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下面是一组探究二氧化碳性质的对比实验，该对比实验得出的结论是（ ）①CO2密度比空气大 ②CO2能够与水发生化学反应③CO2不能使干石蕊纸花变色 ④CO2不支持燃烧．
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某实验小组利用下列实验装置探究二氧化碳的化学性质图K6－13请根据实验装置和实验内容回答下列问题1探
下面是研究氧气的性质水的组成二氧化碳的性质燃烧条件的实验根据图示回答问题.1实验A中铁丝在氧气中燃烧
某实验小组利用下面实验装置探究二氧化碳的化学性质请根据实验装置和实验内容回答下列问题1探究二氧化碳与
某实验小组利用下面实验装置探究二氧化碳的化学性质图Z5－11请根据实验装置和实验内容回答下面问题1探
我们曾经做过以下一组对比实验该对比实验得出的结论是
二氧化碳密度比空气密度大
二氧化碳能够与水发生化学反应
二氧化碳不能使干石蕊纸花变色
二氧化碳不支持燃烧
实验是进行科学探究的重要方式某同学设计如下图所示实验探究二氧化碳的有关性质请填空1实验1采用了科学探
案例下面是某位教案备课库教师讲授二氧化碳第一课时的教学片段[问题与情景]如下图装置向烧杯中倾倒一瓶气体
某化学兴趣小组的探究实验表明二氧化碳与一氧化碳的性质有很大的不同对这一结论的原因解释比较合理的是
一氧化碳有毒，二氧化碳无毒
一氧化碳有还原性，二氧化碳无还原性
一氧化碳不溶于水，二氧化碳能溶于水
1个CO分子比一个CO
2
分子少一个氧原子
阅读下列两个相关材料材料1教科书二氧化碳的性质的部分呈现内容二氧化碳溶于水的过程中有没有发生化学变化
对比法是重要的研究方法之一下列探究不需要进行对比实验的是
物质溶解性的大小
空气中氧气体积分数的测定
二氧化碳与水的反应
二氧化锰能否加快过氧化氢分解速率
实验是进行科学探究的重要方式某同学设计如图所示实验探究二氧化碳的有关性质请填空请填空1实验1采用了科
实验是进行科学探究的重要方式某同学设计如下图所示实验探究二氧化碳的有关性质请填空1实验1采用了科学探
变量控制是设计对比实验的核心在探究二氧化碳与水的反应中某同学做了以下对比实验取四朵用石蕊溶液染成紫色
通过实验可观察到：实验Ⅱ、Ⅲ中紫花没有变色，实验Ⅰ、Ⅳ中紫花变为红色。
实验Ⅲ与实验Ⅳ对比，控制的变量为小花是否与水接触。
实验Ⅰ与二氧化碳的性质无关，是辅助实验，证明了酸可以使紫色石蕊溶液变红。
这四组实验既证明了二氧化碳易溶于水，还证明了二氧化碳与水反应生成酸。
如图是有关二氧化碳性质的探究实验图中插入集气瓶内的四朵纸花是用石蕊试纸做成1为保证实验成功必须将盛放
某实验小组在研究二氧化碳的性质时【提出问题】二氧化硫与二氧化碳均属于非金属氧化物是否具有相似的化学性
小明一组的同学在进行实验室制取二氧化碳的实验时发现气体产生的速度太慢了他跟组员们说这可能是石灰石加的
猜想假设
反思评价
设计实验
得出结论
实验是进行科学探究的重要方式某同学设计如下图所示实验探究二氧化碳的有关性质请填空1实验1采用了科学探
取一支100mL医用注射器抽入50mL常温常压下干燥的二氧化碳再迅速抽入50mL蒸馏水立即用橡胶塞塞
我们曾经做过以下一组对比实验该对比实验得出的结论是
二氧化碳密度比空气密度大
二氧化碳能够与水发生化学反应
二氧化碳不能使干石蕊纸花变色
二氧化碳不支持燃烧
为了探究二氧化碳能否与氢氧化钠反应小宁同学用如图所示装置进行实验发现试管内液面上升时由此得到结论二氧
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Everyanimalsleepsbutthereasonforthishasremainedfoggy.Whenlabratsarenotallowedtosleeptheydiewithinamonth.1. Oneideaisthatsleephelpsusstrengthennewmemories.2Weknowthatwhileawakefreshmemoriesarerecordedbyreinforcing加强connectionsbetweenbraincellsbutthememoryprocessesthattakeplacewhilewesleephavebeenunclear. Supportisgrowingforatheorythatsleepevolvedsothatconnectionsbetweenneurons神经元inthebraincanbeweakenedovernightmakingroomforfreshmemoriestoformthenextday.3. Nowwehavethemostdirectevidenceyetthatheisright.4Thesynapsesinthemicetakenattheendofaperiodofsleepwere18percentsmallerthanthosetakenbeforesleepshowingthattheconnectionsbetweenneuronsweakenwhilesleeping. IfTononi'stheoryisrightitwouldexplainwhywhenwemissanight′swefinditharderthenextdaytoconcentrateandlearnnewinformation﹣ourbrainsmayhavesmallerroomfornewexperiences. Theirresearchalsosuggestshowwemaybuildlastingmemoriesovertimeeventhoughthesynapsesbecomethinner.Theteamdiscoveredthatsomesynapsesseemtobeprotectedandstayedthesamesize.5YoukeepwhatmattersTononisays. A.Weshouldalsotrytosleepwellthenightbefore. B.It'sasifthebrainispreservingitsmostimportantmemories. C.Similarlywhenpeoplegoforafewdayswithoutsleepingtheygetsick. D.Theprocessestakeplacetostopourbrainsbecomingloadedwithmemories. E.That'swhystudentsdobetterintestsiftheygetachancetosleepafterlearning. F.SleepisthepricewepayforlearningsaysGiulioTononiwhodevelopedtheidea. G.Tononi'steammeasuredthesizeoftheseconnectionsorsynapsesinthebrainsof12mice.
