最新小数乘法例9-----PPT课件PPT.ppt 58页

'小数乘法例9-----PPT 一、情境引入这是生活中常见的一类问题。 二、探索新知（三）回顾与反思78.51011.51314.51617.5答:行驶6.3km需要付13元。你是怎样解决的？能完成下面的出租车价格表吗？ 三、知识应用2.5×11＝27.5（元）1.某市自来水公司为鼓励节约用水，采取按月分段计费的方法收取水费。12吨以内的每吨2.5元，超过12吨的部分，每吨3.8元。（1）小云家上个月的用水量为11吨，应缴水费多少元？小云家的用水量没有超过12吨，应按每吨2.5元计算。 三、知识应用2.5×12＝30（元）3.8×5＝19（元）30＋19＝49（元）1.某市自来水公司为鼓励节约用水，采取按月分段计费的方法收取水费。12吨以内的每吨2.5元，超过12吨的部分，每吨3.8元。（2）小可家上个月的用水量为17吨，应缴水费多少元？小可家的用水量超过了12吨，12吨按每吨2.5元计算，剩下5吨按每吨3.8元计算。 三、知识应用27.5＋2.5×30＝27.5＋75＝102.5（元）2.五（1）班35名师生照合影。每人一张照片，一共需付多少钱？我的方法是： 四、布置作业作业：第18页练习四，第8题。 谢谢大家再见！ SectionB2a~3b basicadj.基本的；基础的exchangen.&v.交换gooutofone’sway特地；格外努力make...feelathome使（某人）感到宾至如归teenageadj.十几岁的；青少年的 granddaughtern.（外）孙女behavev.表现；举止exceptprep.除……之外conj.除了；只是elbown.肘；胳膊suggestionn.建议NEXT 1.behavev.表现；举止作此义讲时是不及物动词。名词为behavior。Ifyoubehavelikethat,you’llgetyourselfdisliked.如果你像那样做，你会让人厌恶的。BACK请同学们在课后参照《巴蜀英才•英语》P97的内容进行复习。 2.exceptprep.除……之外conj.除了；只是except强调“……不包括在内”，意味着从整体中减去部分，一般表示同类之间的关系，常与all，every,no,none,nothing等含有整体肯定或否定意义的词连用请同学们在课后参照《巴蜀英才•英语》P97的内容进行复习。 EveryoneexceptTomandJohnwastherewhenthemeetingbegan.会议开始时，除汤姆和约翰以外的所有人都到场了。（主语为Everyone，故谓语仍用单数形式。 Nooneexcepttwostudentswaslateforthemeetingyesterday.昨天的会议没有人迟到，除了两个学生以外。（主语为Noone,故谓语仍用单数形式。）BACK 3.suggestionn.建议【构词】本词是由动词suggest加后缀-tion构成的名词。类似构成的名词还有：invention,education,expression等。Doyouhaveanygoodsuggestionsforme?你有什么好建议给我吗？BACK请同学们在课后参照《巴蜀英才•英语》P97的内容进行复习。 2aWhatdoyouknowaboutcustomsinforeigncountries?Whatdoyouthinkisthebiggestchallengewhenvisitingaforeigncountry? e.g.MycousinwenttoAmerica,andshesaidthatlearningbasictablemannerswasherbiggestchallenge.Sheneverknowwhatshewassupposedtodoatthedinnertable. 2bReadtheletterandanswerthequestion. DearLaura,Thanksforyourmessage.Yes,I’mhavingagreattimeonmystudentexchangeprograminFrance.IwasabitnervousbeforeIarrivehere,buttherewasnoreasontobe.Myhostfamilyisreallynice.Theygooutoftheirwaytomakemefeelathome. ThegrandmotherknowsthatImissChinesefoodalot.SosheactuallylearnedhowtomakeChinesefood!Shealsohasateenagegranddaughteraboutmyagewhoisreallykind.ShealwaystalkstomeinFrenchtohelpmepractice. Youwouldn’tbelievehowquicklymyFrenchhasimprovedbecauseofthat.I’mverycomfortablespeakingFrenchnow.AlthoughIstillmakelotsofmistakes,itdoesn’tworrymeasitusedto. Mybiggestchallengeislearninghowtobehaveatthedinnertable.Asyoucanimagine,thingsareverydifferentfromthewaytheyareathome.Forexample,you’renotsupposedtoputyourbreadonyourplate.You’resupposedtoputitonthetable! Ithoughtthatwasprettystrangeatfirst,butnowI’musedtoit.Anotherexampleisthatyou’renotsupposedtoeatanythingwithyourhandsexceptbread,notevenfruit.Youhavetocutitupandeatitwithafork.Anotherthingisthatitisimpolitetosayyou’refull. Ifyoudon’twantanymorefood,youshouldjustsay,“Thatwasdelicious”.Also,you’renotsupposedtoputyourelbowsonthetable.IhavetosaythatIfinditdifficulttoremembereverything,butI’mgraduallygettingusedtoit.Idon’tfindFrenchcustomssostrangeanymore. I’llwriteagainsoonandtellyoumoreaboutmylifeinFrance.hopeyou’rehavingagoodschoolyear.Yours,LinYue 1.WhyisLinYueinFrance?SheisonherstudentexchangeprograminFrance. 