光環(huán)PMP資料：項(xiàng)目管理10大知識(shí)領(lǐng)域總體流程圖南孚電池存放注意事項(xiàng)南孚電池存放注意事項(xiàng)

/南孚電池存放注意事項(xiàng)南孚電池存放注意事項(xiàng)

溫度過(guò)高或過(guò)低以及潮濕環(huán)境都會(huì)影響電池使用壽命。電池的存放應(yīng)避免放在暴曬的汽車?yán)?，北方冬季戶外寒冷的環(huán)境，南方的梅雨季節(jié)，地下室潮濕的環(huán)境。電池存放的溫度應(yīng)為10℃-30℃，20℃-25℃尤佳，過(guò)高過(guò)低的溫度均會(huì)影響到電池的使用壽命。電池千萬(wàn)不能靠近火源，可能會(huì)發(fā)生爆炸，不要放在兒童可以拿到的地方，孩子好奇可能把電池放到嘴里，給孩子造成不必要的危險(xiǎn)，不要把未包裝的電池放到口袋里，電池會(huì)接觸到鑰匙和硬幣之類的金屬物引起短路.

PETS3全國(guó)公共英語(yǔ)三級(jí)寫(xiě)作萬(wàn)能模板PETS3全國(guó)公共英語(yǔ)三級(jí)寫(xiě)作萬(wàn)能模板

PETS3全國(guó)公共英語(yǔ)三級(jí)寫(xiě)作萬(wàn)能模板Pets3全國(guó)公共英語(yǔ)3級(jí)萬(wàn)能模板大作文120字，小作文100字。以下是框架。請(qǐng)求信Dear，Mynameis,andIam.Ihavemadeupmymindtowritetoyouinthehopethatyoucanfurnishmewiththeinformationregarding.AtthepresentIampreparing/doing,andaminlackofthatiscrucialforthework/project/program.Therefore,itwouldbeofgreathelpifIcanhaveyourhelpfor.PleasegetbacktomeatyourearliestconvenienceasIhavetosoon.Iamprayingforyourreplywithfullappreciation.Yourssincerely,WangLin建議信Dear，Iamwritingtoexpressmyviewsconcerning.Inthefirstplace,Iwouldliketosaythankyouforthehelpandeverythingelseyouhavebeenofferingtous.Meanwhile,Ialsowanttomakesomeadvicetobetter.Firstly,wehavefoundthat.Secondly,wewantto.Finally,wehopethat.Iamlookingforwardstoyourconsiderationaboutmyproposals.Thanksinadvanceforthat.Yourssincerely,WangLin求職信ToWhomItMayConcern,Ihavelearntfromyesterday’snewspaperthatyouareemploying.Iwishtobeconsideredasanapplicantfortheposition,andbegtostatemyqualificationsasfollows:Iamyearsold,amajorstudentofUniversity/College.Duringmyacademicyears,Ihaveshownexcellentperformanceandhavebeenawardedfirst-classscholarshipeachyear.Inadditiontomyeducationalbackground,Ihavetherichworkexperienceinthefieldsof.Therefore,IbelieveIcanbeofvaluetoyourcompany.Enclosedismyresumeforyourreference,andIshallbegladtocallatyourofficeifyoudesireaninterview.Thankyou.Yourssincerely,WangLin道歉信Dear，Iamwritingthislettertoapologizetoyouformyfailingto.Thereasonisthat.IamsorrythatIcannotfinishintime,butisitpossiblethatImakeupthelossby?Ifso,Iwillputeverythingelseasideto.Idohopethatyoucanunderstandmysituationandacceptmyapology.Yourssincerely,WangLin感謝信Dear，Onbehalfof,Iwouldliketoextendourmostsinceregratitudefor.Weappreciategreatlyyouraidinnotonly,butalso.Itissaidthatyourthatwecouldenjoysuchawonderfultrip/arriveatsuchsplendidachievements,andwewillneverforgetyourpainstakinglaborandfullcooperation/warmhospitality.Withthisletterwewouldalsoliketoformallyinviteyouto,sothat.WElookforwardstohostingyou.Withpersonalregards.Yourssincerely,WangLin投訴信Dear,LastweekIboughtatyourstoreandwhenIgotithomeitdidnotworkatall.WhenItriedtoreturnittothestore,IwastoldthatIcouldnotgetrefunded.Thesigninyourstoresaysthatmoneyisreturnedwithin7daysofpurchaseifanyproblemexists,andIdidthatwithinthesaidtime.ThusIinsistthatIshouldhavemymoneybackbyreturnthetoyoustore。IfIdonotreceiveanysatisfyingresponse,IwillfurthercomplaintotheConsumerProtectionAssociation.Yours,WangLin詢問(wèn)信Dear，Iamwritingtoseeifitispossibleforyoutoprovidesomeinformationregarding.Currently,Iamdoing/planning/organizing,andaminurgentneedofthefollowingthings.Firstofall,.Secondly,.Thirdly,.Iwouldalsoliketoinquireif.Ifso,couldyouplease.Yourpromptattentionwouldbehighlyappreciated,andthankyouforyourconsideration.Yourssincerely,WangLin邀請(qǐng)信Dear,Onbehalfof,Iwouldliketoinviteyoutovisitouruniversity/myhometownfor.Itwouldgiveusgreatpleasureifyoucoulddeliveraspeechonthetopicofduringthevisit,because.Iamsurethatitwouldbeimmenselybeneficialtoif.Duringyourstayin,wewouldliketoofferyouwith,,whichisfreeofcharge,and.Wewouldappreciateitverymuchifyoucouldacceptourinvitation.Yourssincerely,WangLin祝賀信Dear，Congratulationsonyour.IknowhowhardyouhavebeenworkingandIamveryproudofyouforyourachievement.Iunderstandforsurethatitisyourhardwork/yourexcellentabilitythatleadsyoutothecurrentsuccess.Thisnewposition,ontheotherhand,addsanewdimensiontoyourlifeandisboundto.What’smore,Ialsobelievethat.Mayallgoesbeautifullyinyournewpost!Yourssincerely,WangLin大作文Fromthedrawing/chart,wecanlearnthat.(描圖或描表)Itcanbeseeneasilythatquitealotofpeoplethinkiteasierforthemtounderstandthissituation.Wecandeducefromthatpeople’sopinionsonthisissuevaryfrompersontoperson.Somepeopletakeitforgrantedthatit’snottheirdutytoshowtheirconcerntoitandthere’soneinmillionchancesforthemtohavesuchanexperience.Forexample,theyfirmlybelievethattheyshouldnotknowhowtoconfrontanddealwithit.Buttheyoftenneglectthatfactthatonceeveryonejusthassuchanattitudetowardsthis,somethingpracticalneedtobechangedwillmakeitprogressslowly.Yettherearealsoanothergroupofpeoplewhoholdadifferentpointofview.Theythinkthattheyshouldtaketheirshoulderonthismatterandtellpeoplewhattodoandhowtodostepbystep.Besides,theirdutyshouldbestrengthenedtomaketheunconsciousaware.Personally,myattitudeforthismatterispositive,withreasonsasfollows.Firstly,theobjectiveworldoffergreathelpforitlikemakinglawstoregulatetheabnormal.Moreover,thesubjectiveeffortofourshasworked.Therefore,thingswouldnotbeworseaswehadthought.學(xué)生范文1：學(xué)生范文學(xué)生范文（圖表寫(xiě)作）Asisdescribedinthepicture,+描述圖畫(huà)內(nèi)容……?Itseemstomethatthepictureissendingamessageaboutresponsibility.Responsibilityisakeywordthatweshouldneverdisregard.

