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若函数f(x)=2sin(ωx+φ),(ω>0,<φ<)的部分图象如图所示,则ω、φ的值分别是( )
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高一下学期数学《》真题及答案
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设函数fx=2sin若对任意x∈R.都有fx1≤fx≤fx2成立则|x1-x2|的最小值为_____
已知函数fx=2sinωx+φx∈R.其中ω>0-π<φ≤π.若fx的最小正周期为6π且当x=π/2
f(x)在区间[-2π,0]上是增函数
f(x)在区间[-3π,-π]上是增函数
f(x)在区间[3π,5π]上是减函数
f(x)在区间[4π,6π]上是减函数
.函数fx=sin22x+的导数是
f′(x)=2sin(2x+
)
f′(x)=4sin(2x+
)
f′(x)=sin(4x+
)
f′(x)=2sin(4x+
)
设函数y=2sin的图象关于点Px00成中心对称若x0∈则x0=________.
已知函数fx=2sin其中0
若将函数y=2sin2x+的图像向右平移个周期后所得图像对应的函数为
)y=2sin(2x+
) (
)y=2sin(2x+
) (
)y=2sin(2x–
) (
)y=2sin(2x–
)
若函数fx=2sinωxω>0在上单调递增则ω的最大值为________.
将函数y=2sin2x+的图象向右平移个周期后所得图象对应的函数为
y=2sin(2x+
)
y=2sin(2x+
)
y=2sin(2x﹣
)
y=2sin(2x﹣
)
将函数y=2sin2x+的图象向右平移个周期后所得图象对应的函数为
y=2sin(2x+
)
y=2sin(2x+
)
y=2sin(2x﹣
)
y=2sin(2x﹣
)
设函数fx=2sinxcos2+cosxsinφ-sinx0
已知函数fx=2sinωx+φω>0|φ|≤的部分图象如图所示将函数fx的图象向左平移个单位长度后所
g(x)=2sin(2x+
)
g(x)=2sin(2x+
)
g(x)=2sin2x
g(x)=2sin(2x﹣
)
设ω>0若函数fx=2sinωx在[-]上单调递增则ω的取值范围是_________.
已知函数fx=2sinωx+ω>0的图象关于直线x=对称则ω的最小值为________.
已知函数fx=2sinωx+φω>0.若则实数ω的最小值为.
已知ω>0a=2sinωx+cosωx2sinωx-cosωxb=sinωxcosωx.fx=a·b
若函数fx=2sinω>0的图象与x轴相邻两个交点间的距离为2则实数ω的值为.
已知函数fx=2sinωx+φx∈R.其中ω>0-π<φ≤π.若fx的最小正周期为6π且当x=时fx
f(x)在区间[-2π,0]上是增函数
f(x)在区间[-3π,-π]上是增函数
f(x)在区间[3π,5π]上是减函数
f(x)在区间[4π,6π]上是减函数
函数fx=Asin的图象如图所示若则函数fx的解析式为
f(x)= 2sin(3x一
)
f(x)= 2sin(3x+
)
f(x)= 2sin(2x+
)
f(x)= 2sin(2x一
)
若函数fx=2sin2x+φ的图象过点0则函数fx在上的单调减区间是________.
若函数y=Asinωx+φ+mA>0ω>0的最大值为4最小值为0最小正周期为直线x=是其图象的一条对
y=4sin(4x+
)
y=2sin(2x+
)+2
y=2sin(4x+
)+2
y=2sin(4x+
)+2
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Doyouknowtheoriginoflifeontheearth?It'swidelyacceptedthattheuniverse1beginwithaBigBang.Afterthattheearthwasstilljustacloudofdust.Ittookseveralbillionyears2thedustsettledintoasolidglobe.Theearthbecameso3violencethatitexplodedloudlywhichproducedcarbondioxidewatervaporandothergases.Withtheearth4cooldownwaterthenappeared5continuedpresencemadeitpossibleforlifetodevelop・Manymillionsofyearslatertheappearanceofthe6extremesmallplantsandtheoxygentheyproducedencouragedthedevelopmentofallsortsoffish.Nextamphibiansreptilesanddinosaursappearedoneafter7.Thesuddendisappearanceofdinosaurscausedtheriseofmammalswhichweredifferentfromalllife8forminthepast.Finallyhumansappearedandspreadaroundtheglobe.Theyarenottakinggoodcareoftheearthnow.Theyareproducingtoomuchcarbondioxidecausingtheearthtoohottolive9.Thereforeit'sourresponsibility10solvetheproblem.
