2023年辽宁省本溪市统招专升本英语自考预测试题(含答案)

2023年辽宁省本溪市统招专升本英语自考预测试题(含答案)

一、单选题(20题)1.Shetriedtoexplainthisprogramby_____ofsignlanguage（）

A.eventB.meansC.routeD.capacity

2.It'stimethatwe______measurestofightagainstcrimesintheeconomicfield（）

A.adaptedB.addictedC.addressedD.adopted

3.Winteristheseasonoftheyear_______thedaysareshortandnightsarelong（）

A.whereB.whenC.thatD.onwhich

4.Itoughttobeyoumethatsigntheletter（）

A.butB.inspiteofC.ratherD.ratherthan

5.It'snogood.Youjusthavetoputupwithallthese（）

A.complainedB.complainingC.tobecomplainingD.tocomplain

6.ThemayorofBeijingsaysthatallconstructionwork_____bytheendofnextyear（）

A.hasbeencompleted

B.hascompleted

C.willhavebeencompleted

D.willhavecompleted

7.Wouldyoulikemyoldcomputerin______forthiscamera（）

A.exchangeB.convertC.replaceD.substitute

8.Inmyopinion,thisisa（n）differentmatter（）

A.entirelyB.merelyC.purelyD.fully

9.______tosunlightfortoomuchtimewilldoharmtoone'sskin（）

A.Exposed

B.Havingexposed

C.Beingexposed

D.Afterbeingexposed

10.Itisworth_____thatanymeasurestakenbythegovernmentcaneventuallyaffectone'sdailylife（）

A.torememberB.rememberC.rememberedD.remembering

11.Thetraditionalapproachwithcomplexproblemsistobreakthemdownintosmaller,moreeasilymanagedproblems（）

A.todealingB.indealingC.dealingD.todeal

12._____withthedevelopedcountries,someAfricancountriesareleftfarbehindintermsofpeople’slivingstandards（）

A.CompareB.TocompareC.ComparedD.Comparing

13.He（）yesterdaymorning,andwouldstayforthreedays

A.checkedupB.checkedonC.checkedoutD.checkedin

14.Itwasthedrunkendriver______wastoblamefortheterribletrafficaccidentbecausehedrovetoofastontheroad（）

A.whereB.whichC.whoD.when

15.Asforthequalityofthismodelofcomputers,theonesmadeinChinaarebynomeansthoseimported（）

A.inferiorthan

B.lessinferiorto

C.lessinferiorthan

D.inferiorto

16.Thetwoleaders（）ontheissuesoftheMiddleEast

A.discussedB.caughtC.supportedD.differed

17.Villagersare_______nottoswimintheriversinceitisquitedeepanddangerous（）

A.attendedB.neglectedC.arrestedD.warned

18.IfonlyI（）adoctor

A.wasB.wereC.isD.am

19.Whenandwheretoholdthemeetingnotbeendecidedyet（）

A.willB.mightC.hasD.have

20.Scarcelyhadtheysettledintheirseatsinthecinema（）thefilmbegan

A.whenB.thanC.asD.until

二、选词填空题(10题)21.3.____

22.Researchershavefoundthatpeoplewhogotoconcerts,showsandmuseumscanlivelongerthan1whodonot.ExpertsfromUniversityCollegeLondonhavebeenexaminingthelifestylesofover6,700Britishpeople215years.They3howoftenthepeoplewentoutandwhatkindsofeventstheyattended.Theyfoundthatpeopleover50yearsold4regularlywenttoconcertswereabout30percent5likelytodieoverthenext14years.Theresearcherssaidtheover50scouldextendtheirlife6engagingwiththearts.Inadditiontolivinglongerconcertgoerscouldalsohavemorefun.TheUKHealthSecretaryMattHancockbelievestherecouldbealotof7intheresearch.Hesaidartsandculturecould8thingslikementalhealth,agingandloneliness.He9announcedplansfortheUK’sNationalHealthServicetousetheartstohelppeopleliveahealthierlife.Oneresearchersaid,“Ourresultshighlighttheimportanceof10toexplorenewsocialfactorsthataffectourhealth.”1.____