??Whydoes……attractpeople'sgrowingattention?Alotofreasonsmaycontributetothisphenomenonandeachofthemwillbeshownbelow.Firstandforemost,……???Besides,……???Lastbutnotleast,……??Withoutanydoubt,thesethingscanalsotriggerproblems,forinstance,……?

??Thepictureaimsatinformingusofthesituationoftheresponsibility.AsfarasIamconcerned,itisbetterforusto……?Consequently,tosolvetheproblem,somemeasuresshouldbe?taken.Onlyinthiswaycanwecreateourworld?morebeautiful.????????????學(xué)生范文2：Socialmorality（社會(huì)道德）??Socialmoralityisthemostimportantvalueinourlife.itisconducivetotheculturecultureofsociety,andpeopleshouldequipitequippedwiththeirbehaviors.??Inourcitymoreandmorepeopleoffendagainstthelaw,theybreakpublicregulationsrules/regulations,forexample,somepeopledodrunkdrivingandrunningaredlightanditleadstocarcrash.thedriver’scarelessdrivingwillcausethecaraccidents.Ontheotherhand,peopleusuallythrowplasticbagsandallkindsofpackageseverywhere.Asaresult,thewhitepollutionaffectsusinmanyways.Itisobviousfromtheirbehaviorthattheyhavenomorality.ithinktheydeservetobepublishedheavilypublishedheavilybythelaw.??allinall,weshouldrecycleitandcomplywithpublicmorality,sometimewecaneducatethepublicindailylife.andatthesametimealsowecanimprovepublicmorals,onlyinthiswaycanweliveinamorepeacefulandcontributestodevelopmentofourcountry.熱點(diǎn)話題作文?★熱點(diǎn)話題作文SocialNetworkSites1.當(dāng)今社會(huì)，社交網(wǎng)站很流行2.各人對(duì)此看法不同3.我的看法??????????????Inrecentyears,socialnetworksiteslikeRenrenandKaixinhaverapidlygainedpopularityamongallkindsofpeople.Manypeoplespendalotoftimeonthosesiteschatting,makingfriendsandplayinggames.Thosesiteshavebecomeapartoftheirlife.Thepublicholddifferentviewsonthisphenomenon.Someareinfavorofthosesitesfortheyprovidemanyopportunitiestoknowotherpeopleandtoknowwhat’shappeningintheworld.Besides,they’reveryconvenienttoaccess.Onecanuseacomputerorcellphonetologonathome,inarestaurant,oreveninthesubway.Butsomepeopledon’tapproveofthesocialnetworksites.Theysaythatpeoplearewastingtoomuchtimeonthesites.Someevengetaddictedtothemandabandontheirreallife.Afterall,theydon’tliveinthevirtualworld.Inmyopinion,thesocialnetworksitescanbeveryhelpfulwhenwewanttokeepintouchwithfriends,butwemustrememberthattherealworldisthemostimportantinourlife.?熱點(diǎn)話題作文Low-carbonLifestyle低碳生活（CreateaConservation-Orientedsociety）節(jié)約型社會(huì)1、目前低碳生活成為一種流行2、低碳生活指的是、、、3、作為大學(xué)生我們?cè)撛趺醋觥痉段摹縇ow-carbonLifestyleEverysince,theWorldClimateConferencewasheldinCopenhagen,theterm“l(fā)ow-carbonlifestyle”hasbecomeabuzzwordinourdailylife.Everyone,oldoryoung,istakingaboutitandexertinghimselftoachievethelow-carbongoaloflow-carbonlifestyle.Whatonearthislow-carbonlifestyle?Low-carbonlifestylemeanstolowertheemissionofcarbon,especiallycarbondioxide,byreducingtheenergyweuseinourdailylife.Forcommonpeoplelikeus,thisisanattituderatherthanacapacity.Low-carbonlifestylecallsfortheactiveparticipationofallthepeopleintheprocessofsavingelectricityandgas,aswellasrecyclingtheusefulmaterials.Ascollagestudents,weshouldcontributetotherevolutionoflow-carbonlifestylebyallmeans.Firstly,weshouldavoidusingdisposableproductstoreducetheemissionofcarbondioxide.Secondly,takingpublictransportratherthandrivingisanothereffectiveway.Lastbutnotleast,bothweandtheearthwillbenefitenormouslyifweeatgreenfoodinsteadofjunkfood.