工地上有a吨水泥，每天用去3.5吨，用b天后，剩下的吨数用式子表示是　 　．

LastyearIwas14yearsold.Ihadanenemyagirlwholikedtopointoutmyshortcomings缺点.Daybydayherlistgrew:Iwasverythin;Iwas1;Isometimesdidn'trespecttheteachersItalkedtoomuch:Iwastooproudandsoon.AtlastIcouldn'tstandit.Icriedand2tomyfather.Helistenedtomequietly.ThenheaskedAlfredarethethingsshesaystrueornot?Didn'tyoueverwonderwhatyouarereally3?Wellyounowhavethatgirl'sopinion.Goandmakealistofeverythingshe4andfindoutthepointsthataretrue.Paynoattentiontotheotherthingsyouheard. Idid5myfathertold.TomysurpriseIdiscoveredthatabouthalfthethingsweretrue.SomeofthemIcouldn'tchangelikebeingverythinbutalargenumberIcouldandsuddenlyIwantedtochange.ForthefirsttimeIgotafairlyclearpictureof6. IbroughtthelistbacktoDaddy.Herefusedtotakeit.It'sjustthecaseforyou.hesaidyouknowbetterthananyonethe7.aboutyourselfButyouhavetolearntolistennotjustcloseyourearsinangerandfeelinghurt.Whensomethingsaidaboutyouistrueyou'llfinditwillbeofgreathelptoyou.Ourworldisfullofpeoplewhothinktheyknowyourduty.Don'tshutyourearslistentothemallbuthearthefactonlyanddowhatyouknowisrightthing8. Inmylife.I'venever9abetterpieceofadvice.Thanksfortheshortcomingsthatsomeonehaspointedoutforus.Theycanmakeusknowourselvesmoreandimproveus10aswegrowup.

某店原来将一批羽绒服按100%的利润定价出售淡季时商家按38%的利润重新定价这样售出了其中的40%．旺季价格有所回升售出了余下的全部羽绒服．结果实际获得的总利润是原定利润的45.2%那么旺季的价格是原定价格的%．[注按100%的利润定价指的是定价一成本×1+100%]

每个小方格为1平方厘米 1梯形的面积是平方厘米． 2画一个与梯形面积相等的平形四边形． 3画出把上题中画好的平行四边形按21的比放大后的图形． 4平行四边形放大后的面积与原来的面积的比是

一个圆锥形的稻谷堆底面半径是2米高是3米．如果把这些稻谷装入一个圆柱形的粮库里已知粮库的底面积是6.28平方米求粮库的高是多少米

学校买来380本图书按一定的比分配给三个班它们的比可能是

把一个圆柱削成一个最大的圆锥削去部分的体积是圆锥体积的2倍．．判断对错

把与平行四边形面积相等的三角形涂上颜色．

一项工程乙单独做20天完成．如果第一天甲做第二天乙做这样交替做也恰好用整数天完成如果第一天乙做第二天甲做这样交替做结果比上次交替做要多半天才能完成．这项工程由甲单独做需要几天可以完成