23.Studentsatuniversitycanlearnandmakefriends1willlastalifetime.However,thecostofstudyingisontherise.Thisincreasemeansthatmoststudentscangetintomoneytrouble2theydonotknowhowtomanagetheirmoney.Itisnotjustthecoursefees.Studentsmustalso3forroomandboard.Inaddition,theymayspendmoney4clothes,travel,andotherthings.Thus,studentsneedtobudget5.Atmostuniversitiesteacherscangivestudentssuggestionsonhowtospendtheirmoney.Thefirstthingtheysuggestistowritedownyour6,forexample,themoneyyouwillgetfromyourfamilyorapart-timejob.Thenlistallofyourexpenses.Putyourexpensesintotwo7:thosethatchange(food,books,travel),andthosethatwillstaythesame(tuition,roomandboard).Addtogetherallofyourexpenses.Whenyoudothis,youfinditis8toplanoutyourbudget.Thismeansyoucansaveyourmoney,ratherthantryingto9fromothers.Asyoucansee,thereismoretolearnatuniversitythanjust10istaughtintheclassroom.____

三、情景对话(10题)24.Mike:Goodmorning!66

Tom:Yes,mayIseeyourproductionmanager,Mr.Smith,please?

Mike:Iamsorry.67

Tom:Well,I'dliketomakeanappointmenttoseehimsometimenextweek.

Mike:68Yes,Mr.Smithdoesn'tseemtobebusyonTuesdaymorningandFridayafternoon.

Tom:69

Mike:Would9:30beconvenient?

Tom:Yes,that'llbefine.

Mike:I'llmakeanoteofthat.70

Tom:Yes,thisismynamecard.Youcancontactmeanyday.

Mike:OK.

Tom:Thankyouverymuch!Good-bye!

Mike:Good-bye!

A.CouldImakeanappointmentforTuesdaymorning?

B.CanIhelpyou?

C.MayIhaveyourname,please?

D.Mr.Smithisoutonbusinesstoday.

E.LetmecheckMr.Smith'sdiary

66.____（）

25.74.____（）

26.3（）

A.Notatall

B.Anyothersuggestions?

C.Itdependsontheweather

D.AnythingIcandoforyou？

E.Whatareyouuptothisweekend

27.68.____（）

28.70.____（）

29.4（）

A.Wheredidyoubuyit?

B.Youlooksoattractive

C.Arethereanyothercolors?

D.Isee,thankyou

E.Sinceherbirthdayiscoming

30.Mary:Hello!71

John:Sure,mynameisJohnSmithandI'mfromasmalltowncalledBrentwoodinEssexwhichisinEngland.

Mary:OK,Essex.72

John:That'sinthesoutheast.

Mary:Southeast?

John:Yeah,yeah.It'sattachedtoLondon,justnexttoLondon.

Mary:Oh,OK,butyousaidit'sasmalltown.

John:It'srelativelysmall.73

Mary:Oh,whenIthinkofasmallBritishtown,youknow,Ithinkofreallyoldhouses,andnothing'schanged.74

John:ThecinemainBrentwoodactuallycloseddown,butitdoeshaveaverynicehealthcentreand,asIsaid,lotsofparkstoplayin.

Mary:75

A.Thepopulationisonlyabout50,000.

B.Wow,itsoundslikeaniceplacetolivein.

C.WhichpartofEnglandisthat?

D.Doyouhavemodernstuff,likeahealthclub,amovietheatreorthingslikethat?

E.Canyouintroduceyourself,please

71.____（）

31.Task1（每小题2分，共10分）

W：Goodmorning，Mr.Zhang.IamChenHua，andI'llbeinterviewingyou.Howareyoutoday?

M：66

W：Canyoutellmesomethingaboutyourexperiencesinthiskindofwork?

M：Well，formanyyears，ImanagedadepartmentfortheRedstoneCompanyinLondon.NowIworkpart-timebecauseIalsogotoschoolatnight.I'mgettingabusinessdegree.

W：Oh，howinteresting.67

M：I'llfinishschoolinafewmonths，andI'dlikeafull-timepositionwithmoreresponsibility.

W：Andwhywouldyouliketoworkforourcompany?

M：68

W：Couldyoupleasetellmeaboutyourspecialskillsandinterests?

M：Ofcourse，I'mgoodatcomputersandIcanspeakFrench.IusedtotakeFrenchclassesatthelocalcollege.69

W：Canyougivemeanyreferences?