熱點(diǎn)話題作文SpamMassage目前垃圾短信泛濫這種現(xiàn)象產(chǎn)生的原因如何解決這個(gè)問(wèn)題【范文】SpamMessageWiththeincreasinguseofcellphones,spammessagehasbecomeaheatedissue.Accordingtoasurvey,onaverage,peoplereceiveabout40piecesofspammessagepermonth.Spammessagemaydisturb,confuse,oreventhreatenpeopleatanytime.Generally,therearetworeasonsforthespamepidemic.Ononehand,duetothefactthattextmessageisacomparativelycheapchannel,manycompaniestakeadvantageofittoadvertisetheirproductsorservices.Whetherpeoplearewillingtoreceivethemessageisneglected.Ontheotherhand,operatorsholdinglotsofinformationoncellphoneusersselltheinformationandmakemoneyoutofit.Tosolvetheproblemofspammessage,relativeauthoritiesandprofessionalsshouldmakejointefforts.Thegovernmentshouldsetuplawstoseverelypunishtheillegaladvertisersandthosewhodiscloseusers’information.Cellphoneresearchersanddevelopersshouldupgradetheproductsandenablethemtodeletethespamautomatically.Shouldpeopleacttogether,theywillbefreefromthespammessage.熱點(diǎn)話題作文[寫(xiě)作范文]TVPKShows話題：1.現(xiàn)在許多大學(xué)生放棄學(xué)業(yè)去參加“選秀”節(jié)目;2.有人認(rèn)為“選秀”節(jié)目為這些大學(xué)生提供了展示自我的平臺(tái)，他們應(yīng)該抓住機(jī)會(huì)“秀出自己”;但也有人認(rèn)為這種選秀節(jié)目會(huì)養(yǎng)成大學(xué)生“急功近利”的心態(tài);3.那么作為一個(gè)大學(xué)生，你是怎么看待這件事情的?[思路點(diǎn)撥]：1)對(duì)選秀節(jié)目的看法。2)理性對(duì)待選秀現(xiàn)象。一方面它滿足了觀眾普遍參與的愿望，另一方面需要我們從正確的角度來(lái)理解它，用正確的心態(tài)來(lái)對(duì)待它。3)對(duì)產(chǎn)生“選秀”熱現(xiàn)象原因的分析。比如選秀所帶來(lái)的是前所未有的視覺(jué)沖擊和心靈體驗(yàn)，偶像們和粉絲們似乎在這里找到了價(jià)值認(rèn)同等。4)重在參與和過(guò)程，特別是在競(jìng)爭(zhēng)中培養(yǎng)能贏也能輸?shù)男膽B(tài)。5)從選秀活動(dòng)中得到的收獲。比如張揚(yáng)自我，敢于拼搏，認(rèn)賭服輸?shù)?。Nowadays,TVPKShows(orwecancallitTalentShows)aregreathitinChinaandhaveattractedmanyyoungpeople.Asforme,TVPKShows,asallotherthings,havebothpositiveandnegativeeffects.Therefore,themostcrucialthingishowweseethem。SomepeoplethinkTalentShowsprovidegrass-rootpeoplewithastagetodisplaytheirtalents,sotheyshouldseizeeveryopportunitytoshowofftheirtalents.SomeCollegestudentsevengiveuptheirstudiestoattendtheseTVPKShowsinthehopeofbecomingfamousovernight.TheyevenregardTVPKshowsasashortcuttothesuccess.WhileotherpeoplereckonthatTVPKShowswilldeveloptheundergraduates'attitudeofanxiousofachievingquicksuccess.Andoncetheywerefailedintheseshows,theywouldsufferagreatpsychologicalunbalance.Thisisreallybadtotheirphysicalandpsychologicalhealth。Tosumup,everythinghasitslimit.Aslongastherightattitudeisemployed,thenitisOK.熱點(diǎn)話題作文CollegeStudents’JobHunting1.近年來(lái)出現(xiàn)了大學(xué)生就業(yè)難的現(xiàn)象2.產(chǎn)生這種現(xiàn)象的原因3.如何解決這一問(wèn)題Inrecentyears,collegestudentsfinditincreasinglydifficulttogetajob.Itsoundsstrangesinceyoungcollegestudentsareusuallyintelligent,well-educated，andeagertobringtheirtalentintofullplay.Thenwhatcausethestrangephenomenon?Thereareseveralreasonsforthis.Tobeginwith,nowadayscollegestudentsaimtoohigh.Alltheywantare“good”jobswhichcouldoffergoodsalary,comfortableworkingconditions,highsocialstatus.Consequently,mostcollegestudentsareunwillingtoacceptvacantjobstheyconsidernot“good”enough.Anotherreasonisthatthereisabiggapbetweenthemajorssomestudentsstudyinschoolandthedemandsofvacantjobs.Socompaniesthinksomestudentsarenotfitforthejobs.Solutiontotheproblemrequireseffortsonboththesocietyandthestudents.Thecompaniesshouldvaluethestudent’stalentandknowledgewhilethelattershouldnotmerelyaimatmaterialgains.Theyshouldbedown-to–earthinbuildinguptheircareer.Furthermore,theyshouldfacetheirweakpointssoastoimprovethemselvesandbemorecompetent.熱點(diǎn)話題作文尊老愛(ài)幼1老人應(yīng)該受到全社會(huì)的尊重。

2.兒童應(yīng)該受到全社會(huì)的愛(ài)護(hù)。

3.尊老愛(ài)幼的意義。

Theelderlyandtheyoungaretwoindispensablepartsinsociety,andweshouldtreatthemkindly.Ontheonehand,theelderlyshouldberespectedbyallthoughthesociety.Weshouldalwaysbearinmindthatwhatwehaveandenjoynowwascreatedbytheagedpeepleintheearlydays,astheoldChinesesayinggoes,"Onegenerationplantstressunderwhoseshadeanothergenerationrests".Thosepeoplewhoconsidertheelderlyuselesscan'tdenythattheyarehoundtobecomeoldsomeday,therefore,anykindofmaltreatmentofoldpeopleshouldbeprohibited.

