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为了测量一棵大树的高度，准备了如下测量工具：①镜子；②皮尺；③长为2m的标杆；④高为1.5m的测角仪（能测量仰角和俯角的仪器），请根据你所设计的测量方案，回答下列问题：（1）在你设计的方案上，选用的...
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为了测量一棵大树的高度准备了如下测量工具①镜子②皮尺③长为2米的标杆④高为1.5米的测量仪能测量仰
吕晓同学想利用树影的长测量校园内一棵大树的高度他在某一时刻测得一棵小树的高为1.5米其影长为1.2米
为了测量校园内一棵不可攀的树的高度学校数学应用实践小组做了如下的探索实践根据自然科学中的反射定律利用
为了测量校园水平地面上一棵不可攀的树的高度学校数学兴趣小组做了如下的探索根据科学中光的反射定律利用一
为了测量校园水平地面上一棵不可攀的树的高度学校数学兴趣小组做了如下的探索根据光的反射定律利用一面镜子
活动与探究[问题]为了测量一棵大树的高度准备了如下测量工具①含30°和60°两个锐角的三角尺②皮尺．
为了测量校园水平地面上一棵不可攀的树的高度学校数学兴趣小组做了如下的探索根据光的反射定律利用一面镜
为了测量一棵大树的高度准备了如下测量工具①镜子②皮尺③长为2m的标杆④高为1.5m的测角仪能测量仰角
为了测量校园水平地面上一棵不可攀的树的高度学校数学兴趣小组做了如下的探索根据光的反射定律利用一面镜子
4.2米
4.8米
6.4米
16.8米
为了测量校园内一棵不可攀的树的高度学校数学应用实践小组做了如下的探索根据光的反射定律利用一面镜子和
为了测量校园内一棵不可攀的树的高度学校数学应用实践小组做了如下的探索根据自然科学中的反射定律利用一面
为了测量校园内一棵不可攀的树的高度学校数学应用实践小组做了如下的探索实践根据自然科学中的反射定律利用
为了培养同学们的综合实践能力某数学老师让大家测量校园内的一棵高大松柏树要测出它的高度不能爬到树尖上去
为了测量校园水平地面上一棵不可攀的树的高度学校数学兴趣小组做了如下的探索根据光的反射定律利用一面镜子
为了测量校园内一棵不可攀的树的高度学校数学应用实践小组做了如下的探索实践一根据自然科学中的反射定律利
为了测量校园水平地面上一棵不可攀的树的高度学校数学兴趣小组做了如下的探索根据光的反射定律利用一面镜子
为了测量一棵大树的高度准备了如下测量工具①镜子②皮尺③长为2cm的标杆④高为1.5m的测角仪能测量
为了测量校园水平地面上一棵不可攀的树的高度学校数学兴趣小组做了如下的探索根据光的反射定律利用一面镜
4.2米
4.8米
6.4米
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活动与探究[问题]为了测量一棵大树的高度准备了如下测量工具①含30°和60°两个锐角的三角尺②皮尺．
为了测量校园水平地面上一棵不可攀的树的高度学校数学兴趣小组做了如下的探索根据光的反射定律利用一面镜
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雾霆是一种灾害性天气现象由于人类生产生活向大气中排放大量细颗粒物如果超过大气的自净能力就会出现雾霾现象．请分析下列污染物中．会导致雾霾的是
化学与生活生产科技密不可分．下列叙述中正确的是
MysistercalledtheotherdayandtoldmehowsadshewasfeelingaboutMother'sDaythisyear.1IwastakenbysurprisebecauseMayfeelssofaraway.Ifeltinstantly2becauseIhadn'tthoughtaboutmymotherinawhileAndthat's3whenitoccurredtomethatour4doesn'talwaysfollowacalendar. AfterourmotherdiedIspentagooddealoftime5herinfrontofherphoto.Itenabledmeto6conversationswithherthatwere7tome.Irememberdesiringtobepickupthephoneonmanyoccasionsto8somegoodnewsorgetheradviceonlytobe9.NowIsimplytalktoherinmyhead.Herphotohasbecomea10ofherspiritandI'mgladshe'sthere. MysisterEllensaidthatthisisa11difficultyearforherandsheistryingto12whyShesoundedimpatientwithherself1313yearsshouldbeenoughtimetogetpastbeingsadonMothersDay. Thetruthisthatformeeveryyearis14.AttimeswhentheTVcommercials.advertisementsandlocalstoresabsolutelybombuswithfairytalesofflowersandchocolateandjewelryIgetangry:15thesesameremindersleavemefeeling16formywonderfulmomrecalling回忆hergenerosityandseriousstyle.Shewasalwaysatrooper.AndsometimesIdon't17anyofitatall. AsEllenandItalkedsheseemedtocometoacertain18.ShewasgoingtobeoutofthecountryonbusinessonMothersDaywithoutherhusbandoranyfamilyaroundWithoutthepresenceofthis19sheworriedaboutbeing20.ButshedecidedthatitwouldbeOK.DeepinourheartMumhasalwaysbeenwithus. 