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若关于x的一元二次方程(k-1)x2+4x+1=0有实数根,则k的取值范围是( )
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若关于x的一元二次方程x2﹣2x﹣k+1=0有两个相等的实数根则k的值是
﹣1
0
1
2
关于x的一元二次方程k﹣1x2﹣2x+1=0有两个不相等的实数根则实数k的取值范围是.
若关于x的一元二次方程x2﹣x+k=0有两个相等的实数根那么实数k的值是.
若关于x的一元二次方程kx2﹣2x+1=0有实数根则k的取值范围是
若关于x的一元二次方程kx2+2k+1x+k﹣1=0有两个实数根则k的取值范围是.
若关于x的一元二次方程x2+2k﹣1x+k2﹣1=0有实数根则k的取值范围是
k≥1
k>1
k<1
k≤1
若关于x的一元二次方程k﹣1x2+2x﹣2=0有两个不相等的实数根则k的取值范围是.
已知关于x的一元二次方程x2-6x+k=0有实数根.1求k的取值范围4分2如果k取符合条件的最大整数
若关于x的一元二次方程1﹣kx2+2kx﹣k+1=0有实数根则实数k的取值范围是.
若关于x的一元二次方程k﹣1x2+2x﹣2=0有两个不相等的实数根则k的取值范围是
.若关于x的一元二次方程k﹣1x2+2x﹣2=0有两个不相等的实数根那么k的取值范围是
已知一元二次方程x2﹣4x+k=0有两个实数根.1求k的取值范围2如果k是符合条件的最大整数且一元二
已知关于x的一元二次方程kx2﹣2x+1=0.1若此一元二次方程有实数根求k的取值范围.2选一个你认
若关于x的一元二次方程kx2+2x﹣1=0有实数根则k的取值范围是
k>﹣1
k≥﹣1
k>﹣1且k≠0
k≥﹣1且k≠0
若关于x的一元二次方程k﹣1x2+4x+1=0有实数根则k的取值范围是.
若关于x的一元二次方程kx2+2x﹣1=0有实数根则k的取值范围是
k>﹣1
k≥﹣1
k>﹣1且k≠0
k≥﹣1且k≠0
若关于x的一元二次方程x2-2x+k=0有两个不相等的实数根则k的取值范围是
k<1
k≤1
k>-1
k>1
若关于x的一元二次方程x2﹣2x﹣k+1=0有两个相等的实数根则k的值是
﹣1
0
1
2
若关于x的一元二次方程kx2+2k+1x+k﹣1=0有两个实数根则k的取值范围是.
若关于x的一元二次方程kx2﹣2x﹣1=0有实数根则k的取值范围是
k≥-1且k≠0
k≥-1
k≤1
k≤1且k≠0
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MostpeopleknowthatMarieCuriewasthefirstwomantowintheNobelPrizeandthefirstpersontowinittwice.HoweverfewpeopleknowthatshewasalsothemotherofaNobelPrizewinner. BorninSeptember1897IreneCuriewasthefirstoftheCuries'twodaughters.AlongwithnineotherchildrenwhoseparentswerealsofamousscholarsIrenestudiedintheirownschoolandhermotherwasoneoftheteachers.ShefinishedherhighschooleducationattheCollegeofSévignéinParis. IreneenteredtheUniversityofParisin1914toprepareforadegreeinmathematicsandphysics.WhenWorldWarIbeganIrenewenttohelphermotherwhowasusingX﹣rayfacilities设备tohelpsavethelivesofwoundedsoldiers.IrenecontinuedtheworkbydevelopingX﹣rayfacilitiesinmilitaryhospitalsinFranceandBelgium.HerserviceswererecognisedintheformofaMilitary'sMedalbytheFrenchgovernment. In1918Irenebecamehermother'sassistantattheCurieInstitute.InDecember1924FredericJoliotjoinedtheInstituteandIrenetaughthimthetechniquesrequiredforhiswork.Theysoonfellinloveandweremarriedin1926.TheirdaughterHelenewasbornin1927andtheirsonPierrefiveyearslater. LikehermotherIrenecombinedfamilyandcareer.LikehermotherIrenewasawardedaNobelPrizealongwithherhusbandin1935.Unfortunatelyalsolikehermothershedevelopedleukemiabecauseofherworkwithradioactivity辐射能.IreneJoliot﹣CuriediedfromleukemiaonMarch171956. 1WhywasIreneCurieawardedaMilitaryMedal? A.Becauseshereceivedadegreeinmathematics. B.Becauseshecontributedtosavingthewounded. C.BecauseshewontheNobelPrizewithFrederic. D.Becausesheworkedasahelpertohermother. 2WheredidIreneCuriemeetherhusbandFredericJoliot? A.AttheCurieInstitute. B.AttheUniversityofParis. C.Atamilitaryhospital. D.AttheCollegeofSévigné. 3WhenwasthesecondchildofIreneCurieandFredericJoliotborn? A.In1932. B.In1927. C.In1897. D.In1926. 4InwhichofthefollowingaspectswasIreneCuriedifferentfromhermother? A.Ireneworkedwithradioactivity. B.Irenecombinedfamilyandcareer. C.IrenewontheNobelPrizeonce. D.Irenediedfromleukemia.