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Whenaskedabouthappinessweusuallythinkofsomethingextraordinaryanabsolutedelightwhichseemstogetrarertheolderweget. Forkidshappinesshasamagicalquality.Theirdelightatwinningaraceorgettinganewbikeisunreserved毫无掩饰的. Intheteenageyearstheconceptofhappinesschanges.Suddenlyit'sconditionalonsuchthingsasexcitementloveandpopularity.Icanstillrecalltheexcitementofbeinginvitedtodancewiththemostattractiveboyattheschoolparty. Inadulthoodthethingsthatbringdeepjoy﹣lovemarriagebirth﹣alsobringresponsibilityandtheriskofloss.Foradultshappinessiscomplicated复杂的. Mydefinitionofhappinessisthecapacityforenjoyment.Themorewecanenjoywhatwehavethehappierweare.It'seasytooverlookthepleasurewegetfromthecompanyoffriendsthefreedomtolivewherewepleaseandevengoodhealth. Iexperiencedmylittlemomentsofpleasureyesterday.FirstIwasoverjoyedwhenIshutthelastlunch﹣boxandhadthehousetomyself.ThenIspentanuninterruptedmorningwritingwhichIlove.WhenthekidsandmyhusbandcamehomeIenjoyedtheirnoiseafterthequietoftheday. Psychologiststellusthattobehappyweneedamixofenjoyableleisuretimeandsatisfyingwork.Idon'tthinkthatmygrandmotherwhoraised14childrenhadmuchofeither.Shedidhaveanetworkofclosefriendsandfamilyandmaybethisiswhatsatisfiedher. Wehoweverwithsomanychoicesandsuchpressuretosucceedineveryareahaveturnedhappinessintoonemorethingwe'vegottohave.We'resoself﹣consciousaboutourrighttoitthatit'smakingusmiserable.Sowechaseitandequalitwithwealthandsuccesswithoutnoticingthatthepeoplewhohavethosethingsaren'tnecessarilyhappier. Happinessisn'taboutwhathappenstous﹣it'sabouthowweseewhathappenstous.It'stheskillfulwayoffindingapositiveforeverynegative.It'snotwishingforwhatwedon'thavebutenjoyingwhatwedopossess. 1Asonegrowsolderone. A.tendstobelieveresponsibilitymeanshappiness B.associateshis/herhappinesslesswithothers C.willtakefewerrisksinpursuinghappiness D.feelsithardertoexperiencehappiness 2WhatcanwelearnabouttheauthorfromParagraphs5and6? A.Shecareslittleaboutherownhealth. B.Sheiseasilysatisfiedbythingsindailylife. C.Sheenjoysthefreedomoftraveling. D.Sheprefersgettingpleasurefromhousework. 3Peoplewhoequalhappinesswithwealthandsuccess. A.paytoomuchattentiontotheirrighttohappiness B.considerpressuresomethingblockingtheirway C.areatalosstomakecorrectchoices D.aremorelikelytobehappy 4Whichofthefollowingcanbestexplainthemainideaofthepassage? A.Godhelpsthosewhohelpthemselves. B.Eachmanisthemasterofhisownfate. C.Happyishewhoiscontent. D.Successleadstohappiness.