1A.Atlength B.Atintervals C.Atrandom D.Atfirst 2A.disturbed B.depressed C.guilty D.annoyed 3A.exactly B.merely C.eventually D.initially 4A.sorrow B.hesitation C.curiosity D.enthusiasm 5A.staringat B.debatingwith C.talkingto D.relyingon 6A.switchon B.carryon C.spyon D.decideon 7A.secure B.ordinary C.meaningful D.skillful 8A.request B.admit C.obtain D.share 9A.astonished B.disappointed C.embarrassed D.motivated 10A.symbol B.signal C.sign D.mark 11A.normally B.basically Cparticularly D.generally 12Asqueezeout B.sortout C.ruleout D.figureout 13A.evenif B.asif C.incase D.nowthat 14A.brilliant B.fortunate C.apparent D.different 15A.Occasionally B.Frequently C.Naturally D.Actually 16Aconcerned B.grateful C.eager D.anxious 17Aputupwith B.tryoutfor C.takechargeof D.payattentionto 18A.selection B.decision C.compromise D.conclusion 19A.support B.sympathy C.appreciation D.Courage 20Ashocked B.scared C.lonely D.nervous
下列说法中正确的是
WhydoestimeseemtoflybyfasteraswegetoldYou'vegotyouragingbraintoblame. Thisislikelyduelargelytothephysicalchangesofournervesandneurons神经元.Newresearchsuggests‘rapidfire'abilitiesoftheyoungbrainallowustoprocessmoreinformationduringyouthcausingthedaystoseemlongerearlierinlife.Howeveraswegetoldresearcherssaytheolderbraintakesmoretimetoprocessinformation ThenewfindingputforwardbyaDukeUniversityresearcherwaspublishedinapaperinthejournalEuropeanReviewthisweekAccordingtoAdrianBejantheJ.AJonesProfessorofMechanicalEngineeringatDukethephysicalchangesofournervesandneuronsplayamajorroleinourperception知觉oftimeaswegetold.Overtheyearsthesestructuresbecomemorecomplexandeventuallybegintodegrade. Littlebabiesforexamplemovetheireyesmuchmoreoftenthanadultsbecausethey'reprocessingimagesatafasterrateBeiansaysForolderpeoplethismeansfewerimagesarebeingprocessedinthesameamountoftimecausingexperiencestoseemasthoughthey'rehappeningmorequickly. 1Whatcausestimetoflyfasteraswegetold A.Changesofournervesandneurons. B.Informationinourbrain. C.Theelectricalsignals. D.Rapidfire'abilities. 2Whatisunavoidableintheprocessofgettingold A.Longerdays. B.Agingbrains. C.Moreimages. D.Lessexperience. 3Whydothedaysseemlongerearlierinlife A.Youngpeoplearemoreenergeticintheirlife. B.Theyoungerbraintakeslesstimetoprocessinformation C.Oldpeoplehavefewerthingstodothanyoungpeople. D.Littlebabiesmovetheireyesmuchmoreoften. 4Whatisthebesttitleofthetext A.NervesandNeurons B.TimeFliesFast C.TheOldertheFaster D.TheFunctionoftheBrain
同学们用如图所示装置进行实验验证CO2与NaOHCaOH2都能发生反应．分别向甲乙两个瓶中注入少量等体积的两种溶液观察实验现象． 1甲中反应的化学方程式是．说明CO2能与CaOH2反应的实验现象是． 2下列实验现象中一定能说明CO2与NaOH发生了化学反应的是填序号． a．U型管中红墨水左低右高 b．U型管中红墨水左高右低
Althoughproblemsareapartofourlivesitcertainlydoesn'tmeanthatweletthemruleourlivesforever.Onedayortheotheryou'llhavetostandupandsay﹣﹣problem.Idon'twantyouinmylife. 