M：Yes，certainly.YoucantalktoMr.Wang，myboss，attheRedstoneCompany.Icouldalsogiveyouthenamesandnumbersofseveralofmyteachers.

W：Allright，Mr.Zhang.70

M：Yes,IwonderwhenI'llbeinformedaboutmyapplicationforthejob?

W：Well，we'llletyouknowassoonaspossible.Let'skeepintouch.Thankyouverymuchforyourcoming.

M：Thankyou.

A.Iamfine.Thankyou.

B.Wouldyouliketoaskmeanyquestions?

C.AndIliketravellingalot.

D.BecauseIknowyourcompany'swork，andIlikeit.

E.Tellme,whydoyouwanttoleaveyourpresentjob

66.____（）

32.14.____（）

33.5（）

A.Ienjoyapproachingproblemsdirectly

B.Nicetomeetyou

C.Whatareyourstrengths?

D.Tellmeaboutyourworkexperience

E.IthinkI’mverylevelheaded

四、翻译(10题)34.他开车时心不在焉，几乎闯祸

35.Sinceitsestablishment,theHopeProjecthaswonwidespreadsupportfromChinesecitizens,whohavegenerouslydonatedmoney，clothingandschoolsuppliestohelppoorchildreninruralareasgobacktoschool.ThesettingupoftheprojectindicatesthattheChineseauthoritieshavefinallycometotermswithrealitiesinthecountryside,wherelifeisstilldifficult,and,formanyyoungchildren,goingtoschooliseconomicallyinfeasible

36.Itsinventorssayeighttotwelveyearsoldistheagewhenkidsdeveloptheircriticalthinkingabilities

37.（）一声吼叫之后，一只老虎从树林里冲了出来。

A.Followingtheroar,atigerrushedfromtheforest.

B.Followingtheroar,outrushedatigerfromtheforest.

C.Followingtheroar,outdidatigerrushfromtheforest.

D.Followingtheroar,outatigerdidrushfromtheforest

38.由于那天晚上被要求加班，约翰错过了一场精彩的电影（）

39.Ourgovernmentisdoingeverythingitcantorelievethepainofthepeopleinthedisaster-strickenareaandhelpthemrebuildtheirhomesaftertheearthquake

40.（）尽管开发电视是为了播送节目，后来却发现电视还有很多与此毫无关系的重要用途。

A.Televisionwasdevelopednotonlyforbroadcasting,butalsomanyimportantuseshavesomethingtodowithit.

B.Althoughtelevisionwasdevelopedforbroadcasting,manyimportantuseshavebeenfoundthathavesomethingtodowithit.

C.Inorderthattelevisionwasdevelopedforbroadcasting,manyimportantuseshavebeenfoundthathavenothingtodowithit.

D.Althoughtelevisionwasdevelopedforbroadcasting,manyimportantuseshavebeenfoundthathavenothingtodowithit

41.（）买主概不承担与上述货物的包装和运输有关的任何成本或费用。

A.Thesellerwillnotberesponsibleforsolvinganyproblemsinconnectionwiththepackingordeliveryoftheabovegoods.

B.Thepurchaserwillnotbotheraboutanycostorexpensesinconnectionwiththepackingordeliveryoftheabovegoods.

C.Thepurchaserwillnotberesponsibleforanymattersinconnectionwiththepackingordeliveryoftheabovegoods.

D.Thepurchaserwillnotberesponsibleforanycostorexpensesinconnectionwiththepackingordeliveryoftheabovegoods

42.你旅游时走陆路还是水路?

43.正在修建的那座桥将于5月完工

五、阅读理解(10题)44.Accordingtothewriter,themainconcernofateachershouldbethedevelopmentofthestudents’______（）

