(整理版高中英语)七中高二下学期期中考试英语试题

七中-高二下学期期中考试英语试题考试时间：120分钟试题总分值：150分全卷分第I卷和第II卷。I卷主要为选择题，包括三局部：听力，英语知识运用，阅读理解。II卷为非选择题局部，包括四节：词汇拼写，句子翻译，短文改错和书面表达。注意：将主观性试题答案填写到答题卷相应答题空白处。考试结束后只交答题卷和机读卡。第一卷〔选择题，共90分〕第一局部听力〔共两节,总分值20分〕做题时,先将答案划在试卷上。听力结束后，你将有时间将答案转涂到机读卡上。第一节听力理解〔5段，共15小题；每题1分，总分值15分〕每段播放两遍。各段后有几个小题，各段播放前每题有5秒钟的阅读时间。请根据各段播放内容及其相关小题，在5秒钟内从题中所给的Ａ、Ｂ、Ｃ项中，选出最正确选项，并在答题卡上将该项涂黑。听第一段对话，答复1-3题。1．Whydoesthemanwanttoborrowthewomen’snotes?A.Hemissedtheclasses.B.Heisnotsatisfiedwithhisnotes.C.Hehasnottakenanynotesinclass.2.Whendoesthemanfeelsleepy?A.Onhiswaytoclass.C.Thirtyminutesafterclassbegins.3.Wherewillthespeakersgo?A.Tothelibrary.supermarket.B.Atthebeginningofclass.B.Tothecafeteria.C.Tothe听第二段对话，答复第4-6题。4.Wherewillthemanmostprobablyfindoutaboutthecompany?A.InthebrochuresB.InthelibraryC.OntheInternet.5.Whywillthecompanyaskthemanwhetherheisgoodforthejob?A.Toknowhowhecaresaboutthecompany.B.Toknowwhathecancontributetothecompany.C.Toknowifhecanmakebrochuresforthecompany.6.Whencanthemanaskquestionsaboutthejob?A.Attheendoftheinterview.C.Atthebeginningoftheinterview.听第三段对话，答复第7-9题。B.Inthemiddleoftheinterview.7.Whatdoesthemanthinkofbigparties?A.Teresting.B.Theyareboring.C.Theyare8.Whydoesthewomenlikeparties?A.Theyarethebestwaytomeetpeople.B.Theyarethetimestomeetherbestfriends.C.Theyaretheopportunitiestofindseriousguys.

9.Whatistheprobablerelationshipbetweenthespeakers?A.Colleagues.student.B.Schoolmates.C.Teacherand听第四段独白，答复第10~12题。10.WhatmadeseasideholidaypossibleforBritishfamiliesaroundthemid-19thcentury?A.Betterrailwayservices.B.Theinventionoftherailways.C.Thefastgrowthoftherailways.11.Whycouldn’tordinaryworkingpeopleenjoyholidaysbefore1871?A.Theyhadverylittletimeoffwork.holidays.B.BankswereclosedduringC.Thegovernmentwasnotinterestedinholidays.12.Whatwasofferedattheseasidetoattractholidaymakers?A.Freeaccommodation.entertainment.B.Incomerise.C.Cheap听第五段话，答复13~15题13Howdoesthemangotowork?A.Bycar.B.Bybus.C.Bytrain.14.Howlongwilltheman’sflighttake?A.About15hours.B.About16hours.C.About18hours.15.Whatdoesthemandoinordertogettosleepontheplane?A.Hegetshimselftiredontheplane.B.Hestaysuplatethedaybeforetheflight.C.Hetakesmedicineorhasabeerontheplane.第二节：听取信息〔共5小题；每题1分，总分值5分〕听下面一段独白，请根据题目要求，从所听到的内容中获取必要的信息，填入答题卡标号为16～20的空格中。听录音前，你将有10秒钟的阅题时间，录音读两遍。你将有60秒钟的作答时间。注意：将答案转填到答题卷相应答题空白处。RonaldReagan(1911～)第二局部英语知识运用〔共两节,总分值45分〕第一节单项选择(共15小题；每题1分，总分值15分)从A,B,C,D四个选项中，选出可以填入空白处的最正确选项，并在答题卡相应番号后将该项涂黑。21.Whenitcomestobringingupchildren,somepeoplesay______strictcontrolproduces______well-behavedchildren.A./,theB.the,/C./,/D.the,the22.MoresubwayswillhavebeenbuiltinChengduinafewyears’time,______itmucheasierforpeopletotravelformoneplacetoanother.A.makingB.madeC.tomakeD.havingmade23.Findwaystopraiseyourchildrenoften,_____you’llfindtheywillopentheirheartstoyou.A.tillB.orC.andD.but24.–Sorry,sir.I’mlateagain.–Whatexcusewillyou_______foryourselfthistime?A.setupB.takeupC.pickupD.makeup25.–What’shisreactionwhenyoutoldhimthathehadfailedthetest?Didhefeelsad?