七年级英语上册 Unit4 The World of numbers教案 牛津深圳版VIP免费

Unit4TheWorldofNumbersⅠ.Period:The1stperiodⅡ.Teachingcontent:ReadingAinPage50Ⅲ.Teachingtype:readingⅣ.Teachingaim:ØLanguage:Acquiresomeknowledgeabouttheancientnumbers,thesystemofnumbersandcalculatingmachines.Learnsomeexpressionsofcalculation,e.g.oddnumber,evennumber,add,plus,subtract,minus,multiply,times,divide,equals,apercentage.ØAbility:DosomesimplecalculationsØEmotion:Bewarestudentsoftheconcept:allsubjectsarecloselyrelated.Weshouldnotfavouroneorsomesubjectsandneglectanotherorothers.Ifyoustudyonesubjectwell,itwillbehelpfulforyoutostudyothersubjects.Ⅴ.Teachingtool:multi-mediaⅥ.DifficultandimportantpointsⅦ.Teachingprocedure:1.Greetings(1min)2.Lead-in(Raisesomequestions)(5mins)T:DoyouknowwhatsubjectIwillteachtoday?English?Chinese?Ormath?S(predicted):Englsh.T:Areyousure?Iamafriadnot.I’dliketoteachyoumathtoday.Areyougoodatmath?Let’sdosomequizzestoseehowwellyourmathis.Q1:Howmanyboysarethereinourclass?S(predicted):Thirteen.(Theteacherwritesdownthenumberontheblackboard)Q2:Howmanygirlsarethereinourclass?S(predicted):Twelve.(Theteacherwritesdownthenumberontheblackboard)Q3:Howmanystudentsarethereinourclass?S(predicted):Twenty-five.(Theteacherwritesdownthenumberontheblackboard)Q4:Howdoyouknow?Suggestedanswer:Addthirteenandtwelve.Wegetfifteen.Thirteenplustwelveequalsfifteen.Soourclassconsistsofthirteenboysandtwelvegirls.Q5:Wehavefourclassesinourgrade.Ifeveryclasshastwenty-fivestudents,howmanystudentsarethereinourgrade?Suggestedanswer:Onehundred.Q6:Doyouknowwhoinventedthesenumbers?TheArabiansortheIndians?Suggestedanswer:TheIndians.Q7:Whatmachinescanweusetocalculatenumbers?Suggestedanswers:abacus,electroniccalculator,computer3.Learnsomenewwordsandexpressions.(interwovenwiththeaboveprocess)(10mins)(1)“add…and…”,“…plus…equals…”,“consistof”:Addthirteenandtwelve.Wegetfifteen.Thirteenplustwelveequalsfifteen.Soourclassconsistsofthirteenboysandtwelvegirls.(2)“odd”,“even”:Thirteenisanoddnumber.Twelveisanevennumber.(3)“multiply…by…”.“…times…equals…”,“nearly”:Multiplytwenty-fivebyfour.Wegetonehundred.Twenty-fivetimesfourequalsonehundred.T:Infact,wehaveninty-ninestudentsinourgrade.Soit’snearlyonehunderd.(4)“invent”,“invention”(5)“calculate”,“calculator”(showapictureofelectroniccalculator)(6)“abacus”,“bead”,“wire”,“bottom”(showapictureofabacus)4.Askthestudentstolookatthescreenandreadtheabovenewwordsandexpressionsaloud.(1min)5.DoExerciseA1(guidethestudentstounderstandtherequirementsfirst)(2mins)6.ReadingØPre-reading(5mins)AskthestudentstoreadthequestionsinPage51.ØReading(10mins)ReadthetextinPage50andanswerthequestionsinPage51.ØAfterreading(4mins)ChecktheanswerinPage51Askthestudents:WhatistheanswerinLine9,Page50.7.Summingup(1min)8.Homework(1min)