为研究低温对某种热带植物叶绿体结构和代谢的影响科研人员选用长势一致的两个品种的幼苗分别在28℃和0℃条件下处理一段时间后测定幼苗叶片离体叶绿体的放氧量和叶绿体中MDA含量MDA是膜脂质分子过氧化产物其含量反映叶绿体膜的受损程度结果如图.请回答 1测定离体叶绿体放氧量实验中需要控制的无关变量有至少两项. 2离体叶绿体中放氧的场所是与氧气同时产生的物质将进入直接参与过程. 3根据实验结果分析叶绿体中MDA含量与膜受损程度呈填“正”或“负”相关.低温胁迫引起放氧量下降的原因是使叶绿体中色素含量. 4本研究表明两个品种中较耐低温的是.
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每处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:在错的词下面画一横线并在该词下面写出修改后的词. 注意:1.每处错误及其修改均仅限一词; 2.只允许修改10处多者从第11处起不计分. Idon'tknowwhattoexpressmysincereapologytoJimbecauseIlostthebookhelentittome.Iwasverygratefulwhenheputabookonmydesk.InordertogiveitbacktohersoonIspentthreedaysreadit.ThenextdayItookthebooktoJim'sclassroomtoreturnit.LuckilyIcouldn'tfinditanywherewhenIarrivedathisclassroom.TherewasobviousthatIcouldn'tgiveitbacktohimasIpromisedbefore.WhatshouldIdonow?Idecidetobuyanewonetohimandwritealetterofapologytohim.ThelessonformeisthatIshouldtakegoodcareofwhatbelongtome.
Doyouwantyourparentstobeproudofyou?Doyouwantthemtotrustyouthemostandbelievethattheycancountonyou?Doyouwanttobetherolemodelofgoodbehavior?Beingresponsibleistheanswer.Thenhowtoberesponsible? 1. Parentslovetoseecleanroomsorganizedclosetsandfloorsthatdon'thavepilesofthingsonthem.Doalittlebitofcleaningeachdaysoitisneveroverwhelming. Trysettingasideatimetodofiveminutesofcleaningsuchasaftersuppereachevening. Dresswellandtakegoodcareofyourbody. Findyourownpersonalstyle:cutepreppygirlyboyishseriousorwhimsical.Whateveryourstyleyourclothesshouldbeneat.Brushyourhairandteethstaycleanand2.Thiswillhelpyoulookandfeellikeanangelchild. Stayontopofyourresponsibilities. Doyourhomeworkassoonasyoucomehomewhichwillpleaseyourparentsandgiveyoutherestofthedayfree.Puteffortintoyourschoolworkandgetthebestgradesyoucan. Ifyouneedhelpaskforit!Thiswon'tbotheryourparents﹣3 Getplentyofsleepeatwellandspendtimeoutdoors.Thisshowsyourparentsthattheytaughtyouwell. Acknowledgeyourmistakes. Blamingotherpeopleisimmatureandparentscanusuallytellwhenyou'redoingit.InsteadgotoyourparentsandsayItwasmyfaultandIamsorry.Evenifthey'reunhappyaboutyourmistake4Butdon'tbackanswertheycansurelygetangryandwouldalwayspointoutyourmistakesthenexttime.Socontrolyourselfandstaycalmeveninthetimeofworstsituations. Keepyourpromises. Ifyouofferedtohelpdowhatyousaidyou'ddo.5andthey'lltrustyouwhenitcomestotheimportantthings.Ifyouaren'tsurewhetheryoucandosomethingdon'tpromisetodoit.InsteadsayIthinkIcanorI'lltry. A.Dowhattheyaskyoutodowithouttalkingback. B.Eatfruitsandvegetable. C.Yourparentswilllovetoseeyoubeingkind. D.Itshowsthemthatyoucare. E.Theywillbeproudofyouforowninguptoit. F.Parentsappreciatereliability. G.Stayneatandorganized