作文

地帶提供中文翻譯:老人還小孩是社會(huì)的兩個(gè)極端群體,我們應(yīng)該善待他們。首先,老人應(yīng)該受到全社會(huì)的尊敬。我們應(yīng)該時(shí)常銘記,我們今天所擁有、享受的一切都是上輩給我們創(chuàng)造的,正如中國(guó)一句俗話:“前人栽樹(shù),后人乘涼”。那些認(rèn)為老人沒(méi)有用處的人,毫無(wú)疑問(wèn),他們也會(huì)有一天變老的,因此,必須禁止任何一種虐待老人的行為。

Ontheotherhand,allofusshouldtakegoodcareoftheyoung,too.Itischildrenwhomakeusseethefutureofourstate,fortheyarethefuturebuildersofourcountry.Therefore,weshouldtakecare

ofthemandprotectthemfrombeinghurt.Butitdoesn'tmeanthatwecanspoilthem.Spoiltchildrenarewellseennowadays.Theydependontheirparentssomuchthattheycandonothingwithoutthem.How

canwecountonthosechildrentomakecontributionstooursociety?Weshouldtakegoodcareoftheyoungsothattheywillbeusefulinthesocialconstructionlaterwhentheycomeofage.

其次,我們所有人也都應(yīng)該善待兒童。孩子們讓我們看到了我們國(guó)家的未來(lái),因?yàn)樗麄兪菄?guó)家未來(lái)的棟梁。因此,我們必須善待他們、保護(hù)他們,避免他們受到傷害。但是這并不意味著我們可以放縱他們。寵壞的孩子現(xiàn)在比比皆是。他們太多的依賴他們的父母,到頭來(lái)他們終歸一事無(wú)成。我們?cè)撊绾渭南Ｍ谶@樣的孩子對(duì)社會(huì)作出貢獻(xiàn)呢?我們應(yīng)該用心呵護(hù)好孩子們,這樣他們長(zhǎng)大后才能成為一名為國(guó)家做貢獻(xiàn)的有用人才。本文來(lái)自作文地帶

ItisaChinesetraditiontorespect,loveandsupporttheelderlyandtoprotect,educateandtakegoodcareoftheyoung.Let'skeepanddevelopthatvirtuetogether,becauseonlyinthiswaycanwefeelasifwewerelivinginabigandhappyfamily,thenoursocietywilldevelopharmoniously.

愛(ài)護(hù)和扶助老年人,保護(hù),

教育

和照顧孩子,(尊老愛(ài)幼)它是中國(guó)傳統(tǒng)美德。我們要繼續(xù)保持和發(fā)揚(yáng)這一共同的美德,因?yàn)橹挥羞@樣我們才能體會(huì)到自己置身于一個(gè)快樂(lè)的大家庭之中,這樣我們的社會(huì)也會(huì)變得更為富強(qiáng)。

下文為一篇作文地帶

英語(yǔ)

專家靳秀卿翻譯的美文,僅供參考:

Hisfatherwasatalltrees,supportthewholefamily,ifyoudonothavehim,haventheyoungseedling;HismotherwasaLotusleaf,Withouther,Areyoumissingthisfishburrieroflife.

父親是一棵參天大樹(shù),支撐著整個(gè)家庭,如果沒(méi)有他,就沒(méi)有你這棵幼小的樹(shù)苗,母親是一片荷葉,沒(méi)有她,你這條小魚(yú)缺少生命的屏障。

Parentsinmanypeople'seyesnolongerimportant,evenaburden,intheireyes,manisflowers,nowithasbeenonthewane,oncelushtrees,nowithasfallentotheelderlybutdoforsocietytogive.

父母在很多人眼里已經(jīng)不再重要,甚至是一種負(fù)擔(dān),在他們眼里,老人曾是盛開(kāi)的花朵,現(xiàn)在卻已凋零,曾是茂盛的大樹(shù),現(xiàn)在卻已落葉,可老人卻為社會(huì)做著無(wú)私的奉獻(xiàn)。

"Respectingandcaringforthecaring,harmoniusPrefecture"!

“敬老愛(ài)老助老,共建和諧左旗”!熱點(diǎn)話題作文提高大學(xué)生的心理健康HowtoImproveStudent’sMentalHealth

Moreandmorepeoplehasbeguntoconsidertheirmentalhealththatplaysanimportantroleinourdailylife.Nowadays,manystudentssufferfrommentalillness,whichseriouslyinfluenceontheirstudyanddailylife.

越來(lái)越多的人開(kāi)始擔(dān)心在日常生活中起著重要作用的心理健康。如今，許多學(xué)生都有嚴(yán)重影響他們學(xué)習(xí)和生活的心理問(wèn)題。

Consequently,schoolsshouldtakeeffectmeasurestosolvethisproblem.Thementalhealthconsuldepartmentshouldbebuiltinschooltohelpthosestudentswhosufferfrommentalillness.Inthisway,thosewhoaresubjectedtothementalillnesscangetridoftheunhealthyshadowandbuilduptheirconfident.Ontheonehand,schoolcanprovideachanceforstudentstoshowtheirtension.Ontheotherhand,presidentandteachersshouldtrytheirbesttohelpthosestudents.Inaddition,givingmoreconcentrationontheirphysicalhealthwouldhelpthemtorebuildtheirmentalhealth.