1Problemswithfriendsparents.girlfriendshusbandsandchildren﹣thelistgoeson.Apartfromthesetheinnerconflictswithinourselvesworktoo.Thesekeepaddingtoourproblems.Problemscomeindifferentshapescolorsandfeelings. Butgoodnewsisthatallproblemscanbedealtwith.Nowreadontoknowhowtosolveyourproblems. Talkaboutyourproblems.Whatmostofusthinkisthatourproblemcanbeunderstoodonlybyusandthatnotalkingisgoingtohelp.2Talkinghelpsyoumoveonandletgo. Writeyourproblems3Whenyouwritedownyourproblemsyouaresettingfreeallthetensionfromyoursystem.Youcantrythrowingawaythepaperonwhichyouwroteyourproblems.Bydoingthisimagineyourselfthrowingawaytheproblemsfromyourlife. Don'tlosefaithandhope.Nomatterwhatyouloseinlifedon'tlosefaithandhopeEvenifyouloseallyourmoneyfamily.youshouldstillhavefaith.4 Yourproblemsaren'ttheworst.Nomatterwhatproblemyougetinlifethere'reanotheronemillionpeoplewhoseproblemsarehugerthanyours.5Yourproblemsmightjustseembigandworsebutinrealitytheycanberemoved. Goaboutandsolveyourproblemsbecauseeveryproblemhoweverbigorsmallalwayshasawayout. A.Tellyourself:whentheycandealwiththemwhycan'tI B.Withfaithandhopeyoucanrebuildeverythingthatyoulose C.Ofcoursewe'vebeenfightingtroubleseversincewewerebor. D.Wecanoftenovercometheproblemandachievethegoalbymakingadirectattack. E.Havingapersonaldiarycanalsobeofhugehelpifyoudontwantarealpersontotalkwith. F.Whenwehaveapressingcriticalurgentandlife﹣threateningproblemhowdowetrytosolveit G.Butthetruthisthatwhenyoutalkaboutityou'resettingfreethenegativeenergiesthathavebeengatheringwithinyou.
下列选项正确的是
如图四圆中甲乙丙丁分别表示一种溶液两圆的相交部分为两溶液混合后出现的主要实验现象下表中符合图示关系的是
如图为AB两种固体物质的溶解度曲线．下列有关说法正确的是
Thedaysofglancingatamaporthescreenofyoursmartphonewhenyou'relostwillsoonbeover﹣﹣thankstonewshoesthattellyouwhichwaytotumtoTheshoesuseaBluetoothlinktocommunicatewithyourmobile'smappingsystemThemobileworksoutwhichrouteyoushouldbefollowingandtheshoesthensendoutasmallvibration震动ineitherfoottellingyouwhenandwheretochangedirection. Theshoeswillalsocountthenumberofstepsyou'vetakenandthecaloriesyou'veburned﹣andthey'llevenbuzztowarnyouyou'veleftyourphonebehindortoalertyouwhenyou'retravellingpastaninterestinglandmark. TheyareaseasytouseasatapontheshouldersaidKrispianLawrence30whodevelopedtheshoeswithpartnerAnirudhSharma28inHyderabadIndia.Youcanevencommunicatewiththemusinghandgesturesandfingersnapsbecausetheshoeshavesensorsthateanpickupmovementandsound. TheLechalshoesgoonsaleworldwideinJunebutLawrenceandSharma'scompanyDucereTechnologies.hasalreadytakenmorethan3000pre﹣ordersLawrencebelievestheshoeswillalsoimproveroadsafety.IfI'monmybikeormotorbikeIdon'twanttostareatmyphone﹣it'sdangerous.hesaysI'dratherbeguidedbymyshoes.HebelieveshisinnovationwillproveinvaluableforthevisuallyimpairedandhaspromisedthateverymainstreampairsoldbyDucerewillsubsidize资助acheaperpairforavisuallyimpairedperson EootnavtechnologydoesnotimpressexplorerSirRanulphFienneshoweverwhat'swrongwithagoodold﹣fashionedmapsaidthe70﹣year﹣oldwhentoldoftheshoes.Ifyourelytooheavilyontechnologyyou'reheadingfortrouble.Toomanypeoplehaveforgottenthebasics:howtoreadamapandacompass. 1WhichofthefollowingisNOTthefunctionofsmartshoesaccordingtothepassage A.Warnthelossofpricelessthings B.Countstepsandcalories. C.Improveroadsafety. D.Guidetheroad. 