七年级英语Theworldofnumbers课件.ppt

Howmanycandiesarethereinmybox Oct 31 Chapter4Theworldofnumbers ListeningandSpeaking Theoilcostsninety eightpointeightyuan Wherecanweseenumbersineverydaylife 98 8 point Yourtemperatureisthirty sevencentigrade 摄氏 degree 度 37 centigradedegree Myhomenumberistwofivesixonesixeightnineseven 25616897 It sninepasttennow 50 Thediscount 折扣 isfiftypercent ahalf WordCompetition单词竞猜 even 百分数 degree 分数 odd 小数的 度数 percentage 奇数的 偶数的 decimal fraction Whichoneoftheseis 1 4 anevennumber apercentage anumbershowingdegree anoddnumber adecimalnumber afraction ANowtryaquizaboutnumbers Listenanddrawacircleroundtherightanswer A 80B 49C 17A 2 66B 26 C 2 6A 75B 75 C 75 A 1 8B 0 75C 33A 56B 65C 66A 90 B 90 C 1 9A 25653881B 25662881C 25652881A 1 8 B 80 C 18 A 5 000B 50 000C 15 000A 30 5 B 13 5 C 35 Couldyouhelphim OneofMr Li sfriendsinShanghaiwillhaveabirthdayparty Mr Liwantstobuyapresentandgoestomeethimbyplane Buthecomesacross 遇到 fourmathematicaldifficulties 数学难题 onthewaytohisfriends house Calculations IntheShoppingMall Mr Liwantstobuyabookandapen Thebookcosts58yuan andthepencosts30yuan Hegivestheseller100yuan Whatisthechange 找零 A 100 58 30 12B 100 58 30 188C 100 58 30 72 Formulas 算式 Goingtotheairport Theflight 航班 forshanghaiwillleavein30minutes andit s7 58 twotoeight now Whenwilltheplaneleave A 7 58 30 7 28B 7 58 30 8 28C 7 58 30 7 88 Formulas 算式 Ontheplane ThereisagirlsittingnexttoMr Liontheplane Mr Liis178cmtall AndthegirltellsMr Lithatheis40cmtallerthanher Thenhowtallisthegirl A 178 40 218B 178 40 138 Formulas 算式 Infriend shouse Thereare12piecesofcakesinMr Li shouse Theyshouldbedividedamong2kids 小孩 and4otherpeople Thenhowmanypiecesofcakeseachpersoncanget 12 2 4 10B 12 2 4 2C 12 2 4 2 Formulas 算式 Blistentotheconversations 对话 andwritedowntheformulas 算式 andanswersbelowthepictures 1 2 3 4 5 6 0 5 3 2 3 5 6 58 30 7 28 163 12 175 12 4 3 8 4 32 50 23 27 Gotoppt23 1 0 5 3 2 3 5 1GIRLI dliketobuythreepencilsandoneballpointpen 圆珠笔 Howmucharethey WOMAN0 5yuanforonepenciland2yuanforoneballpointpen QUESTIONHowmuchshouldthegirlpay Back 2 50 23 27 2WOMANHereis50yuan MANThat stwentythreeyuanforthebook andhereisyourchange 找零 QUESTIONWhatisthechange Back 3 8 4 32 3GIRLHowmanypiecesofchocolatearethereinthebox WOMANEight GIRLI dliketotakefourboxes QUESTIONHowmanypiecesofchocolatedoesthegirlwanttobuy Back 4 163 12 175 4BOYHowtallareyou GIRLIam163cmtall BOYWell Iam12cmtallerthanyou QUESTIONHowtallistheboy Back 5 6 58 30 7 28 5WOMANTheflight 航班 forBeijingwillleavein30minutes MANWhat sthetimenow WOMANIt stwotoseven 6 58 QUESTIONWhenwilltheplaneleave Back 6 12 4 3 6MUMIboughttwelveapples DADWell dividethemamongthefourkids 小孩 QUESTIONHowmanyapplesdoeseachkidget Back Thereisanewgrocery 杂货店 openednearourschool Youwanttohavealookandbuysomething Pleaseworkinpairsandmakeadialogue A CanIhelpyou B Yes I dliketobuy2notebooks A 1 5yuanforone B Sotheycost3yuan Hereis5yuan A Thankyou andhereis2yuanforthechange Forexample Pairwork A CanIhelpyou B Yes I dliketobuy2notebooks A 1 5yuanforone B Sotheycost3yuan Hereis5yuan A Thankyou andhereis2yuanforthechange Forexample anotebook 1 5 apen 10 5 arubber 1 5 acandy 2 aballpointpen 8 abirthdaycard 3 Geniusis1 inspirationand99 perspiration ThomasEdison Amanislikeafractionwhosenumerator 分子 iswhatheisandwhosedenominator 分母 iswhathethinksofhimself Thelargerthedenominator thesmallerthefraction LeoTolstoy 天才等于1 的智慧和99 的汗水 爱迪生 一个人就像一个分数 他的实际才能好比分子 而