因此，學(xué)校應(yīng)采取有效的措施來(lái)解決這個(gè)問(wèn)題。學(xué)校應(yīng)建立心理健康咨詢室來(lái)幫助那些患有心理問(wèn)題的學(xué)生。這樣，那些正遭受心理疾病的學(xué)生可以從不健康的陰影中解脫，建立信心。另一方面，學(xué)校可以為學(xué)生提供機(jī)會(huì)來(lái)展示他們的緊張。另一方面，校長(zhǎng)和教師應(yīng)盡力幫助那些學(xué)生。此外，對(duì)他們的身體健康提供更多的關(guān)注會(huì)幫助他們重建良好的心理健康。

Fromwhathasbeenmentionedabove,asstudents,weshouldtryourbesttocommunicatewithour,friends,parentsorteachers.Lastbutnottheleast;weshouldnothesitatetogotothementalhealthconsultroomforhelpwhenwehavetroubleinmentalillness.Onlyinthisway,canwereduceourmentalillness,andwewillbecomeastrongandconfidentpersonintheend.

綜上所述，作為學(xué)生，我們應(yīng)該盡我們最大的努力與我們的朋友，父母或老師交流。最后但并非最不重要的；在我們有心理問(wèn)題的時(shí)候，我們應(yīng)該毫不猶豫地去心理健康咨詢室求助。只有這樣，我們才可以減少心理疾病，最終成為一個(gè)堅(jiān)強(qiáng)自信的人。熱點(diǎn)話題作文責(zé)任談?wù)剛€(gè)人責(zé)任(OnResponsibility)WeChineseplaceahighvalueonresponsibility.ItistraditionaldealforusChinesetotakecareofourparents.Weowethemagreatdealforthelovetheygiveuswhilewearegrowingup.Itisright,then,whentheyaregettingolderwitheachpassingday,wehelpthemandseethattheyarewellcaredfor.Inthisway,wegivebacksomeoftheloveandcaretheyhavegiventous.AsloyalChinesecitizens,wemusthaveastrongsenseofresponsibilitytoourcountry.ItisourdutytokeepChinastrongintheeyesFinally,wemustrememberthatwehavearesponsibilitytotheworldwelivein.Itisimportantthatwelearntoliveinpeacewiththeothernationsoftheworldandtoprotectourenvironment.Ifwecarryouttheseresponsibilities,wewillberespectedcitizensofourcountry.WeChineseplaceahighvalueonresponsibility.ItistraditionaldealforusChinesetotakecareofourparents.Weowethemagreatdealforthelovetheygiveuswhilewearegrowingup.Itisright，then，whentheyaregettingolderwitheachpassingday，wehelpthemandseethattheyarewellcaredfor.Inthisway,wegivebacksomeoftheloveandcaretheyhavegiventous.AsloyalChinesecitizens,wemusthaveasenseofresponsibilitytoourcountry.Itisourdutytokeepintheeyesoftheworld.Therefore,,wouldwebethreatenedbyaninvader.Inshort,tobearesponsiblecitizen,wemustputourcountry'swelfareaboveourownneeds.Finally,wemustrememberthatwehavearesponsibilitytotheworldwelivein.Itisimportantthatwelearntoliveinpeacewiththeothernationsoftheworldandtoprotectourenvironment.?Ifwecarryouttheseresponsibilities，wewillberespectedcitizensofourcountry.

初中物理讀數(shù)專題訓(xùn)練初中物理讀數(shù)專題訓(xùn)練

/初中物理讀數(shù)專題訓(xùn)練常用儀器讀數(shù)專題分別讀出圖1中各刻度尺的讀數(shù)(1)圖A中木塊的長(zhǎng)度是______㎝；(2)圖B中圓的直徑是______㎝；(3)圖C中木塊的長(zhǎng)度是____㎝圖A圖B圖C2、一架天平放在水平桌面上，天平的指針如圖2所示，則應(yīng)調(diào)節(jié)天平橫梁右端的螺母向＿＿邊移動(dòng)，直至指針指到＿＿＿＿＿時(shí)，才能用天平進(jìn)行測(cè)量。測(cè)量時(shí)應(yīng)將物體放在＿＿＿盤(pán)中，砝碼放在＿＿盤(pán)中，當(dāng)調(diào)節(jié)游碼的位置使天平再次平衡時(shí)，盤(pán)中的砝碼和游碼如圖2所示，則待測(cè)物體的質(zhì)量為＿＿＿g。3、天平是用來(lái)測(cè)量_______的儀器，圖3中所示天平的讀數(shù)是______g。圖2圖3圖44、小明和sTs小組同學(xué)為了探究家鄉(xiāng)特產(chǎn)——“南珠”的物理特性，他們精選了十幾顆流沙鎮(zhèn)產(chǎn)的珍珠進(jìn)行實(shí)驗(yàn)，天平和量筒的示數(shù)分別如圖4甲、乙所示，由圖可知，珍珠的質(zhì)量為_(kāi)_____g，體積為_(kāi)______cm3，珍珠密度為_(kāi)_______kg/m3．5、如圖5所示，圖甲是用彈簧測(cè)力計(jì)測(cè)物體重力，則物體重力是是________N；圖乙是用彈簧測(cè)力計(jì)測(cè)物體在水平桌面上作勻速直線運(yùn)動(dòng)時(shí)的摩擦力，則物體受到的摩擦力是______N；圖丙中秒表的讀數(shù)是________s。圖甲圖乙圖5圖丙6．如圖6所示，線圈長(zhǎng)度為_(kāi)__________cm，體溫計(jì)的讀數(shù)為_(kāi)_________℃，汽車速度表讀數(shù)為_(kāi)________Km/h。圖67．在用天平測(cè)量物體質(zhì)量時(shí)，將天平放在水平臺(tái)面上后，如圖7甲所示，此時(shí)天平________邊重，應(yīng)該____________；天平平衡后，測(cè)量物體質(zhì)量，如圖乙所示，則物體質(zhì)量為_(kāi)__________g。圖78．如圖8所示，電流表示數(shù)為_(kāi)________，電壓表示數(shù)為_(kāi)________，電能表示數(shù)為_(kāi)_________。圖8

