首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
图1为某人工生态系统净化生活污水的原理示意图，图2表示某生态系统的碳循环过程，其中甲～丁代表该生态系统的四种成分，请据图分析回答： （1）输入该人工湿地生态系统的能量有 和生活污水中有机物的...
查看本题答案
包含此试题的试卷
高三下学期生物《》真题及答案
点击查看
你可能感兴趣的试题
如图1虚线方框内表示一个生态系统箭头表示该生态系统能量流动的一般性模型图2是生态系统碳循环示意图图中
图一为某人工生态系统净化生活污水的原理示意图图二表示该生态系统的碳循环过程请据图回答问题1生态系统的
下图中的图1是某生态系统碳循环的示意图图2表示该生态系统部分种群的食物关系请据图分析回答图2中a同化
下图1是利用人工湿地净化生活污水主要含有机物的原理简图图2为某生态农业发展模式图请根据图1回答第12
下图1是利用人工湿地净化生活污水主要含有机物的原理简图图2为某生态农业发展模式图请根据图1回答第12
地球是肾脏——湿地是富有生物多样性多功能的生态系统它包括自然湿地和人工湿地两大类对于净化水源蓄洪抗旱
下图1表示能量流经初级消费者的示意图图2表示种群数量的增长曲线图3表示人工构建的生态工程图4表示人工
图1表示能量流经初级消费者示意图，图中的②表示初级消费者同化所得的能量
图2中a曲线的λ不变，b曲线中的λ由最大变为0
该生态工程的建立，没有改变营养级间能量传递效率，但提高了能量的利用率
流经图4人工湿地生态系统的总能量是绿色植物和化能自养生物固定在有机物中的能量
下列图一为某生态系统的碳循环示意图图二表示在该生态系统中能量流经第二营养级的示意图请据图分析回答人类
328分为建设美丽中国必须加大环境治理其中污水治理是很重要的一环下面是利用人工湿地净化生活污水的原理
图1为某人工生态系统净化生活污水的原理示意图图2表示某生态系统的碳循环过程其中甲～丁代表该生态系统
下面是利用人工湿地净化生活污水主要含有机物的原理简图据图回答该系统中如果有过量污水流过则不能被充分净
为建设美丽中国必须加大环境治理其中污水治理是很重要的一环下面是利用人工湿地净化生活污水的原理简图请据
下面左图表示利用人工生态湿地净化生活污水的原理示意图右图表示该生态系统的碳循环过程请据图回答问题11
下图1是利用人工湿地净化生活污水主要含有机物的原理简图图2为某生态农业发展模式图请根据图1回答第12
下图1是利用人工湿地净化生活污水主要含有机物的原理简图图2为某生态农业发展模式图请根据图1回答第12
下图中的图1是某生态系统碳循环的示意图图2表示该生态系统部分种群的食物关系请据图分析回答据图提出两项
下列图一为某生态系统的碳循环示意图图二表示在该生态系统中能量流经第二营养级的示意图请据图分析回答参与
下图1是利用人工湿地净化生活污水主要含有机物的原理简图图2为某生态农业发展模式图请根据图1回答第12
图1表示某生态系统中碳循环的示意图甲乙丙丁代表生态系统的4种成分图2表示能量流经第二营养级的示意图A
图1是某生态系统碳循环和能量流动示意图图2是该生态系统中某些生物的相对数量关系示意图请据图分析回答:
热门试题
更多
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∧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. WhileIwasconsideringwhatfoodtobuyinastoreayoungmanworkedthereaskedmehowIwasdoing.AsusualItoldtruth.HesaidI'llberightback.IthoughthewasanotherpersonwhothoughtItalkedtoomanyandpolitelyexcusehimself.Iwasheadingoutwhilehecamebackandhandedtomeabeautifulbunchofflowers.TiedtohimwasanotesayingHaveaHappyNewYear.Theactofthisyoungmanalmostmovedmetotear.Ithadbeenanextremedifficultday.Myheartwashurtandanangelcametotreatmewithkindness.