Grown﹣upsareoftensurprisedbyhowwelltheyremembersomethingtheylearnedaschildrenbuthaveneverpracticedeversince.Amanwhohasnothadachancetogoswimmingforyearscanstillswimaswellaseverwhenhegetsbackinthewater.Hecangetonabicycleaftermanyyearsandstillrideaway.Hecanplaycatchandhitaballaswellashisson.AmotherwhohasnotthoughtaboutthewordsforyearscanteachherdaughterthepoemthatbeginsTwinkletwinklelittlestarorrememberthestoryofCinderellaorGoldilocksandtheThreeBears. OneexplanationisthelawofoverlearningwhichcanbestatedasfollowsOncewehavelearnedsomethingadditional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.presentingresearchfindings B.settingdowngeneralrules C.makingacomparison D.usingexamples 3Accordingtotheauthorbeingabletousemultiplicationtablesis. A.aresultofoverlearning B.aspecialcaseofcramming C.askilltodealwithmathproblems D.abasicsteptowardsadvancedstudies 4Whatistheauthor'sopiniononcramming? A.Itleadstofailureincollegeexams. B.It'shelpfulonlyinalimitedway. C.It'spossibletoresultinpoormemory. D.Itincreasesstudents'learninginterest.
Somepeoplewilldojustaboutanythingtosavemoney.AndIamoneofthem.Takemyfamily'slastvacation.Itwasmysix﹣year﹣oldson'swinterbreakfromschoolandwewereheadinghomefromFortLauderdaleafteraweeklongtrip.TheflightwasoverbookedandDeltatheairlineofferedus400dollarsperpersonincreditstogiveupourseatsandleavethenextday.IhadmeetingsinNewYorksoIhadtogetback.Butthatdidn'tmeanmyhusbandandmysoncouldn'tstay.Itookmynine﹣month﹣oldandtookoffforhome. Thenextdaymyhusbandandsonwereofferedmorecreditstotakeanevenlaterflight.YesIencouraged﹣okayordered﹣themtowaititoutattheairporttoearnmoreDeltaDollars.Ourtotaltake1600.Notbadhuh? NowsomepeoplemaythinkI'mabadmotherandnotsuchagreatwifeeither.ButasabigtimebargainhunterIknowthevalueofadollar.Andthesedaysagooddealissomethingfewofuscanaffordtopassup. I'vemadealivinglookingforthebestdealsandexposing揭露theworsttricks.IhavebeentheconsumerreporterofNBC'sTodayshowforoveradecade.IhavewrittenacoupleofbooksincludingonetitledTricksoftheTradeAConsumerSurvivalGuide.AndIreallydowhatIbelievein. Itellyouthisbecausethereisnoshameingettingyourmoney'sworth.I'malsotightfistedwhenitcomestoshoesclothesformychildrenandexpensiverestaurants.ButIwouldn'thesitatetospendonagoodhaircut.Itkeepsitsshapelongerandit'sthefirstthingpeoplenotice.AndIwillalsospendonaclassicpieceoffurniture.Qualitylasts. 1WhydidDeltagivetheauthor'sfamilycredits? A.Theytookalaterflight. B.Theyhadearlybookings. C.Theirflighthadbeendelayed. D.Theirflighthadbeencancelled. 2Whatcanwelearnabouttheauthor? A.Sherarelymissesagooddeal. B.Sheseldommakesacompromise. C.Sheisverystrictwithherchildren. D.Sheisinterestedincheapproducts. 3Whatdoestheauthordo? A.She'sateacher. B.She'sahousewife. C.She'samediaperson. D.She'sabusinesswoman. 4Whatdoestheauthorwanttotellus? A.Howtoexposebadtricks. B.Howtoreserveairlineseats. C.Howtospendmoneywisely. D.Howtomakeabusinessdeal.