9．如圖9所示，秒表讀數(shù)為_(kāi)_________，彈簧測(cè)力計(jì)讀數(shù)為_(kāi)__________，金屬塊體積為_(kāi)__________。圖9

10．請(qǐng)你讀出圖10中所示的各測(cè)量工具的示數(shù)，并把它們填寫(xiě)在下面的橫線上：木塊的長(zhǎng)度是________；物體的重力為_(kāi)_________；溫度計(jì)的示數(shù)是_______。圖1011、實(shí)驗(yàn)室用托盤(pán)天平來(lái)測(cè)量物體的質(zhì)量，如圖11甲所示，燒杯和水的總質(zhì)量是_____g。圖乙是市場(chǎng)上最常見(jiàn)的臺(tái)秤，圖中的讀數(shù)是＿＿＿＿。甲乙圖1112、圖12中電表的示數(shù)分別為：甲圖讀數(shù)是_______，乙圖讀數(shù)是______，丙圖讀數(shù)是＿＿＿。甲乙丙圖1213、如圖13是家用電能表，此時(shí)電能表的讀數(shù)是＿＿＿＿kW·h。圖13圖14圖14中水的體積是＿＿＿＿cm3。15．在圖15中，甲圖是汽車的速度表，此時(shí)的車速是＿＿＿＿，圖乙中水表的讀數(shù)是＿＿＿＿，圖丙時(shí)鐘表示的時(shí)刻是＿＿＿＿＿，圖丁的停表讀數(shù)是＿＿＿秒。甲乙丙丁圖1516．圖16甲中彈簧測(cè)力計(jì)的示數(shù)是N。甲中彈簧測(cè)力計(jì)的示數(shù)是N。甲乙圖1617．圖17中各測(cè)量工具的讀數(shù)是多少，分別填在空格處（2）圖甲中溫度計(jì)的示數(shù)是℃；（3）圖乙中電流表指針?biāo)傅氖緮?shù)為A；（4）圖丙中物體的長(zhǎng)度為cm。（5）圖丁中電能表的示數(shù)為_(kāi)__________kw·h甲乙丙丁圖1718．用如圖18所示的實(shí)驗(yàn)裝置測(cè)量杠桿的機(jī)械效率．實(shí)驗(yàn)時(shí)，豎直向上勻速拉動(dòng)彈簧測(cè)力計(jì)，使掛在較長(zhǎng)杠桿下面的鉤碼緩緩上升．實(shí)驗(yàn)中，將杠桿拉至圖中虛線位置，測(cè)力計(jì)的示數(shù)F為_(kāi)___N，鉤碼總重G為1.0N，鉤碼上升高度h為0.1m，測(cè)力計(jì)移動(dòng)距離s為0.3m，則杠桿的機(jī)械效率為_(kāi)_．請(qǐng)寫(xiě)出使用該杠桿做額外功的一個(gè)原因：_______________．圖1819．如圖19所示的電路圖：(1)在研究電流、電壓和電阻關(guān)系時(shí)，接入5Ω的電阻，改變滑動(dòng)變阻器的阻值，可以探究電流與__的關(guān)系；把5Ω電阻換成10Ω的電阻，實(shí)驗(yàn)?zāi)康氖翘骄侩娏髋c________的關(guān)系，同時(shí)要向______移動(dòng)滑動(dòng)變阻器使電阻兩端的_______不變。(2)這個(gè)電路圖也可用于伏安法測(cè)電阻或電功率，實(shí)驗(yàn)時(shí)小明觀察到兩個(gè)電表的示數(shù)如下，則小明測(cè)得R的電阻是_____Ω，R的電功率是_________W。0123A0.63－0051015V315－－1230AV··RR′S圖19

