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因式分解：ab2﹣a＝ ．
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因式分解
因式分解ab2﹣2ab+a
.因式分解a3﹣ab2=.
因式分解ab﹣a.
因式分解a3﹣ab2=
因式分解ab2－4ab＋4a＝________.
因式分解a2﹣ab=
因式分解8a3﹣2ab2=.
对代数式a2-2ab+b2进行因式分解属于的问题.
因式分解a3﹣ab2=______.
因式分解:3a2b-4ab=.
因式分解a2+ab=.
因式分解a3－ab2=.
因式分解a2b＋2ab＋b＝.
因式分解ab2﹣a=______.
因式分解a3﹣4ab2
因式分解a3﹣2a2b+ab2=
因式分解ab2﹣6ab+9a=.
因式分解a3-ab2=.
因式分解ab–a=________.
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7.5分ThethemeparkyouareprobablymostfamiliarwithisDisneyland.Itwillbringyouintoamagical1andmakeyourdreamscometruewhetheryouaretravelingthrough2ormeetingyourfavoritefairytaleorDisneycartooncharacter.Asyouwanderaroundthefantasyamusementparkyoumay3SnowWhiteorMickeyMouseinaparade.OfcourseDisneylandalsohasmany4ridesfromgiantswingingshipstoterrifyingfree﹣falldrops.Withalltheseattractionsnowondertourismisincreasing5thereisaDisneylandifyouwanttohavefunandmorethanfuncometoDisneyland! 1A.world B.country C.school D.village 2A.house B.shop C.space D.room 3A.buy B.have C.see D.make 4A.moving B.exciting C.hurting D.damaging 5A.whatever B.whichever C.whoever D.wherever
1分我们学校占地240多亩. Ourschoolover240mu.
8分ItwassaidthatinherfortiesRoseGreenstartedtolearnpaintingbyherselfandbecameoneofBritain'sbest﹣knownpainters.Shediedpeacefullyearliertodayattheageof81. Whatsheisfamousforispaintingacolorfulandfunnyworldoffatwomen.ThecomedianVictoriaWoodoncedescribedherasRubenswithjokes.DescribingherownworksheoncesaidIdon'tknowhowmypictureshappentheyjustdo. Herpicturesgainedalotoffansforher.Herfanshadlongbeenangrywiththemajorartgalleriesforfailingtonoticeherworkswhichsellforonly40000.In2008theystartedafightagainstTateModernfornotbuyingRose'spaintings.ButtowardstheendofherlifesheenjoyedwiderpraisewithamajorexhibitionlastyearattheBalticgalleryinGateshead.JessWilderco﹣ownerofLondon'sPortalGalleryhadshownherpaintingsformorethan30years. ShehasthreesistersandRoseleftschoolat14andin1943movedtoLondonandbecameashowgirlinasinginghall.In1946shemarriedherchildhoodfriendJohnwithwhomsheranabarforashorttime.TheirsonalsonamedJohnwasbornin1950andtheymovedtoSouthernRhodesiain1951﹣amovesaidtobeaturningpointforRose.Afterpickingupsomepaintsbelongingtohersonshebegancreatingpicturesonwood.ThefamilylatermovedtoPlymouthwhereinthesummermonthstheyranahotel. Alocalexhibitioninthemid﹣1970sattractedmanypeoplefollowedbyacoverintheSundayTimesmagazineandRose'sfirstLondonexhibition.In1979MelvynBraggmadeafilmaboutRose. 1WhatcanweknowaboutRoseGreen'spaintings? A.Theywereallboughtbyallkindsofartgalleries. B.Theyhelpedbringchildrenalotofhappiness. C.Theywereallfinishedwhenshewasyoung. D.Theyweremainlyaboutfatwomen. 2IntheopinionofRoseGreen'sfans. A.TateModernshouldbuyGreen'spaintings B.RoseGreen'sworksweresoordinarythatnogallerynoticedthem C.TateModernrefusedGreen'spaintingsfortheirbeingofnovalue D.RoseGreen'sworksweretooexpensivetobuy 3ItcanbeinferredthatonherwaytobeinganartistRoseGreen. A.gotalotofhelpfromherson B.madeafilmtosupportherlifeasanartist C.beganadifferentlifeaftermovingtoSouthernRhodesia. D.beganherlifeasafamousartistaftermovingtoPlymouth 4WhichofthefollowingistherightorderofRoseGreen'sexperiences? a.movedtoSouthernRhodesia b.becameashowgirlinasinginghall c.marriedJohn d.ranabar e.begancreatingpicturesonwood f.movedtoPlymouth A.b﹣d﹣f﹣e﹣a﹣c B.b﹣c﹣d﹣a﹣e﹣f C.a﹣d﹣e﹣f﹣b﹣c D.d﹣e﹣a﹣b﹣c﹣f
