及optionalcourses“选修课”的说法。

(5)graspopportunitiestodo...“抓住机会做某事”。

(6)enclosed“随函附上”。

(7)注意“敬请斟酌”的表达。

(8)落款勿遗漏。

3.StudyingAbroadNowadaysstudentscanstudyeitherintheirhomecountryorinforeigncountriesinmosteasestheUnitedStates.Someprefertostayintheirhomecountryandstudy.OthersthinkstudyingintheUnitedStatesismorebeneficial.Asamatteroffacteachsituationhasitsownadvantages.Whenstudentsstudyintheirhomecountryrileyhavenolanguagebarriers.Theycanreadbookswiththeirmothertongueveryeasily.Theycanalsodiscusstheirlessonswiththeteachersorthefellowstudentsveryfreely.Sincetheyareaccustomedtothewaytheyhavebeenlivingtheyhavelittledifficultiesinlife.Besidestheyhavelittlefinancialdifficultiesintheprocessoftheirstudiesbecausetheycaneasilygetfinancialsupportfromtheirparentsortheirrelatives.WhenstudentsattendschoolsintheUnitedStatestheycanactasmediatorsbetweenpeoplesofdifferentculturestopromoteinternationalunderstanding.TheycanalsotendtobespokespersonsforotherculturesandpeoplewhomaybemisunderstoodbyAmericans.Theycanenjoythecontactwithnewanddifferentculturestoincreasetheawarenessoftheirownculture.InadditiontheycanlearnadvancedknowledgeofscienceandtechnologyandlearnEnglishmuchmorequicklythanintheirhomecountry.Ithinkit'sbettertostudyintheUnitedStatesbecausetheadvantagestostudyingintheUSoutweighthosetostayinginone'shomecountry.StudyingAbroadNowadaysstudentscanstudyeitherintheirhomecountryorinforeigncountries,inmosteases,theUnitedStates.Someprefertostayintheirhomecountryandstudy.OthersthinkstudyingintheUnitedStatesismorebeneficial.Asamatteroffact,eachsituationhasitsownadvantages.Whenstudentsstudyintheirhomecountry,rileyhavenolanguagebarriers.Theycanreadbookswiththeirmothertongueveryeasily.Theycanalsodiscusstheirlessonswiththeteachersorthefellowstudentsveryfreely.Sincetheyareaccustomedtothewaytheyhavebeenliving,theyhavelittledifficultiesinlife.Besides,theyhavelittlefinancialdifficultiesintheprocessoftheirstudiesbecausetheycaneasilygetfinancialsupportfromtheirparentsortheirrelatives.WhenstudentsattendschoolsintheUnitedStates,theycanactasmediatorsbetweenpeoplesofdifferentculturestopromoteinternationalunderstanding.TheycanalsotendtobespokespersonsforotherculturesandpeoplewhomaybemisunderstoodbyAmericans.Theycanenjoythecontactwithnewanddifferentculturestoincreasetheawarenessoftheirownculture.Inaddition,theycanlearnadvancedknowledgeofscienceandtechnology,andlearnEnglishmuchmorequicklythanintheirhomecountry.Ithinkit'sbettertostudyintheUnitedStatesbecausetheadvantagestostudyingintheUSoutweighthosetostayinginone'shomecountry.

