Unit2Amazingnumbers（Writing）课件沪教版英语八年级上册

AmazingAmazingnumbersnumbersUnit2Lesson4Writing英语沪教版八年级上册1.掌握解读折线图的数据和信息的方法以及折线图的绘制方法，绘制折线图，撰写人口变化数据报告。Learningobjectives2.初步形成“用数据说话”的意识;感受全球人口变化对地球环境带来的挑战，树立生态保护意识。重点重点LookandsayWhatgraphtypesdoyouknow?linegraphcolumncharttablepiechartLookandlearnToday’stask:Lookandlearn①②Growingnumbers:

rise(sharply,quickly,slowly),grow,goup,double②Fallingnumbers:fall(sharply,quickly,slowly),drop,godown③Nochange:staythesame,remainthesameYearWorldpopulation:1750-2050Population(billion)③LookandcompleteWangYaoiswritingareportabouttheworldpopulation.Lookatthelinegraphshefoundandhelphercompletethereport.LookandcompleteWorldpopulationThegraphshowsthatthepopulationintheworld(1)______________beforetheyear1800.Duringthesecondhalfofthe1800s,thepopulationbegan(2)____________.In1850,therewereabout(3)___________peopleintheworld.Aboutonehundredyearslater,theworldpopulationreached(4)_____________.Between1950and2000,thepopulationmorethan(5)____________.In2050,therewillbemorethan(6)___________peopleonourplanet.grewslowlytogrowquicklyonebillion2.5billiondoubled9billionLookandanswerLookatthegraphandanswerthefollowingquestions.1.What’sthelinegraphabout?Theworldpopulationfrom1750to2050.2.Whatdoestheverticalaxis(纵轴)standfor?Thepopulation.3.Whatdoesthehorizontalaxis(横轴)standfor?Theyear.4.Whatwasthepopulationin1850?Itwasabout1.2billion.5.Whatwasthepopulationin2000?Itwasabout6billion.Learnmoreexpressions1.说明数据值2.说明数据变化趋势3.说明数据差值Therebe+数字Thenumberof...is/was...Thenumberof....rises/fallsto....数值增加到/减少到Thenumberof...rises/fallsfrom...to...数值从.....增加到/减少到Thenumberof...rises/fallsby...数值增加了/减少了…Learnmoreexpressionsrise/grow/goup

表示上升fall/drop/godown

表示下降riseto/increaseto/goupto

上升到/升至+(上升结果)fallto/decreaseto/godownto

下降到/降至+(下降结果)riseby/increaseby/goupby上升了+(上升幅度)fallby/decreaseby/godownby

下降了+(下降幅度)risefrom...to...

从......升至......fallfrom...to...从......降至......LearnandsummarizeHowtodescribethelinegraph?Let’slearnmore!1.说明图表展示的对象Thetable/chart/diagram/graphshows(that)…该图表显示……Thelinegraphshowstheworldpopulationfrom1750to2050.2.介绍线形图总趋势（从开头到最后，上升还是下降）Aswecansee,from1950to2050,theworldpopulationrosesharply.LearnandsummarizeHowtodescribethelinegraph?Let’slearnmore!

3.比较线形图的各个点的变化趋势（数据差值）①In1750,therewereabout0.8billionpeopleintheworld.②In1800,thenumberrosetoabout1billionandthenincreasedto1.2billionin1850.LearnandsummarizeHowtodescribethelinegraph?Let’slearnmore!

4.比较线形图的各个点的变化趋势（数据差值）①In1900,thepopulationreachedaround1.6billionandthendoubledtoabout2.5billionin1950.②Finally,itshotupto6.1billionin2000andisprojectedto(预计)

reach9billionby2050.ReadandthinkHowhasthepopulationinaparticularcityorprovincechangedovertheyears?Findinformationaboutitandwriteareport.Whichcityorprovincedoyouwanttofocuson?Howhasitspopulationchangedovertheyears?Howhasthepopulationinaparticularcityorprovincechangedovertheyears?Findinformationaboutitandwriteareport.Chooseacityorprovinceyouareinterestedin.Findinformationaboutitspopulationchangeoveraperiodoftimeandmakealinegraph.Findandwrite

Howhasthepopulationinaparticularcityorprovincechangedovertheyears?Findinformationaboutitandwriteareport.

FindandwriteExampleWriteareportabouthowthepopulationchangedovertime.____________________________________________________________________________________________________________________________________________________________________________________________________________Let’swriteTick(√)theboxestocheckyourwriting,andthenreviseit.Iusedalinegraphtorecordandpresentinformation,usingcorrectnumbers.Iprovidedadetaileddescriptionofhowthepopulationofacity/provincechangedovertime.IusedthewordsandexpressionsIlearntinthisunit.Iusedcorrectspelling,grammar,andpunctuation.CheckandreviseShareandevaluateContentProvideadetaileddescriptionofhowthepopulationofacity/provincechangedovertime.Usethewordsandexpressionslearnedinthislesson.Correctgrammarandwordspelling.StructureOrganizethewritingwithaclearstructure.LanguageShareyourwritingwithyourpartnersandgivethemfeedbackforfurtherimprovement.RevisewritingContentProvideadetaileddescriptionofhowthepopulationofacity/provincechangedovertime.Usethewordsandexpressionslearnedinthislesson.Correctgrammarandwordspelling.StructureOrganizethewritingwithaclearstructure.LanguageReviseyourwritingbasedonthefeedbackfromyourpartner.Thinkanddiscuss

Groupdiscussion:Howdoesthepopulationchangeoverrecentyears?Whataretheproblems?Populationhasgrownalotinrecentyears.Morebabiesareborn,andpeoplelivelonger.Problems:Overcrowding:Therearetoomanypeopleinsomeplaces.FewerResources:Thereisn’tenoughfood,water,orspaceforeveryone.Pollution:Morepeoplegeneratemorewasteandpollution.Thinkanddiscuss

Groupdiscussion:CanEarthprovideenoughcleanwaterandhealthyfoodfor8or9billionpeoplefairly?How?Yes,theEarthcanprovideenoughcleanwaterandhealthyfood,butweneedtomanageitbetter.H