A.socialskills

B.totalpersonality

C.personalqualities

D.intellectualability

45.WhichofthefollowingisNOTthecauseofairpollution（）

A.TrucksB.HeadachesC.BurninggarbageD.Burningcoalandoil

46.AccordingtoParagraph2,whileteachingatHowardUniversity,Duncan（）

A.discoveredspecialnewwaystowritemusic

B.openeddoorsforotherblackclassicalsingers

C.hadthechancetoknowmanyfamousblackmusicians

D.becameknownforwritingandperformingclassicalmusic

47.Thepurposeofthewriteristoprovetheimportanceof_____（）

A.differentreadingskills

B.highereducation

C.mother’shelp

D.fastreadingforcomprehension

48.ThewordsecurityinParagraph1mightmean_____（）

A.safetyB.careC.dangerD.freedom

49.Asummerbuspassishelpfulforteensto______（）

A.findpart-timejobs

B.gooutforfun

C.gotosummerclasses

D.dooutdoorsports

50.Theauthor'sattitudetowardsgiftgivingis（）

A.indifferentB.protestingC.objectiveD.supportive

51.Manyteachersbelievethattheresponsibilityforlearninglieswiththestudents.Ifalongreadingassignmentisgiven,teachersexpectstudentstobefamiliarwiththeinformationinthereadingeveniftheydonotdiscussitinclassorgiveanexamination.Theidealstudentisconsideredtobeonewhoismotivatedtolearnforthesakeoflearning,nottheoneinterestedonlyingettinghighgrades.Whenresearchisassigned,theprofessorintheUnitedStatesexpectsthestudentstotaketheinitiativeandcompletetheassignmentwithlessguidance.Professorswillhelpstudentswhoneedit,butpreferthattheirstudentsnotbeover-dependentonthem.IntheunitedStates,professorshaveotherdutiesbesidesteaching.Oftentheyareresponsibleforadministrativeworkwithintheirdepartments.Inaddition,theymaybeobligedtopublisharticlesandbooks.Thereforethetimethataprofessorcanspendwithastudentoutsideofclassislimited.Ifastudenthasproblemswithclassroomwork,thestudentshouldeitherapproachaprofessorduringofficehoursormakeappointment.

Participationintheclassroomisnotonlyacceptedbutalsoexpectedofthestudentsinmanycourses.Someprofessorsbasepartofthefinalgradeonthestudent’soralparticipation.Althoughthereareformallecturesduringwhichthestudenthasapassiverole（i.e.listeningandtakingnotes）,manycoursesareorganizedaroundclassroomdiscussions,studentquestionsandinformallectures.

Intheteachingofscienceandmathematics,thedominantmodeofinstructionisgenerallytraditionalwithteacherspresentingformallecturesandstudentstakingnote.However,neweducationaltrendshaveemergedinthehumanitiesandsocialsciencesinthepasttwodecades.Studentsineducation,societyandpsychologyclasses,forexample,areoftenrequiredtosolveproblemsingroups,designprojects,makepresentationsandexaminecasestudies.Sincesomecollegeoruniversitycoursesareappliedratherthantheoretical,theystressdoingandinvolvement

Whenresearchisassignedtheprofessor（）

A.willgivethestudentsomenecessaryguidance

B.willnotgivestudentanyguidance

C.preferthatstudentnotbedependentonhimatall

D.expectthestudenttocompleteitunderhisguidance

52.WhoareMrs.SmithandMrs.Jonesmentionedinthefirstparagraph（）

A.Shopassistants

B.Friendsoftheshopmanager’s

C.Tworegularcustomersofthestore

D.Tworegularcustomersofthesupermarket

53.Themainreasonforone'spoormemoryisthat_______（）

A.hisfatherormothermayhaveapoormemory

B.hedoesnotusehisarmsorlegsforsometime

C.hismemoryisnotoftenused

D.hecan'treadorwrite

六、作文题(1题)54.Directions:YouarerequiredtowriteAWelcomingSpeechaccordingtothegiveninformationinatleast100wordsaccordingtothefollowingrequirements.

假如你是一所本科高校的学生会主席，需要在欢迎专升本新同学的活动中致欢迎辞。请写一篇英语欢迎辞，内容应包括欢迎与祝贺、一些学习和生活方面的建议以及良好的祝愿等

参考答案

1.B［翻译］她试图通过手语来解释这个程序。

［考点］词语搭配

【精析】Bbymeansof是固定搭配，表示通过……，以……手段，故选B

2.D我们是时候采取措施打击经济犯罪了。

［考点］词义辨析和虚拟语气

【精析】Dadapt：适应，改编；addict：使上瘾；address：演讲，处理；adopt：采用，采取（措施等），收养。根据句意可知，选D。另外，在Itis（high/about）time（that）…句型中，后面的从句要用虚拟语气，即谓语动词多用过去式，也可用should+动词原形的形式，should不可省略，意为该是……的时候了