研究人员通过研究遮荫和全光对野生川贝母光合作用的影响为人工引种提供理论支持．图1中①～④为川贝母叶肉细胞内某些代谢过程图2为遮荫和全光条件下川贝母光合速率部分研究数据的曲线图图中光合有效辐射越强代表光照强度越强请分析回答 1图1中③和④发生反应的场所分别为和． 2图2光合有效辐射为a时川贝母叶肉细胞中能发生的图1反应有．填编号 研究人员进一步检测了川贝母叶片光合作用的相关参数结果如表 3植物中捕获光能的物质是可用溶剂提取获得． 4由图2直接可知川贝母人工引种的适宜条件是“遮荫”“全光”理由是在一定光合有效辐射下其．多选 A．呼吸速率更高B．净光合速率更高C．叶绿体数量更多D．有机物积累量更多 5请结合表中数据阐述遮荫与全光条件下光合速率出现图2差异的原因．
消炎药洛索洛芬的一种合成路线如下 回答下列问题 1A的化学名称为烃基﹣R的结构简式为． 2脱羧反应是羧酸失去羧基放出CO2的反应．①～⑦中包含脱羧反应的有． 3写出反应⑤的化学方程式注明反应条件． 4G中所含官能团的名称为． 5写岀与C互为同分异构体的芳香酯的结构简式核磁共振氢谱为两组峰峰面积比为32． 6设计由A和乙炔为起始原料制备3﹣丁烯酸CH2＝CHCH2COOH的合成路线无机试剂任选．
钛广泛应用于航天军事化工医疗等领域．钛在高温下易和氧氮碳等元素化合提炼纯钛条件苛刻．从高钛渣主要为TiO2提炼海绵钛流程如下 氯化后的粗TiCL4中含有FeCl3SiCl4AlCl3VOCl3等杂质相关物质的沸点如下表 回答下列问题 1高钛渣经过破碎磁选磨粉后送氯化车间磨粉的目的是． 2“分馏”得到的低沸点物是．分馏难以除去VOCl3原因是．加入铝粉使VOCl3转化为VOCl2便于除去写出铝粉与VOCl3反应的化学方程式． 3“除铝”的方法是用水湿润的活性炭加入到粗TiCl4使AlCl3转化为而除去． 4“还原”需要在Ar的气氛中进行原因是．副产物经电解生成可循环使用． 5制备钛的一种新型方法是将TiO2粉末浇注成形烧结后作阴极以石墨为阳极CaCl2为熔盐进行电解CaCl2熔盐不参与电极反应起溶解和传导O2﹣的作用 ①阳极牛成的气体除O2外还有填化学式． ②阴极的电极反应式为．
先天性夜盲症是一种由于遗传因素等引起的先天性眼病．某先天性夜盲症家系调查结果如图1所示II﹣3不携带致病基因相关基因为B/b． 1据图判断该病的遗传类型为． A．常染色体隐性B．常染色体显性C．伴X染色体隐性D．伴X染色体显性 2II﹣5的基因型为．现II﹣5怀孕后对II﹣6作了相关的基因检测其电泳结果如图2．若对胎儿进行基因检测结果可能有下列ABC三种．若结果为则说明胎儿患病若结果为则说明胎儿是携带者． 3II﹣5在16周时经检查发现胎儿患唐氏综合征某同学对该病进行了分析你认为合理的是多选． A．父亲或母亲在产生配子过程中第21号同源染色体未分离 B．父亲和母亲都提供含异常染色体的配子 C．父亲提供正常的配子与母亲提供含异常染色体的配子 D．胎儿体细胞的染色体组成一定为45+XX 4Ⅲ﹣11的夜盲基因的传递途径为．在一次体检中Ⅲ﹣11发现自己还患有红绿色盲基因为H/h家里其他人均不患此病则这两种致病基因在遗传上遵循遗传定律．通过咨询II﹣7和II﹣8若再生像Ⅲ﹣11那种情况的孩子比例约为20%可推测II﹣7的基因型为．
Onourwaytothehouseitwasraining1hardthatwecouldn'thelpwonderinghowlongitwouldtake2getthere.ItwasinthemiddleofPearlCity. Wewerefirstgreetedwiththebarkingbyapack3dogsseventobeexact.Theywerewelltrainedbytheirmasters4hadgreatexperiencewithcaringfortheseanimals.Ourhostssharedmanyoftheirexperiencesand5recommendwonderfulplacestoeatshopandvisit.Forbreakfastwewereabletoeatpapaya木瓜andotherfruitsfromtheirtreesinthebackyard. Whentheywerefreefromworktheyinvitedustolocaleventsandletusknowofaninteresting6competetowatchtogetherwiththestorybehindit.Theyalsosharedwithusmany7traditionstoriesaboutHawaiithatwere8hugepopularwithtourists.Onthelastdayofourweek﹣longstaywe9invitetoattendaprivateconcertonabeautifulfarmontheNorthShoreunderthestars10listentomusiciansandmeetinginterestinglocals.
CalvinGilliandidn'tbelievethatNorwaywastheplaceforanadventurousholiday.Howeversomefriendstoldhimtogothereandhelovedit. I'manextreme﹣sportsmaniac.I'vetraveledtomanydifferentcountriesbutIdidn'texpectNorwaytobeagoodplaceforanextremeholiday.TouristsusuallyvisitNorwaybecauseofitsoldVikinghistoryortogofishingandboatinginthefamousfjords峡湾toenjoyarelaxingholidayortogoclimbingtoenjoythebeautyofnature.ButIdidn'tgoforfishingIwantedadventure. SkiingisthebestthingyoucandoinNorway.SvartisentheBlackIceglacier冰川iswonderful.Theiceisnottheusualwhitebutadeepbluecolorlikethesea.Howeveryouhavetowearspecialclothesbecauseskiingonamillion﹣year﹣oldglaciercanbeverydangerous. ThenthereisHunderfossenFamilyParkforTollPark.Youcangowaterskiingandiceskating.ItiscertainlyabeautifulplacebutitismoreexpensivethanvisitingotherpartsofNorway. IalsovisitedtheHomenkollenSkiJumpinOslo.Theviewfromthetopoftheskijumpwaswonderfulandthetheskimuseumwasveryinteresting.Iwantedtotryajumpbutunfortunatelyit'sonlyforprofessionalski﹣jumpers.AnywayIwasverytiredandIneededabreaksoIwentbacktomyhotelandgotsomesleep. NextyearIamgoingtotakemygirlfriendtoNorwaytoo.SheishavingherholidayinAustralianowandshewantstohaveadifferenttypeofadventurefornextyear. 1Theunderlinedwordmaniacinpara.2referstosomeonewho. A.Hasastronginterestinsomething B.Hasabadopinionofsomething C.Expectsthingstobesuccessful D.Likestocompetewithothers 2WhatdidCalvinGilliandoinNorway? A.Ski﹣jumping B.Climbing C.Fishing D.Skiing 3What'sthebesttitleforthetext? A.CalvinGillian'sHolidayCountries B.TravelinDifferentCountries C.HistoricalPlacesinNorway D.ANorwegianAdventure