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Whatcouldhomesofthefuturebelike?Nooneknowsexactly.Butpreparationsaremadefortheworld'sfirstfreeform3D﹣printedhouse. ExpertswillbuildahousecalledCurveAppealwhichwillbe3D﹣printedoff﹣sitebeforebeingputtogetheron﹣sitetocreatetwooutsidewallsaroofandaninsidepart.Thesefourmainpartswillthenbejoinedtogether. Although3D﹣printedbuildingshavebeenmadebeforethishome﹣﹣﹣tobebuiltinChattanoogaTennesseelaterthisyear﹣﹣﹣willbethefirstofitskindasitwillcontainnoregularshapesorangles.ThehouseisthecreationofthedesigncompanyWATGbasedinLondonandCalifornia.ThedesignforCurveAppealdrawsinspirationfromtheCaseStudyHouseprogram. Thearchitects建筑师leadingtheprogramwerefamousfortryingtocreateopen﹣planspacethataddsnaturallight.InawrittenstatementaspokesmanforWATGsaidUsingmanyofthesamemoderndesignprinciplesCurveAppealisthenextdevelopingstep.It'simportantthatthebuildingsandtheenvironmentworktogetherharmoniously.ThechosensiteforCurveAppealisstepsawayfromtheTennesseeRiverinabeautifulwoodedsunlitarea. WATGwasawardedthefirstprizeintheFreeformHouseDesignChallengein2016andgivenprizemoneyof﹩8000tomakeitsplansareality.Thecompetitionwasdesignedforarchitectsdesignersengineersandartists. Competitorswerechallengedtodesigna600to800﹣﹩qftsingle﹣familyhomethatrethinkstraditionalaesthetics美学constructionbuildingsystemsandstructure. OverthelastyearWATG'sChicagoofficehasbeendevelopingtheirdesignwithBranchTechnology.Thisprojectwillbecompletedlaterthisyear.OncecompletedtheCurveAppealhomewillhaveopenandlight﹣filledinsidelivingspace. 1WhatcanweknowaboutCurveAppealfromthepassage? A.Itwillbedifferentfromanordinaryhouse. B.Itisthefirst3D﹣printedbuilding. C.Ithasvisiblewallsbutnoroof. D.Itwaseverbuiltintheworld. 2Whereisthefreeform3D﹣printedhouselocatedaccordingtoParagraph4? A.FarawayfromtheTennesseeRiver. B.InthewoodsneartheTennesseeRiver. C.NearWATG'sChicagooffice. D.Nexttosomemodernbuildings. 3WhatdoestheFreeformHouseDesignChallengedo? A.Itinspirespeopletodesignwhattheylike. B.Itonlyacceptsdesignsintraditionalways. C.Itofferscompetitorsinspirationwhennecessary. D.Ithelpsputcreativeideasintopractice. 4What'sthepassagemainlyabout? A.Thedesignofhomesinfuture. B.TheFreeformHouseDesignChallenge. C.Theworld'sfirstfreeform3D﹣printedhouse. D.Thedevelopmentof3D'sprintinginarchitecture.
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BooksforKids ●LesserSpottedAnimalsbyMartinBrown ImageSource:Scholastic Haveyoueverheardofanumbat食蚁兽ordzorilla非洲艾鼬?Noneitherhadwe.Thankstothisunusualpicturebookbothyouandyourlittleanimalloverscanlearnaboutawholegroupofnewcreatures.Beware:Youmaystartaskingforforeignpetsafterturningthesepages. AvailablefromAmazon$14.47 ●HowtoAvoidExtinctionbyPaulPaulAcampora ImageSource:Scholastic YourmiddleschoolerwillcertainlyenjoyjumpingintoanoldBuickalongwithLeohis16﹣year﹣oldcousinandalovelydognamedKermitonacross﹣countryroadtrip.Thisfuncomedicbookfilledwithfoodfamilyandfossilswillteachkidsaboutlifeinawaytheycangrasp.Ifyou'relookingforagoodreadforyourkidsthisisit. AvailablefromAmazon$8.95 ●What'sOutThere?byLynnWilson ImageSource:PenguinRandomHouse