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实验室常用高锰酸钾制取氧气． （1）写出该反应的化学方程式． （2）用排水法收集氧气结束时，要先把导管移出水面，再熄灭酒精灯．请解释原因．
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写出下列反应的化学方程式1碳在充足的氧气中完全燃烧2钢丝插入硝酸汞溶液中3实验室加热高锰酸钾制取氧气
请根据下列仪器装置图回答有关问题1实验室制取二氧化碳时选择C.为发生装置而不选择B.的原因_____
如图是实验室用高锰酸钾制取氧气的装置请回答问题1仪器a的名称__________2用高锰酸钾制取O2
实验室常用下图中一些装置制取氧气第17题图1写出图中仪器a的名称__________2若用加热高锰酸
实验室常用加热高锰酸钾的方法制取少量氧气1请写出反应的化学方程式2现欲制取2.24L标准状况的氧气需
根据下图回答问题⑴实验室用高锰酸钾制取氧气应选用的发生装置是___________收集氧气的装置是_
下图是实验室中常用的几种装置请回答下列问题1写出有编号仪器的名称①___________②_____
实验室部分仪器或装置如下图所示请回答下列问题1若要组装一套氧气的发生和收集装置可选择图中的_____
如图为实验室常用装置①写出仪器①的名称___②实验室用a装置制氧气反应的化学方程式为___2根据图示
请根据下图回答问题⑴实验室用高锰酸钾制取氧气应选用的发生装置是___________收集氧气的装置是
结合下列图示装置回答有关问题.1写出编号所指仪器的名称ab.写出用B装置制取氧气的反应化学方程式.2
根据下列装置结合所学化学知识回答下列问题.1写出标号仪器①的名称2实验室选择装置A用高锰酸钾制取氧气
现有实验室制取气体的部分装置请结合所学化学知识回答有关问题1请写出图中标有字母的仪器名称ab.2实验
完成下列反应的化学方程式并回答有关问题.1请你用化学方程式表示右图中的三个化学反应①________
根据下图回答问题1实验室常用稀盐酸和石灰石制取二氧化碳该反应的化学方程式为应选用的发生装置是填字母下
实验室有如下气体制取的装置图1写出仪器的名称①________②________2实验室用高锰酸钾制
请根据下图回答问题1实验室用高锰酸钾制取氧气应选用的发生装置是___________收集氧气的装置是
锦州市实验室提供如图5所示的仪器1仪器④的名称是_____________请你写出该仪器的一种用途_
根据下图回答问题1实验室常用稀盐酸和石灰石制取二氧化碳该反应的化学方程式为应选用的发生装置是填字母下
请写出下列反应的化学方程式1实验室加热高锰酸钾制取氧气2碳和二氧化碳高温下反应3镁带燃烧4铁丝在氧气
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15分LastyearmybrotherandIwenttoMiamiforavacation.Someofmyfriendswho1betherebeforesaiditwasawonderfulholidaydestination.Beforewewentwehadplannedformonths.Whenthedaycamewewereready. Afterourplanelandedwewenttothehotel.Wehadmadeourreservationsixmonths2earlybutthemanatthefrontdesksaidtherehadbeenamistake.We3tellthatourroomshadn'tbeenreservedforthatweek4fortheweekafter.Ididn'tunderstand5thiswouldhappenandmycreditcardhadalreadybeencharged6thereservation.What'sworsethehotelhadbeenfullybooked.Whenwewerewonderingwhattodothemanagercameout.Shewas7surprisehelpful.SheapologizedforthemistakeandgaveusaspareVIProomon8topfloor.Wehadneverstayedinsuchanamazingroomandweweren'tchargedextra. ThenextdaymybrotherandIwenttothebeach9wewatchedsomepeopleplayvolleyball.Wegotalittle10sunburnbutthedayhadbeensorelaxingthatwedidn'tmind.