WhenIwasaboyIwasalwayshappytoseethoselittlebrowncoins.AfteryearsIwasstillveryhappytopickuppenniesontheground. Iusuallysavedthemup.Iusuallyboughtapackofgumorabagofchipswhenitwasenough.AftergrowingupIheardastoryaboutcoins.Itwassaidthatourlovedpeoplesometimeswouldleavepenniesonthegroundinfrontofus.Peoplewantedtoshowusthatwewerelovedandwatchedoverkindly.Ineverdoubtedthatstoryevenasanadult.Itisdifficultformetofindalotofmoneyonthegroundbutpenniesarethereallthetime.MaybethatiswhyIstillenjoyseeingthemandpickingthemupnomatterhowdirtyoroldtheyare. AfewmonthsagoIwaswalkingtothelocalpostofficetomailaletter.AsIenteredtheroomIsawnotonenottwobutfourpenniesshininginthesunlight.Ismiledandpickedthemup.IkepttheminmyhandsasIwalkedinthepostoffice.FourisOkanofficesaidtoalady.Theladybegansearchingherpurse.Herfacewentred.Iunderstoodwhathadhappened.Ilaughedtomyselfatthissurprisingmoment.Iplacedmypenniesonthedeskbeforeher.ThesmileIgotinreturnwasworthathousanddollars. Thecoinsweren'tsovaluabletomebuttheydidmattertoher.Ijustperformedalittlekindness.Iwashappy. 1Whatdidtheauthorusetopickupwhenhewasyoung? A.Funnytoys. B.Littlebrowncoins. C.Smallthingsonthefloor. D.Moneyhisparentsputondesks. 2Whatmighttheauthorprobablybuywhenhesavedenoughpennies? A.Asetofstorybooks. B.Abagofsugar. C.Aboxofchocolates. D.Apackofchips. 3Whengrownuptheauthor. A.sawsomecarelesswomenlostcoins B.stillbelievedthestoryaboutcoins C.thoughtrichpeoplethrewcoinsonpurpose D.foundoldpeopleforgetcoinsontheground 4Whatcanwelearnfromthispassage? A.Doingsmallactsofkindnessisgood. B.Everycoinshouldbeusedtobuyimportantthings. C.Weshouldlookforcoinswhenwearewalking. D.Paymoreattentiontowhatyouhearfromnowon.
Inanonlineclassdevelopinghealthypatternsofcommunicationwithprofessorsisveryimportant.1WhileIhaveonlylistedtwoofeachtheseareobviouslymanyothersituationsthatcanarise. Dos •2Questionsaboutsubjectcontentaregenerallywelcomed.Beforeaskingquestionsaboutthecoursedesignreadthesyllabus教学大纲andlearningmanagementsysteminformationtobesuretheanswerisn'thidinginplainsight. •Participateindiscussionforums论坛blogsandotheropen﹣endedforumsfordialogue.3Besuretostayontopicandnotofferirrelevantinformation.Makeapointandmakeitsafeforotherstodothesame. Don'ts •Don'tsharepersonalinformationorstories.Professorsarenottrainednursesfinancialaidexpertsoryourbestfriends.Ifyouareinneedofadeadlineextensionsimplyexplainthesituationtotheprofessor.4 •Don'topenlyexpressannoyanceataprofessororclass.5Whenastudentattacksaprofessoronthesocialmediathelanguageusedactuallysaysmoreaboutthestudent.Ifthereistrulyaconcernaboutaprofessor'sprofessionalismorabilitybesuretouseonlinecourseevaluationstocalmlyofferyourcomments. A.That'swhattheyarefor. B.Turntoanonlineinstructorforhelp. C.Ifmoreinformationisneededtheywillask. D.Rememberthatonlineprofessorsgetalotofe﹣mails. E.Belowaresomecommondosanddon'tsforonlinelearners. F.Everyonehastakenanot﹣so﹣greatclassatonetimeoranother. G.Askquestionsbutmakesuretheyaregoodthoughtfulquestions.