4.AHarmoniousCyberspaceTheadventoftheInternetusheredinaneweraofinterpersonalcommunicationsandbusinessoperations.ItprovidesavehiclefornetizenstoshopsearchpublishblogsandbrowseWebpages.ArangeofproblemslurkingbehindthefrenzyofInternetimpressivelystandout.AvastmajorityofInternetusers'mailboxesaresaturatedwithjunkmails.Pornwebsiteslureagrowingnumberofyoungpeople'svisits.Falsenewsviathee-mailBBSandchatroomincreasinglyposesathreattothesocialprosperityandstability.Tocrackthemdownweshouldpushforamoreeffectivelytoughlaw.Weshouldjoinourforcestolaunchanation-widecampaignincludingimposingstiffpenaltiesonspammersshuttingdownorblockingtheunhealthysitesandintroducingareal-nameregistrationsystemtogetridoffalsemessages.Wecanfullybelievethatourcombinedeffortswillreaprewards.Acleancyberspacewillpaintourlivesmorecolorfully.AHarmoniousCyberspaceTheadventoftheInternetusheredinaneweraofinterpersonalcommunicationsandbusinessoperations.Itprovidesavehiclefornetizenstoshop,search,publishblogsandbrowseWebpages.ArangeofproblemslurkingbehindthefrenzyofInternetimpressivelystandout.AvastmajorityofInternetusers'mailboxesaresaturatedwithjunkmails.Pornwebsiteslureagrowingnumberofyoungpeople'svisits.Falsenewsviathee-mail,BBSandchatroomincreasinglyposesathreattothesocialprosperityandstability.Tocrackthemdown,weshouldpushforamoreeffectivelytoughlaw.Weshouldjoinourforcestolaunchanation-widecampaign,includingimposingstiffpenaltiesonspammers,shuttingdownorblockingtheunhealthysitesandintroducingareal-nameregistrationsystemtogetridoffalsemessages.Wecanfullybelievethatourcombinedeffortswillreaprewards.Acleancyberspacewillpaintourlivesmorecolorfully.

5.CheatingonExamsCheatingonexamsisnothingnew.Aslongastherehavebeenexaminationrulestherehavebeenpeopleintentonbreakingthem.What'salarmingnowishowwidespreadandrampantthepracticehasbecome.Thereisalwayssomebodydoingitinvariousexaminations.Somestudentsevensaythatifyoudon'tyoufeellikeachump.Examcheatshavebadeffects.InChinaexaminationsareanimportantmethodofmeasuringtalentandevaluatingqualifications.Sothatshouldbeafairplay.Ifastudentgetsgoodgradesthroughcheatingsaypeekingataneighbor'stestpaperorreceivingtestanswersviatextmessagesthat'sunfairtothestudentswhotaketheexamthroughtheirownefforts.Andatthesametimetheexaminationlosesitsoriginalmeaning.Tocurbexamcheatingfirstschoolsshouldreinforcemoraleducationandtellstudentsthat"Youshouldnotcheatonexams.That'simmoral".Secondschoolsshouldbanallcellphonescamerasandothergadgetsduringexamhours.Finallyschoolsshouldtakevariousmeasurestopunishthestudentscaughtcheating.CheatingonExamsCheatingonexamsisnothingnew.Aslongastherehavebeenexaminationrules,therehavebeenpeopleintentonbreakingthem.What'salarmingnowishowwidespreadandrampantthepracticehasbecome.Thereisalwayssomebodydoingitinvariousexaminations.Somestudentsevensaythatifyoudon'tyoufeellikeachump.Examcheatshavebadeffects.InChina,examinationsareanimportantmethodofmeasuringtalentandevaluatingqualifications.Sothatshouldbeafairplay.Ifastudentgetsgoodgradesthroughcheating,say,peekingataneighbor'stestpaperorreceivingtestanswersviatextmessages,that'sunfairtothestudentswhotaketheexamthroughtheirownefforts.Andatthesametime,theexaminationlosesitsoriginalmeaning.Tocurbexamcheating,first,schoolsshouldreinforcemoraleducationandtellstudentsthat"Youshouldnotcheatonexams.That'simmoral".Second,schoolsshouldbanallcellphones,camerasandothergadgetsduringexamhours.Finally,schoolsshouldtakevariousmeasurestopunishthestudentscaughtcheating.