2Smartshoescanbeusedasamapbecause. A.specialmapsinthemarelinkedtosmartphones B.thevibrationofourfeetcanbefeltbyus C.aremotecontrolisguidingthem D.peoplecantalktothem 3WhichofthefollowingbestexplainsbuzzunderlinedinParagraph2 A.Appear B.Ring C.Begin D.Sound 4WhydoesexplorerSirRanulphholdanegativeattitudetowardsthisinvention A.Hedoesn'tneeditatall. B.Hedoesn'tbelievethefunctionsoftheinventions. C.Hehopespeoplecanstillrelyontraditionalways. D.Hethinkssmartphoneswilldoharmtous.
关于“舌尖上的化学“下列说法不科学的是
假如你是李华上周日你们学校在操场举办了第四届成人礼coming﹣of﹣ageceremony请你写一封信告诉你英国的笔友David你们学校的成人礼活动.写作内容包括以下几点: 1.活动举办的时间地点 2.活动的内容及感想. 要求:可适当增加细节字数100字左右.
下列各组离子在溶液中能大量共存的是
下列鉴别物质的方法不正确的是
请从HKNOClCa元素中选择写出符合下列要求的化学式． 存在人体胃液中可帮助消化的酸是用于改良酸性土壤的碱是可作复合肥料的盐是．
如图为钠原子的原子结构示意图及钠原子在元素周期表中的相关信息下列有关钠元素的说法错误的是
GardenerssuchasPrinceCharleswhoclaimthattalkingtoplantsencouragesthemtogrowhavelongbeenseenasalittlesilly.ButscientistshavediscoveredevidencewhichsuggeststheRoyalmayactuallyberightandtheycouldbelisteningtohim.BiologistsatTelAvivUniversityinIsraelhavefoundthatflowerscanactasaplant'searstohelpthemdetectthesoundofapproachinginsects. Whentheresearchersplayedrecordingsofflyingbeestoeveningprimroseflowerswithinthreeminutesthesugarconcentrationsinthenectar花蜜ofitsflowersincreased.Thefluidproducedtoattractpollinating授粉insectswasonaverage20percenthigherinflowersexposedtothebuzzcomparedtothoseleftinsilenceorexposedtohigherpitchedsounds.ProfessorLilachHadanywholedthestudysaid:Ourresultsdocumentforthefirsttimethatplantscanrapidlyrespondtopollinatorsoundsinanecologicallyrelevantway. HoweverProfHadanysaidaplant'sabilitytorespondtopollinatorsmaybeweakenedincityenvironmentsorbesideabusyroad.Whileplantsrequirewatersunlightandtherighttemperaturetogrowitiswidelybelievedtheydonothavesensesinthewayanimalsdo. Butthestudypublishedontheopen﹣sciencewebsiteBioRxivsuggeststheeffortsofgardenerswhotalktotheirplantsmaynotbeinvain.Plants'abilitytohearhasimplicationswellbeyondpollination﹣plantscouldpotentiallyhearandrespondtoherbivoresotheranimalstheelementsandpossiblyotherplantsProfHadanyadded. Amonth﹣longexperimentconductedbytheRoyalHorticulturalSocietyin2009foundfemalevoicesappeartospeedupthegrowthoftomatoes.Theresearchoffersapossibleexplanation﹣women'svoiceswereattherightfrequencyfortheplantstohear. 1What'seveningprimroseflowers'responsetobees'buzz A.Longerbloom. B.Sweeternectar. C.Brightercolor. D.Lessfluid. 2WherecanplantsgrowbetteraccordingtoHadany A.Onasquare. B.Besideahighway. C.Inthewoods. D.Alongthestreet. 3Whatcanweinferfromtheresearch A.PrinceCharlesproveskindofstupid. B.Plantscanonlypotentiallyhearanimals. C.Plantsrespondtosoundsslowlyandecologically. D.Plantsgardenerstalktofrequentlydevelopwell. 4Whatdoesthetextmainlytalkabout A.Flowerscanhear. B.Beesarebestpollinators. C.Plantscan'tgrowwithoutsound. D.Women'svoicesimproveplants'growth.