MakingbeersonthemoonmightseemlikeapipedreamtomanybutforagroupofstudentsfromtheUniversityofCaliforniaatSanDiegothereisachancetotaketheirresearchbeyondEarth'ssurface. TheLab2MooncompetitionheldbyTeamIndusisofferingstudentsthechancetosecureaspotontheTeamIndusrocketthisyear. Takingcraftbeertothenextlevelthestudentswanttotestwhetherit'spossibleforyeast酵母toworkandcreatebeeronthemoon.Howevertheybelievetheexperimentisnotjustacreativeconceptforastronautsit'salsoimportantforthedevelopmentofdrugsandyeast﹣containingfoodlikebread. TheideastartedoutwithafewlaughsamongagroupoffriendssaidNeekiAshariafifth﹣yearbioengineeringstudentsatUCSanDiego.Weallappreciatethecraftbeer.WhenweheardthattherewasanopportunitytodesignanexperimentthatwouldgouponIndia'smoonlanderwethoughtwecouldcombineourhobbywiththecompetitionbyfocusingonthepracticalityofyeastinouterspace. Thepreparationworkforthebeer﹣uptothestageofaddingyeast﹣willallbedoneonEarthandratherthanseparatingthefermentation发酵andcarbonationstageofmakingbeertheteamplanstocombinethem. ThisremovestheneedtoreleaseCO2accumulatedintheprocesswhichmayresultincleanlinessandsafetyissuesoutinspace. IfselectedTeamOriginalGravitywillbethefirsttomakebeerinouterspaceandthefermentationwilltakeplaceinacontainernobiggerthanasodacan. AllteamscompetingfortheplacewillshowcasetheirideasinBangaloreIndiainMarch. Sadlyyouwon'tbeenjoyingmoonbeerinyourlocalcraftbeerbaranytimesoonasnosampleswillbebroughtback.Howeverthissmallexperimentcouldprovideimportantdataonjusthowpracticalitisforustomakeandcreateourownresourcesonotherplanetsandmoonsbylearninghowconsumables消耗品behaveindifferentenvironments. 1Howdidthestudentsfeelwhentheygotthechancetodesigntheexperiment? A.Excited. B.Nervous. C.Confident. D.Casual. 2WhatdoestheunderlinedwordThisinParagraph6referto? A.Themixingoftwostages. B.AddingyeastonEarth. C.ThepreparationworkonEarth. D.Fermentationandcarbonation. 3Whatcanwelearnabouttheexperimentfromthepassage? A.Ithasbeendesignedbasedonsimilarexperiments. B.It'squitecompetitivecomparedwithotherdesigns. C.It'sdesignhasalreadybeenapprovedbyTeamIndus. D.Itsprocesswasadaptedtomakeitsaferandgreener. 4Whatdoestheauthorthinkofthestudents'idea? A.Itseemslikeapipedream. B.It'sextremelycomplicated. C.It'smeaningfulandhopeful. D.It'screativebutimpractical.
ForWesterndesignersChinaanditsrichculturehavelongbeenaninspirationforWesterncreative. It'snosecretthatChinahasalwaysbeenasourceofinspirationfordesignerssaysAmandaHillchiefcreativeofficeratA+ENetworksaglobalmediacompanyandhometosomeofthebiggestfashionshows. EarlierthisyeartheChinaThroughALookingGlassexhibitioninNewYorkexhibited140piecesofChina﹣inspiredfashionableclothingalongsideChineseworksofartwiththeaimofexploringtheinfluenceofChineseaesthetics美学onWesternfashionandhowChinahasfueledthefashionableimaginationforcenturies.TheexhibitionhadrecordattendanceshowingthatthereishugeinterestinChineseinfluences. ChinaisimpossibletooverlooksaysHill.ChinesemodelsarethefacesofbeautyandfashioncampaignsthatselldreamstowomenallovertheworldwhichmeansChinesewomenarenotjustconsumersoffashion﹣theyarecentraltoitsmovement.Ofcourseonlyaretoday'stopWesterndesignersbeinginfluencedbyChina﹣someofthebestdesignersofcontemporaryfashionarethemselvesChinese.VeraWangAlexanderWangJasonWuaretakingonGalianoAlbazMarcJacobsandbeatingthemhandsdownindesignandsalesaddsHill. ForHillitisimpossiblenottotalkaboutChinaastheleadingplayerwhendiscussingfashion.ThemostfamousdesignersareChinesesoarethemodelsandsoaretheconsumersshesays.Chinaisnolongerjustanothermarketinmanysensesithasbecomethemarket.IfyoutalkaboutfashiontodayyouaretalkingaboutChina﹣itsinfluencesitsdirectionitsbreathtakingclothesandhowyoungdesignersandmodelsarefinallyacknowledgingthatinmanyways. 1WhatcanwelearnabouttheexhibitioninNewYork? A.Itpromotedthesalesofartworks. B.Itattractedalargenumberofvisitors. C.ItshowedancientChineseclothes. D.ItaimedtointroduceChinesemodels. 2WhatdoesHillsayaboutChinesewomen? A.Theyaresettingthefashion. B.Theystartmanyfashioncampaigns. C.Theyadmiresupermodels. D.Theydobusinessallovertheworld. 3Whatdotheunderlinedwordstakingoninparagraph4mean? A.learningfrom B.lookingdownon C.workingwith D.competingagainst 4Whatcanbeasuitabletitleforthetext? A.YoungModelsSellingDreamstotheWorld B.AChineseArtExhibitionHeldinNewYork C.DifferencesBetweenEasternandWesternAesthetics D.ChineseCultureFuelingInternationalFashionTrends