小明家有一支温度计把它插在冰水混合物中时温度为4℃把它插在沸水中时温度为94℃那么1这支温度计准确吗它每小格代表多少摄氏度2当读数为34℃时实际温度为多少3如果用它来测温度为50℃的热水它的示数为多少
10分Bullying欺凌isaprobleminmanyschools.Maybelotsofyouhaveevercomeacrossschoolbullies.1 Ignorethebullyandwalkaway.It'sdefinitelynotacoward'sresponse.Sometimesitcanbeharderthanlosingyourtemper.Walktallandholdyourheadhigh.2 Holdtheanger.Whodoesn'tgetreallyupsetwithabully?3Bullieswanttoknowtheyhavecontroloveryouremotions.Workoutyourangerinotherwayssuchasthroughexerciseorwritingitdown. 4Howeveryouchoosetodealwithabullydon'tusephysicalforce.Notonlyareyoushowingyourangerbutyoucanneverbesurewhatthebullywilldoinresponse.Youaremorelikelytobehurtandgetintotroubleifyouuseviolenceagainstabully.Youcanstandupforyourselfinotherwayssuchasgainingcontrolofthesituationbywalkingaway. Talkaboutit.Itmayhelptotalktoaguidanceadvisorteacherorfriend.5Talkingcanbeagoodoutletforthefearsandfrustrationsthatcanbuildwhenyou'rebeingbullied. A.Takechargeofthesituation. B.Thistypeofbodylanguagemeansyouarenoteasilyharmed. C.Herearesomethingsyoucandotofightbullying. D.Don'tgetphysical. E.Butthat'sexactlytheresponseheorsheistryingtoget. F.Someadultsbelievethatbullyingispartofgrowingup. G.Peopleabovecangiveyouthesupportyouneed.
30分Sometimespeoplecomeintoyourlifeandyouknowrightawaythattheyaremeanttobethere.Theyservesomesortof1toteachyoualessonorhelp2whoyouareorwhoyouwanttobecome.Youneverknow3thesepeoplemaybe﹣﹣﹣yourroommateneighborprofessorlong﹣lostfriendloverorevenacomplete4butwhenyoulockyoureyeswiththemyouknowatthatverymomentthattheywill5yourlifeinsomedeepway.Andsometimesthingshappentoyouandtheymayseem6horribleandunfairatthetimebut7overcomingthesedifficultiesyouwouldhaveneverrealizedyourpotentialstrengthwillpowerorheart.Everythinghappensforan8.Nothinghappensbychanceor9goodorbadluck.Illnessinjurylovelostmomentsoftruegreatnessandstupidity﹣﹣﹣alloccurto10thelimitsofyoursoul.Withoutthesesmalltestslifewouldbelikeasmoothlypavedstraightflatroadtonowhere.Safeandcomfortablebutdulland11.Thepeopleyoumeetwhoaffectyourlifeandthesuccessand12youexperience﹣﹣﹣theyaretheonesthatcreatewhoyouare.Eventhe13experiencescanbelearnedfrom.Ifsomeonehurtsyoubetrays背叛youorbreaksyourheart14themfortheyhavehelpedyoulearnabout15andtheimportanceofbeing16aboutwhomyouopenyourheartto.Ifsomeonelovesyoulovethemback17notonlybecausetheyloveyoubutbecausetheyareteachingyoutoloveandopenyourheartandeyestothingsyouwouldhave18seenorfeltwithoutthem.Makeeveryday19.Appreciateeverymomentandtakefromiteverythingthatpossiblycanforyoumayneverbeabletoexperienceitagain.Peopleareliketeabags﹣﹣﹣youhavetoputtheminhotwaterbeforeyouknowhow20theyare.1A.way B.plan C.purpose D.idea2A.figureout B.giveout C.takeout D.sortout3A.what B.who C.which D.where4A.child B.teacher C.classmate D.stranger5A.affect B.create C.design D.ruin6A.important B.common C.painful D.practical7A.after B.on C.by D.without8A.change B.reason C.effect D.return9A.bymeansof B.onbehalfof C.intermsof D.withregardto10A.improve B.decrease C.test D.set11A.meaningless B.rough C.changeable D.winding12A.decisions B.failures C.achievements D.lessons13A.unforgettable B.bad C.unusual D.interesting14A.appreciate B.ignore C.desert D.forgive15A.independence B.bravery C.trust D.selflessness16A.enthusiastic B.cautious C.crazy D.worry17A.unconsciously B.unconditionally C.carefully D.differently18A.always B.never C.seldom D.sometimes19A.count B.mind C.work D.vary20A.expensive B.fresh C.precious D.strong