InthedepthsoftheFrenchGuianeserainforesttherestillremainunusualgroupsofindigenous土著的people.Surprisinglythesepeoplelivelargelybytheirownlawsandtheirownsocialcustoms.AndyetpeopleinthisareaareinfactFrenchcitizensbecauseithasbeenacolony殖民地oftheFrenchRepublicsince1946.IntheorytheyshouldlivebytheFrenchlawisoftenignoredorunknownthusmakingthemintoaninterestingareaof'lawlessness'intheworld.ThelivesofthesepeoplehavefinallybeenrecordedthankstotheeffectsofaFrenchmanfromPariscalledGin.Ginspentfivemonthsinearly2015exploringthemostremotecornersofthisareawhichsitsontheedgeoftheAmazonrainforestwithhalfitspopulationofonly250000livinginitscapitalCayenne.'IhaveaspeciallovefortheFrenchGuianesepeople.Ihaveworkedthereonandoffforalmosttenyears'saysGin.'I'vebeenabletokeepfirmfriendshipswiththem.ThusIhavebeenallowedtogainaccesstotheirlivingenvironment.Idon'tseeitasalawlessland.ButratherIseeitasanareaoffreedom.''Iwantedtoshowtheaudienceaphotographicrecordtouchingupontheuncivilizedlife'continuesGin.'Iprefertoworkinblackandwhitewhichallowsmetoshowdifferentspecificworldsmoreclearly.'Hisblack﹣and﹣whitepicturespresentaworldalmostlostintime.Thesepicturesshowpeopleseeminglypushedintoaworldthattheywereunpreparedfor.Theselocalcitizensnowhavetobalancetheirtraditionalself﹣supportinghuntinglifestylewiththelifestyleofferedbythemodernFrenchRepublicwhichbringswithitnotonlynecessarystatewelfarebutalsoalcoholismbetrayalandevensuicide.1WhydoestheauthorfeelsurprisedabouttheindigenouspeopleinFrenchGuiana?A.TheyseldomfollowtheFrenchlaw.B.TheyoftenignoretheGuianeselaw.C.Theyareseparatedfromthemodernworld.D.TheyarebothGuianeseandFrenchcitizens.2GinintroducedthespecialworldoftheindigenousGuianeseas.A.atourguideB.ageographerC.afilmdirectorD.aphotographer3WhatisGin'sattitudetowardsthelivesoftheindigenousGuianese?A.Cautious.B.Doubtful.C.Uninterested.D.Appreciative.4Whatdoestheunderlinedword'it'inthelastparagraphreferto?A.ThemodernFrenchlifestyle.B.Theself﹣supportinghunting.C.Theuncivilizedhunting.D.TheFrenchRepublic.