我国科学家在天然气脱硫研究方面取得了新进展利用如图装置可发生反应H2S+O2═H2O2+S已知甲池中发生的反应下列说法正确的是
下列有关叙述不正确的是
AWelcomeGift Darioandhismotherlovedtheirnewapartment.Thelivingroomwaslargeenoughfortheirpiano.Thatnightthetwoofthem1sidebysideatthepiano.Theyplayedjazzmusictocelebratetheirnewhome.Theloud2filledtheroomandmadethemfeelveryhappy. Thenextmorning3theirhappinessdisappeared.Someonehadlefta4undertheirdoorduringthenight.Oneoftheirneighborhadwrittentocomplain抱怨aboutthesoundofthepiano.Dario'smotheraskedthebuildingsuperintendent管理员ifheknewanythingaboutit.Buthesaidthattheywereall5peopleandhecouldn'timagineanyofthemhaddonethat.LaterthatmorningDariosuggestedthattheywritealettertotheir6andapologizefortheirplaying. Maybewecouldgoand7everyoneinperson.hismothersaid. Whatifweinvitedthemtocomeherefora8instead?Darioasked. Theybothlovedthe9.Overthenextfewdaystheysentoutinvitationsandprepareddesserts10theirguests.Theydecoratedtheapartmentwithstreamers彩带andpartylights. Finallythedayoftheparty11.Someguestsbroughtpresents.Othersbroughtflowers.Someevenbroughtdessertsto12.OnewomanMrs.Gilbert13Dario'smotherwithabookofpianomusicbyChopin. Iheardyouplayingtheothernightshesaid.Thesoundswokemeoutofbed.I14thatyoumightplaylikethiseverynight.SoIwroteashortnote.Ihopeyoudon'tthinkIdislikedtheplaying. Dario'smothersmiledatMrs.Gilbert.Ithinkmaybewe15youanapology.shesaid.Ididn't16howlateitwaswhenwewereplaying.Maybeweshouldplaysomequietermusicatnight. Youplayyouplay!Mrs.Gilbertsaid.Ilikewhatyouplay!Justnotsoloudatnight.Shepointedtothebookshehadgiventhem.Thesesongsarenotsuch17music. Thesesongsarebeautifulmusic.Dario'smothersaid.Wewillbe18toplaythemintheevening. Andwewon'tplaysoloudorlate!Dariosaid.Hewasalreadylookingforwardto19thenewmusic.Morethanthathoweverhewashappytoseethebigsmileonhismother'sface.Itgavehimafeelingof20andmadehimfeelthattheywerehomeatlast. 1A.sat B.stood C.lay D.walked 2A.voice B.ring C.music D.cry 3A.therefore B.however C.otherwise D.instead 4A.note B.poster C.bill D.report 5A.proud B.rich C.lucky D.nice 6A.neighbors B.friends C.relatives D.audience 7A.blame B.instruct C.question D.visit 8A.party B.concert C.show D.play 9A.experience B.idea C.performance D.action 10A.to B.with C.for D.from 11A.continued B.arrived C.passed D.finished 12A.order B.sell C.share D.advertise 13A.treated B.presented C.helped D.served 14A.promised B.admitted C.agreed D.worried 15A.give B.send C.offer D.owe 16A.realize B.remember C.understand D.accept 17A.sweet B.strange C.funny D.loud 18A.brave B.sorry C.happy D.afraid 19A.changing B.practicing C.recording D.writing 20A.equality B.freedom C.warmth D.sympathy
HowtoMakeFriends Friendshipisaveryimportanthumanrelationshipandeveryoneneedsgoodfriends.Goodfriendshiphasmanybenefits.Itofferscompanionshipimprovesself﹣worthandpromotesgoodhealth.Therearetimesinourlivessuchaswhenwehaverecentlymovedintoanewtownorchangedourjobsorschools.Suchchangesoftenleavesuswithoutafriend1.Butformanyofustheprocessisdifficultandrequirescourage.Belowaresomehelpfulsuggestionsonhowtomakeandkeepfriends. 1.Associatewithothers. Thefirststeptomakingfriendsisassociatingwithotherpeople.Youcangotopublicplacestomeetnewpeople.Besidesyouwillneedtomakeyourselfknownbybecominganactivememberofsuchplaces. 2.Startaconversation Startingaconversationisthesecondmostimportantstepinmakingnewfriends.2Youcanalwaysstarttheconversation.Beingabletomakesmalltalkisaveryusefulskillinrelatingwithotherpeople. 3.3 Choosingfriendswithcommoninterestsisimportantinbuildingfriendshipastheseinterestswouldalwaysbringyouandyourfriendtogether.Hangingoutwillalwaysbeapleasantexperience. 4.Letitgrow. Itisagoodthingtostayintouch.Howevertrynottopressyournewfriendwithcallsmessagesorvisitsasthiswouldlikelywearhimorheroutandfinallyyoumayloseyourfriend.4Thebestfriendshipsaretheonesthatgrownaturally. 5.Enjoyyourfriendship Thebestwaytoenjoyyourfriendshipistoallowyourfriendstobethemselves.5Trynottochangethemfromwhotheyaretowhatyouwantthemtobe.Becomethekindoffriendyouwillwantyourfriendtobetoyou. A.Becheerful. B.Dothingstogether. C.Donotwaittobespokento. D.Trynottofindfaultwithyourfriends. E.Makingnewfriendscomeseasyforsomepeople. F.Forafriendshiptodevelopyouneedtostayintouch. G.Soyouwillneedtogiveyourfriendtimetoreacttoyou.