–_____,hedidn’tturnsurprisedandevenaskedmetohavedinnertogether.A.OntheotherhandB.InshortC.OnthecontraryD.Asaresult26.Strongtyphoonsstruckthisareavery_____.Normally,theyformandcomeherebetweenJulyandAugusteveryyear.A.generallyB.regularlyC.usuallyD.suddenly27.Itseemsthatmosteducators______theplanforAdvancedAssessmentforAdmission,whichgivesrisetoacompletereformofCollegeEntranceExams.A.consistofB.complainofC.approveofD.dreamof28.Thenewly-builtshoppingmallprovidesgoodsthatcompete______productquality,reliabilityandaboveallvariety.A.inhonoroftheformofB.intermsofC.inthenameofD.in29.Hiswritingissoconfusingthatit’sdifficulttomakeout______itisthatheistryingtoexpress.A.thatB.howC.whoD.what30.Givingupmyjobtogobacktofulltimeeducationwasabig_______,butnowIknowitwasthebestdecisionIevermade.A.projectB.commitmentC.competitionD.ambition31.Auniversityisaneducationalinstitutionwhich______degreesandcarriesoutresearch.A.rewardsB.awardsC.representsD.presents32.Anunhappychildhoodmayhavesomenegativeeffectsonaperson’scharacter;however,theyarenotalways________.A.practicalB.avoidableC.permanentD.optimistic

33.They________ontheprogramforalmostonemonthbeforeIwasarrangedtohelpthem.Now,we________onitasnoresulthascomeout.A.hadbeenworking;arestillworkingB.hadworked;werestillworkingC.havebeenworking;haveworkedD.haveworked;arestillworking34.Mr.Johnsonhasappealed________thepublic________anyinformationabouthismissingdaughter.A.to;forB.for;toC.to;againstD.against;to35．Itisinthisveryvillage,________Marywasborn35yearsago,________shewillbuildherfirstschool,________inspireseveryonetohelpher.A.where;that;whichB.that;that;thatD.where;when;thatC.that;when;which第二节完形填空〔共阅读下面短文，掌握其大意，然后从最正确选项。20小题，每题1.5分，总分值30分〕36－55各题所给的A、B、C、D四个选项中，选出Julietappearedonthestage.Shetookadeepbreathandbeganto36.NowshewasPortia,astrong-willed37inShakespeare’sTheMerchantofVenice.Thetheaterwasfilledwithpeople.Shewasspeakingwithapowershehadneverbeforeexperienced,thewordsflowing38formher.39,Juliethadneveractedinherlifebeforetheaudition(选拔试演).She40beinginfrontofotherpeople.Shewasvery41atschool.Shehadneverthoughtshewasgoodenoughatanythingto42muchattention.Shestayedmostlytoherself,making43friends.Shehadexcellentgrades,44shealwaysthoughtthatsomethingwasmissing.Twoweeksbeforetheaudition,Juliet’smotherhadheardaboutitand45hertojoinin.“Ican’tthinkofanyoneelsebettersuitedto46thepart.Rememberalltheplaysyouusedtoactoutforus?〞Hermotherwouldn’tletthe47drop.“You’rejustalittlescared.Everyonegetsscared.Youknowyou48doit.Thetrickistolookpastthe49tofindtheloveofwhatyou’redoing.’’SoJuliethadmadeanappointmentwiththeheadoftheDramaClub.Shehadreadtheplayandfoundherselfexcitedbythe50ofspeakingsuchrichwords.InsecretshepracticedPortia’spart,51thelinesbyrepeatingthemoverandover.Itwasn’thard;she52everyminuteofit.Everytimeshespokethewords,shehadanew53ofthelines,asifShakespearehadwrittenPortiaonmanylevels.Onthedayoftheaudition,she54twoofPortia’sfamousspeechesfortheauditors.Whenshehadfinished,theheadoftheDramaClubannouncedthe55washers.36.A.sing37.A.member38.A.weaklyB