AdraftofChina'sfirst1environmentprotectiontaxlawsubmittedtothetoplegislative立法机构bodyforinitialdiscussiononMondaymayimpose2heavypenalties处罚onpollutersthaneverbefore. TheStandingCommitteeoftheNationalPeople'sCongressreadthedraftduring3bimonthlymeetingfromMondaytoSaturday. Thedraftdesignatesfourtaxabletypesofpollution﹣airborneandwaterpollutantssolidwasteandnoise.Companiesandindividuals4directlydischargethese5subjecttothetaxFinanceMinisterLouJiweitoldthetoplegislatorsonMondaymorning. Thedraft6adoptthecurrentstandardsforpollutantdischargefeesasthelowerrangeandprovinciallevelgovernmentswouldhavetheauthority7raisetaxfeesbasedontheenvironmentalsituationintheirjurisdictionsLousaid. Thedraftalsostipulatesincentivestoreduceemissions8saythetaxpayerscouldreceivea50percentreduction9theyloweredtheirairborne10waterpollutantemissionsbyhalfofthenationalorprovincialstandards.
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Measles麻疹whichoncekilled450childreneachyearanddisabledevenmorewasnearlywipedoutintheUnitedStates14yearsagobytheuniversaluseoftheMMRvaccine疫苗.Butthediseaseismakingacomebackcausedbyagrowinganti﹣vaccinemovementandmisinformationthatisspreadingquickly.Alreadythisyear115measlescaseshavebeenreportedintheUSAcomparedwith189foralloflastyear. Thenumbersmightsoundsmallbuttheyaretheleadingedgeofadangeroustrend.Whenvaccinationratesareveryhighastheystillareinthenationasawholeeveryoneisprotected.Thisiscalledherdimmunitywhichprotectsthepeoplewhogethurteasilyincludingthosewhocan'tbevaccinatedformedicalreasonsbabiestooyoungtogetvaccinatedandpeopleonwhomthevaccinedoesn'twork. Butherdimmunityworksonlywhennearlythewholeherdjoinsin.Whensomerefusevaccinationandseekafreerideimmunitybreaksdownandeveryoneisinevenbiggerdanger. That'sexactlywhatishappeninginsmallneighborhoodsaroundthecountryfromOrangeCountyCaliforniawhere22measlescaseswerereportedthismonthtoBrooklynN.Y.wherea17﹣year﹣oldcausedanoutbreaklastyear. Theresistancetovaccinehascontinuedfordecadesanditisdrivenbyarealbutverysmallrisk.Thosewhorefusetotakethatriskselfishlymakeotherssuffer. Makingthingsworsearestatelawsthatmakeittooeasytooptout决定不参加ofwhataresupposedtoberequiredvaccinesforallchildrenenteringkindergarten.Seventeenstatesallowparentstogetanexemption豁免sometimesjustbysigningapapersayingtheypersonallyobjecttoavaccine. Nowseveralstatesaremovingtotightenlawsbyaddingnewregulationsforoptingout.Butnoonedoesenoughtolimitexemptions. Parentsoughttobeabletooptoutonlyforlimitedmedicalorreligiousreasons.Butpersonalopinions?Notgoodenough.Everyoneenjoysthelife﹣savingbenefitsvaccinesprovidebutthey'llexistonlyaslongaseveryonesharesintherisks. 1Thefirsttwoparagraphssuggestthat. A.asmallnumberofmeaslescasescanstartadangeroustrend B.theoutbreakofmeaslesattractsthepublicattention C.anti﹣vaccinemovementhasitsmedicalreasons D.informationaboutmeaslesspreadsquickly 2Herdimmunityworkswellwhen. A.exemptionsareallowed B.severalvaccinesareusedtogether C.thewholeneighborhoodisinvolvedin D.newregulationsareaddedtothestatelaws 3Whatisthemainreasonforthecomebackofmeasles? A.Theoveruseofvaccine. B.Thelackofmedicalcare. C.Thefeaturesofmeaslesitself. D.Thevaccineopt﹣outsofsomepeople. 4Whatisthepurposeofthepassage? A.Tointroducetheideaofexemption. B.Todiscussmethodstocuremeasles. C.Tostresstheimportanceofvaccination. D.Toappealforequalrightsinmedicaltreatment.