关于线粒体的起源有多种观点其中“内共生起源”学说认为真核细胞中的线粒体是由侵入细胞或被细胞吞入的某种原核细胞经过漫长的岁月演变而来的．请结合所学知识和图1作答． 1图1中乙所示的过程体现了细胞膜具有的结构特点是原始真核细胞吞噬某些原始原核生物具有选择性是与其细胞膜上的物质有关． 2研究发现线粒体的内外膜的化学成分和功能是不同的据图分析最可能的原因是． 如图2表示细胞周期以及一个细胞周期结束后可能出现的几种状态．图中箭头长度表示各时期所占比例[]中填写图中的标号 3胸腺嘧啶核苷TdR可抑制细胞DNA合成它主要作用于图中的[]时期． 4由图2可知一次分裂结束后细胞可能出现的状态包括．多选 A．继续下一个细胞周期B．分化为无增殖能力的细胞 C．细胞凋亡D．进入G0期成为暂不增殖细胞 5如果细胞内存在DNA解旋的现象则此时细胞可能处于．多选 A．S期B．G2期C．分裂期中期D．分裂期后期 6据图2信息可以推断细胞周期的长短主要取决于哪个时期的长短阐明理由．．
AliceMooreisateenagerentrepreneur创业者whoinMay2015setupherbusinessAilieCandy.Bythetimeshewas13hercompanywasworthmillionsofdollarswiththeinventionofasuper﹣sweettreatthatcouldsavekids'teethinsteadofdestroyingthem. ItallbeganwhenMoorevisitedabankwithherdad.Ontheoutingshewasofferedacandybar.Howeverherdadremindedherthatsugarytreatswerebadforherteeth.ButMoorewassickofmissingoutoncandies.SoshedesiredtogetroundthewarningWhycan'tImakeahealthycandythat'sgoodformyteethsothatmyparentscan'tsaynotoit?WiththatinmindMooreaskedherdadifshecouldstartherowncandycompany.Herecommendedthatshedosomeresearchandtalktodentistsaboutwhatahealthiercandywouldcontain. Withherdad'spermissionshespentthenexttwoyearsresearchingonlineandconductingtrialstogetarecipethatwasbothtastyandtooth﹣friendly.Shealsoapproacheddentiststolearnmoreaboutteethcleaning.Consequentlyshesucceededinmakingakindofcandyonlyusingnaturalsweetenerswhichcanreduceoralbacteria. Moorethenusedhersavingstogetherbusinessofftheground.AfterwardssheandherfathersecuredtheirfirstbusinessmeetingwithasupermarketownerwhofinallyagreedtosellMoore'sproduct﹣CanCandy. AsCanCandy'ssuccessgrowssodoesMoore'scredibilityasayoungentrepreneur. Mooreisenthusiasticaboutthecandyshecreatedandshe'salsopositiveaboutwhatthefuturemightbring.Shehopesthateverykidcanhaveacleanmouthandabroadsmile. Meanwhilewithherparents'helpMooreisgenerallyabletoliveanormalteenagelife.Althoughshefoundedhercompanyearlyoninlifeshewasn'tdrivenprimarilybyprofit.Moorewantstouseheruniquetalenttohelpothersfindtheirsmiles.Shedonates10%ofAilieCandy'sprofitstoBigSmiles.WithhertalentanddeterminationitappearsthattheskycouldbethelimitforAliceMoore. 1HowdidMoorereacttoherdad'swarning? A.Shearguedwithhim. B.Shetriedtofindawayout. C.Shepaidnoattention. D.Shechosetoconsultdentists. 2WhatisspecialaboutCanCandy? A.Itisbeneficialtodentalhealth. B.Itisfreeofsweeteners. C.Itissweeterthanothercandies. D.Itisproducedtoadentists'recipe. 3WhatdoesMooreexpectfromherbusiness? A.Toearnmoremoney. B.Tohelpothersfindsmiles. C.Tomakeherselfstandout. D.Tobeatothercandycompanies. 4WhatcanwelearnfromAliceMoore'sstory? A.Fameisagreatthirstoftheyoung. B.Ayouthistoberegardedwithrespect. C.Positivethinkingandactionresultinsuccess. D.Successmeansgettingpersonaldesiressatisfied.
下列图示与对应的叙述正确的是
FoodisahotissueinChina.Eating.1considertobeanimportantpartofeachdayisfarbeyondsimplymeetinganeed2nowpeoplesometimeshardlyhavetimetoenjoytheirfoodbecausetheyarelivinginafast﹣pacedsociety.Theyneedfastfood.That's3China'sfast﹣foodmarketexpands. Thefirstforeignfast﹣foodrestauranttoarriveinChinawascalledKFCquicklyfollowedbyPizzaHutMcDonaldsandsoon.Withthe4developofChinaforeignfast﹣foodchainsarerealizinghigh﹣speedgrowthinChina.Howeverbeingunable5providebalancednutritionthesejunkfoods6criticizebyhealthexpertsforalongtime.Theexpertsalsoshowthatsomeforeignfast﹣foodconsists7certaincancer﹣causingchemicals. 8actualtheChinesedietcontainsmanyofitsown9traditionfast﹣fooddishes.AmongthemdumplingssoybeanmilkandnoodlesarethemostpopularComparedwithforeignfastfood.thosearehealthierButmanyChinesestillenjoythespecialtasteandthegoodenvironmentintheforeignfast﹣foodchains.It'shightimethatthey10wakeuptothefactofthepotentialriskswithforeignfast﹣food.