六年级一班共有学生40人其中男生占55%女生有人．

要使●是〇的2倍再画个●．

在算盘上每一个上珠表示每一个下珠表示以空档表示0以档表示数位．

阅读下面的文章从每题所给的ABCD四个选项中选出最佳选项 Atabout6p.m.onSaturdayaforestfirebrokeoutinavillageinMuLiLiangshan.Thelocalgovemmentactedquicklyand689peopleweresenttoputoutthefire.FiregroupswerefightingthefireonSundaywhenasuddenchangeofwinddirectioncausedahugefireball.27firefightersand3localslosttheirlives.Mostofthefirefighterswereintheirtwentiesandtwoofthemwerelessthantwentythoughseveralwereolder.TheirdeathtouchedourheartsalloverChina.Thereisreasonenoughtoregardthemasheroes.PresidentXiJinpingPremierLiKeqiangandmanyotherleaderscaredfortheheroesandexpressedcondolencetotheheroes'familiesandfriends. Weshouldrememberalltheheroesandtheirspiritbraveryshowedinfightingthefire.Astheoldsayinggoes:anationislostwithoutitsmemories.ForestfiresarecommoninspringrulestopreventfireshavecomeoutinLiangshan.Manyexpertsbelievetherearesomereasonsforforestfires.Thefirstreasonisweatherchange.Warmeranddrierweatherleadstodangerousfireconditions.Nextlighteningisanotherreason.Drygrassandtreeseasilycatchfire.Finallyhotwindsaddtothepossibilityofforestfires.Thewindspreadsafirequickly.However90%offorestfiresarecausedbyhumansaccordingtoareport.Forestfirescanburnatover900℃andreachheightsofmorethan50meters.Forestfirescanmoveatspeedsofupto23kilometersanhourburningeverything﹣treesbrushhomesevenpeopleExpertsremindpeopletobecarefulduringtheholidayofQingmingknownasTombSweepingDay.Millionsofpeopletraveltotheirhomesduringtheholidaysotherisksoffiresinmountainsarehigh. Inordertokeeptheheart﹣brokenlessoninmindweshouldstopfiresfromhappeningagain. 1AccordingtothepassagewhichofthefollowingisNOTtrue? A.Allthefirefighterswholosttheirliveswereintheirtwenties. B.About700peopleweresenttoputoutthefire. C.Asuddenchangeofwinddirectionledtoahugefireball. D.ThedeathoftheheroestouchedourheartsaroundChina. 2Allofthefollowingcancauseforestfiresexceptinthepassage. A.weatherchange B.lighteningandhotwinds C.humanbehavior D.tombSweepingDay 3Whatdoestheunderlinedsentencemeaninthispassage? A.Weshouldrememberthereasonsforforestfiresincludingtheconditionsfromnatureandhumans. B.Weshouldremembertheheroesandtheirspiritbraveryshowedinfightingthefire. C.Weshouldrememberthenumberoftheheroesthatlosttheirlivesinfightingthefire. D.WeshouldremembertobecarefulduringtheholidayofQingmingknownasTombSweepingDay. 4Whatisthecharacterofforestfiresfromthepassage? A.Forestfirescanburnatmorethan9000Candreachheightsofover50meters. B.Forestfirescanrunatspeedsofupto23kilometersanhour. C.Forestfirescanburneverything﹣treesbrushhomesevenpeople. D.BothABandC. 5Youcanprobablyfindthispassage. A.inanewsreport B.inafairybook C.inastory﹣book D.inanovel

找规律填空．14916256481．

按下面步骤计算再把最后得到的数与开头的数比较你能发现什么想想为什么

三角形的面积一定底和高成比例正方形的周长和边长成比例．

某校男女生比例如图中的扇形区男生占全校人数的百分数为

新建一座工厂计划投资200万元实际只投资175万元．实际投资是计划投资的百分之几

﹣﹣Lindacouldyouremember? ﹣﹣HaveyouforgottenweagreedtogotoHongkong? A.wherearewegoingafterexam  B.wherewearegoingaftertheexam  C.wherearewegoingtoaftertheexam  D.wherewearegoingtoaftertheexam

比70m少是m比kg多40%是112kg．

把一个圆形纸片对折若干次折痕的交点是这些折痕是．

2的分数单位是再加上个这样的单位就等于3．

Inyourlifetherewillbetimeswhenyouhavetodecidewhattodo.istheroadsignforthat.Rightorleft?Maybeit'sjustaquestionofhowtomanageyourtime﹣youshouldthinkhowyoucoulddivideyourtimebetweenstudyingandhobbies. A. B. C. D.

晒谷场上有9堆同样大小的圆锥形小麦每堆底面周长6.28米高0.6米把它运进仓库用一张长6.78米宽2米的长方形芦苇围成一个直圆柱粮囤接头处重叠0.5米这些小麦能否都可以装进这粮囤

正方体的棱长扩大到原来的3倍体积扩大到原来的

一个圆柱削去2.4立方米后正好削成一个与它等底等高的圆锥削成的这个圆锥的体积是立方米圆柱原来的体积是立方米．

﹣didtherainstormcome? ﹣Whileweaphysicslessonyesterday. A.When;havehad B.While;arehaving  C.When;werehaving D.While;have