Genetechnologyisakindofsciencefocusingontheresearchofhumangenes.Itisalsocalledbiologicalengineeringwhichisdrawingmoreandmoreattentionnow.Sometimesit'sahottopicdiscussedbypeople. Thegreatestthingthatgenetechnologycandoistocureseriousdiseasesthatdoctorsatpresentcanalmostdonothingwithsuchascancerandheartdisease.Everyyearmillionsofpeoplearemurderedbythesetwokillers.Andtodatedoctorshavenotfoundaneffectivewaytocurethem.Butifthegenetechnologyisappliednotonlycanthesetwodiseasesbecuredcompletelybutalsothegreatamountofmoneypeoplespendoncuringtheirdiseasescanbesavedthereforeitbenefitstheeconomyaswell.Inadditionhumanlifespanbanbeprolonged. Genetechnologycanhelppeopletogivebirthtomorehealthyandcleverchildren.SomefamilieswiththeEnglishroyalfamilybeingagoodexamplehavehereditary遗传的diseases.Thismeanstheirchildrenwillforsurehavethefamilydiseasewhichisagreattroubleforthesefamilies.Inthepastdoctorscoulddonothingabouthereditarydiseases.Butgenetechnologycansolvethisproblemperfectly.Scientistsjustneedtofindthewronggeneandcorrectitandahealthychildwillbeborn. Somepeopleareworryingthatthegeneresearchcanbeusedtoproducehumanbeingsinlargequantities.Inthepastfewyearsscientistshavesucceededincloningasheepthereforethesepeoplepredictthathumanbabieswouldsoonbecloned.ButIbelievedclonedbabieswillnotcomeoutinlargequantitiesformostcouplesintheworldcanhavetheirbabiesinverynormalway.Ofcoursethegovernmentsmusttakecaretocontrolgenetechnology. 1Whatdoesthesetwokillersinthesecondparagraphreferto? A.Hereditarydiseasesandcancer. B.Thetwomurdererswhokilledtheclonedbaby. C.Thetwodiseasesofcancerandheartdisease. D.Genetechnologyandanothertreatmentofthetwodiseases. 2What'sthemainideaofthethirdparagraph? A.Genetechnologycanhelppeopletogivebirthtoababy. B.Genetechnologycanbeusedtoclonehumanbabies. C.Genetechnologycanbeusedtotreathereditarydiseases. D.GenetechnologycansolvealltheproblemsoftheEnglishroyalfamily. 3Inwhatwaycangenetechnologyhelptotreathereditarydiseases? A.Usinggenetechnologyhumanbabiescanbecloned. B.Usinggenetechnologyscientistsfindthewronggeneandcorrectit. C.Genetechnologyhelpspeoplewithhereditarydiseasestolivelonger. D.Doctorscancurecancerandheartdiseasewiththehelpoftechnology.
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ThefilmbaseonanovelwrittenbyRobertJamesWallerhasreceivedmuchpopular.
Mostpeopleagreethathonestyisagoodthing.ButdoesMotherNatureagree?Animalscan'ttalkbutcantheylieinotherways?Cantheyliewiththeirbodiesandbehavior?Animalexpertsmaynotcallitlyingbuttheydoagreethatmanyanimalsfrombirdstochimpanzeesbehavedishonestlytofoolotheranimals.Why?Dishonestyoftenhelpsthemsurvive. Manykindsofbirdsareverysuccessfulatfoolingotheranimals.Forexampleabirdcalledtheploversometimespretendstobehurtinordertoprotectitsyoung.Whenapredator猎食动物getsclosetoitsnesttheploverleadsthepredatorawayfromthenest.How?Itpretendstohaveabrokenwing.Thepredatorfollowsthehurtadultleavingthebabybirdssafeinthenest. Anotherkindofbirdthescrubjayburiesitsfoodsoitalwayshassomethingtoeat.Scrubjaysarealsothieves.Theywatchwhereothersburytheirfoodandstealit.Butcleverscrubjaysseemtoknowwhenathiefiswatchingthem.Sotheygobacklaterunburythefoodandburyitagainsomewhereelse. Birdscalledcuckooshavefoundawaytohavebabieswithoutdoingmuchwork.How?Theydon'tmakenests鸟巢.Insteadtheygetintootherbirds'nestssecretly.Thentheylaytheireggsandflyaway.Whenthebabybirdscomeouttheiradoptive收养的parentsfeedthem. Chimpanzeesorchimpscanalsobesneaky.Afterafightthelosingchimpwillgiveitshandtotheother.Whenthewinningchimpputsoutitshandtoothechimpsarefriendlyagain.Butananimalexpertoncesawalosingchimptakethewinner'shandandstartfightingagain. Chimpsaresneakyinotherwaystoo.Whenchimpsfindfoodthattheylovesuchasbananasitisnaturalforthemtocryout.Thenotherchimpscomerunning.Butsomecleverchimpslearntocryverysoftlywhentheyfindfood.Thatwayotherchimpsdon'thearthemandtheydon'tneedtosharetheirfood. AschildrenmanyofuslearnthesayingYoucan'tfoolMotherNature.Butmaybeyoucan'ttrusthereither. 1Aploverprotectsitsyoungfromapredatorby. A.gettingclosertoitsyoung B.drivingawaytheadultpredator C.leavingitsyounginanothernest D.pretendingtobeinjured 2ByChimpanzeesorchimpscanalsobesneakyparagraph5theauthormeans. A.chimpsarereadytoattackothers B.chimpsaresometimesdishonest C.chimpsarejealousofthewinners D.chimpscanbeselfishtoo 3Whichofthefollowingistrueaccordingtothepassage? A.Cuckoosfooltheiradoptiveparentsbymakingnonests. B.Thelosingchimpwonthefightbytakingthewinner'shand. C.Somechimpslowertheircrytokeepfoodawayfromothers. D.Somecleverscrubjaysoftenstealtheirfoodback. 4Whichofthefollowingmightbethebesttitleofthepassage? A.Doanimalslie? B.DoesMotherNaturefoolanimals? C.Howdoanimalslearntolie? D.Howdoeshonestyhelpanimalssurvive?
TenyearsagoSeanCarterwasastudentatuniversity.Onenighthewas1inacarwithafriendwhohadbeendrinking.They2andSeanwasleftinawheelchair3abraininjury.HehasbeenunabletowalkortalksincethenandhismomJennyhasbeen4him. Whatwereyoufeeling5youfoundoutIhadbeeninacar6?Seanaskshismom.Seanspeaksbyusinghisfingerto7wordsontoaniPad.Thosewordsarethentranslatedintoaudio.IwasshockedJennysays.Itwasjustsohardseeingyourchild's8bodyinabedforsolong.Youcouldn'tdoanythingfortwoyears. OvertheyearsSeanhasbecomemore9thoughhesayshe'snotyetreadytodoeverythingalone.it's10livingwithyourmomwhenyou're32yearsoldJennysayswhileSean11andrepliesOhyeah! Jenny63thenaskshersonIfthiswasourlast12whatwouldyouwanttosay? Letme13yourightthereSeantellshismom.Iknowyouwillbehereformanyyearsto14.ButIwantyoutoknowhow15Iamforwhatyouhavedoneforme.Yougaveupyourlifetogivemealife. Yeah.Butit'sOKJennyresponds.16isreallythevaluegoodsthatwehaveandifyoucan17timewithsomebodyelsethat'sprobablythemostimportantthingyoucandoforsomeone.It'stheonlythingthat18. SeanrepliesIdon'tsaythisenough.You'rethepictureofunconditional19.Iadmireyour20tobethebestmomyoucanbeandyoudoafinejob.Iloveyoubeyondthemoonandback. 1A.chatting B.arguing C.driving D.playing 2A.crashed B.dashed C.attacked D.struggled 3A.of B.with C.for D.on 4A.givinginto B.takingcontrolof C.lookingforwardto D.takingcareof 5A.before B.through C.when D.because 6A.accident B.seat C.road D.track 7A.put B.type C.draw D.move 8A.strong B.heavy C.soft D.lifeless 9A.independent B.generous C.clever D.careful 10A.hard B.interesting C.foolish D.funny 11A.worries B.laughs C.cries D.complains 12A.dinner B.trip C.operation D.conversation 13A.reward B.forget C.stop D.expect 14A.come B.spend C.waste D.disappear 15A.regretful B.thankful C.painful D.understanding 16A.Hardship B.Friendship C.Emotion D.Time 17A.kill B.save C.share D.calculate 18A.matters B.survives C.lasts D.lives 19A.joy B.reward C.apology D.love 20A.idea B.duty C.story D.confidence