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Intoday'sworldofsmartphonesandlaptopsmostpeoplehaveatleastonetime﹣tellingthingwiththem.Sincethesedigitalproductsaresocommonistimerunningoutforthe500﹣year﹣oldwatch?Accordingtosomeconsumerstheanswerisyes.NewJerseyteenagerCharlieWollmansaysawatchisanextrapieceofequipmentwithnonecessaryfunction.Manyyoungadultsthinksoandusetheirsmartphonestotelltime.Itissaidthatfeweryoungpeoplewearwatchestodaythantenyearsago.Asaresultsomepeoplesaythatthewatchindustryisatacrossroads. Howeverwatchmakersoptimisticallysaythatwatchesredeempopularitywhenconsumersreachtheir20sand30s.Bythentheyarewillingtospendmoneyonaqualitywatchthatdoesn'tjustkeepgoodtime.Fiftyyearsagowatchmakerstookprideintheirproducts'accuracy.Butinrecentyearsthewatchindustryhaschangeditselfintoanaccessory配饰business.Andtodaytheimageawatchconveyshasbecomemoreimportantthanthetimeittells. Complications﹣featuresthatgobeyondsimpletimekeeping﹣areanimportantpartofawatch'simage.Today'swatchesofferlotsoffeaturesthatmeetalmostanypersonality.ThesefeaturesincludecompassesUSBdriversandevenotherfunctionsthatmeasuretheeffectivenessofgolfswings! Creativityalsoplaysakeyroleindesigningtoday'swatches.ForexampleJapanesewatchmakerTokyoflashmakeswatchesthatdon'tevenlooklikewatches.Thecompany'spopularShinshokumodelusesdifferentcolorlightstotelltime.Itlooksmorelikeafashionablebraceletthanawatch. Whetherawatchconveysfashionsensecreativetalentoraloveofsportsconsumerswanttheirwatchestostandout.Nowadayseveryonehasthesamekindofgadget小玩意intheirbagssopeoplewanttomakeastatementwithwhat'sontheirwrists.Willthisinterestinwristfashionlast?Onlytimewilltell! 1Whatcanweknowfromthefirstparagraph? A.Asmostpeopleseewatchesareoutoffashion. B.Somepeoplefeelthatwatcheshavebeenofnouse. C.Thewatchindustrywillclosedownsoonerorlater. D.Therearesomanychoicesofwatchesforteenagerstoday. 2Accordingtothepassagewhatimagedoesawatchconveynowadays? A.Itsimplytellstime. B.Itappealstomanyteenagers. C.Ithasmanycomplexfunctions. D.Ithasanimpactoncreativityandimagination. 3JapanesewatchmakerTokyoflashismentionedinParagraph4to. A.showwhyShinshokuwatchesarepopular B.advertiseShinshokuwatchesmadebyTokyoflash C.tellthattoday'swatchesneedmoreimagination D.makeacomparisonbetweenwatchesandbracelets 4Whatmaybethebesttitleforthepassage? A.WatchesTellMoreThanTime B.JapaneseWatchesStandOut C.WatchIndustryIsinaBadSituation D.WatchesAreBecomingLessPopular
Aprecious受人疼爱的littlegirlinNewYorkwithburns烧伤over75percentofherbodyhasonlywishforChristmasthisyearenoughChristmascardstofillheraunt'scardtree. TwoyearsagoSafyreTerrylostherfatherandthreeyoungersiblings娣妹inafiresomeonelitintheupstairsstairwell楼道leadingtoherfamily'sapartment.Safyrewasfoundnexttoherfatherwhousedhisbodytoshieldherfromtheflames火焰.Inadditionto除了sufferingfromsevereburnsSafyrelostherrighthandandleftfoot.Sheunderwent经历morethan50surgeries外科手术tograft种植skinoverherburns. Sincehermotherhadsignedovercustodialrights监护权tothestateLizDolderSafyre'sauntpetitioned请愿thecourts法院tobecomeherguardian监护人.Safyrelosteverything﹣﹣herfatherhermotherhersisterherbrothersherhomeherfavoritetoyherfavoriteoutfit﹣everythingthatwasfamiliartoherDoldertoldTODAY.Sheevenlosttheonethingwealltakeforgranted﹣herreflection.Butshewakeseverymorningwithasmileonherface.Sheisthetruedefinition定义ofhopefaithandlove. DoldertoldBuzzfeedsheboughtatreetohangChristmascardsonthisyearandSafyreinstantly立刻gotexcitedShesaid‘Ican'twaittofillitup'andmyresponsewas‘Honeythat'sprobablynotgoingtohappen.Wemaybeget10cardsayearandthecardtreeholds100. AfterDoldersharedaphotoofSafyrenexttothetreewithherFacebookcommunityasupporterofthefamilyKevinClarkaskedforpermissiontosharethephotoalongwithanaddresswherepeoplecouldmailcardsandfulfill完成Safyre'sChristmaswish.Therequesttookoffonsocialmedia该请求在社交媒体上反响强烈.Manycardshavealreadystartedtocomein. 1Whatistheprobablemeaningoftheunderlinedwordshieldinthesecondparagraph? A.present. B.prevent预防. C.protect. D.recover恢复. 2WhichwordcanbestdescribeSafyreTerry? A.Enthusiastic热情. B.Optimistic乐观. C.Pessimistic悲观. D.Realistic现实. 3Whichofthefollowingcanbethebesttitle最佳标题ofthetext? A.ALittleGirlLostHerFamilyinaFire. B.ALittleGirlGotBurntinaFire. C.ALittleGirlGotAdoptedbyHerAunt. D.ALittleGirlWishedtoFillHerAunt'sCardTree. 4WhydidDolderpetitionthecourtstobecomeSafyre'sguardian? A.BecauseSafyrepreferredtolivewithLizDolder. B.BecauseSafyrewashomelessandhadtolivewithher. C.BecauseSafyre'smothertransferredcustodialrightstothestate. D.BecausethegovernmentrefusedtotakecareofSafyre.