给37的前项加上6要使比值不变后项应加上．

80的40%相当于40的

一件上衣300元上衣比裤子少一条裤子多少钱

Manyenvironmentalgroupsarewarningthatoceansoftheworldareingreatdanger.Inthepast50yearsthenumberofwaterwithzerooxygen氧气intheopenoceanhasincreasedmorethanfourtimes.Inthenearcoastwaterbodiesincludingtherivermouthandseaslow﹣oxygenareashaveincreasedmorethan10timessince1950.ScientistsdiscoverthatoxygencontinuesdroppingeveroutsidethesezonesastheEarthwarms.Tostopthedroptheworldneedstocontrolinbothclimatechangeandnutrient养分pollution. Oxygenisamusttolifeintheoceans.ThedropinoceanoxygenisamongthemostseriouseffectsofhumanactivitiesontheEarth'senvironment. Thisisthefirsttimeforthescientiststotakesuchadeeplookatthecausesresultsandsolutionstolowoxygenworldwideinboththeopenoceanandthenearcoastwaters.AbouthalfoftheoxygenonEarthcomesfromtheocean.Howevermixedeffectsofnutrientloadingandclimatechangearegreatlyincreasingthenumberandsizeofdeadzonesintheopenoceanandthenearcoastwaterswhereoxygenistoolowtosupportmostsealife. Intheareastraditionallycalleddeadzones.likethoseinChesapeakeBayandtheGulfofMexicooxygendropstolevelssolowthatmanyanimalshavetroubleinbreathinganddie.Asfishesrunawayfromthesezonestheirlivingareasbecomesmallerandsmaller.Buttheproblemgoesfarbeyonddeadzones.Evensmalleroxygendropscanholdupthegrowthinanimalsandleadtodiseaseorevendeath.Lowoxygenalsocancausethereleaseofdangerouschemicals.Althoughafewanimalscangrowwellindeadzonesoverallbiodiversity多样性falls. 1Howtostopthedropofoceanoxygeninthearticle? A.Bycontrollinginbothclimatechangeandnutrientpollutionaroundtheworld. B.Bytakingadeeplookatthecausesresultsandsolutionstolowoxygenworldwide. C.Byrunningawayfromthesezonesforthelivingareasbecomesmallerandsmaller. D.Bycuttingdownthenumberofanimalsintheoceans. 2Whyarethesewaterscalleddeadzonesfromthearticle? A.Becausetheoxygenintheseareasistoolowformostsealifetolive. B.Becausenutrientloadingandclimatechangearegreatlyincreasing. C.Becausetherearenoanimalslivingintheseareas. D.Becauselowoxygenalsocancausethereleaseofdangerouschemicals. 3WhichofthefollowingstatementsisTRUEaccordingtothearticle? A.Onlyafewanimalslivingintheseaneedoxygen. B.Climatechangecanhelpcutdownthedeadzones. C.Fishesgrowfasterandbetterinlowoxygenareas. D.Humanactivitieshavemanyseriouseffectsonoceanenvironment.

﹣﹣Wherewillthe2022WinterOlympicsCindy? ﹣﹣InBeijingthecapitalofChinathefirstcitytohostbothSummerandWinterOlympics. A.betakenplace B.takeplace  C.takepart D.betakenpart

1把三角形先向右平移10格再向上平移4格． 2把最右边的图形补全使它成为轴对称图形．

直接写出得数．

一个直角三角形的三条边分别是3厘米4厘米5厘米这个直角三角形面积是

为庆祝校庆同学们要做360面小旗已经做了一部分还剩下没做．已经做了面小旗．

有一个木制圆锥模型底面直径是4dm高是9dm． ①这个圆锥模型的体积是dm3． ②如果从圆锥的顶点到底面圆心把这个模型切成完全一样的两部分那么表面积增加了dm2．

求如图中阴影部分的面积．单位厘米

工地上运来的沙堆成一个圆锥形底面积是12.56平方米高是1.2米每立方米沙约重1.7吨这堆沙一共有多少吨得数保留整数

16和24的最大公因数是最小公倍数是．

小明按照如图的方法用灰色和白色正方形摆图形． 当中间摆n个灰色的正方形时四周共需要摆个白色正方形．

把一张长方形纸的纸片对折4次每份是这张纸的

计算下面各题．能简算的要简算 124.21+13.98﹣13.21 229.7﹣9.65﹣5.35 311.8×0.6﹣1.8×0.6 48.23×10.1

乐乐有4本科技书和3本故事书他准备捐出科技书和故事书各一本他有种不同的捐法．

已知正方形的边长是8cm计算图中阴影部分的面积．

把一块三角形的地画在比例尺是1500的图纸上量得图上三角形的底是12厘米高8厘米这块地实际面积是

JackcomesfromAmericabutheknowsmany传统folkstoriesaboutChinesefestivals.