.danceC.speakD.reportB.actressB.rapidlyC.playerC.slowlyC.AfterallD.characterD.smoothlyD.Inall39.A.AtfirstB.Infact40.A.hatedB.enjoyedC.appreciatedD.regretted41.A.honestB.shyC.politeD.patient42.A.avoid43.A.few44.A.or45.A.forced46.A.accept47.A.matterB.focusB.afewB.soC.payD.attractC.severalD.manyC.forD.butB.requestedB.playB.roleC.encouragedD.remindedC.offerD.learnC.interestD.grade48.A.canB.mustC.mayD.should49.A.angerB.painC.sadnessD.fear50.A.purposeB.wayC.ideaD.importance51.A.memorizingB.organizingC.checkingD.improvingC.expectedD.bore52.A.dislikedB.loved53.A.considerationB.descriptionC.selection54.A.practicedB.plannedC.deliveredD.understandingD.performed55.A.partB.playC.speechD.position第三局部阅读理解〔共两节，总分值40分〕第一节阅读以下短文，从每题所给的四个选项(A、B、C和D)中，选出最正确选项，并在答题卡上将该项涂黑。(共15小题，每题2分，总分值30分)ARalphEllisondiedinnineteenninety-four,attheageofeighty.Afterhisdeath,abookofhisstories,“FlyingHome〞,waspublished.Shortlybeforehisdeath,Ellisonhadtoldsomeonethathissecondnovelwasalmostfinished.Hehadworkedonthenovelforfortyyearswithoutfinishingit.Partsofthebookhadappearedinmagazinesduringthenineteensixtiesandseventies.Ellisonhadtorewritethenovelafteralargepartofitwasburnedinafireathishomeinnineteensixty-seven.Thenovelwassaidtobetwothousandpageslong.Finally,hisfriendJohnCallahanputthebooktogetherafterEllisondied.Thenovelwaspublishedinnineteenninety-nine.Itwascalled“Juneteenth〞.Since“InvisibleMan〞waspublished,manyAmericanwritershavesaidhowmuchEllisoninfluencedthem.Innineteenninety,anotherblackwriter,ChariesJohnson,wasgiventheNationalBookAward.Inreceivingtheprize,JohnsonthankedRalphEllisonforleadingthewayforblackwriters.Ellisonwaspresentattheceremony.HethankedJohnson.Thenheexpressedhisbeliefthatblackwritersshouldnotbeinfluencedonlybyotherblackwriters.Hesaid:“Youdonotwriteoutofyourskin.Youwriteoutofyourideasandthequalityofyourmind.〞56.Accordingtothepassage,“Juneteenth〞.A.iswrittenbyJohnCallahanB.isEllison’ssecondnovelC.waspublishedinEllison’sseventiesD.waspublished10yearsafterhisdeath57.Wecanseefromthepassage,whenEllison’sfirstnovelappeared,hewasinhis.A.twentiesB.thirtiesC.fortiesD.fifties58.Whatcanweinferfromthepassage?A.Ellisonwasagreatwhitewriter.B.“FlyingHome〞isoneofEllison’snovels.C.IttookhalfofEllison’slifetimetowrite“Juneteenth〞.D.Ellisondidn’tlivetoseethepublicationof“ShadowandAct〞and“GoingtotheTerritory〞.BEversincetheywerefirstputonthemarketintheearly1990s,geneticallymodified(GM,转基因)foodshavebeenincreasinglydevelopedandmarketedinmanycountriesintheworld,mainlyonthebasisoftheirpromisetoendtheworldwidefoodcrisis.ButcanGMtechnologysolveworldhungerproblems?Evenifitwould,isitthebestsolution?Despitewhatitpromises,GMtechnologyactuallyhasnotincreasedtheproductionpotentialofanycorp.Infact,studiesshowthatthemostgrownGMcrop,GMsoybeans,hassufferedreducedproductivity.Forinstance,areportthatanalyzednearlytwodecadesofresearchonmajorGMfoodcropsshowsthatGMengineeringhasfailedtosignificantlyincreaseUScropproduction.Somethingelse,however,hasbeenontherise.WhileGMseedsareexpensive,GMcompaniestellfarmersthattheywillmakegoodprofitsbysavingmoneyonpesticides〔杀虫剂〕.Onthecontrary,USgovernmentdatashowthatGMcropsintheUShaveproducedanoverallincreaseinpesticideusecomparedtotraditionalcrops.