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89岁的侯云德院士获得2017年国家最高科学技术奖这位著名的医学病毒学专家发现最小的病毒的半径仅有0.000009毫米将0.000009用科学记数法表示应是
如图所示看漫画读信息回答问题．茶叶要求在避光干燥的条件下贮存常温下保质期一般为18个月为延长茶叶的保质期贮存少量茶叶的方法是将茶叶包装好后放入冰箱中用低温的方法贮存茶叶这样可将茶叶的保质期延长达两年之久．1请解释图中小朋友提出的问题2在炎热的夏天把茶叶从冰箱中取出来后能否马上打开茶叶的包装为什么什么时候才能打开
10分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处错误每句中最多有两处.错误涉及一个单词的增加删除或修改. Istillrememberamathslesson.Mymathsteachercopiedachallengingproblemontheblackboardandasksthewholeclasswhethertherewouldbeonestudentwhoknewwhattoworkitout.Severalminutespassedbutthewholeclasswasincompletelysilence.AsmatteroffactIcameacrosstheprobleminabooktheotherday.HoweverIwalkedtotheblackboardandworkeditoutinnotime.Whatasurprisingexpressionwasonmymathsteacher'sface!Hefeltveryhappythathepraisedmeonpublic.SincethenmathshasbeenbecomeoneofmyfavoritesubjectandIhavealsomaderapidprogressinmaths.
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10分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.错误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. It'sreportedthattheworkersinthedining﹣hallinYantaiUniversityeatleftoversthatcausesgreatconcernandattention.Somesaytheyarejustforshow;othersbelievedtheysetgoodexamplesforusyoungstudents.Inouropinionstheydorightandweshouldlearnfromthem. Infacttheirbehaviorraisesourawarenessoffightwaste.Westudentsshouldneverthrowleftoversandtakewhatwecan'teatwithus.Inanadditionweshoulddevelopthehabitofnotorderingorbuyinglessthanwhatwecaneat.Lastbutnotleasttheworkersinthedining﹣hallshouldallowthestudentsorderhalfthefoodsothattheycaneatthemup. IthinkwestudentsshouldsayNotofoodwasteorneverwillanyonewasteanyfoodinfuture!
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6分 CampAll﹣Star OneofaKindSummerCampsforKids WelcometoCampAll﹣StaryourNo.1summersportscampforkids!LocatedonthefamousKentsHillSchoolcampusbythebeautifullakeCampAll﹣Starhostskidsfromaroundtheworld.Whenthinkingaboutyournextovernightsummercampconsiderthebest﹣CampAll﹣Star! GreatSportsSummerCampsforKids CampAll﹣StarstandsoutamongthesuccessfulcampsintheU.S.Wehavethebestsportsfieldsandcourtstomakeyourchild'ssportscampexperienceasuccessfulone.Yourchildcanenjoyplayingforhoursinanyofourmorethan30sportsandactivitieseachday.Ourcampertostaffrateisthreetoonewhichmakesitpossibleforchildrentoreceivemorecarefulinstruction. Wehaveawidevarietyofactivitiesandsportstochoosefrom:fishingdancebasketballsoccerbaseballandtennis.Boysandgirlsaged8﹣16cancustomizetheirownschedulesinour234or6weeksummercampsessionforkids. TheaimofCampAll﹣Staristodevelopathleticskillsencourageabilitiesinleadershipfairplayandteamworkandprovideafunrewardingandmemorablesummersportscampexperience.Ourstaffhavetheexperienceandqualifiedtrainingnecessarytoensurethatyourchildhasasuccessfulmemorableandenjoyabletimeatoursummercamp. CallTodayAboutOurOvernightSummerCampsforKids