ItwasacoldMarchdayinHighPointNorthCarolina.ThegirlsontheWesleyanAcademysoftballwerewaitingfortheirnextturnsatbatduringpracticestampingtheirfeettostaywarm.Eighth﹣graderTaylorBisbeeshivered发抖alittleasshewatchedherteammateParisWhiteplay.Thetwodidn'tknoweachotherwell﹣Taylorhadjustmovedtotownamonthorsobefore. SuddenlyParisfelltothegroundParis'seyerolledbackTaylorsays.Shestartedshaking.Iknewitwasanemergency. ItcertainlywasParishadsufferedasuddenheartfailure.WithoutimmediatemedicalcarePariswoulddie.Atfirstnoonemoved.Thegirlswereinshock.ThenthesoftballcoachshoutedoutDoesanyoneknowCPR? CPRisalife﹣savingtechnique.TodoCPRyoupressonthesickperson'schestsothatbloodmovesthroughthebodyandtakesoxygentoorgans.Withoutoxygenthebrainisdamagedquickly. AmazinglyTaylorhadjusttakenaCPRcoursethedaybefore.Stillshehesitated.Shedidn'tthinksheknewitwellenough.ButwhennooneelsecameforwardTaylorrantoParisandbegandoingCPRItwasscary.IknewitwasthedifferencebetweenlifeanddeathsaysTaylor. Taylor'sswiftactionhelpedherteammatescalmdown.Onegirlcalled911.Twomorerantogettheschoolnursewhobroughtadefibrillatoranelectronicdevices器械thatcanshocktheheartbackintowork.Luckstayedwiththem:Paris'heartbeatreturned. IknowIwasreallyluckyParissaysnow.Mostpeopledon'tsurvivethis.Myteamsavedmylife ExpertssayParisisright.ForasuddenheartfailurethesinglebestchanceforsurvivalishavingsomeonenearbystepinanddoCPRquickly. TodayParisisbackonthesoftballteam.Taylorwillapplytocollegesoon.Shewantstobeanurse.IfeelmoreconfidentinmyactionsnowTaylorsays.IknowIcanactunderpressureinascarysituation. 1WhathappenedtoParisonaMarchday? A.Shecaughtabadcold. B.Shehadasuddenheartproblem. C.Shewasknockeddownbyaball. D.Sheshiveredterriblyduringpractice. 2WhydoesParissayshewaslucky? A.Shemadeaworthyfriend. B.Sherecoveredfromshock. C.ShereceivedimmediateCPR. D.Shecamebackonthesoftballteam. 3WhichofthefollowingwordscanbestdescribeTaylor? A.Creativeandkind. B.Courageousandcalm. C.Warm﹣heartedandgenerous. D.Intelligentandprofessional.
Iamabletolookatnaturedirtycurtainshangbeforeverydustywindows.
IgetajobinanofficesinceIwaswelleducatedthanmyfellows.
Ifatfirstyoudon'tstryagain.
假如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的以下作文.文中共有10处错误每句中最多有两处.错误涉及单词的增加删除或修改. 增加:在缺词处加一个漏词符号∧并在此符号下面写出该加的词. 删除:把多余的词用斜线\划掉. 修改:在错词下面划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. Mysoccercoachretiredinlastweek.Iwantedtodoanythingspecialforhimathisretirementparty.MymummakesthebetterbiscuitsintheworldsoIdecidetoaskherforhelp.Mumtaughtmesomebasicstepofbaking.Iinsistedondoingmostofthebakingmyself.Ithoughtthebiscuitswerereallywell.MyonlymistakewasthatIdroppedsomeonthefloorafterIwaspackingthemup.AtapartymycoachwithabiscuitinhismouthaskedsurprisinglywhomadethemandjokedImighthavetoretireagainnextyearjustgetsomemoreofthesebiscuits. Myfavoritepictureatthepartyisofmycoachandmeenjoythebiscuitswithhappylaughter!
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