6分Moviemakersatonetimeworriedthattheymightbeputoutofbusinessbytelevision.Recentlyhowevermoreandmorepeoplehavebeengoingtothemovies.ThismaybepartlybecausetheeconomicsituationinAmericahasworsened.Whenatthemoviespeopleforgettheirtroublesastheygetinvolvedinthestoryonthescreen.Alsodirectorshaverecentlybeenproducingpicturesthatlargenumbersofpeoplewanttosee. Americansinthemillionsarereturningtotheirloveaffairwiththemovies.MotionpictureindustryexpertsseetwomainfactorsresponsibleforthisanincreasedneedbyAmericanstoescapefromeconomicworriesandalargenumberofnewmovieswithbroadaudienceappeal. Moviemakersadmitthattheirrisingpopularityispartlytheresultofpooreconomicconditionswhichtraditionallybringanincreaseintheaterattendance.WhenpeoplearefearfulaboutthefuturetheylookforescapecommentsJackValentipresidentoftheMotionPictureAssociationofAmerica.Inashadedtheaterwitha65﹣footscreenyouloseyourselffortwoandahalfhoursandpeoplefindthisbeneficial. 1Whatdidmoviemakersworryaboutbefore? A.Thatnoonewouldgotothecinema. B.Thatmoviescouldn'tbeabusinessanymore. C.Thattheirmoviesmightbeplayedontelevision. D.ThatpeoplepreferredwatchingTVtoseeingfilms. 2Whyaresomanypeoplegoingtoseemoviesnow? A.Becausepeoplenowhavemuchmoremoney. B.Becausepeoplehavetroubles. C.Becausepeoplewantedtoescapefromreallife. D.BecausewatchingmoviesisnowmuchcheaperthanwatchingTV. 3What'sthepassagemainlyabout? A.ThatmoreAmericanpeoplearewatchingmoviesthanbefore. B.Thattelevisionwilltaketheplaceofmovies. C.America'seconomicdepression. D.ThatAmericansprefertowatchmoviesratherthanwatchTV.
30分假设你是李华有一些国外的学生要来你校访问了解你们学校学生学习及高中文理科的选择.请你写一篇文稿介绍你所做的选择并说明选择的理由. 注意1开头和结尾已为你写好不计入总词数 2词数100左右 3短文中不能出现与本人相关的信息.参考词汇文科arts理科science Goodafternooneveryone. Welcometoourschool! Thanks!
8分Manyofushavebecomesoreliant依赖的onoursmartphonesthatweusethemtocarryoutunbelievable221taskseveryday. Astudyof2000smartphoneownersshowsthattheaverageuserreachesfortheirphoneat731ameachmorningtocheckpersonalemailsandFacebook.Andbeforethey'veevengotoutofbedmostofthemchecktheweatherreadthenewsandsendatextortwotofriends.Italsoappearedthatpeoplewillcheckthetraintimesdotheirbankingandupdatewhattheywantearlyintheday. Inanaverageweektheresearchdiscoveredthatuserspickuptheirphonemorethan1500timestocompletedifferenttasksfromemailstoplayinggamesandpostingtosocialmedia.Andtheaveragesmartphoneuserisontheirphoneforthreehoursandsixteenminutesaday.Thisamountstoalmostonefulldayaweekusingtheirphonesoit'snowonderalmostfourintenusersadmittedfeelinglostwithouttheirtool. Manyownersalsoadmittedtofindingthemselvesusingtheirphonewithoutrealizingthey'redoingsowithtwothirdssayingtheyhavemanagedtologin登录andbrowse浏览Facebookwithoutthinking.Andsurprisinglyfourintensaidtheyhaveatonetimeoranothercheckedtheiremailsautomatically自动的withoutthinking. Thestudyhasalsoshowedthatoursmartphonesarenowbecomingmoreofago﹣to﹣gadgetreplacingdesktopsandlaptopswhichpeopleonlyturntoforonaverage140tasksinatypicalday. 1Taskscarriedoutonsmartphonesareaboutmorethanthoseondesktopsandlaptops. A.221 B.140 C.1.500 D.80 2Whatcanbeinferredfromthefourthparagraph? A.Peopleoftenusetheirphoneunconsciously无意识地. B.OnethirdmanagedtobrowseFacebookwithoutthinking. C.Halfofpeoplecheckedtheiremailsautomatically. D.Sixintenpeopledon'tchecktheiremails. 3Theunderlinedwordgo﹣to﹣gadgetinParagraph5means. A.afunnyexpression B.animportantstudy C.atoolwithintelligence D.aninterestinggame 4What'sthebesttitleforthepassage? A.Arewedependentonoursmartphones? B.Thefunctionsofsmartphones C.Thedisadvantagesofsmartphones D.Smartphoneswilltaketheplaceofdesktopsandlaptops
若a+b＝﹣3ab＝2则a2+b2＝．
1分Iwouldn't交换myphonewithhimforanything.