甲乙丙是教案备课库常见的物质三者之间反应或转化的关系如图所示．且甲和丙属于相同种类的化合物乙为非金属氧化物通常为无色无味气体．“→”表示由一种物质可以转化为另一种物质“﹣”表示相邻两种物质间可以相互反应 1甲转化为丙的化学方程式为． 2乙的化学式为．
实验室有三瓶试剂分别是稀盐酸饱和石灰水和饱和纯碱溶液．康康用上述试剂做了三个实验指示剂自选①证明其中的酸和碱之间确实发生了化学反应②二者混合会有气体产生③二者混合会有沉淀产生．请写出 1实验①中的操作过程． 2实验②中的化学方程式． 3实验③中的化学方程式．
It'softensaidthatyourparents'jobistomakesurethatonedayyounolongerneedthem.Andthat'scertainlythecasebythetimeyouhavekidsofyourown.Howeverthisispreciselythetimewhenyourparentsstarttoneedyou.Howdoyoutalktoyouragingparentsabouttheirhealth1butthesetipsmakeiteasier. Beforeaconversationyouhadbetterestablishyourselfasafriendnotanenemy.AlwaysstartwithanIstatementnotayoushouldstatement.2. Scientistsrecommendbeginningaconversationaboutsomethingyou'redoing﹣takingupyogatostayslimforinstance.3.Andyoucanevenhavehercommittodoingitwithyou.Whenyou'reafriendday﹣to﹣dayyourparentswilltrustyouandbeabletodependonyouduringahealthcrisis. 4.Startbyequippingthemwithasmartphonethat'sdesignedforseniors.Stayinginclosephonecontactwillkeepyouinformedofanyarisinghealthissues.Itwillhelpyoupickuponfaultsintheirmemorytoo. Yourparentsareyourparentsuntilthey'regone.Donottreatthemlikechildren.Evenifyoufindthatthere'sanemergencygoingonyoucanmakesuggestionsbuttheyhavetherighttomakedecisionsespeciallyifthere'snocognitive认知的disorder.5helpingyourparentsintheirlateryearsistheleastyoucando.Withthepropermeasuresandtechnologyitcangeteasierandfeelevenmorerewarding. A.Justastheyhavebeenthereforyou B.Itmaynotbeasimpleconversationtohave C.Itcanmeanchangesinyourparents'schedule D.Scientistsalsosuggestsphoningyourparentsregularly E.Thatcanleadtoaskingyourmomwhatshe'sdoingtokeepfit F.Talkaboutaffairsaboutyourselffirstthenextendthemtoyourparents G.Scientistsrecommendopeningthedoortodialogueinsteadofcallingthem
WhenyouthinkbacktotheblackboardfromyourschooldayswhatcolorisitChancesarethatit'sgreen.Sowhat'supwiththenameOriginallyblackboardswerereallyblack.Beforewall﹣sizedblackboardsexistedlate18th﹣centurystudentsusedtheirownminiboardsmadeofslate石板orpaintedwoodaccordingtoConcordiaUniversityThosefirstboardswereinfact.blackandtheypavedthewayforthelargerones. In1800whenaScottishheadmasternamedJamesPillanswantedhisstudentstodrawmapsthestudentscouldn'tdrawthemapstheirteacherwantedontheirtinyboardssoPillansputseveralslatestogethertocreatealargeboard.Problemsolved!Fromtheretheideaspreadquicklyasteacherscouldfinallyshowaconcepttothewholeclassatonetime.By1815themassivewritingspaceswerecommonenoughtoearntheirownname:blackboard. Thecolorchangecameinthe1960swhencompaniessoldsteelplatescoatedwithgreenenamel漆insteadofthetraditionaldarkslate.Thenewmaterialwaslighterandlessfragilethanthefirstblackboardssotheywerecheapertoshipandmorelikelytosurvivethejourney.Teachersweren'tcomplainingeither.Afterallthenewgreenboardsmadethechalkpowdereasiertoerase.Plustheenamelleftlessofaglareandthecolorwasnicertolookat.Atthatpointpeoplestartedusingthewordchalkboardasamoreaccuratedescriptorbutblackboardstillstuckaround. 