RegardlessoftheweatherorthedistancePaulWilsonwillmakesurelow﹣incomestudentsinhisneighborhoodarriveattheircollegeclassesontime. Aretiredengineer76﹣year﹣oldWilsonhasbeen1freeridestocollegestudentsforthepasteightyears.Sincehefirststarted2hiscartotheyoungpeopleWilsonhas3anastonishing64000milesandhashadcountlesspleasantandoftenhumorous4withthestudentshetransportstoandfromschool.Thestudentswhohe's5havegoneontobecomephysiciansteachersandengineersbutwhatthey'vealsogotoutoftheirtimeinschoolisfindingarolemodelandafriendinWilson.Somestudents6callhimGrandpa. TinaStern7ridesfromWilsonforallherfouryearsincollegeandthetripsmeantmuchmoretoherthanjustfree8.It'snotjustarideyou'renotjustsittingtherein9silenceorwithyourheadphonesonSternsaid.Heasksyouquestionsandactually10theanswerssothenexttimeyouridewithhimhe'll11thosethings. Wilsonfirstworkedasadriverthroughastudent﹣supportprogrammeofthenon﹣profitorganisationOnPointforCollege.Althoughthe12asksthemembersonlytodrivestudentstoandfromtheirclassesWilsonoftengoes13toensurethewelfareandsafetyofthestudents.Iftheyhaveproblemswithregistration.Wilsonisthereto14them.IftheyrunoutofcertaindailynecessitiesWilsonwilldrivetotheneareststoreandpurchasewhat'sneeded.IfastudentgetshungryonthelongdrivestoandfromschoolWilsonnever15tobuythemameal. FormanystudentsWilson'shelpisnotonlyappreciatedit'salsoentirely16forthemtobeabletocompletetheircollegeeducation.Somestudentsdon'thaveareliablecarwhileothershaveto17vehicleswithparentswhoworksixdaysaweek.ForthemridingwithWilsonhas18themtocompletetheireducation﹣butaccordingtoWilsonhebenefitsjustasmuchfromthe19.IjustlovedrivingandIlovethesekidsWilsonsaid.It'ssuchan20tobeapartofthesekids'livesevenjustforafewhoursgettingtoknowthemandhearingtheirstories. 1A.linking B.sending C.offering D.distributing 2A.donating B.lending C.delivering D.volunteering 3A.paved B.covered C.measured D.wandered 4A.arguments B.interviews C.negotiations D.conversations 5A.met B.driven C.addressed D.greeted 6A.even B.ever C.once D.already 7A.earned B.received C.assessed D.demanded 8A.transportation B.style C.time D.communication 9A.forced B.awkward C.ridiculous D.suspicious 10A.selects B.recites C.guesses D.remembers 11A.acton B.settleon C.checkon D.agreeon 12A.club B.league C.college D.programme 13A.far B.around C.beyond D.forwards 14A.assist B.watch C.urge D.warn 15A.expects B.attempts C.manages D.hesitates 16A.extra B.unusual C.necessary D.adequate 17A.share B.fuel C.repair D.exchange 18A.required B.allowed C.reminded D.convinced 19A.experience B.arrangement C.appreciation D.employment 20A.effort B.ambition C.privilege D.convenience
假定你是李华你的美国朋友Lisa写信告诉你她打算利用暑假打工但她的父母不同意请你根据以下要点给Lisa写一封回信 1.分析Lisa父母不同意的理由 2.你给Lisa的具体建议. 注意1.词数100左右 2.可以适当增加细节以使上下文连贯
某种浓差电池的装置如图所示碱液室中加入电石渣浆液[主要成分为CaOH2]酸液室通入CO2以NaCl为支持电解质产生电能的同时可生产纯碱等物质．下列叙述错误的是
短周期主族元素WXYZ的原子序数依次增加．WXY最外层电子数之和为15且由这三种元素组成的某盐在净水过程中可以做絮凝剂．下列说法正确的是
1Surveysareabouttheboysandgirlsfrom. A.China B.Japan C.America D.England 2Thepercentageofgirlssingingkaraokeis. A.63 B.83 C.42 D.27 3Thepeoplewhohavecell/carphonesareintheagegroupof. A.15﹣29 B.10﹣14 C.11﹣15 D.20s 4Whatwouldtheboysandgirlsmostliketodo? A.Travelabroad B.Singkaraoke C.Ownvideogames D.Smoke
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两处.错误涉及一个单词的增加删除或修改. 增加在此处加一个漏字符号∧并在其下面写出修改的词. 删除把多余的词用斜线\划掉. 修改在错的词下划一横线并在其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11处起不计分. DearMr.Principal IlearnedthenewsonTVthatanaccidentwashappenedtotheChinesestudentsinaPEclass.Isuggestthatourschoolorganizesafirstaidcoursethatisveryuseful.Thereasonswhyafirstaidcourseisnecessaryareasfollowswestudentslackfirstaidknowledges.Afirstaidcoursecan'tsatisfyourneed.Besideitwillgiveinformationaboutmanysituationsandgiveusthechancetopracticefirstaidtreatments. Asforthecoursetheycanbegivenmonthly.Thecourseshouldmainincludethepracticeoffirstaidtreatments.Itwouldbetteriftheexpertsinfirstaidwereintroducedtoinstructingthecourse. Yours Peter
下列有关实验的操作现象和对应的解释或结论都正确的是