2.Doessheenjoystayingwithherhostfamily?Howdoyouknow?Yes,shedoes.Herhostfamilygooutoftheirwaytomakeherfeelathome. 3.HowdoesshefeelaboutmakingmistakeswhenshespeaksFrench?Althoughshestillmakelotsofmistakes,itdoesn’tworryherasitusedto. 4.Whatisthebiggestchallengesheisfacing?Herbiggestchallengeislearninghowtobehaveatthedinnertable. 2cReadthepassageagainandreplacetheunderlinedwordswiththephrasesinthebox. MakingmistakesinFrenchusedtomakeLinYuenervous.MakingmistakesinFrenchusedtoworryLinYue. ItwasquitehardforhertofeelgoodaboutspeakingFrench.ItwasquitehardforhertobecomfortablespeakingFrench. 3.ThehostfamilytriedveryhardtohelpLinYue.ThehostfamilywentoutoftheirwaytohelpLinYue. 4.LinYuehasslowlylearnedhowtobelikeherFrenchfriends.LinYuehasgraduallygottenusedtobeinglikeherFrenchfriends. 2dReviewthepassageandmakenotesaboutFrenchcustomsinthechart. DosYou’reexpectedtoputyourbreadonthetable!You’reexpectedtoeatfruitwithafork.You’reexpectedtosay,“Thatwasdelicious”ifdon’twantanymorefood. Don’tsYou’renotsupposedtoputyourbreadonyourplate.You’renotsupposedtoeatanythingwithyourhandsexceptbread.You’renotsupposedtosayyouarefulldelicious”ifdon’twantanymorefood. ComparethetablemannersinFranceandchinainyourgroup.Howaretheythesameordifferent?Makealist.2e e.g.InFrance,peopleputtheirbreadonthetable.ButinChina,wealwaysputourfoodonaplateorinabowl.Weneverputfoodonthetable. 3aYourpenpaliscomingtoChinaonanexchangeprogram.He/SheisaskingyouaboutChinesecustomsandwhathe/sheissupposedtodoornot.Makenotesinthechart. TablemannersIt’spolitetomakenonoisewhenyouareeating.It’simpolitetostarteatingfirstifthereareolderpeopleatthetable. HouserulesYou’resupposedtorespectthehost’scustom.You’renotsupposedtovisitafriend’shouseaftermakingacall. GoingoutwithpeopleIt’spolitetomeetthemontime.It’simpolitetokeepthemwaitingforalongtime. 3bWritealettertoyourpenpaltogivehim/heradviceandsuggestionsonhowtobehaveproperlyinChina. Dear________,YoumustbeexcitedaboutcomingtoChinasoon.LetmegiveyousomesuggestionsandadviceaboutChinesecustoms.Whenyou’reeatingatthetable,it’simpoliteto______________________________________________. Inourhouse,you’resupposedto___________________________________.Whenyougooutwithpeople,youshould__________________________________________________________.Haveasafetrip,andIlookforwardtomeetingyousoon!Bestwishes,__________ Homework请同学们完成《巴蜀英才•英语》九年级上，P97-P98第四课时的相应练习。 BACK8.becomfortabledoingsth.很自如/舒适地做某事（=feelgoodaboutdoingsth.）请同学们在课后参照《巴蜀英才•英语》P97的内容进行复习。 BACKgetusedtodoingsth.习惯于做某事（表适应过程，而beusedtodoingsth.表状态）请同学们在课后参照《巴蜀英才•英语》P98的内容进行复习。 Letmegiveyousomesugges-tionsandadviceaboutChinesecustoms.让我给你一些关于中国习俗的建议和忠告吧。请同学们在课后参照《巴蜀英才•英语》P98的内容进行复习。 【辨析】advice和suggestion（1）advice指的是一种具有较强实用性和可操作性的“建议”（通常译为“劝告；忠告”），它是针对某人的某一具体情况（或特定情况）所给出的最佳行动方案。为不可数名词。 Thelawyergavemesomehelpfuladvice.律师给我提供了一些有用的建议。 （2）suggestion仅是提出一个供人参考的想法和计划。为可数名词。I’llagreetoyoursuggestionifyoulowertheprice.如果你们降低价格，我就同意你们的建议。BACK'