假定你是高三学生李华从网上获悉一家国际青少年自愿者组织正在全球招募暑期志愿者. 请写一封电子邮件申请参加.主要内容如下 1.写信目的 2.自我介绍 3.希望获准. 注意 1.词数100左右 2.文章的开头和结尾已给出不计入总词数 3.可适当增加细节以使行文连贯. DearSirorMadam . Withallmybestregards. Yourssincerely LiHua.
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Shakespeare'sBirthplaceandExhibitionofShakespeare'sWorld Welcometotheworld﹣famoushousewhereWilliamShakespearewasborninl564andwherehegrewup.Theproperty房产remainedintheownershipofShakespeare'sfamilyuntil1806.TheHousehaswelcomedvisitorstravelingfromallovertheworldforover250years. OPENINGTIMES 20Mar.to19Oct. Mon.toSat.900a.m.to500p.m. Sun930a.m.to500p.m. 20Oct.to19Mar Mon.toSat900a.m.to400p.m. Sun.1000a.m.to400p.m. ◆EnterthroughtheVisitors'Centreandseethehighly﹣praisedexhibitionShakespeare'sWorldalivelyandfullintroductiontothelifeandworkofShakespeare. ◆StandintheroomswhereShakespearegrewup. ◆DiscoverexamplesoffurnitureandneedleworkfromShakespeare'speriod. ◆Enjoythetraditional传统的Englishgardenplantedwithtreesandflowermentionedinthepoet'sworks. ◆TheBirthplaceiswithineasywalkingdistanceofallthecarparksshownonthemapnearestisWindsorStreet3minutes'Walk ◆TheHousemaypresentdifficultiesbuttheVisitors'Centreitsexhibitionandthegardenareaccessibletowheelchairusers. ◆TheShakespeareCoffeeHouseoppositetheBirthplace ADMISSION Adult£4.90 Child£2.20 Family£12.00 2adults+upto3children 1Howmuchistheadmissionforafamilyoftwogrown﹣upsandtwochildren? A.£9.80. B.£12.00. C.£14.20. D.£16.40. 2WhereisthenearestparkingplacetoShakespeare'sBirthplace? A.Behindtheexhibitionhall. B.OppositetheVisitors'Centre. C.AtWindsorStreet. D.NeartheCoffeeHouse. 3Awheelchairusermayneedhelptoenter. A.theHouse B.thegarden C.theVisitors'Centre D.theexhibitionhall
ItisrecommendedthatoneoftheeffectivewaystomakeyourEnglishwritingskillsimprovedshouldbekeepingadiary.1comparewithotherformsofwritingittakes2littletimeaswellasbeingshorter.Itis3universerecognizedthatyouwillgettolearnhowtoexpressyourselfinEnglishifyouinsistonpractising.Apparentlyyoumaymeetwithagoodmany4difficultattimes.Thetroubleisthatyoucannotfindappropriatewordsandphrasestogiveexpressiontoyourmind.InadditiontherearelotsofidiomaticwaysofChineseappearinginyourdiary.5mypointofviewapieceofgoodadviceisthatthereshouldbenootherwaymoresuitablethan6keepanotebookandanEnglishdictionary7easyreach.Wheneversomething8beatyouput9downandthenconsultthedictionary.CertainlyyoucangethelpfromyourEnglishteacherifnecessary.I'msureitisofgreatusetokeepadiaryinEnglishforthe10improveofwritingabilities.