1分Igavehima警告nottogotherealone.
如图AB是半圆O的直径点CD是半圆O的三等分点若弦CD＝6则图中阴影部分的面积为．
如图⊙O是四边形ABCD的外接圆．ACBD是四边形ABCD的对角线BD经过圆心O点E在BD的延长线上BA与CD的延长线交于点FDF平分∠ADE． 1求证AC＝BC 2若AB＝AF求∠F的度数 3若⊙O半径为5求DF的长．
1分Itisreportedthatinthisareawaterissafetodrinkit.
2018年8月中国铁路总公司宣布京津高铁将再次提速担任此次运营任务是最新的复兴号动车组提速后车速是之前的1.5倍100千米缩短了10分钟问提速前后的速度分别是多少千米与小时
1分我突然想起我没有锁门. methatIhadleftthedoorunlocked.
1分Haveyouever经历aterribleearthquake?
如图在平行四边形ABCD中AC⊥DEAE＝ADAE交BC于O． 1求证∠BCA＝∠EAC 2若CE＝3AC＝4求△COE的周长．
1分报告显示我们还需做出更大的努力. Thereportsshowthatweneedto.
1分Bythetimeitendedmorethan700peoplehavebeeninjured.
如图在Rt△ABC中∠ACB＝90°AC＝10BC＝5将直角三角板的直角顶点与AC边的中点P重合直角三角板绕着点P旋转两条直角边分别交AB边于MN则MN的最小值是．
1分Bothsidesshouldsticktotheagreementwhenitis签署.
1分Thereare800tornadoesintheUScausedabout800deathsand1500injuries.
1分这个小镇只有一万人口 Thesmalltown10000.
8分Nowadaysthereisaninterestingthinghappeningduringthecourseofthecommunicationsrevolutionswestoppedinpersontalkingtoeachother. RecentlyIwasinaparkhavingatalkwithagoodfriendandatthatmomenthissmartphoneranginterruptingourconversation.Therewewerewalkingandtalkingonabeautifulsunnydayand…Ibecameinvisibleabsentfromtheconversation. Thetelephonewhichusedtoconnectyoutotheabsentnowmakespeoplesittingclosetoyoufeelabsent.WhyisitthatthemoreconnectedwegetthemoredisconnectedIfeel?Everyadvanceincommunicationstechnologyisatragedytotheclosenessofhumaninteraction.WithemailandinstantmessagingovertheInternetwecannowcommunicatewithoutseeingortalkingtooneanother.Withvoicemailyoucanconductentireconversationswithouteverreachinganyone.IfmymomhasaquestionIjustleavetheansweronhermachine. Asalmosteverycontactwecanimaginebetweenhumanbeingsgetsautomatedwearenowfeelingmoredistantfromoneanother.Youcan'tevencallapersontogetthephonenumberofanotherpersonanymore.Directoryassistanceisalmostalwaysfullyautomated. Iamnotagainstmoderntechnology.IownacellphoneanATMcardavoicemailsystemandanemailaccount.Givingthemupisn'twise…they'reagreathelptouse.It'ssomeoftheirpossibleconsequencesthatmakemefeeluneasy. MoreandmoreIfindmyselfhidingbehinde﹣mailtodoajobmeantforconversationorbeingrelievedthatvoicemailpickedupbecauseIdidn'treallyhavetimetotalk.Theindustrydevotedtohelpingmekeepintouchismakingmelonelier. SoI'veputmyselfontechnologyrestrictionnoinstantmessagingwithpeoplewholivenearmenocellphoninginthepresenceoffriendsnolettingthevoicemailpickupwhenI'mathome. 