“Thepromisewasthatyoucoulduselesschemicalsandboostproduction.Butnetheristrue,〞saidBillChristison,PresidentoftheUSNationalFarmCoalition.Atthesametime,theauthorsofthebookWorldHunger:TwelveMythsarguethatthereactuallyismorethanenoughfoodintheworldandthatthehungercrisisisnotcausedbyproduction,butbyproblemsinfooddistributionandpolitics.Theseindeeddeserveoureffortsandmoney.Meanwhile,theriseinfoodpricesresultsfromtheincreaseduseofcropsforfuelratherthanfood,accordingtoaWorldBankreport.Asamatteroffact,scientistsseebetterwaystofeedtheworld.AnotherWorldBankreportconcludedthatGMcropshavelittletooffertothechallengesofworldwidepovertyandhunger,becausebetterwaysoutareavailable,amongwhich“green〞farmingissupposedtobethefirstchoice.59.Theauthordevelopsthesecondparagraphmainly.A.byclassificationC.byexampleB.bycomparisonD.byprocess60.Whatdoestheunderlinedword“boost〞inthethirdparagraphprobablymean?A.Control.B.EvaluateC.Obtain.D.Increase.61.GMcompaniespromisefarmersthattheywillbenefitfrom______________.A.practicing“green〞farmingB.theuseoflesschemicalsD.usingmorecropsforfuelC.fairdistributionoftheircrops62.WhichofthefollowingbestdescribestheattitudeoftheauthortowardsGMtechnology?A.OptimisticB.DefensiveC.DisapprovingD.Casual(不关心的)CTheyarethesortoffriendswhoaresoclosetheytrusteachotherwiththeirlives.Ifonefallstheotheristheretocatchhim.TheyareWellman,whoselegswerepermanentlyinjurednineyearsagoinarock-climbingaccident.andCorbett,anexperiencedrockclimber.Together,theyclimbedupHalfDome,thefamous2,000-footrockintheYosemiteNationalPark,throughoneofthemostdifficultroutes.Duringtheclimb,Corbetttookthelead,hitinthemetalspikes〔尖状物〕thatguidedtheropesandclimbedup.Then,afterWellmanpulledhimselfuptherope,Corbettwentdowntoremovethespikesandclimbedupagain.Thisprocesswasrepeatedtimeandagain,inchbyinch,for13days.Wellman’sjobwasnoteasyeither.Hegothimselfuptheropethroughupperbodystrengthalone.Inall,Wellmanfiguredthathehaddone5,000pull-upsuptheropeontheclimb.However,whenthetwomenfirstmet,theynevertalkedaboutclimbing.“HeknewthatwashowIgotinjured.〞Wellmansaid.UntilonedayWellmandecidedthathewantedtoclimbagainandtheystartedtraining.TheirclimbofHalfDomewasnotallsmooth.Atonepoint,piecesofrockgaveway,andCorbettdroppeddownquickly.Wellmanlockedtheirropeinplace,stoppingthefallat20feet.Hisquickactionprobablysavedhisfriend’slife.“Yourpartnercansaveyourlifeyoucansaveyourpartner’slife,〞Wellmansaidasthepairreceivedcongratulationsfromfriends.“Therearerealcloseties.