頻率與概率導(dǎo)學(xué)案頻率與概率導(dǎo)學(xué)案

/頻率與概率導(dǎo)學(xué)案頻率與概率導(dǎo)學(xué)案學(xué)習(xí)目標(biāo)問(wèn)題化?知識(shí)目標(biāo)：當(dāng)事件的試驗(yàn)結(jié)果不是有限個(gè)或結(jié)果發(fā)生的可能性不相等時(shí)，要用頻率來(lái)估計(jì)概率。?能力目標(biāo)：通過(guò)試驗(yàn)，理解當(dāng)試驗(yàn)次數(shù)較大時(shí)試驗(yàn)頻率穩(wěn)定于理論概率，進(jìn)一步發(fā)展概率觀念；理解用樣本來(lái)估計(jì)總體的統(tǒng)計(jì)思想。?情感目標(biāo)：在解決問(wèn)題中學(xué)會(huì)用數(shù)學(xué)的思維方式思考生活中的實(shí)際問(wèn)題的習(xí)慣。?學(xué)習(xí)重點(diǎn)：理解當(dāng)試驗(yàn)次數(shù)較大時(shí)，試驗(yàn)頻率穩(wěn)定于理論概率。?學(xué)習(xí)難點(diǎn)：對(duì)概率的理解。?自主學(xué)習(xí)，合作探究?1思考：當(dāng)實(shí)驗(yàn)的所有結(jié)果不是有限個(gè)；或各種可能結(jié)果發(fā)生的可能性不相等時(shí)，該如何求事件發(fā)生的概率呢？??2自學(xué)書(shū)P172?試驗(yàn)：把全班同學(xué)分成10組，每組同學(xué)擲一枚硬幣50次，整理獲得的試驗(yàn)數(shù)據(jù)，并記錄在投擲次數(shù)n?50?100?150?200?250?300?350?400?450?500?正面朝上的次數(shù)m?24?52?73?99?124?146?180?201?229?256?正面朝上的概率m/n?????根據(jù)上表中的數(shù)據(jù)，標(biāo)注出對(duì)應(yīng)的點(diǎn)：???思考：隨著拋擲次數(shù)的增加，“正面向上”的頻率的變化趨勢(shì)________?歸納總結(jié)：在大量試驗(yàn)中，頻率P就是概率利用頻率估計(jì)概率的數(shù)學(xué)依據(jù)是大數(shù)定律：一般地，在大量重復(fù)試驗(yàn)中，如果隨機(jī)事件A出現(xiàn)的頻率m/n_________某個(gè)常數(shù)P，則事件A發(fā)生的概率P(A)=________。?因?yàn)樵趎次試驗(yàn)中，事件A發(fā)生的頻數(shù)m滿足0≤m≤n，所以????0≤?m/n≤1，進(jìn)而可知：頻率所穩(wěn)定得到的常數(shù)P滿足0≤P≤1，因此，?0≤P(A)≤1例：下表記錄了一名球員在罰球線上投籃的結(jié)果.?投籃次數(shù)（n）?50?100?150?200?250?300?500?投中次數(shù)（m）?28?60?78?104?123?152?251?投中頻率（m/n）????????(1)計(jì)算投中頻率（精確到0.01）(2)這名球員投藍(lán)一次，投中的概率約是多少？（精確到0.1）？?學(xué)以致用?一個(gè)口袋中放有20個(gè)球，其中紅球6個(gè)，白球和黑球個(gè)若干個(gè)，每個(gè)球出了顏色外沒(méi)有任何區(qū)別：???(1)?小王通過(guò)大量反復(fù)試驗(yàn)(每次取一個(gè)球，放回?cái)噭蚝笤偃?發(fā)現(xiàn)，取出黑球的頻率穩(wěn)定在1/4左右，請(qǐng)你估計(jì)袋中黑球的個(gè)數(shù)。??????(2)?若小王取出的第一個(gè)是白球，將它放在桌上，從袋中余下的球中再任意取一個(gè)球，取出紅球的概率是多少?頻率與概率檢測(cè)題1.一水塘里有鯉魚(yú)、鯽魚(yú)、鰱魚(yú)共1?000尾，一漁民通過(guò)多次捕獲實(shí)驗(yàn)后發(fā)現(xiàn)：鯉魚(yú)、鯽魚(yú)出現(xiàn)的頻率是31%和42%，則這個(gè)水塘里有鯉魚(yú)_______尾,鰱魚(yú)_______尾.?2.某口袋中有紅色、黃色、藍(lán)色玻璃共72個(gè)，小明通過(guò)多次摸球試驗(yàn)后，發(fā)現(xiàn)摸到紅球、黃球、藍(lán)球的頻率為35%、25%和40%，估計(jì)口袋中黃色玻璃球有_____個(gè)．?3．盒子中有白色乒乓球8個(gè)和黃色乒乓球若干個(gè)，為求得盒中黃色乒乓球的個(gè)數(shù)，某同學(xué)進(jìn)行了如下實(shí)驗(yàn)：每次摸出一個(gè)乒乓球記下它的顏色，如此重復(fù)360次，摸出白色乒乓球90次，則黃色乒乓球的個(gè)數(shù)估計(jì)為(????)?A．90個(gè)????B．24個(gè)???????C．70個(gè)????????D．32個(gè)?4．從生產(chǎn)的一批螺釘中抽取1000個(gè)進(jìn)行質(zhì)量檢查，結(jié)果發(fā)現(xiàn)有5個(gè)是次品，那么從中任取1個(gè)是次品概率約為（）．?A．11000??B．1200???????C．12???????????D．15?5．某人把50粒黃豆染色后與一袋黃豆充分混勻，接著抓出100黃豆，數(shù)出其中有10粒黃豆被染色，則這袋黃豆原來(lái)有（）．A．10粒????B．160粒??????C．450粒???????D．500粒??6、口袋里有紅、綠、黃三種顏色的球，其中紅球4個(gè)，綠球5個(gè)，任意摸出一個(gè)綠球的概率是1/5?，則摸出一個(gè)黃球的概率是________??????．投針試驗(yàn)導(dǎo)學(xué)案學(xué)習(xí)目標(biāo)?1.經(jīng)歷試驗(yàn),統(tǒng)計(jì)等活動(dòng)過(guò)程,在活動(dòng)過(guò)程中進(jìn)一步發(fā)展生生之間合作交流的意識(shí)和能力;?2.能用試驗(yàn)的方法估計(jì)一些復(fù)雜的隨機(jī)事件發(fā)生的概率.?教學(xué)重點(diǎn)：能用實(shí)驗(yàn)的方法估計(jì)一些復(fù)雜的隨機(jī)事件發(fā)生的概率．?教學(xué)難點(diǎn)：借助大量重復(fù)實(shí)驗(yàn)去感悟?qū)嶒?yàn)頻率穩(wěn)定于理論概率?