6.ALetterofInvitationDearZhangfengIfyouhavenopreviousengagementduringthesummervacationI'dlikeyoutohaveatouraroundmyhometownwithmyheartfeltsincerity.Wehaven'tenjoyedbeingtALetterofInvitationDearZhangfeng,Ifyouhavenopreviousengagementduringthesummervacation,I'dlikeyoutohaveatouraroundmyhometownwithmyheartfeltsincerity.Wehaven'tenjoyedbeingt

7.RaisingDogsintheCityRecentlymoreandmorepeoplebegintoraisedogsinthecity.Youmayfinddogshereandthereinpublicplacesorevenonbuses.Ithasmoreorlessbecomeoneofthelatestfashions.Yetthenegativeeffectsofraisingdogsinthecityareobvious.Tobeginwithitmaypollutetheenvironment.We'canoftenseedogsdroppingtheirwastearoundthecitywhentheyarewalkedoutdoors.Fewoftheirownerswouldpickitupafterthedogs.Inthesecondplacewithtoomanydogsinpublicplacescasesofdogsattackingpeoplearenotrarenow.Finallythebarkingofdogsmayalsodisturbthequietneighborhood.Inmyviewraisingdogsinthecitymustbeputunderstrictcontrol.Thosewhoraisedogsinthecitymustobserverespectiveregulationsandruleswhichmaykeepthedogsfrompollutingtheenvironmentandthreateningthesafetyofthepeople.Andifsomeonewantstokeepadoginthecityheisrequiredtogetapprovalfromtheneighbors.Onlyinthiswaycanweco-existhappilyandsafelywiththedogsinthecity.RaisingDogsintheCityRecentlymoreandmorepeoplebegintoraisedogsinthecity.Youmayfinddogshereandthereinpublicplacesorevenonbuses.Ithasmoreorlessbecomeoneofthelatestfashions.Yetthenegativeeffectsofraisingdogsinthecityareobvious.Tobeginwith,itmaypollutetheenvironment.We'canoftenseedogsdroppingtheirwastearoundthecitywhentheyarewalkedoutdoors.Fewoftheirownerswouldpickitupafterthedogs.Inthesecondplace,withtoomanydogsinpublicplaces,casesofdogsattackingpeoplearenotrarenow.Finally,thebarkingofdogsmayalsodisturbthequietneighborhood.Inmyview,raisingdogsinthecitymustbeputunderstrictcontrol.Thosewhoraisedogsinthecitymustobserverespectiveregulationsandrules,whichmaykeepthedogsfrompollutingtheenvironmentandthreateningthesafetyofthepeople.Andifsomeonewantstokeepadoginthecity,heisrequiredtogetapprovalfromtheneighbors.Onlyinthiswaycanweco-existhappilyandsafelywiththedogsinthecity.解析：[审题]这次考试的写作题属于常见的三段式作文。要求考生就某一事物或社会现象进行深入的剖析，并阐述自己的看法和立场。

第—段要介绍养狗已成为一种时髦。

第二段可以从两个或三个层面来说明其危害。例如破坏环境卫生，威胁他人安全等。

第三段说出自己的看法。例如要严格控制，养狗要遵循法规等。[提纲]

1.Raisingdogs,oneofthelatestfashions.

2.Thenegativeeffectsofraisingdogs.

pollutetheenvironment

bitepeople

disturbtheneighborhood

3.Myview:

putunderstrictcontrol

approvaloftheneighbors

8.BuyingandSellingStocksasaStudentAtpresenttherearemanystudentsengagedinbuyingandsellingstocks.SomeofthemareequippedwithupdateddevicesoastogetthelatestinformationandseizegoldenchanceBuyingandSellingStocksasaStudentAtpresent,therearemanystudentsengagedinbuyingandsellingstocks.Someofthemareequippedwithupdateddevicesoastogetthelatestinformationandseizegoldenchance解析：[写作点拨]