1Whatdidthelate18th﹣centurystudentsuseinclass A.Blackboard. B.Chalkboard. C.Greenboard. D.Miniboard. 2Whydidtheheadmasteraskthestudentstoputtheirminiboardstogether A.Tomakeacomparison. B.Tomakeenoughspace. C.Todrawstudents'attention. D.Toarousestudents'interest. 3WhichofthefollowingisNOTtheadvantageofthegreenboard A.They'relighterinweight. B.They'remoreconvenienttotransport. C.Theyreeasiertoerasethepowder. D.They'remoreusefulthanthetraditionalones. 4What'sthemainideaofthetext A.Introductionoftheblackboard. B.Originoftheblackboard. C.Coloroftheblackboard. D.Functionoftheblackboard.
“联合制碱法”生产过程涉及的主要化学反应如下 Ⅰ．NH3+CO2+H2O═NH4HCO3 Ⅱ．NH4HCO3+NaCl═NH4Cl+NaHCO3↓ Ⅲ.2NaHCO3Na2CO3+H2O+CO2↑ 1上述过程没有涉及的基本反应类型是． 2上述反应中所涉及物质可以作氮肥的有哪些要求写出两种物质的名称． 3简述除去Na2CO3粉末中少量的NaHCO3的方法．
下列客观事实解释正确的是
ThereisanoldsayinginChinathatgoesThedaysoftheSanjuperiodarethecoldestdays.SanjiuperiodwhichisinMinorColdreferstothethirdnine﹣dayperiodthe19thtothe27thdayafterthedayoftheWinterSolstice.TherearemanydifferentcustomsrelatedtoMinorColdinChina. Eatinghotpot DuringMinorColdpeopleshouldeatsomehotfoodtobenefitthebodyanddefendagainstthecoldweather.Winteristhebesttimetohavehotpotandbraisedmutton炖肉withsaysauce.Butitisimportanttonoticethattoomuchspicyfoodmaycausehealthproblems. Eatinghuangyacai InTianjinthereisacustomtohavehuangyacaiakindofChinesecabbageduringMinorCold.TherearehargeamountsofvitaminsAandBinhuangyacai.Ashuangyacaiisfreshandtenderitisfitforfryingroastingandbraising. Eatingglutinousrice AccordingtotraditiontheCantoneseeatglutinousriceinthemorningduringMinorColdpeopleaddsomefriedpreservedporksausageandpeanutsandmixthemintotherice. Eatingvegetablerice InancienttimespeopleinNanjingtookMinorColdquiteseriouslybutastimewentbythecelebrationofMinoroldgraduallydisappeared.Howeverthecustomofeatingvegetablericeisstillfollowedtoday.Thericeissteamedandisunspeakablydelicious.AmongtheingredientsaijiaohuangakindofgreenvegetablesausageandsaltedduckarethespecialtiesinNanjing. 1WhatdoweknowaboutMinorCold A.Itlaststwenty﹣sevendays B.Itmarksthefirstdayofwinter. C.ItreferstotheWinterSolstice. D.TheSanjiuperiodisinMinorCold 2WhatisaspecialcustominTianjininMinorCold A.Eatinghotpot B.Buyingcabbage C.HavingHuangyacal D.HavingvitaminAandBpills. 3HowdotheCantoneseeatglutinousrice A.Theyfryandtoastit B.Theyeatitfordinner C.Theysteamitwithsoysauce D.Theymixitwithmanyotherthings