Researchersfoundanimalsloversexercisetheirpettwiceadayfor24minuteseachtime﹣﹣﹣atotaloffivehoursand36minutesaweek.Ontopofthattheaveragedogowneralsotakespartpetouttotakethreelongwalkseachweekaddinganothertwohoursand33minutestothetotal.Butthosewithoutadogspendanaverageofjustonehourand20minutesperweekexercisingbygoingtothegymorheadingoutforawalkorjog.Andalmosthalfofnon﹣petownersadmittheytakenoexercise. Aspokespersonsaidthedifferencebetweenthetwowasthatgoingtothegymcanfeellikeaboringtaskwhiledog﹣walkingcanbefarmoreenjoyable.Havingacoupleofshortwalkseverydaysoonaddsupandthisresearchshowsthatitamountstomoretimethanpeoplespendinthegymhesaid.Andgymgoersexerciseinsideanair﹣conditionedgymwhiledogwalkersareabletojogformilesandenjoyfreshairwhenadmiringtheGreatBritishcountryside. Thestudyof5000peopleincluding3000dogownersshowedthat57percentofthoseconsideredwalkingthedogastheirmainformofexercise.Morethreequarterssaidtheywouldrathertaketheirdogforawalkthangotothegym.Atotalof86percentsaidtheyenjoyedtakingtheirpetouteachdaywithjust22percentsayingtheysometimessawitasaboringtask.Butonly16percentofrespondentsaidtheyenjoyedexercisinginthegymwhilealmost70percentconsidereditaboringtask. Thesurveyshowsthathavingadogtowalkactuallyencouragesregularexercisewith60percentofpetownerssayingtheyalwaysgoforawalkwiththeirdog﹣﹣﹣evenwhentimerisprecious宝贵的. 1Whatisthemainideaofthispassage? APeoplewithoutapetusuallygotothegym B.Petownersspendnotimeexercisinginthegym C.Dogownersusuallygetmoreexercisethangymgoers D.Peopledoexerciseeitherbywalkingadogorgoingtothegym 2Accordingtothestudyonaverageeachweekdogownerswalktheirdogfor. A.onehourand20minutes B.eighthoursand9minutes C.twohoursand36minutes D.fivehoursand36minutes 3ThewritermentionedwhatthespokespersonsaidinParagraph2mainlytoshowthat. A.walkingadogcanbetiringsometimes B.takingexerciseinthegymcanbeverycomfortable C.peopleprefertoexerciseinthegymratherthanwalkadog D.walkingadogismoreenjoyablethanexercisinginthegym 4TheunderlinedwordrespondentsinParagraph3probablyreferstopeoplewho. A.likewalkingtheirdogs B.enjoygoingtothegym C.tookpartinthestudy D.organizedthestudy
假定你是李华你观看了你的英国好友Leslie参加的学校英语演讲比赛直播.他的演讲SuccessComesfromHardWork获得了一等奖.请你给他写一封邮件内容包括 1.表示祝贺 2.评论与赞赏 3.表达祝愿. 注意 1.词数100左右 2.可适当增加细节以使内容连贯 3.开头与结尾已给出但不计入总词数. DearLeslie Yours LiHua
亚硝酰硫酸NOSO4H主要用于染料医药等工业．实验室用如图装置夹持装置略制备少量NOSO4H并测定产品的纯度．已知NOSO4H遇水分解但溶于浓硫酸而不分解． 1装置A制取SO2 ①A中反应的化学方程式为． ②导管b的作用是． 2装置B中浓HNO3与SO2在浓H2SO4作用下反应制得NOSO4H． ①该反应必须维持体系温度不得高于20℃采取的措施除了冷水浴外还可以是只写1种． ②开始反应缓慢待生成少量NOSO4H后温度变化不大但反应速度明显加快其原因是． 3装置C的主要作用是用离子方程式表示． 4该实验装置存在可能导致NOSO4H产量降低的缺陷是． 5测定亚NOSO4H的纯度 准确称取1.380g产品放入250mL的碘量瓶中加入0.1000mol•L﹣160.00mL的KMnO4标准溶液和10mL25%H2SO4溶液然后摇匀．用0.2500mol•L﹣1草酸钠标准溶液滴定消耗草酸钠溶液的体积为20.00mL． 已知2KMnO4+5NOSO4H+2H2O＝K2SO4+2MnSO4+5HNO3+2H2SO4 ①配平MnO4﹣+C2O42﹣+＝Mn2+++H2O ②滴定终点时的现象为． ③亚硝酰硫酸的纯度＝．[MNOSO4H＝127g•mol﹣1]
OPENINGSANDPREVIEWS AnimalsOutofPaper Yolo！ProductionsandtheGreatGriffonpresenttheplaybyRajivJosephinwhichanorigami折纸术artistinvitesateenagetalentandhisteacherintoherstudio.MerriMilwedirects.Inpreviews.OpensFeb.12.WestParkPresbyterianChurch165W.86thSt.212﹣868﹣4444. TheAudience HelenMirrenstarsintheplaybyPeterMorganaboutQueenElizabethIIoftheUKandherprivatemeetingswithtwelvePrimeMinistersinthecourseofsixtyyears.StephenDaldrydirects.AlsostarringDylanBakerandJudithIvey.PreviewsbeginFeb.14.Schoenfeld236W.45thSt.212﹣239﹣6200. Hamilton Lin﹣ManuelMirandawrotethismusicalaboutAlexanderHamiltoninwhichthebirthofAmericaispresentedasanimmigrantstory.ThomasKaildirects.Inpreviews.OpensFeb.17.Public425LafayetteSt.212﹣967﹣7555. OntheTwentiethCentury KristinChenowethandPeterGallagherstarinthemusicalcomedybyBettyComdenandAdolphGreenaboutaBroadwayproducerwhotriestowinamoviestar'sloveduringacross﹣countrytrainjourney.ScottEllisdirectsforRoundaboutTheatreCompany.PreviewsbeginFeb.12.AmericanAirlinesTheatre227W.42ndSt.212﹣719﹣1300. 1WhatistheplaybyRajivJosephprobablyabout? A.Atypeofart. B.Ateenager'sstudio. C.Agreatteacher. D.Agroupofanimals. 2WhoisthedirectorofTheAudience? A.HelenMirren. B.PeterMorgan. C.DylanBaker. D.StephenDaldry. 3WhichplaywillyougotoifyouareinterestedinAmericanhistory? A.AnimalsOutofPaper. B.TheAudience. C.Hamilton. D.OntheTwentiethCentury.
热门题库
更多
高三上学期化学
高二下学期化学
高二下学期生物
高三下学期生物
高三下学期化学
高三上学期英语
高二下学期英语
教案备课库
高三下学期英语
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
国际法
教案备课库
湘公网安备 43130202000226号