ThepassengersonthebuswatchedwithsympathyasSusanmadeherwaycarefullyupthesteps.Shepaidthedriverandthenusingherhandsto1theseatssettledinoneofthem.IthadbeenayearsinceSusanbecameblind.Astheresultofanaccidentshewassuddenlythrownintoaworldof2.Susan'shusbandMarkwatchedher3intohopelessnessandhewas4touseeverypossiblemeanstohelphiswife.FinallySusanfeltreadyto5toherjobbuthowwouldshegetthere?Sheusedtotakethebusbutshewasnowtoo6togetaroundthecitybyherself.Mark7toridethebuswithSusaneachmorningandevening8shecouldmanageitbyherself.FortwoweeksMark9Susantoandfromworkeachday.Hetaughtherhowtorelyonherother10specificallyherhearingtodeterminewhereshewasandhowtoadapttohernew11.AtlastSusandecidedthatshewasreadytotrythetrip12.Mondaymorningarrived.Beforesheleftshehuggedherhusband13hereyesfilledwithtearsofgratitude.Shesaidgood﹣byeandforthefirsttimetheywenttheir14ways.Eachdaywentperfectlyandawildexcitementtook15ofSusan.Shewasdoingit!OnFridaymorningSusantookthebustowork16.Asshewasgettingoffthebusthedriversaid'MissIsure17you.'CuriousSusanaskedthedriver18.'Youknoweverymorningforthe19weekafine﹣lookinggentlemaninamilitaryuniformhasbeenstandingacrossthecornerwatchingyouuntilyouenteryourofficebuildingsafely'thebusdriversaid.TearsofhappinesspoureddownSusan'scheeks.Shewassoluckyforhehadgivenheragiftmorepowerfulthan20.Thatisthegiftoflovethatcanbringlightwherethereisdarkness.1A.touch B.feel C.count D.grab2A.weakness B.sickness C.darkness D.sadness3A.run B.step C.jump D.sink4A.determined B.inspired C.honored D.pleased5A.adjust B.return C.contribute D.stick6A.sacred B.astonished C.frightened D.depressed7A.struggled B.attempted C.continued D.volunteered8A.until B.as C.when D.after9A.drove B.accompanied C.directed D.sent10A.feelings B.organs C.senses D.skills11A.position B.role C.status D.environment12A.onherown B.inperson C.toherbenefit D.onfoot13A.politely B.tightly C.briefly D.calmly14A.opposite B.fixed C.separate D.secure15A.charge B.place C.advantage D.hold16A.asusual B.asaconsequence C.asarule D.aswell17A.respect B.envy C.defend D.support18A.what B.how C.why D.who19A.next B.same C.first D.past20A.sight B.virtue C.courage D.wisdom
Inyourdailylifetherearemanyexampleswhereyourparentscontrolhundreds1thingsforyouwhenyouareakidsuchastheclothesyouwearthefoodyoueatwhereyougoandhowyougetthere.Itisagoodthing.Kidsneedthiskindof2protectandhelpbecausetheyarenotoldenoughtotakecareof3andmakedecisions4correct.Butwithkidsgrowing5oldthepartofbeingateenisdevelopingyourownidentity﹣onethat6separatefromyourparents'.Differentattitudestowardseventslikepartyingmayleadtoargumentsbecauseyourparentswillalwayswanttoprotectyouandkeepyousafenomatterhowoldyouare.As7resultyourparentsfeelithardtogetusedtothenewsituationwith8increaseanxiety.Whatkidsshouldkeepinmindis9inmostcasesyourparentscanrelatetowhatyou'regoingthroughbecausethey10beteensonce.
Manypeoplebelievethatyoulosetheability能力tolearnnewlanguagesasyougetolder.Languageexperts专家howeverwilltellyouthatyou'renevertoooldtolearnanewlanguage.Asyougetolderitcanbemoredifficulttolearnanewlanguagethough. Childrenandadultslearnnewlanguagesindifferentways.Forchildrenlanguageistheirlife.Theystudyforthousandsofhourseveryyearbecausetheyneedtolearnlanguagetobecomepartoftheircommunities.Adultsontheotherhandarealreadypartofalanguagecommunity.Learninganewlanguagemeansbecomingpartofanotherlanguagecommunityandadultsrarelygetthechancetopracticeasmuchasyoungchildrendo. Moreoverchildrenlearninganewlanguageareexpected预料tomakemistakes.Thisgivesthemfreedomwhenlearningtobedaringandconfident勇敢自信.Adultshoweveroftenfeelpressuredtobeperfect完美whenlearninganewlanguage.Thiscanintimidate使害怕manypeopleandmakeitevenhardertolearnanewlanguage. Researchhasshownthatchildrenwholearnanewlanguagewhentheyareveryyoungarenotlikelytohaveaforeignaccent口音whenspeakingadifferentlanguage.Somescientistsalsobelievethatitcantakeupto10000hoursofstudytomaster掌握anewlanguage.Thiscanbedifficultforadultstoachievebutyoungchildrencanaccumulate积累thosehoursoverseveralyearsastheygrowup. Whenyoungchildrenlearnanewlanguagetheycometoseemultiplelanguagesasanormalpartofsociety.Thismindset思维模式helpsthemembrace接纳learninganewlanguagewithoutfeelinglikethey'redoingsomethingunusualortoohard. Soifyouwanttolearnanewlanguagegoforit!It'snevertoolatetolearnanewlanguage.Ifyou'reolderitmaytakemoreworkbutitcanbedone.Ifyou'reayoungchildthoughnowisthetimetostepoutandlearnanewlanguage! 1Bylanguageistheirlifetheauthormeansthatchildren. A.can'tlivewithoutlanguage B.uselanguagefromtimetotime C.practiceanewlanguagealot D.aregoodatspeakinglanguage 2Whatmaymakeithardfortheoldpeopletolearnanewlanguage? A.Theyusuallyhavetoomanyinterests. B.Theyareafraidofbeinglaughedat. C.Theythinkmakingmistakesisnatural. D.Theyalwaysmakeallkindsofmistakes. 3Accordingtotheauthoranewlanguage. A.canneverbelearnedbytheoldpeople B.canbegraspedbytheoldpeopleeasily C.canbelearnedbyboththeoldandtheyoung D.isanimportantskillfortheoldpeople 4Theauthordevelopsthispassageby. A.makingseveralcomparisons比较 B.presenting提供researchfindings C.offeringsometypical典型examples D.tellingsomeinterestingstories
某雌雄异株植物的性别决定方式为XY型花色有白色黄色红色三种由仅位于X染色体上的等位基因Aa和位于常染色体上的等位基因Bb共同控制相关色素的合成过程如图所示.回答下列问题 1该植物花瓣中色素的合成过程说明基因与性状关系是. 2两红花植株杂交子代出现了的黄花植株则子代中红花植株与白花植株的比例为. 3请从第2题杂交实验的子代中选择实验材料设计一次杂交实验以确定某白花雌株的基因型写出相关的实验思路并预期实验结果和结论..