〞63.WhichofthefollowingwasachallengeforCorbettinclimbingHalfDome?A.Toclimbuptoremovethespikes.B.Toclimbittwice.C.Todo5,000pull-upsuptherope.D.Tolocktheropeinplace.64.Whydidthetwomennevertalkaboutclimbingwhentheyfirstmet?A.Corbettwaspoorlytrained.B.Wellmanhadlostinterestinclimbing.C.Corbettdidn’twanttohurtWellman.D.Wellmanhadn’tdecidedwhethertoclimbagain.65.WhatdoweknowaboutWellman?A.HeclimbedHalfDomebyhimself.B.Hewasdisabledinatrafficaccident.C.Hestoppedrock-climbingforsometime.D.HewassavedbyCorbettduringtheclimb.66.Themainideaofthetextisthat________.A.twoheadsarebetterthanoneB.friendshipispreciousinlifeC.thedisabledshouldnevergiveupD.amancanbedestroyedbutcannotbedefeatedDScientistSays‘No’toHumanCloning“I’venevermetahumanworthcloning,〞sayscloningexpertMarkWesthusinfromhislabatTexasA&MUniversity.“It’sastupidendeavor.〞That’saninterestingchoiceofadjective,comingfromamanwhohasspentmillionsofdollarstryingtoclonea13-year-olddognamedMissy.Sofar,heandhisteamhavenotsucceeded,thoughtheyhaveclonedtwocowsandacat.Contrarytosomemediareports,Missyisnotdead.TheownerwantsatwintocarryonMissy’sfinequalitiesaftershedoesdie.Theprototype〔原型；雏形〕is,byallaccounts,athletic,good-naturedandsupersmart.Missy’smasterdoesnotexpectanexactcopyofher.Heknowsherclonemaynothaveherqualities.Inastatementofpurpose,Missy’sownerandtheA&Mteamsaytheyare“bothlookingforwardtostudyingthewaysthatherclonesdifferfromMissy.〞Besidescloningagreatdog,theprojectmaycontributeinsightintotheoldquestionofnaturevs.nurture.Itcouldalsoleadtothecloningofspecialrescuedogsandmanyendangeredanimals.However,Westhusiniscautiousabouthiswork.Heknowsthatevenifhegetsadogpregnant,theoffspring,shouldtheysurvive,willfacetheproblemsshownatbirthbyotherclonedanimals:abnormalities(变异；变态)likeimmaturelungsandheartandweightproblems.“Whywouldyoueverwanttoclonehumans,〞Westhusinasks,“whenwe’renotevenclosetogettingitworkedoutinanimalsyet?〞67.By"stupidendeavor",Westhusinmeanstosaythat________.A.animalcloningisnotworththeeffortatallB.animalcloningisabsolutelyimpracticalC.humancloningshouldbedoneselectivelyD.humancloningisafoolishundertaking68.WhatdoesthefirstparagraphtellusaboutWesthusin’sdogcloningproject?A.Itssuccessisalreadyinsight.B.Itsoutcomeremainsuncertain.C.Itistobeafailure.D.Itisprogressingsmoothly.69.BycloningMissy,MarkWesthusinhopesto________.A.studythepossibilityofcloninghumansB.searchforwaystomodifyitstemperamentC.examinethereproductivesystemofthedogspeciesD.findoutthedifferencesbetweenMissyanditsclones70.Itcanbeseenthatpresentcloningtechniques________.A.stillhavealongwaytogobeforereachingmaturityB.havebeenwidelyusedinsavingendangeredspeciesC.provideinsightintothequestionofnaturevs.nurtureD.haveprovedquiteadequateforthecloningofhumans第二节信息匹配〔共5小题，每题2分，总分值10分〕根据短文内容，从短文后的选项中选出能填入空白处的最正确选项。注意：将答案转填到答题卷相应答题空白处。Beingagoodstudentdoesn’tmeanyouhavetodropallsocialactivitiesanddiveintoyourbooks.Itisstillpossibletohaveahealthysociallifewhilegettinggoodgrades.___71_____Hereishowyoucanachieveit.Decideforyourselfatthestartofthetermthatyouwon’tletyourschoolworksweepyouaway.___72______Writedownyourweeklyscheduleonapieceofpaper.Chancesare,you’llhavesmallgapsbetweenclassesduringtheweekandmorefreetimeattheweekend.Makesurethateverytimeyoufindyourselfinoneofthosebetweenclassgapsyouusethetimeefficiently._____73_____Setasideatleastonelargeamountoftimeeachweekasfreetime.Keepinmindthelawofdiminishingreturns(收益递减)．