3.B冬天是一年中昼短夜长的季节。

［考点］定语从句

【精析】B分析句子结构可知，空处引导一个定语从句，先行词为表示时间的season，从句中缺少时间状语，所以应用关系副词when。故选B

4.D在信上签名的应该是你，而不是我。

［考点］词义辨析

【精析】Dbut：但是，作连词，表示转折；inspiteof：尽管，为介词短语；rather：相当，为副词，可以修饰形容词或副词；ratherthan：而不是，作连词，连接两个并列成分。根据句意可知，选D

5.B抱怨是没有用的，你只能默默忍受这些。

［考点］非谓语动词

【精析】BIt'snogood/use后跟动名词形式作主语，It为句子的形式主语，也可将It'snogood/usedoingsth.视为固定搭配，意为做某事是没有用的。故选B

6.C北京市长称，所有的建设工作将会在明年年底之前完成。

［考点］动词时态和语态

【精析】C根据句中的时间状语bytheendofnextyear（到明年年底）可知，此处表示到将来这一时间点之前已经完成了某事，所以应用将来完成时，即willhave+过去分词的形式。根据句意可知，work和complete之间为逻辑上的动宾关系，所以从句应用将来完成时的被动形式，即willhavebeen+过去分词的形式。故选C

7.A用我的旧电脑换这个相机，你愿意吗？

［考点］词语搭配

【精析】Ainexchangefor为固定短语，意为交换。故选A

8.A依我看来，这是一种完全不同的情况。

［考点］词义辨析

【精析】Aentirely：完全地，彻底地；merely：仅仅，只不过；purely：完全地，纯粹地；fully：充分地。根据句意可知，选A

9.C在太阳下晒太长时间对皮肤有害。

［考点］非谓语动词

【精析】C分析句子结构可知，will前为非谓语动词短语作句子的主语，所以排除D项。而过去分词不能作主语，排除A项。又因为其逻辑主语one'sskin（人的皮肤）与expose（暴露）存在动宾关系，所以应用被动形式。综上可知，本题应选C

10.D值得牢记的是，政府采取的任何措施最终都会影响到人们的日常生活。

［考点］非谓语动词

【精析】Dworth后面可接动名词作宾语，用主动形式表示被动意义。另外，也可将beworthdoing视为固定搭配，意为值得……，做……是有价值的。故选D

11.AAapproachto为固定搭配，意为……的方法、途径，to在这里是介词，后面应跟动名词形式。故选A

12.C与发达国家相比，一些非洲国家在人民的生活水平上还相差甚远。

［考点］非谓语动词

【精析】C此处考查非谓语动词作状语的用法。因为compare与句子主语someAfricancountries存在动宾关系，因此要用过去分词形式

13.D他昨天早上办理了入住手续，将会停留3天。

［考点］词义辨析

【精析】Dcheckup:检查，核实；checkon:核实，检查；checkout:检验，结账离开；checkin:（在旅馆、机场等）登记，报到。根据句意，选D

14.C正是那个喝醉的司机该为这场可怕的交通事故负责，因为他在路上开得太快了。

［考点］强调句

【精析】C分析句子结构可知，because前面的句子是一个强调句。强调句的基本结构为：Itis/was+被强调部分+that/who+其他。本句强调的是主语thedrunkendriver，表示人，因此应用that或who连接。故选C

15.D说到这类电脑的质量，中国制造的绝不比那些进口的差。

［考点］词语搭配

【精析】Dinferiorto为固定搭配，意为比……差的（次的），inferior含有比较含义，不用than而用to引出比较对象。选项A、B、C形式均不正确。故选D

16.DDdiscuss:讨论，商议；catch:抓住；support:支持，支撑；differ:（在观点、意见、信仰等方面）持不同看法，持异议。根据句意可知，选D

17.D村民们被警告不要在河里游泳，因为那条河很深、很危险。

［考点］词义辨析

【精析】Dattend：参加，出席；neglect：忽视，忽略；arrest：逮捕，拘捕；warn：警告，告诫，warnsb.（not）todosth.意为警告某人（不）要做某事，其被动形式为sb.bewarned（not）todosth.。根据句意和搭配可知，选D