1Whichofthefollowingwouldbethebesttitleofthepassage? A.TheAdvanceofCommunicationsTechnology. B.TheStoryofCommunicationsRevolution. C.TheConsequencesofModernTechnology. D.TheAutomationofModernCommunications 2Thesentencenowmakespeoplesittingclosetoyoufeelabsentmeansthat. A.thepeoplesittingbesideyouhavetogoawaytoreceiveaphonecall B.moderntechnologymakesithardforpeopletohaveaface﹣to﹣facetalk C.youcanhardlygetintouchwiththepeoplesittingbesideyou D.peoplecannowdotheirworkwithoutgoingtotheoffice 3Thewriterfeelsthattheuseofmoderncommunicationsis. A.embarrassing B.disappointing C.satisfying D.encouraging 4Thepassageimpliesthat. A.moderntechnologyisinterruptingourcommunications B.moderntechnologyisbridgingthepeople. C.moderntechnologyisdevelopingtoofast D.moderntechnologyisseparatingthepeople
10分OnceuponatimetherewasarespectedmonkwhosenamewasWisdomfollowedbytwoyoungmonkswalkingfromonetowntoanother1theyfoundalake.Tiredandthirstytheystoppedtohavearest.2oldmonkpointingtothelakeaskedthe3youngonetogethimsomewater. Justwhilethemonkarrivedatthelakehesawacart4drawbyanoxstartedcrossingthelake5madethewaterverymuddy.ThelittlemonkthoughtHowcanItakethismuddywatertomymastertodrink!Sohecameback6anywatersayingThewaterisverymuddy.Idon'tthinkthewaterissuitabletodrink. Afteramomentthesamemonkwasasked7getwateragain.Whenhewentbacktothelakehefoundthatthemud8settledownalreadysohecollectedbackapotofwater.WisdomlookedatthewaterhappilyandthenupatthemonkTomakethewaterclean9youneedtodoisjusttoletitbeandthemudwouldsettledownonitsown. Yourmindisalsothesameasthemuddywater.Whenit10disturbjustletitbe.Giveitalittletimeanditwillsettledownitself.
1分Withthe发展ofeducationmanystudentscanreceivegoodeducation.
如图①在矩形ABCD中点P从AB边的中点E出发沿着E﹣B﹣C匀速运动速度为每秒2个单位长度到达点C后停止运动点Q是AD上的点AQ＝10设△APQ的面积为y点P运动的时间为t秒y与t的函数关系如图②所示． 1图①中AB＝BC＝图②中m＝ 2当t＝1秒时试判断以PQ为直径的圆是否与BC边相切请说明理由 3点P在运动过程中将矩形沿PQ所在直线折叠则t为何值时折叠后顶点A的对应点A′落在矩形的一边上．
1分旅游业对这两个城市都很重要. Tourismbothofthecities.