圆柱体的底面半径和高都扩大2倍它的体积扩大倍．

图形的各边按相同的比放大后或缩小后所得的图形与原图形比较

圆柱体积是与它等底等高圆锥体积的倍．

一根钢管截去了还剩下米截去的和剩下的相比

把米的铁丝平均分成3份每份长米第二份占全长的．

把5克盐溶解到20克水中盐占盐水的20%．．判断对错

直接写出得数． 8﹣0.55＝ 4.8×0.5＝ 1.2÷0.6＝ 8.5+4.7＝ 10÷0.25＝ 0.5÷0.05＝ 0.24÷0.4＝ 4.5÷0.09＝

甲仓原来存粮是乙仓的后来甲仓增加存粮88吨这时乙仓与甲仓存粮吨数的比是67乙仓有存粮多少吨

把一根长6分米的长方体材料平均锯成3段表面积增加3.6平方分米这根木料的体积是立方分米．

一个比的比值是它的前项是12后项是．

等腰三角形中一个顶角是80°每个底角是°．

圆的对称轴有无数条．判断对错

运送29.5吨煤先用一辆载重4吨的汽车运3次剩下的用一辆载重为2.5吨的货车运．还要运几次才能完设次数为x列出方程．

下面是育英小学和西门小学四五六年级学生回收电池统计图．根据统计情况估计一下哪个学校的学生回收的电池更多

AmajorfiredestroyedNotre﹣Dame巴黎圣母院builtinthe12and13centuriesinPanisonApril52019.改为被动语态 Notre﹣Damebuiltinthe12and13centuriesinParisbyamajorfireonApri152019.

等底等高的两个图形形状一定相同．判断对错

x和y成反比例关系的式子是

计算阴影部分的面积．

把4m长的绳子平均分成7段每段是这根绳子的每段长m．

习__说:我们都在努力奔跑我们都是追梦人. Weareveryhardwearealldreamchasers.PresidentXiJinpingsaid.

简便运算 14.56﹣6.62+5.44﹣8.38 25×52﹣25×12 3.25×8.7+8.7×6.75

一个圆锥的底面积是18平方分米高是12分米它的体积是立方分米．

小军坐在教室的第4列第3行用43表示．．判断对错

﹣SimonyoulooksmartintheT﹣shirt.Couldyoutellmeit? ﹣OK.Iboughtitinastoreonline. A.whereyoubought B.wheredoyoubuy  C.whenyoubuy D.whendidyoubuy

气象小组要统计今年每月平均气温情况应选用最合适．

学校食堂运进一堆煤堆放成一个近似的圆锥．它的底面直径是6米高是1.3米．如果每立方米煤重1.8吨这堆煤重．

拧开矿泉水瓶盖是做运动．

某工程计划造价80万元实际造价节省了2.4万元．实际造价节省了百分之几正确的解答是

▲▲●●●▲▲●●●▲▲●●● 照这样摆下去第36个是第48个是．

两个圆的周长相等那么它们的面积

一个圆锥形沙堆高1.5米底面周长是18.84米如果每立方米沙子重500千克那么这堆沙子共重多少千克

日本全国因海啸住进避难所的人数达256871人8在位上将避难所的人数四舍五入到万位约是人．

一个圆的半径1分米它的半圆周长是分米．

Canyouimaginethatwecouldbuildabeautifulcitywithrubbish?Maybeyouwillthinkitis1.Howeveritcanbetrue!Nothingisawasteifwehaveacreativemind.Letmeshowyousomethingabout2rubbish. Sometimeswecanseetonsofrubbishinthestreetsontheroadsnearthebuildingshereandthere.Manylargecitiesbecamesougly3it.Nobodylikesrubbishbutinfactsomerubbishcanbeusedagain.Allofuswanttosolvetheproblemwemustdosomethingto4rubbish.Weshouldtakeactionfromnowon.5somegoodthingswillnotbewasted. Doyouoftenthrowawaythingsyoudon'tneedanymore?Haveyoueverthoughtabouthowthesethingscanactuallybeputtogooduse?Forexamplewhenacargetstooolditmaynotrunanymore.Butwecanusethemetalofthecartomakesomethingelse.Whenabottleisemptyit6aswaste.Youdon'tknowbottleglasscanbemadeintosandandusedtobuildstreets.Rubbish7foodcanbechangedintofertilizertomakeplantsgrowbetter.Itischeapandsafe.Andotherrubbishcanalsobeusedtomakebuildingblocks.Now8machinesaredesignedforthat.9peoplewillwatchfilmsinabeautifulcinemawhichisbuiltoutofrubbish.Besidesbuildingsandroadscitiesmaybemadefromrubbish.Butsofarbuildingbeautifulcitiesmadefromrubbishisonly10. 1A.important B.understanding C.unbelievable D.possible 2A.returning B.reusing C.reflecting D.repeating 3A.because B.becauseof C.insteadof D.asfor 4A.makealivingas B.makepromisesto C.makeupourmindto D.makeuseof 5A.Ontheway B.Bytheway C.Inthisway D.Outoftheway 6A.willbethrownaway B.willthrowaway C.threwaway D.wasthrownaway 7A.from B.in C.on D.to 8A.fewerandfewer B.lessandless C.moreandmore D.moreandless 9A.Someday B.Theotherday C.Nowadays D.Intheday 10A.asymbol B.aletter C.alesson D.adream