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. Thismorningourschoolheldafiredrill.Wewerelisteningtotheteacherattentivelyinthemathclasswhileweheardthefirealarmfromthespeakeronthewall.Theteachersstoppedteachingimmediatelyandinstructingustoexittheclassroominorder.Whenitgotintothepassagewaywefoundweweresurroundedbyheavysmokesomewhere.Itwaschokingandourtearsrandown.Webentdowncoveredourmouthswithhandkerchiefsandrandownstairsrapidintotheopenontheplaygroundjustaswehadtaughtbefore. Whenwecomebacktoourclassroomwegaveasummaryofthisfiredrill.Ithinkthefiredisastersoftenhappen.Soweshouldknowthetipstoescapefromafireforcaseofemergency.
Childrendonotthinkthewayadultsdo.Formostof1firstyearoflifeifsomethingisoutofsightitisoutofmind.2youcoverababy'sfavoritetoywithapieceofcloththebabythinksthetoyhasdisappearedandstops3lookforit.A4﹣year﹣oldmayobjectthathis/hersisterhas4muchfruitjuicewhenitisonlytheshapesoftheglassesthatdiffernottheamountofjuice.Yetchildrenaresmart5theirownway.Likegoodlittlescientistschildrenarealwaystestingtheirchild﹣sizedtheoriesabout6thingswork.Whenyourchildthrowsherspoononthefloorforthesixthtimeasyoutrytofeedherandyousay'That'senough!Iwillnotpickupyourspoonagain!'thechildwill7immediatetestyourclaim.Areyouserious?Areyou8annoy?Whatwillhappenifshethrowsthespoonagain?Sheisnotdoingthistodriveyoucrazyrathershe9learnthatherdesiresandyourscandifferandthatsometimesthose10differareimportantandsometimestheyarenot.
假设你是李华请你以自己网上购书所遇到的不愉快经历向中国某家英文报纸生活栏目写一封抱怨信.要点如下 1.所购书中有破损缺页现象 2.一些书籍价格比实体书店还要贵 注意 1.词数100左右 2.可适当增加细节以使行文连贯 3.开头语和结尾已给出不计入总词数. DearSirorMadame Iamamiddleschoolstudent.Iamwritingtoexpressmydissatisfactionanddisappointmentabouttheunpleasantexperience﹣﹣﹣﹣ Iwouldbegratefulifyoucouldtakemyopinionintoconsideration. Yourssincerely LiHua
Itisneverpossibletoleadalifewithoutanystress压力butitispossibletopreventstressaswellasreduceitseffectwhenitcan'tbeavoided.1.Tryphysicalactivity2.Runningwalkingplayingtennisandworkinginyourgardenarejustsomeoftheactivitiesyoumighttry.MaketimeforyourselfScheduletimeforbothworkandentertainment娱乐.Don'tforgetplaycanbejustasimportanttoyouroverallwell﹣beingaswork.3.Gowindow﹣shoppingorworkonahobby.Allowyourselfatleastahalfhoureachdaytodosomethingyouenjoy.Takecareofyourself4.Ifyoueasilygetangryandcan'tsleepwellenoughorifyou'renoteatingproperlyitwillbemorelikelythatyouwillfallintostressfulsituations.Ifstressrepeatedlykeepsyoufromsleepingyoushouldconsult咨询adoctor.5Stresscanresultfrom导致disorganizationandafeelingthat'there'ssomuchtodoandnotenoughtime'.Tryingtotakecareofeverythingatoncecanbetoomuchforyouandasaresultyoumaynotachieveanything.Insteadmakealistofeverythingyouhavetodoandthendoonethingatatimecheckingoffeachtaskasitiscompleted.Setouttodothemostimportanttaskfirst.A.Youshouldmakeeveryefforttoeatwellandgetenoughrest.B.Dowhateveryoulikeandwanttodo.C.Thefollowingaresuggestionsforwaystodealwithstress.D.Youneedabreakfromyourdailyroutinetojustrelaxandhavefun.E.Whenyouarenervousangryorupsettryreleasingthepressurethroughexerciseorphysicalactivity.F.Youcouldsmiletoyourselfinfrontofamirroreveryday.G.Makealistofthingstodo.
Myparentshavean安排meetingwiththeteacheronMonday.