DoyouhaveaCuriousAstronaut﹣wannabeonyourhands?ThisclassicReadingRailroadbookwillteachyourchildwhatthesunismadeofwhatcausesthemoontochangeshapeandallabouttheplanetsinjustafewpages.Thisbookissimplyoutofthisworld. AvailablefromAmazon$3.99 ●ScienceStunts:Fun.FeatsofPhysicsbyJordanD.Brown ImageSource:PenguinRandomHouse Doesyourlittlescientistalsolovemagic?We'vefoundtheperfectbookforthem!They'llbeshockedbythewaythesesimplemagictrickscancometogetherwiththehelpofabitofscience.Thisisonebookthatwillhaveyousmilingfromeartoear. AvailablefromAmazon$12.59 1Peterwhoisananimalfanmaylikeread. A.LesserSpottedAnimals B.HowtoAvoidExtinction C.What'sOutThere? D.ScienceStunts:Fun.FeatsofPhysics 2WhatcanchildrenlearnfromthebookWhat'sOutThere? A.Funofscience. B.Extinctionofspecies. C.Knowledgeoftheuniverse. D.Experienceofaforeigntour. 3Whichbookmaymakechildrenburstintolaughter? A.What'sOutThere? B.LesserSpottedAnimals C.HowtoAvoidExtinction D.ScienceStunts:Fun.FeatsofPhysics
让我印象尺深刻的迢人们正在采取措施保护这座公园.impress现在进行时的被动语态
LONDON﹣BritainpreparesforavoteThursdaythatwilldecidewhetheritleavestheEuropeanUnion.Thedebatehascenteredonimmigrationandeconomicsecurity.Bothsideshaveloweredthetoneoftheirargumentsafterathree﹣daysuspension暂停ofcampaigningthatfollowedthemurderofananti﹣Brexitlawmakeranincidentthatpolls民意调查suggesthasshockedmanypreviouslyundecidedvoterswhonowsaytheywillvotetoremain. TheseareuncertaintimesinanationwhoseeconomyisthesecondlargestintheEuropeanUnion.Therisksarehuge.Therearewarningsthatleavingthe28﹣membergroupmaycausetheBritishpoundtolose15percentofitsvalueandbringtheresignation辞职ofDavidCameronthecountry'sprimeminister;hisstayornotdependsonwhetherBritainlistenstohimandvotestoremain. FormonthstheLeavecampaignhasbeenhittingthestreets.Itsargumentsarebasedlargelyon immigrationandthebeliefthatBritainhashandedcontrolofitsborders边界toaEuropeansuperstate:TheU.K.haslostcontrolovermigration.WehavetoacceptanyoneintothiscountryiftheyhaveanEUpassportnomatteriftheyhaveacriminalrecordornot.Wearenotallowedtosay'no'topeopleandthatisdamagingforthesecurityoftheU.K.butitisalsoputtingpressureonjobsandopportunitiesforyoungpeoplesaidTomHarwoodaBrexitcampaigner. ThemurderofJoCoxananti﹣Brexitpro﹣immigrantlawmakerbyafarrightextremist极端分子withahistoryofmentalproblemshadaseriouseffectonbothcampaignsandonvoters. PollssincetheJune16thmurdershowedtheLeavecamplosinggroundbutwithbothsidesstillverycloseonareferendum全民投票thatmanybelievecouldchangethecourseofEuropeanhistory. 1WhatdoestheunderlinedwordBrexitinparagraph3mean?. A.BreakthelawoftheEuropeanUnion. B.BreakawayfromtheEuropeanUnion. C.BuildtheexittotheEuropeanUnion. D.BantheimmigrationintoBritain. 2Whatisimpliedfromthepassage? A.TheimmigrationhascausedgreatconcerninBritain. B.BrexitwillbegoodforBritisheconomy. C.Bothcampshavebeencampaigninganddebatingonthestreetsformonths. D.ThemurderofJoCoxmademanyvotersdeterminedtovotefortheexit. 3Whichofthefollowingstatementistrue? A.BritainwillleavetheEuropeanUnionafterthevote. B.AnyonewithapassportcanchoosetostayandworkinBritain. C.WhetherCameronwillresigndependsontheresultofthereferendum. D.JoCoxwasmurderedbyaBrexitcampaignerinJune16m. 4What'stheattitudeofthereporttotheeventofBrexit? A.Positive B.Negative C.Indifferent漠不关心的 D.Concerned