①审题及布局。这篇作文是讨沦大学生炒股这一热点问题。在布局上，可以根据提纲进行三段式写作。根据提纲，我们可以把第二点作为文章的重点段落，运用总——分的段落模式进行写作：同时把第一点和第三点作为略写段落。第一段简要地说明这种现象普遍存在即可。第二段可以用一个主题句，表明不同的人对此有不同的看法，并说明原因。第三段阐述自己的观点，可以是赞同其中之一，也可以是自己独特的见解。②语言。在用词上，争取用不同方式表达相同的意义。多样化的表达方式使文章显得生动、流畅，如对买卖股票的相关表达。

9.ALetterofApplyingforaJobDearManagerWithreferencetoyouradvertisementinthenewspaperIamwritingtoapplyforaninterpreterpostinyourcompany.AsacomputermajorgraduatedfromFudanUniversitythissummerIhavehadagoodcommandofextremelyrelevantandusefulknowledgeincomputerengineering.MoreoverIdohaveacertainamountofexperienceinthefieldasIhavetakenseveralpart-timejobswhichweredirectlyconcernedwithcomputerengineeringtothecampus.BesidesIcanspeakEnglishfluenflyandeloquentlywhichIbelievetobeessentialqualitytoaninterpreter.SincethefirstcontactIhavemaintainedastronginterestincomputer.I'msureIwouldlovetoworkinmyspecializedarea.I'mlookingforwardtoyourreplyinthenearfuture.YourssincerelyJaneMorrisALetterofApplyingforaJobDearManager,Withreferencetoyouradvertisementinthenewspaper,Iamwritingtoapplyforaninterpreterpostinyourcompany.AsacomputermajorgraduatedfromFudanUniversitythissummer,Ihavehadagoodcommandofextremelyrelevantandusefulknowledgeincomputerengineering.Moreover,IdohaveacertainamountofexperienceinthefieldasIhavetakenseveralpart-timejobs,whichweredirectlyconcernedwithcomputerengineeringtothecampus.Besides,IcanspeakEnglishfluenflyandeloquentlywhichIbelievetobeessentialqualitytoaninterpreter.Sincethefirstcontact,Ihavemaintainedastronginterestincomputer.I'msureIwouldlovetoworkinmyspecializedarea.I'mlookingforwardtoyourreplyinthenearfuture.Yourssincerely,JaneMorris