Don'tletyourkidswasteanothersummerplayingvideogamesandsittingaround.Letthemenjoytheirtimeandgetsomeexerciseatourexcitingandfriendlysummersportscamp.Informationforourupcomingcampscanbefoundonourwebsite.Foradditionalinformationorquestionscontactustoday.WehopeyourkidscanjoinusatCampAll﹣Star! 1CampAll﹣Starstandsoutamongtheothersbecauseit. A.issurroundedbyabeautifullake B.providesvariousactivitiesandsports C.offerstimelyinformationonitswebsite D.allowschildrentoplayoutsidealldaylong 2OneofthegoalsofCampAll﹣staristo. A.firekids'imagination B.buildupkids'confidence C.developkids'leadershipskills D.promotekids'self﹣control 3Thisadvertisementisintendedfor. A.parents B.coaches C.staff D.Campers
8分TheFBIannouncedonMondaythatithadsuccessfullyhacked入侵intoaniPhoneusedbyagunmanresponsibleforamassshootinginCalifornia.TheannouncementlefttechgiantAppleInc.wonderingaboutthesecurityofoneofitskeyproducts.AndtheFBIwillnottellhowitgotpastthelocks. ThenewsendsalegalbattlethatbeganmorethanamonthagowhentheFBIgotacourtorderfromafederaljudgedemandingthatApplehelpthemtoaccessthedataonthephone.ThephonehadbelongedtoFarook.OnDecember22015FarookandMalikkilled14peopleandwounded22othersinSanBernardinoCalifornia.Thetwowerekilledafewhoursaftertheattack.ThenextdayanFBIteamfoundFarook'siPhone5cinthecar.Wheninvestigatorsturnedonthephoneitaskedthemtoenterafour﹣digitpasscode.Thephonewassettoeraseallofitsdataafter10incorrectguesses.NotevenApplethecompanythatmadethephonehadthecode.TheFBIaskedAppletohelpthemgetaccesstotheinformationstoredinthephone. ApplehelpedtheFBIwithitsinvestigationbutonlytoacertainpoint.TheFBIthenaskedAppletocreateanewversionofthephone'soperatingsystemonewithoutthe10﹣guesslimit.ButApplerefused.CookarguedthatifApplecreatedatooltohackintoaniPhoneandthattoolgotintothewronghandsthesecurityofeveryiPhonewouldbeatrisk. CooknotedthatpeoplestoreanincredibleamountofpersonalinformationontheiriPhones.Thatinformationhesaidneedstobeprotectedfromhackersandcriminals.WhilewebelievetheFBI'sintentionsaregooditwouldbewrongforthegovernmenttoforceustobuildabackdoorintoourproducts. OnMarch21theFBIannouncedthatanoutsidepartyhadcomeforwardwithapossiblewaytobreakintothephone.NowhavingconfirmedthatthecodehasbeencrackedtheFBIhasdroppedthelegalbattlewithApple. 1TheFBIwantstogainaccesstothephoneto. A.locateFarookandarresthim B.monitorFarookandhisteammates C.gettheinformationstoredinit D.helpcreateanoperatingsystem 2Theunderlinedworderasemaybeclosestinmeaningto. A.restore B.delete C.update D.replace 3CookrefusedtohelptheFBIforfearthat. A.theFBIwillknowhowtoestablishtheoperatingsystem B.ApplewilllosethebattleagainsttheFBI C.Apple'suserswillknowtheproducerhasnocodes D.itmaycausesecurityproblemsfortheiPhoneusers 4Whichofthefollowingcanbethebesttitleofthepassage? A.LegalBattleBetweenAppleandFBI B.WorstTerroristEverinHistory C.SecurityConcernsofApple D.AppleHelpsFBIinFightingTerrorism