Myfirstlessonwasatameeting.AswesettledaroundthetableIheardMegwhowas1arecentoperationtalkingtoJudiththemanagerofourprojectThankyousomuchfor2mydaughterstotheirdancelessonlastweek.Don'tmentionitJudithsaidItwasnothing. Knowinghow3JudithwaswithherworkkidsandagingparentsIfoundherdrivingMeg'schildrentodancelessonsunbelievably4. IwasabouttosaymoreaboutthiswhenDonnaanothercolleagueenteredtheroom5. Sheapologizedforbeinglatesayingshejusthadhostedalunchforherfriendswhowereoverseventy.ThatwassoniceofyouIsaid6howshedidn'tliketocookorclean.Ohshesaidwavingher7Itwasnothing.SomehowIcouldstilltellthe8inhervoice.Shegainedasenseofsatisfactionfromtheentertainment款待offeredtoherfriends. Seeingtheir9tohelpothersselflesslyIstartedthinkingabouttheconceptofnothingthispeacefulandgenerouswayofliving﹣﹣﹣wasitreallynothingorweretheysimplysayingthat?Isuddenly10thatonceIspentawholeafternoonafterworkhelpingafriend11aspeechshewasgoingtodeliver.I12hertorearrange重新安排theorderofthestoriesinthelecturetomakeitsoundmore13.Afterthefifthtryshefinally14it.Shehuggedmewith15sayingthankstome.Ismiledandsaiditwasnothing. SuddenlyIrealizedthathelpingsomeonewasreallysomethingtome.Ilearntthatgivingfromtheheartdoesn't16meanhardwork.The17isfindingsomethingwelovetodoandfindingsomeonewho18thatsomething.Ourgenerositycan19othersaswellasourselves.Onceyouhaveagood20ofitit'snothing.Andit'sreallysomething. 1A.recoveringfrom B.adaptingto C.goingthrough D.joiningin 2A.guiding B.fetching C.driving D.dragging 3A.common B.busy C.strange D.practical 4A.frightened B.sincere C.gifted D.generous 5A.hurriedly B.disappointedly C.angrily D.unexpectedly 6A.ignoring B.knowing C.forgetting D.predicting 7A.eyes B.feet C.leg D.hand 8A.pleasure B.sadness C.surprise D.regret 9A.progress B.adventure C.promise D.willingness 10A.referred B.refused C.remembered D.respected 11A.preparefor B.putup C.giveaway D.takeapart 12A.begged B.invited C.advised D.permitted 13A.unbelievable B.reasonable C.sensitive D.puzzling 14A.got B.meant C.caught D.made 15A.concern B.worry C.gratitude D.apology 16A.normally B.accidentally C.necessarily D.possibly 17A.treat B.trick C.belief D.plan 18A.needs B.admires C.loves D.defends 19A.defeat B.benefit C.win D.regard 20A.order B.balance C.impression D.command
杜氏肌营养不良症一般在3~5岁时开始发病20~30岁因呼吸衰竭而死亡受一对等位基因Dd控制.亨廷顿舞蹈症一般在中年发病受另一对等位基因Hh控制.如图是某家族两种遗传病系谱图其中Ⅰ3不携带致病基因.请回答 1利用DNA分子杂交技术鉴定Ⅰ3是否携带致病基因的原理是. 2该家族中杜氏肌营养不良症和亨廷顿舞蹈症的遗传方式分别是. 3Ⅰ4的基因型是.Ⅱ3产生同时含有两种致病基因卵细胞的概率是. 4Ⅲ3患杜氏肌营养不良症的概率是. 5若Ⅲ2与一正常男性婚配生一男孩该男孩正常的概率是.