10.TelephoneorLetter?Communicationisveryimportantbothinthepastandatpresentandittendstobemoreessentialinmodemsociety.Telephoneandletteraretwomainmeansofcommunicationtheybothhavetheiradvantagesanddisadvantages.Communicatingwithotherpeoplebytelephoneisveryconvenientespeciallywhenyouhavesomethingurgent.Forexampleifoneofyourfamilymembersisseriouslyiiiatnightandyoudon'tknowhowtodealwithitandwheretofindadoctororataxi.Whatcanyoudo?Atelephoneistheanswer.Dial120andyouwillgetservicesfromthedoctorverysoon.Inadditionwiththequickrhythmoflifepeopleusuallydon'thaveasmuchtimetowritelettersasbeforeagaintelephonesolvestheproblem.Friendscanchatthroughthewire.[tseemsthattelephoneshortensthedistancebetween'people.Mencankeepintouchwitheachothermoreeasily.Howeverstillsomepeoplepreferwritingletterstocommunicatewithfriends.Firstsendingaletterismuchcheaperthanhavingatelephonecall.Now6jiaowillbeenoughtosendyourlettertoyourfriendslivinginanothercitywhilemaybeatleast2-3yuanaminutewillbecostforadistanttelephone.Secondpeoplecannotonlygreeteachotherbutalsoexchangetheirthoughtsinletters.Becausewhenapersonwriteshemustorganizehismindandexpresshisideasandfeelingsmorelogicallywhiletelephoneoftenmakespeoplelazy.Finallypeopleeasilykeepsecretintheletterandsaywhatevertheywanttosaywhiletheysometimescan'tdothatinatelephone.Inmyopinionyoucancombinethesetwowaystogether;someunimportantthingscanbeexpressedbyatelephonewhilesomeimportantorunspokenthingscanbedonebyaletter.TelephoneorLetter?Communicationisveryimportantbothinthepastandatpresent,andittendstobemoreessentialinmodemsociety.Telephoneandletteraretwomainmeansofcommunication,theybothhavetheiradvantagesanddisadvantages.Communicatingwithotherpeoplebytelephoneisveryconvenient,especiallywhenyouhavesomethingurgent.Forexample,ifoneofyourfamilymembersisseriouslyiiiatnight,andyoudon'tknowhowtodealwithitandwheretofindadoctororataxi.Whatcanyoudo?Atelephoneistheanswer.Dial120andyouwillgetservicesfromthedoctorverysoon.Inaddition,withthequickrhythmoflife,peopleusuallydon'thaveasmuchtimetowritelettersasbefore,againtelephonesolvestheproblem.Friendscanchatthroughthewire.[tseemsthattelephoneshortensthedistancebetween'people.Mencankeepintouchwitheachothermoreeasily.However,stillsomepeoplepreferwritingletterstocommunicatewithfriends.First,sendingaletterismuchcheaperthanhavingatelephonecall.Now6jiaowillbeenoughtosendyourlettertoyourfriendslivinginanothercity,whilemaybeatleast2-3yuanaminutewillbecostforadistanttelephone.Second,peoplecannotonlygreeteachotherbutalsoexchangetheirthoughtsinletters.Becausewhenapersonwrites,hemustorganizehismindandexpresshisideasandfeelingsmorelogically,whiletelephoneoftenmakespeoplelazy.Finally,peopleeasilykeepsecretintheletterandsaywhatevertheywanttosay,whiletheysometimescan'tdothatinatelephone.Inmyopinion,youcancombinethesetwowaystogether;someunimportantthingscanbeexpressedbyatelephone,whilesomeimportantorunspokenthingscanbedonebyaletter.

11.C解析：选项C与原文该部分第3句中的efficiencyratio…lower同义，故为本题答案。选项B是作者尝试的另一种方法，选项A、D与原文意思相反。

12.methane。methane。解析：本题涉及天然气的组成成分。小标题NaturalGasBasics下第三段首句Naturalgasconsistsprimarilyofmethaneandotherhydrocarbongases为答案出处。题干是对其进行了同义转述(isprincipallymadeupof对应consistsprimarilyof)。

13.C

14.an

15.symbioticsymbiotic解析：由“StranglerandButtresses”部分的第三段中的“Rainforestbacteriaandtreeshaveaveryclose，symbioticrelationship．Thetreesprovidethebacteriawithfond，intheform.offallenleavesandothermaterial，andthebacteriabreakthismaterialdownintothenutrientsthatthetreesneedtosurvive．”可知树木为细菌提供食物，细菌则分解这些东西，反过来为树木提供养分．它们之间是密切的共生关系。故答案为“symbiotic”。

16.B解析：同义转述题。得知自己女儿的作业是要知道全南美洲所有的河流名称时，DeborahStipekwasnotimpressed，“没当回事”，“这种作业真愚蠢”，也就是说，她认为这种作业毫无意义，即didn'tmakesense。

17.areproudoftheirethnicsareproudoftheirethnics解析：文章的最后谈到“种族身份的认定”—Racialidentificationconstemfromother,sources,suchasheightenedethnicpridetheopportunitytobenefitfromaffirmativeactionandotherprograms.种族身份的认定也取决于其他原因,如民族自豪感增强,或可从肯定性行动计划(affirmativeaction)或其他项目中获益。接着作者就以人口普查中出现的情况为例：在过去几十年中,印第安人血统显然颇受青睐。1970年至1980年间,在人口普查表上声明属美洲印第安人的人口数量从80万增至140万,造成这一增长速度的原因远不止于“出生人口减去死亡人口”,而后作者再进一步分析其原因—"People