现在完成时的被.ppt

*“碰壁点拨式”教学法是素质教育的一种方式，这种教学法的基本模式是：编拟题组—练中碰壁—讲评点拨—巩固消化。该教学法以问题为载体，以训练为主线，目标导控，问题教学，先练后讲，碰壁点拨，反馈矫正。增强了学习的方向性、选择性及目标性，使学生在克服困难消除障碍的过程中发展自己的观察力、想象力和思维能力，使他们的智慧升华，创造思维得以开发。*ThePresentPerfectPassiveVoiceUnit3Grammar1.OvertimeIhavebeenchangedquitealot.2.FirstasaPC(personalcomputer)andthenasalaptop,Ihavebeenusedinofficesandhomessincethe1970s.3.Overtimemymemoryhasdevelopedsomuchthat,likeanelephant,IneverforgetanythingIhavebeentold!Sentencesfromthisunit:applicationshavebeenfoundforme.4.Sincethe1970smanynewusedtomakemobilephonesaswellashelpwithmedicaloperations.5.IhavealsobeenputintorobotsandrocketsandsenttoexploretheMoonandMars.6.Ihaveevenbeenputintospace4.OvertimeI________________quitealot.5.FirstasaPC(personalcomputer)andthenasalaptop,I_____________inofficesandhomessincethe1970s.havebeenchangedhavebeenusedgoReady?6.Overtimemymemoryhasdevelopedsomuchthat,likeanelephant,IneverforgetanythingI_____________!7.Sincethe1970smanynewapplications______________forme.8.I_____also________intorobotsand____tomakemobilephonesaswellashelpwithmedicaloperations.9.I____even________intospacerocketsand____toexploretheMoonandMars.havebeentoldhavebeenfoundhavebeenputusedhavebeenputsentyears.A.usedB.hasbeenusedC.hasusedD.isusing1.Papermoney______foroverathousand01—No.It’sstillonthedesk.A.Has;givenB.Will;begivenC.Was;givenD.Has;beengiven2.—______theletter______toMr.Black?023.Greatchanges______inmyhometownandalotoffactories______.A.havetakenplace;havebeensetupB.havebeentakenplace;arebeingset