利用科学记数法表示的数原来各是什么数-5.002×104=
Fishingisapopularactivityandeveryfishermanknowstherule:Keepthebigonesthrowthesmalleronesback.Theideabehinditissimple﹣thelargerfishareprobablyolder.Ifyoukeepthesmalleronestheywon'tbeabletoreproduceandthefishpopulationwillbeindanger. Butfishingoutthelargestfishfromapopulationhasanunwantedeffect:Overtimefeweradultfishgetreallybig.Ifonlythesmallerfishreproducethenfuturegenerationswillbecomesmaller.Thisisanexampleofevolution进化inaction. OnescientistDr.DavidConoverhasspentthelastdecadestudyingtheeffectsofthekeepthebigonesruleandiftheycanbechanged. TosetuphisexperimentConoverandhisteamcaughthundredsofsilversidefishanddividedthemintosixgroups.FortwogroupsConoverfollowedtheukeepthelargeonesruleandtookoutthebiggestfish.Fortwoothergroupsheremovedonlythesmallfish.Forthelasttwogroupsheremovedfishatrandom随意的. Afterfiveyearshemeasuredthefishineachgroup.Inthetwogroupswherethelargestfishwereregularlyremovedtheaveragefishsizewassmallerthantheaveragesizeintheothergroups.Herewastheevolutioninaction:Ifonlysmallfishsurvivetoreproducethenfuturegenerationsoffishwillalsotendtobesmall. ForthesecondfiveyearsofhisexperimentConoverchangedtherulesandtookfishrandomlyfromeachgroup.Attheendoftheexperimenthefoundthatthefishthatwereinthekeepthelargeonesgroupforthefirstfiveyearshadstartedtogetlargeragainalthoughhecalculateditwouldtakeatleast12yearsforthefishinthatgrouptoreturntotheiroriginalsize. Inotherwordsittakeslesstimetoshrinkthanitdoestorecover. 1What'sthetraditionalruleinfishing? A.Keepbothbigandsmallones. B.Keepbigonesandfreesmallones. C.Keepsmallonesandthrowbigonesback. D.Keeptheonesthatcanreproduce. 2DavidConoverdidexperimentonfishinginorderto. A.findpracticalrulesinfishing B.provethetraditionalfishingrulewasreasonable C.seekforgoodfishestoreproduce D.findgoodmethodinraisingsilversidefish 3WhatdidDavidConoversexperimentprove? A.Fishermanshouldfishatcertaintime. B.Fishermanshouldkeepbigonesandfreesmallone. C.Fishermanshouldkeepsmallonesandthrowbigonesback. D.Fishermanshouldkeepfishatrandom. 4Whatdoestheunderlinedwordshrinkmeaninthelastparagraph? A.Becomesmaller. B.Becomeill. C.Becomeweaker. D.Becomeless.
上周这家餐馆决定雇佣名厨以便能赢回顾客.sothat
ThefirstMondayinSeptemberisLaborDayintheUnitedStates.Thenationalholidaybeganmorethan100yearsago1honorlow﹣paidfactoryworkers. LaborDayalso2informalmarkstheendofsummer.ManystudentsreturntoschoolafterLaborDay.Thehotdaysofsummerturn3cool.ManyAmericanscelebratetheholiday4anoutdoorfamilybarbecue. ButLaborDaystartedwithastruggle.OnMay1st1889workersdemonstrated游行onthestreetsofParisFrance.InternationalLaborDaywasborn.Mostindustrialized5countryintheworld﹣excepttheUnited StatesandCanada﹣﹣celebrateLaborDayonthefirstofMay. ThefirstAmericanLaborDaycelebration6holdonSeptember5th1882inNewYorkCity.About10000workersmarchedthroughthestreetstoshowthe7strongoflabororganizations. FormanyyearsafterthatAmericanworkersusedthefirstMondayinSeptembertodemandbetterworkingconditionsandpay.Musicwasapartofmanyofthosemarchesandmanylaborsongstraditionallytellstoriesofconflictandhopesfor8betterlife.HereareWeShallNotBeMoved.WhichSideAreYouOn?BreadandRoses. EventhoughLaborDaydemonstrationsarenot9commonastheyareintheU.S.thesongremindsustocelebratetheeffortandlovethatmanypeoplegiveto10theywork.
假定你是晨光中学的李华来自英国CaterhamSchool的一批学生来你校与同学们开展了为期一周的文化交流活动.请你给校园英文报写一篇报道.内容包括: 1.活动时间:6月24日一6月30日; 2.活动内容:如画作展出音乐表演等; 3.活动意义. 注意: 1.词数80左右题目已为你写好; 2.可适当增加细节以使行文连贯. CulturalExchangebetweenCaterhamSchoolandChenguangHighSchool
Youmayfinditexcitingtogetapart﹣timejobduringthesummervacation.1Whenyougetaninvitationtoajobinterviewyouarehalfwaytowardsyourgoal﹣﹣ajoboffer.Hereareafewthingsyoushoulddoafterwards. Respondtotheinvitationtotheinterview.Thankthesenderfortheirtimeandfortheopportunitytoorganizetheinterviewconfirmingthatyouwillbeavailableatthedeterminedtime.2. 3Youneedtodosomeresearchonthecompanyandlearnasmuchaboutthecompanyaspossiblebeforetheinterview.Usethecompany'swebsiteandnewspaperarticlestogatherasmuchinformationaspossible.Youshouldalsobereadytotalkindepthaboutthecompanyandthepositionyouareapplyingfor. 4It'sbesttoprepareforawidevarietyofquestionsbythinkingaboutyourowncareergoalsandsoon.Wheredoyouseeyourselfinfiveyears?isacommonquestion.Workingdiligentlyforyouofcourse!Butunlessyouareactuallytryingtogetajobinyourchosencareerthisprobablyisn'tagoodanswer. Practicewithafriend.5Notonlywillthisgiveyouawaytostructureyourpreparationbutitwillalsohelpyougetcomfortablewithgivinganswers.Practicegivingconcisecompleteanswersandmaintainingeyecontactwiththeinterviewerswhileyougivethem. A.Askpeoplearoundyouforhelp. B.Ifyouhaveafriendwhoisalsopreparingforaninterviewconsiderpreparingtogether. C.Ifyouneedmoreinformationabouttheinterviewthisisthetimetoask. D.Butdoyouknowhowtoprepareforajobinterview? E.Thinkaboutquestionstheinterviewerislikelytoask. F.Whatarethechancesforprofessionalgrowthinthisjobopportunity. G.Doyourhomework.