8分Grown﹣upsareoftensurprisedbyhowwelltheyremembersomethingtheylearnedaschildrenbuthaveneverpracticedeversince.Amanwhohasnothadachancetogoswimmingforyearscanstillswimaswellaseverwhenhegetsbackinthewater.Hecangetonabicycleaftermanyyearsandstillrideaway.Hecanplaycatchandhitaballaswellashisson.AmotherwhohasnotthoughtaboutthewordsforyearscanteachherdaughterthepoemthatbeginsTwinkletwinklelittlestarorrememberthestoryofCinderellaorGoldilocksandtheThreeBears.Oneexplanationisthelawofoverlearningwhichcanbestatedasfollows:Oncewehavelearnedsomethingadditional额外的learningtrialsincreasethelengthoftimewewillrememberit.Inchildhoodweusuallycontinuetopracticesuchskillsasswimmingbicycleridingandplayingbaseballlongafterwehavelearnedthem.WecontinuetolistentoandremindourselvesofwordssuchasTwinkletwinklelittlestarandchildhoodtalessuchasCinderellaandGoldilocks.Wenotonlylearnbutoverlearn.Themultiplicationtables乘法口诀表areanexception例外tothegeneralrulethatweforgetratherquicklythethingsthatwelearninschoolbecausetheyareanotherofthethingsweoverlearninchildhood.Thelawofoverlearningexplainswhycramming突击学习foranexaminationthoughitmayresultinapassinggradeisnotasatisfactorywaytolearnacollegecourse.Bycrammingastudentmaylearnthesubjectwellenoughtogetbyontheexaminationbutheislikelysoontoforgetalmosteverythinghelearned.Alittleoverlearningontheotherhandisreallynecessaryforone'sfuturedevelopment.1WhatisthemainideaofParagraph1?A.Peoplerememberwellwhattheylearnedinchildhood.B.Childrenhaveabettermemorythangrown﹣ups.C.Poemreadingisagoodwaytolearnwords.D.Storiesforchildrenareeasytoremember.2Theauthorexplainsthelawofoverlearningby.A.presentingresearchfindingsB.settingdowngeneralrulesC.makingacomparisonD.usingexamples3Accordingtotheauthorbeingabletousemultiplicationtablesis.A.aresultofoverlearningB.aspecialcaseofcrammingC.askilltodealwithmathproblemsD.abasicsteptowardsadvancedstudies4Whatistheauthor'sopiniononcramming?A.Itleadstofailureincollegeexams.B.It'shelpfulonlyinalimitedway.C.It'spossibletoresultinpoormemory.D.Itincreasesstudents'learninginterest.
8分Aswegrowoldwerealizethatwehavesolittletimetoreadandtherearesomanygreatbooksthatwe'veyettogetaroundto.Yetre﹣readersareeverywherearoundus.Forcertainfansre﹣readingTheLordoftheRingsisaconventionalpracticeannually.OnefriendtoldmethatJaneAusten'sEmmacanstillsurprisehimdespitehishavingreaditover50times. Newsuddenclearunderstandingscanbegainedfromtheprocessofre﹣reading.JournalistRebeccaMeadalong﹣timeEnglishwomaninNewYorkfirstcameacrossGeorgeEliot'sMiddlemarchat17.Sincethenshehasreaditagaineveryfiveyears.Witheachre﹣readingithasopenedupfurther;ineachchapterofherlifeithasresonated引起共鸣differently.Meadevidencedthelargenumberofwaysinwhichreallygoodbooksnotonlystandthetestofrepeatreadsbutalsoofferfreshgiftseachtimewecracktheirspines.Thesekindsofbooksgrowwithus. Scientistshavealsorecognizedthementalhealthbenefitsofre﹣reading.ResearchconductedwithreadersintheUSfoundthatonourfirstreadingweareconcernedwiththewhatandthewhy.Secondtimeroundwe'reabletobetterappreciatetheemotionsthattheplotcontinuestoexpress.AsresearcherCristelRusselloftheAmericanUniversityexplainedreturningtoabookbringsneworrenewedappreciationofboththegreatbookanditsreaders. It'struethatweoftenfindformerselvesonthepagesofoldbooksifwe'refondofmakingnotesonthepages.Thesetextscancarryusbacktoatimeandplaceandremindusofthekindofpersonthatwewerethen.We'rechangednotonlybylivedexperiencebutalsobyreadexperience﹣bythebooksthatwe'vediscoveredsincelastreadingtheoneinourhand. Moresothanthemoviedirectororthemusicianthewritercallsuponourimaginationsusingwordstoleadustopicturethisdeclarationofloveorthatunfaithfulnessinlife.Abookisajointprojectbetweenwritersandreadersandwemustpoursomuchofourselvesintoreadingthatourownlifestorycanbecomeconnectedwiththestoryinthebook. Perhapswhat'sreallystrangeisthatwedon'tre﹣readmoreoften.Afterallwewatchourfavouritefilmsagainandwewouldn'tthinkoflisteningtoanalbumonlyonce.Wetreasuremessyoldpaintingsasobjectsyetofallartformsliteraturealoneisalargelyone﹣timedelight.AbookofcoursetakesupmoretimebutasMeadconfirmstherewardsmakeitadequatelyworthwhile. 1ThetwobooksarementionedinParagraph1mainlyto. A.attracttheattentionofreaders B.introducethetopicofthepassage C.providesomebackgroundinformation D.showthesimilaritybetweenre﹣readers 2TheunderlinedexpressioncracktheirspinesinParagraph2refersto. A.recitethem B.re﹣readthem C.recallthem D.retellthem 3Itcanbelearnedfromthepassagethat. A.readingbenefitspeoplebothmentallyandphysically B.readersmainlyfocusonfeelingsontheirfirstreading C.weknowourselvesbetterthroughre﹣readingexperience D.writersinspirethesameimaginationsasfilmdirectorsdo 4Thepurposeofthepassageisto. A.callondifferentunderstandingsofoldbooks B.focusonthementalhealthbenefitsofreading C.bringawarenesstothesignificanceofre﹣reading D.introducetheeffectivewaysofre﹣readingoldbooks
如图1在矩形ABCD中点E在CD上∠AEB＝90°点P从点A出发沿A→E→B的路径匀速运动到点B停止作PQ⊥CD于点Q设点P运动的路程为xPQ长为y若y与x之间的函数关系图象如图2所示当x＝6时PQ的值是
如图已知在▱ABCD中AE⊥BC于点E以点B为中心取旋转角等于∠ABC把△BAE顺时针旋转得到△BA′E′连接DA′若∠ADC＝60°AD＝5DC＝4则DA′的大小为．
先化简再求值其中x从﹣223五个数中适当选取一个．
6分 BLOODDRIVE&MARROW骨髓REGISTRATION Thesepatientsdeserveachanceatanormalhappyfutureandtheyrelyonthekindnessofstrangerstomakethathappen. ﹣DaisyIsabelle'sMother IsabelleisthedaughterofDaisyandSamanMirzaei.InJanuary2008Isabellewasdiagnosed诊断withageneticblooddisorderbetathalassemia.Isabelle'sbodyisunabletoproducehealthyredbloodcells.AsaresultIsabellehasbeenreceivingbloodtransfusions输血every4﹣6weekssinceshewas11monthsold.Alifetimeofregulartransfusionscanleadtoseriousmedicalproblems.Heronlychanceatanormalhealthylifeistohaveamarrowtransplant.IsabelleisanonlychildsodoctorshavestartedasearchforanunrelatedmarrowdonorthroughtheBeTheMatchRegistry.TheMirzaeifamilyasksthatyouconsiderhelpingpatientslikeIsabellebyregisteringtobeamarrowdonorandgivethegiftoflifethegiftofblood. HeldatWileyHall WednesdayMarch262014 BehindHeathmanDormitory/ButterfieldRd. 12:00PM﹣6:00PM Don'tforgettobringyourdriver'slicenseoranotherformofidentificationwhenyoudonate. Visitwww.ribc.orgtomakeanappointmentSponsorCode3390. FREEKingstonPizza!！! www.ribc.org800﹣283﹣8385 TheRhodeIslandBloodCenterdistributesbloodproductstohospitalsinRhodeIslandandSouthernNewEngland. 1Wecanlearnfromthepassagethat. A.theblooddriveisorganizedbyIsabelle'smother B.Isabellereceivesbloodtransfusionsregularly C.Isabellehasbeenillfor11months D.doctorswillsponsorIsabelle'sfamily 2ThosewhowanttohelppatientslikeIsabellecan. A.cometoWileyHalleveryWednesday B.visitwww.ribc.orgforanappointment C.contacttheirparentsat8002838385 D.callathospitalsinRhodeIsland 3Tobeamarrowdonoryoumust. A.bearelativeofthepatient B.carryadriver'slicense C.beatleast18yearsold D.applytoMichael'sFund