﹣﹣MaLing'sChineseisn'tsoasWangMing's. ﹣﹣IknowthemverymuchButnowMaLingstudiesthanWangMingdoes. A.good;harder B.good;hard  C.better;harder D.better;better

在一个边长是5cm的正方形内画一个最大的圆．它的半径是

加工一批零件甲单独做需要10天完成乙单独做5天只完成这批零件的．如果让甲乙两人合作几天能完成这批零件的50%

一个直角三角形其中一个锐角是49°另一个锐角是度．

某公司一季度的销售额是1200万元如果按销售额的6%缴纳税金该公司一季度应缴纳税金万元．

﹣﹣HelloLucypleasegivemesomeonhowtoimprovemyEnglish! ﹣﹣You'dbetterkeep___moreEnglishbooks. A.advices;read B.advice;read  C.advice;reading D.advices;reading

六年级1班有50人昨天有4人缺席昨天出席率是

用简便方法计算． 900﹣157﹣343＝

小冬爸爸5月份的工资总收入约是8000元按照如图进行支配那么用于教育费用约是

一个圆环形内圆的半径是4厘米外圆的半径是6厘米那么这个圆环的面积是．

下面是二1班同学最喜欢哪个季节的调查情况． 春季正正正正正夏季〇〇〇〇〇〇〇〇〇〇〇 秋季√√√√√√√√冬季 1请你根据上面记录的结果完成下表． 2二1班喜欢季的人数最多． 3喜欢季的人数比喜欢季的人数多人． 4如果组织二1班同学去游玩最好应安排在季因为．

只列式不计算 ① ②商店有一种衣服售价34元比原来定价便宜15%原来定价多少元

把1g盐放入99g水中盐与盐水的质量比是

Idon'twanttobeelse.Ijustwanttobe. A.anybody;myself B.somebody;myself  C.everybody;me D.anybody;me

OnApril23.2019aseriesofeventstocelebrate the1anniversaryoftheChinesePeople'sLiberationArmyPLANay中国人民海军washeldinQingdao. Destroyers驱逐舰sailedintheseasubmarines潜艇slidunderthesurfaceandfighterjetsflewacrossthesky.Itwasn'tascenefromawarmovieindeeditwasarealgrandnavalparade. Asalargecountry2morethan18000kilometersofcoastlineChinaneedsastrongnavy.Thiswasahardlesson3byhistory.AccordingtoXinhuafromthe1850suntil1949.foreignforcesusedtheseatomakeabout470invasionsofChina.ThereforethePLANavyhasbecomeakeylineofthenation'sdefense. AsPresidentXiJinpingsaidtheoceansareofgreatsignificanceastheysustainlifeandconnecttheworld.Theblueplanetthathumansinhabitisnotdividedintoislandsbytheoceans.4isconnectedbytheoceanstoformacommunitywithasharedfuturewherepeopleofallcountriessharewealandwoesaidXiduringhis5attheevent. 1A.seventy B.seventieth C.seventith D.seventeen 2A.has B.have C.with D.of 3A.teach B.taught C.learn D.learned 4A.But B.and C.or D.with 5A.speak B.talk C.chat D.speech

在数轴上从表示1的点出发向左移动3个单位长度的数是．

912和16118可以组成比例．判断对错

果园里有苹果树15行每行40棵还有桃树285棵桃树比苹果树少多少棵

一个圆环形内圆的半径是4厘米外圆的半径是6厘米那么这个圆环的面积是．

箱子里有一些白球和黑球随意摸出一个球再放回去摇匀重复20次．依依和龙一鸣摸出的结果是 依依白球18次黑球2次 龙一鸣白球15次黑球5次． 箱子里可能球多球少．