SigningupforadigitalTVserviceprovidesyouwithaccesstoover200channelsfromallovertheglobe.Howevertelevisiontodayisdominatedbyadultlanguagemakingithardforconcernedfamiliestofindchannelssuitableforyoungeyes.ThereforemostmoviechannelsareautomaticallyremovedformthelistofTVchannelsforanentirefamily.Thefollowingaresomegoodonesbasedonpopularityonaglobalscale. DiscoveryChannel Discoveryanditsmanychannelscanbeconsideredasthefoundingfatherofinformativechannelsontelevision.WhatNationalGeographicdoesinascholastic学术的mannerDiscoverytriestodoinanentertainingmanner﹣educatingthemassesaboutanythingandeverything. FoxFamily FindingamoviechannelthatbroadcastspicturessuitableforteenagersandkidsalikeisverydifficultunlessyourserviceoperatoroffersyouFoxfamilymovies.Thischannelscreensmostmoviesbeforeitbroadcaststhemensuringthatnomovieshowsunacceptablematerialforyoungeyes. Nickelodeon AchannelverysimilartoCartoonNetworkitmostlyshowsUSprograms.Howevertheirshowsaresometimesabitmorematureforyoungerkidsandbettersuitedtokidsaged5andup. ABCFamily ABCstartedtheABCfamilychannelinanattempttointroducefamily﹣centeredshowsandserialstothepublicintheUSA.TheneedforthischannelwasfeltafterABCobservedthelackofproperfamilytypeUSchannels. Living IftravellingisafamilyhobbyandbetterlivingisthemottothenthereisnobetterchannelthanLiving.Kidscanseenever﹣seen﹣beforesightslearningaboutnewplaceswhileadultscanpracticetheircookingandlearnamazingthingsaboutmotorbikes. 1AccordingtothetextmostchannelsofferedbyadigitalTVservice. A.cankeeppeopleawayfromTVviolence B.arewelcomedbyfamilieswithsmallchildren C.areconcernedabouttheproperuseoflanguage D.areunsuitableforthewholefamilytowatchtogether 2WhichofthefollowingcanbestdescribeDiscoveryChannel? A.Relaxing. B.Touching. C.Commercial. D.Professional. 3Ifpeoplewanttoknowaboutwhatatraditionalfamilyisliketheycanchoose. A.FoxFamily B.Nickelodeon C.ABCFamily D.Living
假设你是李明你的新西兰笔友Tom将于八月来四川旅游特来信询问有关旅游景点的情况.请根据下表所提供的要点写一封回信并表示盼望他的到来. 注意1.词数100左右信的格式及开头已为你写好不计入总词数. 2.可根据内容要点适当增加细节以使行文连贯. 3.参考词汇省份﹣province都江堰水利工程﹣DujiangyanIrrigationProject九寨沟﹣Jiuzhaigou DearTom I'mgladtohearthatyou'recomingtoSichuaninAugust. Yourssincerely LiMing.
TheKing'sSchoolCanterburyisanindependentcoeducationalsecondaryschool.Therearecurrently791pupilsontheschoolroll名单.TheschoolhasalonganddistinguishedhistoryanditisalsooneoftheoldestcharitiesinthecountryprovidingscholarshipstopupilsandorganizingaCharityoftheTerm. Thecurriculum课程atKing'sisbasedonstrongacademicroots.Itemphasizesandreliesuponwhatisbestintraditionalindependentschooleducationscholarlyexcellencesupportedbyacaringandtutorialsystemandawide﹣rangingcurricularprogramme.Howeveritiscontinuallyadaptingandreactingtothechangingdemandsofmoderneducationnewsubjectsareaddednewteachingtechniquesareadoptedandthereisanincreasingawarenessoftheneedtoprovideprogrammesofstudythatmatchindividualneedsandskills. ThecurriculumisdividedintothreeunitstheLowerSchoolYear9anintroductoryyeartheMiddleSchoolYears10and11workingtoGCSEsandtheSixthFormYears12and13takingASandAlevels. FulldetailscanbefoundinShellGuideandHandbookMiddleSchoolAcademicGuide2009﹣2011MiddleSchoolAcademicGuide2010﹣2012SixthFormGuide2009﹣2011andSixthFormGuide2010﹣2012. Formalandstructurededucationalsupportforthosewhoneeditisavailableatalllevels.Thewell﹣stockedlibraryisopen7daysand6eveningsperweek.ICTfacilitiesincludingtheInternetareavailableforallandthewholeschoolstudieswithinthehousesaswellasclassroomsisextensivelynetworked. PupilsareofferedextensivecareeradvicethroughouttheirtimeatKing's.Almostallgotouniversityeitherimmediatelyorfollowingagapyear.ThemostpopularuniversitydestinationsareCambridgeBristolNottinghamDurhamLeedsOxfordEdinburghManchesterandUniversityCollegeLondon. DirectorofStudiesGeoffCocksworthgrc@kingsschool.co.uk ExaminationsOfficerElaineMcDowelleam@kingsschool.co.uk. IfyouneedformoreinformationClickhere. 1Thepassageismainlyabout. A.theachievementsofTheKing'sSchoolCanterbury B.thecurriculumatKing's C.thenewteachingtechniquesatKing's D.theintroductionofTheKing'sSchoolCanterbury 2WhichofthefollowingisNOTtrueaccordingtothepassage? A.TheKing'sSchoolCanterburyisafamoushighschoolinBritain. B.ThecurriculumatKing'sisbestintraditionalandmoderneducation. C.Allpupilsoftheschoolgotouniversityimmediatelyaftertheygraduate. D.Pupils'dormitoriesaswellasclassroomsareprovidedwithnetwork. 3ThefollowingcanbeinferredfromthepassageEXCEPTthat. A.theKing'sSchoolfocusesonpupils'individualdevelopment B.pupilsintheKing'sSchoolwhopassGCSEswillgotouniversity C.pupilsintheKing'sSchoolhaveaneasyaccesstotheschoollibrary D.pupilsintheKing'sSchoolreceivegoodeducation 4Thepassageisprobablytakenfroma. A.handbook B.web C.magazine D.newspaper
Morepeoplewouldbe吸引tocyclingifconditionswererightincities.