如图直线AB与CD相交于点OEO⊥CD于点OOF平分∠AOC若∠BOE∠AOC＝45则∠EOF为度．
下列计算正确的是
10分 TheiPonGeneration Todayitiscommontoseepeoplewhowalkaboutwithcoloredwireshangingfromtheirearswherevertheygo.Theymoveaboutintheirpersonalbubblessometimesunawareofwhat'shappeningaroundthem.1Outsidelifeisshutout.Soareyouoneofthem? Forme;walkingaroundinmyownpersonalbubbleisperfect.2What'sevenbetterwearingearphonesseemstogiveasignaltopeoplewhichsays;I'mnotavailableforchattingatthemoment. Supposeyou'reatworkandabouttomakeanincrediblebreakthrough?butacolleaguesuddenlyturnsup.Atthisprecisemomenttheslightestdisturbancewouldbreakyourconcentration.3OnceagainthosewireshangingfromyourearswouldbesuretogivethatGoaway!signal. 4It'sprobablypartofthegrowingupstagewhentheyjustwanttoignoretheirwholefamily.Whiletheirmothersgivethemlecturesaboutwhytheyshoulddotheir'Yes.Mum.''Problemsolved. Prettysoonnotonlywillwehaveprettycoloredwireshangingfromourears﹣butalsoourbrainswillbedirectlypluggedintosomenewhigh﹣techinstrument.We'llbeinavirtual虚拟的worldcommunicatingwitheveryoneelseorchoosingnottoaswelike.Inthisworldwewillallbepermanentlypluggedin.5Andtheyarechangingoursocialhabitsalongtheway. Intheendthereisathinlinebetweenusingtechnologyasatoolformakinglifebetterandbeingaslavetoit!It'ssostrange﹣suddenlyIdon'tfeellikewearingmyearphonesanymore. A.Ourinstrumentsarechangingquickly. B.Ialsohavewireshangingfrommyears. C.Inthehomesituationteenagerslovethesewires. D.Idon'thavetodealwiththenoisefromtheenvironment. E.AfterallIamlisteningtomyfavouritemusicandwouldrathernotbedisturbed. F.Listeningtomusicthroughearphonesistheperfectwaytoignoresuchinterruptions. G.Theywalkaroundintheirownspaceswiththeirpersonaldigitalnoisereductionsystems.
8分 YearofGiving YesterdayIstartedtheYearofGivingmyfirstdayofayear﹣longjourneyintoexploringtheactofgivingandthemeaningofcharity.IchoseDecember15asthestartingdatewhichmarkedthreeyearssincemymotherdiedfromheartdisease.ShewasoneofthemostgenerouspeoplethatIhaveeverknown.Shealwaysthoughtofothersfirstandcertainlyservesasaninspirationtome. Ihadaratherbusydayyesterdayironic具有讽刺意义的forsomeonewhoisunemployedrightnow.InthemorningIwenttothegymandunsuccessfullygotthephonecallfromtheunemploymentofficeforsomejobsearching.BeforeIknewititwasnoon.Igrabbedaquicklunchandrusheddowntoameeting.OnmywaytoConnecticutIwonderedifIwouldseesomeonethatIwouldfeelforcedtogivemyfirst10USDto.Iwasrunninglateanddecidedtodoitafterwards. AfterthemeetingIhadabouthalfanhourtofindthefirstpersonofmyYearofGiving!IdecidedtocheckoutDuPontCircle.IhadmetaguytherenamedJerryonceandthoughthewouldwillinglyacceptmy$10.Hewasn'ttherebutIdidseeamansittingbyhimselfwholookedreallylonelysoIapproachedhim.NowIhadtofigureoutwhatIwasgoingtosayIthinkIsaidsomethinglikeHicanIsitdownhere?IwouldliketoknowifIcouldgiveyou10?USDHeaskedmetorepeatwhatIhadsaidIdidthenhelookedatmefunnygotupandleft. IthenstartedwalkingsouthwhereIspottedamanstandingbythebusstoponConnecticutAve.Heappearedtobeinhis60s.Idon'tknowwhatdrewmetohimbutIthoughtIwouldmakemysecondattempt.Iwasabitnervousandaskedhimwhichbuscamebythatstop.ThenIexplainedthatIwasstartingayear﹣longprojecttogive10USDtosomeoneeverydayandthatIwantedtogivemy10USDfortodaytohim.ThegentlemanIlaterfoundoutthathisnamewasEdrespondedwithouthesitationthathecouldnotacceptmyofferandthatthereweremanypeoplemoredeservingthemoneythanhim.ThiswasexactlyoneofthethingsthatIhopedwouldhappen.Peoplewouldthinkofothersbeforethemselves. 1TheauthorsetthestartingdateonDecember15to. A.helpthecharity B.rememberhismother C.makeanexplosion D.fulfillawishofhismum 2Intheauthor'sfirstattempttogiveawaythemoney. A.hewasconsideredridiculous B.hehesitatedforalongtime C.hewasforcedtodonatethemoney D.hehadnotimetotakeaction 3Intheauthor'ssecondattemptthegentlemanrefusedhisofferbecause. A.hedidn'tneedother'shelp B.hethoughtmoreforothers C.hedidn'tcareaboutmoney D.hewantedtogetmoremoney 4Wecaninferthattheauthorwasinspiredby. A.truefriendship B.hisownkindness C.generousdonations D.human'sgoodnature
30分Inthediningroomofmygrandfather'shousestoodamassivegrandfatherclock.Mealsinthatdiningroomwerea1forfourgenerationstobecomeone.Thetablewasalways2withfoodfromwonderfulfamilyrecipes食谱allcontaining3asthemainingredient成分.Andalwaysthatgrandfatherclockstoodlikeatrustedoldfamily4sharingourhappiness.AsIwasachildtheoldclock5me.Iwatchedandlistenedtoitduringmeals.I6howatdifferenttimesofthedaythatclockwouldstrikewithawonderful7.Yearafteryeartheclockstruckapartofmy8apartofmyheart.Evenmorewonderfultomewaswhatmygrandfatherdideachday.He9woundthatclockwithaspecialandmagickeywhich10theclocktickingandstriking.Heneverletthatclockwinddownand11.Whenwegrandkidsgotalittleolderheshowedushowto12theclock.SeveraldaysaftermygrandfatherdiedIenteredthediningroomwithtearsflowing13.Theclockstooddesertedly14seemingsmallerandnotasmagnificentasbefore.Icouldn't15tolookatit.Yearslatermygrandmothergavemetheclockandthekey.Theoldhousewasquiet.Iopenedtheclockdoorwithmyshakinghand.Then16reverently虔诚地Ienteredthekeyandwoundtheclock.Itsprangto17.Tick﹣tocktick﹣tocklifeandchimeswere18intothediningroomintohouseandintomy19.Inthemovementofthehandsoftheclockmygrandfather20again.1A.party B.time C.place D.situation2A.filled B.cleared C.spread D.left3A.wine B.surprise C.love D.fish4A.friend B.guard C.solider D.lawyer5A.disappointed B.appealed C.surprised D.comforted6A.questioned B.remembered C.doubted D.wondered7A.sound B.noise C.voice D.ring8A.studies B.opinions C.memories D.brains9A.strangely B.usually C.carefully D.eagerly10A.got B.kept C.prevented D.set11A.break B.fall C.stop D.move12A.wind B.repair C.read D.clean13A.unexpectedly B.gently Cdifficultly D.freely14A.dumb B.alone C.quiet D.noisy15A.help B.bear C.hope D.insist16A.slowly B.quickly C.unwillingly D.naturally17A.feet B.hands C.sense D.life18A.breathed B.sung C.blown D.sent19A.mind B.eyes C.heart D.hands20A.survived B.lived C.showed D.left
在一个不透明的口袋里有红黄蓝三种颜色的小球这些球除颜色外都相同其中有5个红球4个蓝球．若随机摸出一个蓝球的概率为则随机摸出一个黄球的概率为
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