Pastacertainpointmorehoursstudyingwillbeoflittlebenefit.____74_____Protectbothyourfreetimeandyourschooltimecarefully.Ifonestartstoinfringe(侵犯)ontheotherthatisjustthebeginningofalong,slipperydownhillslope..____75_____Thisway,youcanco-ordinate(协调)yourfreetimewiththeirs.Wheneverpossible,findsocialactivitiesthattakeyouoffcampusandawayfromyourschoolwork.A.Balanceisthekey.B.Encourageyourfriendstofollowasimilarplan.C.Itisveryimportanttobedeterminedaboutthis.D.Readafewpagesofyourschoolbookordosomequickchores〔杂活〕,forexample.E.You’rebetteroffspendingthistimewithfriends.第II卷〔非选择题，共45分〕第四局部词汇拼写与书面表达〔共四节，共45分〕第一节单词拼写：根据以下句中所给单词的首字母提示，写出恰当单词的正确形式，每空一词。〔共10小题，每题分,总分值5分〕76.Afterapresentation,Chinesestudentsareusuallyexpectedtoraiseanyquestion.Ifthereisnoquestionasked,thesilenceisvery__________________(为难).77.Whenpeoplearetalking,itisoftenimpolitetoi_________________theirconversationwithoutaskingforpermission.78.Astimegoesby,youngpeoplemay________________(积累)moreandmoreexperiencetohaveabetterunderstandingofthisworld.79.Itis_____________(估计)thatthelisteningsectionwillbeincludedinCollegeEntranceExamsnextyear.80.Doyouknowanyanimalswhichare____________(过敏)tohumans?81.Isthereanysignofrecoveryfromthisglobalf___________crisisaftersomanymeasureshavebeentakenbythegovernments?82.DuringthesummercampintheUnitedStateslastyear,hewassogladtobeaqualifiedi____________forsometeacherswhocouldn’tspeakmuchEnglish.83.Nancyhitherheadonthedoorandshewas_____________(不省人事的)forseveralminutes.84.Manypeoplebelievecloningisb___________tohumansbecauseofitsmanyadvantages.85.Itissonicetob_________thefreshspringairinourschoolgardenduringthebreaks.第二节句子翻译：〔共20个空，每空0.5分，总分值10分〕86、她们一开始演奏就立刻证明了“女子十二乐坊〞的成员都是世界上最具有天赋的音乐家。________________theystarttoplay,________________themembersofTwelveGirlsBandareamongthemostgiftedmusiciansintheworld.87、设想这样一种情形，双方都认识的人离开了房间、咖啡馆或聚会，两个陌人生开始交谈。Imaginea________________twostrangersaretalkingtoeachother________________theybothknowhaslefttheroom，orthecaféorparty，etc.88、无论这个新世界如何，总会好过他刚刚离开的那个世界。_________thisnewworldwas，ithadtobe_________________________hehadjustleft.89、我太吃惊了，以至于不知所措只是拿着钱站在那里。Iwas_______________________Ijuststoodthere，_______thenotesinmyhands.

90、它被一致认为是写得最好的科幻小说之一。It______generally_____________itisoneofthebestsciencefictionstoriesever________.第三节短文改错：〔共10小题，每题1分，总分值10分〕此题要求改正所给短文中的错误。对标有题号的每一行作出判断：如无错误，在该行右边横线上画一个沟〔√〕；如有错误〔每行只有一个错误〕，那么按以下情况改正；此行多一个词：把多余的词用斜线〔\〕划掉，在该行右边横线上写出该词。并也用斜线划掉。此行缺一个词：在缺词处加一个漏字符号〔∧〕，在该行右边横线上写出该加的词。此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。注意：原行没有错的不要改第四节：4月2日、起因均由清明节上坟烧燃放鞭炮等野外用火导致。请你就如何过文明平安的清明节篇英文稿件向英语报投稿。内容要点包括：扫墓的重大意义：发扬尊祖敬宗的传统美德；外出踏青，享受春光。扫墓可能造成的危害〔至少两点〕。3.你的意见。注意:1.不要逐条翻译；2.可以添加符合情理的细节内容3.词数:120左右。短文的开头和结尾已给出,不计入总词数。参考词汇：纪念commemorate，逝者deceased，鞭炮firecracker书面表达(共20分)据商报讯，3日两天，全省共发生森林火灾30余起，纸、扫墓活动发表自己的看法，并写一1.清明节2.清明节和过渡性语言；DearEditor,ItwasreportedinChengduCommercialDailythatthenumberofforestfireshadincreasedupto30onlyonApril2ndandApril3rd,allof