利用科学记数法表示的数原来各是什么数2×105=
把下列数据用科学记数法表法出来地球上煤的储量估计为15万亿吨以上.
Ittakesabigbrain﹣ahumanbrain﹣todomath.Orsoyoumightthink.Butscientistshavefoundthatotheranimalssuchaschimpanzeesmonkeysandevenpigeonscandosomeadditionandsubtraction减法.Nownewresearchshowsthathoneybees﹣withbrainsthesizeofsesameseeds﹣candobasicmath. Researchersputhoneybeesthrough100trialstotrainthemtoaddandsubtract.TheyfirstputthebeesinaY﹣shapedmaze迷宫andpresentedthemwithacertainnumberofeitheryelloworblueshapes.Yellowshowedthebeesshouldsubtractwhilebluemeanttheyshouldadd. Thebeesthenenteredthedecisionroomwheretheywerepresentedwithacorrectanswerononesideandanincorrectanswerontheotherside.Iftheypickedtherightanswertheywererewardedwithasugarydrink.Ifnottheygotbitterwater.Theresearchersalsoputthebeesthroughanothertesttrialwithoutarewardorpunishmenttomakesurethereweren'tanysmellmarksinfluencingthebees'choices. Atfirstthebeespickedanswersrandomly随意地.Youseethattheabilityofthebeestodoitstartsataboutchancelevel50%showingusthebeesarejustchoosingatrandom.Overtimetheirabilitycomesuptoabout80%sotheyactuallystarttoperformquitewell. ScarlettHowardoneofthestudyauthorsandaresearcheratPaulSabatierUniversityinFrancesaysthebeeswereevenabletoaddandsubtractcorrectlywhenpresentedwithanumbertheyhadneverseenbefore.ThestudyisinthejournalScienceAdvances.Thingslikethisletusknowthere'realotofmysteriestobeexploredthereandtheirbrainsmightnotbeassimplisticasweoncethought.Howardadded. 1thetesttrialonhoneybeeswithoutarewardorpunishmentwasdone. A.tohelpimprovetheircalculatingskills B.toavoidsmells'influenceontheirchoices C.toshowtheimportanceofarewardtothem D.toincreasethechanceleveloftheircorrectanswers 2Whatcanbelearnedfromthelastparagraph? A.Honeybeescanonlyworkoutnumberstaughtbefore. B.Alotofmysteriesabouthoneybeeshavebeensolved. C.Thebrainsizeofhoneybeesdeterminestheircalculatingability. D.Thepowerofhoneybeesbrainsmaygobeyondourexpectations. 3Whatistheauthor'spurposeinwritingthetext? A.Topresenthoneybees'abilitytoperformbasicmath. B.Topersuadepeopletoexploremoreabouthoneybees. C.Todiscusshowhoneybeesrecognizeunfamiliarnumbers. D.Toexplainwhyhoneybeesaresmarterthanotheranimals.
假定你是李华你在某贴吧上看到美国孔子学院ConfuciusInstitute的学生Henry发帖希望通过网络视频互动学习中国诗词.请你给他写封邮件内容包括: 1.表示愿意帮助他; 2.说明你想帮助他的原因. 注意: 1.词数100左右; 2.可以适当增加细节以使行文连贯.
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