8分Theworld'searliestknownfishhooks钩showthathumansfishedintheopenseaformuchlongerthanpreviouslythought.Paststudieshaveshownthatearlyhumanswereabletocrosstheopenoceanasfarbackas50000yearsagobutevidencethattheycouldfishwhileintheopenseadatedbackonlyto12000yearsago. Inmostareasoftheworldevidenceforourearlyancestors'coastalexploitation开发wasdrownedbyrisingsealevelssaidresearcherSueO'Connor. NowO'Connorandhercolleagueshavefoundevidenceofprehistoricfishingtoolsandtheremainsoflargefishsuchastuna金枪鱼atacaveshelterknownasJerimalailocatedintheSoutheastAsianislandnationofEastTimor.Theirdiscoveryuncoveredfishinghooksmadefrombonethatdatebacktoabout42000yearsago. MIfspossiblethatpeoplecaughtthetunainthedeepchannelthatliesoffthecoastoftheJerimalaishelterO'Connorsaid. Thesitefirstuncoveredin2005alsoincludedbonepointsshellbeadstheremainsoffishturtlesbatsandbirdsandnearly10000stonetools.TheislandofTimorhasveryfewlandanimalsoverallandonlysmallbirdscalltheislandhomeperhapsexplainingwhytheancientpeopleherewentfishing.Abouthalfthefishremainsatthesitecamefromfishsuchastuna.Catchingsuchfast﹣movingfishrequiresmuchplanningandcomplextechnologysuggestingthatearlyhumansdevelopedtheseskillsearlierthanpreviouslythought. Someotherscientistsmightsaythatmostofthefishbonesseenarefromyoungfishandthusmighthavebeencaughtmoreeasilyoffthecoastasopposedtoinopenwaters.Whilethismaybethecaseit'sstillnoteasytocatchtuna一itrequiresnetssetindeepwater. 1AccordingtoSueO'Connorevidenceforourearlyancestors'coastalexploitation. A.indicatedtunawasacommondishforourearlyancestors B.showedthetrendofseamovement C.wasburiedincaveshelters D.wasdifficulttofind 2SueO'Connor'sstudyadvancedthedateofhumans'fishingintheopenseaby. A.50000years B.42000years C.30000years D.12000years 3WhydidtheancientpeopleontheislandofTimorgofishingaccordingto. A.Theislandwastoosmallforthelargepopulation. B.Therewerefewanimalsonlandforfood. C.Itwasveryeasytocatchfisharoundtheisland. D.Peopletherelovedeatingfish. 4Whatcanwelearnfromthelastparagraph? A.SomescientistshavestudiedthesamecasemuchearlierthanSueO'Connor. B.SomescientistsdoubtedSueO'Connor'sstudy. C.ItwasnoteasyforSueO'Connortocarryoutthestudy. D.TheresultofSueO'Connor^studyneededtobetestedindeepwater.
解不等式组
6分Doyouwanttotravelabroad?Ifyoudoherearesomecitiesaroundtheworldyoucanconsidertravelingto. AthensGreece ItisthebirthplaceofWesterncivilizationnowalmost4000yearsold.ExploretheAcropolisinAthensandthenvisitthenewAcropolisMuseumtotrulyappreciatetheancientsettlement.WalkinSocrates'footstepsaroundtheAgora﹣﹣﹣﹣thecenterofsocialactivitiesinancientGreece.BeyondtheAcropolisyoucanalsoexplorethefleamarkets跳蚤市场ofMonastirakiandPlaka. BudapestHungary Budapestisknownasthecityofnaturallywarmpoolsofwatercalledspas.TheHungariancapitalfeatures16th﹣﹣﹣centuryTurkishpoolsaswellasmedicinalspas.Budapestisalsoalong﹣﹣termfoodiecity.Trylocalspecialties招牌菜likeHungariangoulashrichwithbeefonionspotatoesandspices. QueenstownNewZealand OnNewZealand'sbeautifulSouthIslandQueenstownisoneofthetopplacesintheworldforhikingboatingandskiing.NearbyMilfordSoundoffersthepeacefulbeautyforwhichNewZealandisfamous.PerhapsthemostfamousNewZealandproductistheLordoftheRingsmovies.Takearoadtripandexploreplaceswherethemoviewasfilmed. DubaitheUnitedArabEmirates Dubaiisacityfamousforluxury奢侈的goods.Oneofitsshoppingcentersevenhasanindoorskislope.DubaiisalsohomeoftheBurjKhalifathetallestbuildingintheworld.AndtheBurjAl﹣﹣ArabhotelisonanartificialislandintheArabianSea. 1WherecanyoulearnaboutsocialactivitiesinancientGreece? A.AtPlaka B.AtMonastiraki. C.AttheAgora D.AttheAcropolis 2Toenjoythepeacefulbeautyofnatureoneshouldgoto. A.Greece B.Hungary C.NewZealand D.theUnitedArabEmirates 3Dubaiwouldmostlikelyattractthosewhoareinterestedin. A.deliciousfood B.outdoorsports C.theancientcivilization D.man﹣﹣madewonders
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