Theruralenvironmenthasa积极的effectonthechildren'shealth.
Thepoliceputthe责备fortheaccidentonthedriver.
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. Myhometownisasmallvillagesurroundingwithhills群山环绕.Smallasitisbutit'sverybeautiful. IcanstillrememberthedayswhenIspentwithmyfellowboysthereonmychildhood.Inspringweoftenflykitesmadebyourselvesonthetopofthehills.Thekiteswentveryhigh.Insummerthetreesweregreenandtheflowerwerebrightonthehills.Besidesthewildapplestastednicely.Inautumncorns玉米atfootofthehillswereripe成熟.Inwinterwhenitsnowedsomethingwascoveredwithsnow.Weplaywithsnowmainlymakingsnowmenandfightingbattles打仗withsnow. Todayinmyhometowntherearestillblueskyfreshairsweetwaterandkindpeople.Ilovemyhometown.
Psychologistshavediscoveredthateventhemostindependent﹣mindedofuswillconformtosocialpressurewhenwearewithagroupofpeople.Inoneclassicexperimentpeoplewereshownaverticallineandaskedtofindalineofidentical完全相同的lengthfromaselectionofthree. Youmightthinkthatthisisanabsurdlyeasytaskandwhenpeopleperformitbythemselvestheydoitverywell.Howeverpsychologistshavediscoveredthatweareveryeasilyswayed受影响bytheopinionsofotherpeoplewhenwedothistaskinagroup.Inonestudyagroupofthreepeoplewassetupwheretwoofthepeoplewereconfederates同伙oftheexperimenter.Whentheconfederatesdeliberatelygavewronganswerspeoplewereoftenswayedtogivethewrongansweralso.Infact75%ofpeoplegaveatleastonewronganswerwithsomepeopleconformingtopeerpressureoneveryoccasion. Butwhydopeopleconforminthisway?Inaneasytasklikethisitseemsthatpeopledonotwanttostepoutoflinewiththeprevailing普遍的opinionofthegroup.Onmoredifficulttaskspeoplealsoconformbecausetheyloseconfidenceintheirownabilitytomakedecisionsandprefertotrustthemajorityopinioninstead. Atypicalexampleofthiskindofconformityariseswhenwecomeacrosspeopleindistress.Wouldyouhelpawomanwhohasbeenattackedinthestreet?Itturnsoutthatyouaremuchmorelikelytogotoherassistanceifyouarealone.Whenotherpeoplearealsoaroundadiffusion分散ofresponsibilityoccurs.Peopleareparalysedintoinactionbecauseeveryoneassumesthatsomeoneelsewillgotothewoman'sassistance. 1InParagraph1theunderlinedwordconformprobablymeans. A.seekindependence B.disobeyorders C.seekpleasure D.followwhatothersdo 2WhatisthepurposeoftheexperimentdescribedinParagraph2? A.Toexplainwhypeoplewouldbeinfluencedbytheopinionsofothers. B.Toprovethatpeopleareeasilyinfluencedbytheopinionsofothers. C.Totraintheconfederatesoftheexperimenterasindependent﹣minded. D.Todescribehowpeoplewouldbeinfluencedbytheopinionsofothers. 3Accordingtotheauthorwhywouldn'tonehelpthewomanattackedinthestreet? A.Hethinkshehasnoresponsibilitiestogiveahand. B.Hethinkshehasnothingtodowithit. C.Heistooshytogivehishelpinghand. D.Hethinkssomeoneelsewillofferassistance. 4Whatmethoddoestheauthormainlyusetodevelopthetext? A.Givingexamples. B.Cause﹣effectanalysis. C.Comparativeanalysis. D.Processanalysis.
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