自主學(xué)習(xí)，整體感知?蒲豐投針?lè)▏?guó)自然哲學(xué)家蒲豐先生經(jīng)常搞點(diǎn)有趣的試驗(yàn)給朋友們解悶。?1777年的一天，蒲豐先生又在家里為賓客們做一次有趣的試驗(yàn)，他先在一張白紙上畫(huà)滿了一條條距離相等的平行線。然后，他抓出一大把小針，每根小針的長(zhǎng)度都是平行線之間距離的一半。蒲豐說(shuō)：“請(qǐng)諸位把這些小針一根一根地往紙上隨便扔吧?！笨腿藗兒闷娴匕研♂樢桓赝埳蟻y扔。?蒲豐投針?最后蒲豐宣布結(jié)果：大家共投針2212次，其中與直線相交的就有704次。用704去除2212，得數(shù)為3.142。他笑了笑說(shuō)：“這就是圓周率π的近似值?！?蒲豐先生卻好像看透了眾人的心思，斬釘截鐵地說(shuō)：“諸位不用懷疑，這的確就是圓周率π的近似值。連圓規(guī)也不要，就可以求出π的值來(lái)。投擲的次數(shù)越多，求出的圓周率就越精確。”?合作交流，文本探究；?同學(xué)們,我們親自來(lái)體驗(yàn)一下這個(gè)有趣的試驗(yàn):?1.兩人一組;2.在紙上畫(huà)出一些平行線,先確定平行線之間的距離a和針長(zhǎng)l(l<a)的值(每根小針的長(zhǎng)度都是平行線之間距離的一半);3.至少做100次試驗(yàn),分別記錄其中相交(用1表示)和不相交(用0表示)的次數(shù);4.統(tǒng)計(jì)試驗(yàn)數(shù)據(jù),估計(jì)針與平行線相交的概率.?同學(xué)們,我們按下列步驟,統(tǒng)計(jì)全班的試驗(yàn)結(jié)果:?1.兩個(gè)小組(200次);????2.10個(gè)小組(1000次);?3.全班(約1200次);?????4.全年級(jí)(約9600次).?其中相交（用1表示）和不相交(用0表示)?次數(shù)?分類?200?1000?1200?9600?????課內(nèi)檢測(cè)，鞏固提高；?從一定的高度擲一個(gè)瓶蓋,落地后可能蓋面朝上,也可能蓋面朝下.你估計(jì)哪種事件發(fā)生的概率大?組成合作小組,用試驗(yàn)的方法估計(jì)蓋面朝上的概率,并交流各組的瓶蓋以及所求結(jié)果,看看結(jié)果是否相同,討論其原因.???投針試驗(yàn)檢測(cè)題1、小明做“擊鼓傳花”的游戲，兩手交替不停地在鼓上拍打，當(dāng)喊停時(shí)，請(qǐng)你估計(jì)小明右手落在鼓上的概率是多少？??????2、.如圖，有一輪盤(pán)，它的指針一頭粗一頭細(xì).?（1）若將指針固定，轉(zhuǎn)動(dòng)轉(zhuǎn)盤(pán)，指針細(xì)的一頭指向藍(lán)色區(qū)域的概率是多少？????.????（2）若將轉(zhuǎn)盤(pán)固定，轉(zhuǎn)動(dòng)指針，則細(xì)的一頭指向藍(lán)色區(qū)域的概率和（1）中的概率一樣嗎？不妨親自試驗(yàn)一下.????3、5.頻數(shù)和頻率都能反映一個(gè)對(duì)象在實(shí)驗(yàn)總次數(shù)中出現(xiàn)的頻繁程度，我認(rèn)為：?（1）頻數(shù)和頻率間的關(guān)系是_________；?（2）每個(gè)實(shí)驗(yàn)結(jié)果出現(xiàn)的頻數(shù)之和等于_________；4.拋擲一枚質(zhì)量分布均勻的骰子后，出現(xiàn)點(diǎn)數(shù)3的概率是（????????）?A.1/2????B.1/4?????????C.1/6?????????D.1/85.小明與父母從廣州乘火車回梅州參觀葉帥紀(jì)念館，他們買(mǎi)到的火車票是同一排相鄰的三個(gè)座位，那么小明恰好坐在父母中間的概率是???????6.拋圖釘時(shí)，圖釘落地有兩種情況，一種是針尖向下一種是釘帽向下，你能通過(guò)列表分別算出它們的概率嗎？?生日相同的概率導(dǎo)學(xué)案學(xué)習(xí)目標(biāo)通過(guò)試驗(yàn)、統(tǒng)計(jì)等活動(dòng)過(guò)程，估計(jì)一些復(fù)雜的隨機(jī)事件發(fā)生的概率。重難點(diǎn)學(xué)習(xí)用試驗(yàn)的方法估計(jì)復(fù)雜隨機(jī)事件發(fā)生的概率。自學(xué)導(dǎo)讀閱讀教材第188頁(yè)，回答問(wèn)題：1、400個(gè)同學(xué)中，????????（填“一定”或“不一定”）有2個(gè)同學(xué)的生日相同，因?yàn)橐荒曜疃嘤????天，根據(jù)抽屜原理可肯定結(jié)論正確。2、300個(gè)同學(xué)中，????????（填“一定”或“不一定”）有2個(gè)同學(xué)的生日相同，但有2個(gè)同學(xué)的生日相同的可能性比較?????（填“大”或“小”）。3、周老師說(shuō)“我認(rèn)為咱們班50個(gè)同學(xué)中就很可能有2個(gè)同學(xué)的生日相同。”你相信嗎？怎樣來(lái)解決這個(gè)問(wèn)題呢？通過(guò)設(shè)計(jì)方案，用???????????的方法來(lái)估計(jì)50人中有2人生日相同的概率是一種好方法。合作探究探究一：班級(jí)課堂展開(kāi)現(xiàn)場(chǎng)調(diào)查，得到數(shù)據(jù)后探究以下問(wèn)題：（1）、如果50個(gè)同學(xué)中有2人生日相同，能否說(shuō)明50人中有2人生日相同的概率是1？（2）、如果50個(gè)同學(xué)中沒(méi)有2人生日相同，能否說(shuō)明50人中有2人生日相同的概率是0？探究二：每個(gè)同學(xué)課外調(diào)查10個(gè)人的生日，從全班的調(diào)查結(jié)果中隨機(jī)選取50個(gè)被調(diào)查人，看有沒(méi)有2人生日相同。將全班同學(xué)的調(diào)查數(shù)據(jù)集中起來(lái)，設(shè)計(jì)一個(gè)方案，估計(jì)50個(gè)人中有2個(gè)人生日相同的概率生日相同的概率檢測(cè)題1.公交車每隔30分鐘路過(guò)停車點(diǎn)A一次，張華同學(xué)到停車點(diǎn)候車，候車時(shí)間不超過(guò)5分鐘的概率是__________。2.將一質(zhì)量是9kg的小米，任意分成二份，使二份質(zhì)量的比大于或等于2的概率是___