Chinesedoubleamputee截肢climberXiaBoyureceivedthemostvotes1globaltobecomethe2019LaureusSportingMomentoftheYearwinneronMonday. Xiacameoutfromaninitiallistof10nomineesbeforethreefinalistsweremade2knowtothepublicearlierthismonth. Xiahadlostbothhislegsin1975duringhisfirstattempttoreach3world'shighestpeakofQomolangmaduetofrostbite.Hechallengedthesummitin20142015and20164 wellbuthisdreams5breakowingtoavalancheearthquakeandbadweatherrespectively. Xiafinallymade6inhisfifthattemptonMay142018becomingthefirstChinesedoubleamputeeclimber7reachthesummitofQomolangma. ClimbingtothesummitofQomolangmaisalwaysadreamandgoalforme.I8fightforitoverthepastdecades.DespitebadknocksseveraltimesInevergaveup.Ithinkthedeterminationmademylifesocolorfuland9meaningXiatoldChinesemedia. Xiaaddedthathisnextgoalwillbe7+2namelythehighestsummitsofseven10continentplustheSouthPoleandNorthpole.
假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改 增加:在缺词处加一个漏字符号Ʌ并在其下面写出该加的词. 删除:把多余的词用斜线\划掉 修改:在错的词下画一横线并在该词下面写出修改后的词 注意:1.每处错误及其修改均仅限一词; 2.只允许修改10处多者从第11处起不计分 DearJoes Iammorethandelightedtosincereinviteyoutobeajudgeforaspeechcontest.Ihopeyoucanagreetocome.ForyourreferenceIwillsharewithyouthedetailsasfollow Firstofall.thiscontestfocusesonManandNaturethatisscheduledtostartat2p.mandendsat4p.m.nextweekinClassroom301.TenplayerswillattendthecontestgivetheirpreparedspeechesInmyopinionnotonlycanyouprovideuswithourprofessionaljudgmentbutalsoyoucanenjoysceneryaroundourschool.Youwillsurelyhaveagoodtimeinthisbeautifulspringday. I'llbeverymuchgratefulifyoucanacceptmyinvitations.Iamlookingforwardtoyouarrival. Yours Jenny
有化合价升降的反应是氧化还原反应．下列一定是氧化还原反应的是
AdanceteamfromAtlantaUSusedthebeautifulJiangsufolksongJasmineFlowerintheirperformanceontheTVshowAmazingChinese.Thesong1composeduringtheQingDynastyAd1616﹣1912wasoneofthefirstChinesesongstobecomepopularabroad. Thetrueoriginofthesong2hasmanyregionalvariationswasn'tdiscovered3twoscholarspublishedanarticleshowingthehistorybetweenthefolksongandYangzhouDitty小调anold﹣fashionedtypeoffolkmusic. Thepopularityofthesongmakesit4symboltopresentChinesecultureontheworldstage.Aworld﹣famousItaliancomposeraddedthesong5hisoperaTurandot6appearintheopera'sfirstpublicperformancein1926helpedimproveits7globefame. Intheclosingceremonyofthe2004AthensOlympicsaChinesegirlinstantlyimpressedaudience8herwonderfulsingingofthesong.It9chooseasmusicplayedattheawardceremonyinthe2008BeijingOlympicsbringingusbothnationalprideandgreatartistic10enjoy.
假定你是红星中学的李华你的英国朋友Peter热爱体育运动他将作为交换生到你校学习一年.请你给他写封邮件主要内容包括: 1.介绍你校体育课程及活动; 2.推荐一项中国传统体育项目. 注意:1.词数100左右; 2.可以适当增加细节以使行文连贯.
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