18.B要是我是个医生就好了。

［考点］虚拟语气

。根据句意可知，本句是对现在的虚拟，且谓语动词为be，所以应用were。故选B

19.C还没有决定会议在何时、何地举行。

［考点］主谓一致和动词时态

【精析】C句中Whenandwheretoholdthemeeting指的是同一件事情，且是句子的主语，因此谓语动词应用单数形式。另外，根据空处后面的yet可知，本句应用现在完成时，所以应用has。故选C

20.A他们刚在电影院里找个位置坐下，电影就开始了。

［考点］词语搭配

【精析】Ascarcely…when…为固定搭配，意为一……就……；其他三个选项均不能与scarcely搭配使用。故选A

21.IK根据空后的名词短语15years可知，空处应填介词。符合要求的选项有C、K。句意：15年来，来自伦敦大学学院的专家们一直在调查超过6,700名英国人的生活方式。故选K。

22.JA.studied（v.学习，研究）B.continuing（v.继续，持续）C.by（prep.通过）D.who（pron.引导定语从句）E.whose（pron.引导定语从句）F.improve（v.改进，改善）G.truth（n.事实，真相）H.ignored（v.忽视，不予理睬）I.recently（adv.最近，不久前）J.those（pron.那些）K.for（prep.表示一段时间）L.less（adv.更少，较少）J分析句子结构可知，空后的who引导一个定语从句，空处为其先行词，所以空处应填指人的名词或代词。符合要求的选项只有J。those在此处指代上文中的people，此处表达的是“不去（音乐会、演出和博物馆）的那些人”。故选J。

23.HH分析句子结构可知，空处应填引导词，引导一个定语从句，修饰指人的先行词friends。符合要求的选项只有H。句意：学生在上大学时可以学习并交到将持续一生的朋友。故选H。

24.B

25.A

26.D

27.B

28.B

29.C

30.E

31.A

32.D根据下句的回答可知，M是在询问衣服有什么颜色。故选D

33.A

34.Hisabsenceofmindduringthedrivingnearlycausedanaccident

35.希望工程从创立之日起，就得到了中国民众的广泛支持，他们慷慨解囊，捐赠钱财、衣服和教学用品以帮助农村地区的贫困儿童重返校园。这个工程的建立表明，中国有关当局已经最终接受农村的这些现实：那里的生活仍然很困难，同时对于许多儿童来说，上学在经济上是根本行不通的

36.它的发明者说八到十二岁是儿童发展批判性思维能力的年龄

37.B从……冲出来可译为rushoutfrom…，故排除A项。当强调状语时，应将其置于句首，并将谓语动词提至主语之前，形成完全倒装，故排除C和D项。故选B

38.DDA项中的Beingasked表示被动、进行，与题干表达的意思不符，A项还漏译了加班；B项中的Toask常用来表示目的、（出人意料的）结果、将来，还漏译了那天晚上，不符合题意；C项将题干翻译成了两个短句，但是缺少连接词，不符合英语语法规则。故选D

39.地震过后，我们的政府正尽其所能缓解灾区人民的痛苦，并帮助他们重建家园

40.D与……毫无关系应该翻译为havenothingtodowith,A项和B项都错将此翻译为havesomethingtodowith，且A项还错用了notonly…butalso句型。C项翻译为目的状语从句，而汉语句中并无目的状语从句的意思。综合起来只有D项最合汉语句意

41.D买主应译为purchaser；承担可译为beresponsiblefor…；与……有关可译为inconnectionwith。根据分析可知，D项最符合题意。A项将买主错译为seller（卖家）；B项将承担错译为botherabout（过问）；C项将任何成本或费用错译为anymatters（任何事宜）。故选D

42.Areyoutravelingbylandorbysea?【精析】本句考查交通方式的译法。走陆路还是水路可译为by+交通工具的形式，即bylandorbysea

43.ThebridgebeingbuiltwillbecompletedinMay

44.B［考点］事实细节题

【精析】B根据第二段第三、四句Weareconcernedtodeveloptheabilitiesofallourpupilstothefull,notjusttheiracademicability…valuepersonalqualitiesandsocialskills,andwefindthatmixedabilityteachingcontributestoalltheseaspectsoflearning.可知，作者认为老师应该关心学生的全面发展。故选B

45.B［考点］事实细节题

根据第一段第四句Amajorsourceofairpollutionisthegasfumesfromcars.可知，A项正确；根据第二段第二句Theburningofgarbageleadstoairpollution.可知，C