初中八年级英语课件辨析现在完成时和一般过去时的区别

辨析现在完成时和一般过去时的区别难点名称：正确区分现在完成时和一般过去时1参赛教师：李丽华时间：2020年8月八年级下册Unit8目录CONTENTS2导入知识讲解课堂练习小结导入现在完成时表示过去发生的事情对现在造成的影响或结果。其结构为have/has+过去分词一般过去时表示过去某一时候或某一段时间所发生了的事情或存在的状态。IhavebeentoHainanlastyear.XIhavebeentoHainan.√Ihavemadesomedeliciousfoodformom.Imadesomefood..Momcanenjoyitnow.pastnow现在完成时表示过去发生的事情对现在造成的影响或结果。活动与探究（温馨提示：规范操作、注意安全）知识讲解Yes,Idid./No,Ididn’t.难点突破Yes,Ihave./No,Ihaven't.Didyoutakeyourtemperatureyesterday?Haveyoualready

takenyourtemperatureyet?Haveyouever

donenucleicacidtesting(核酸检测）yet?Yes,Ihave./No,Ihaven't.Didyoudonucleicacidtestinglastweek?Yes,Idid./No,Ididn’t.Haveyouever

seenadoctorornurseinprotectiveclothing(防护服）yet？Yes,Ihave.Isawmanydoctorsandnurseslikethisin2020.Haveyouever

seenmanypeoplearoundyourneighborhoodsinceJuly17th,2020?No,Ihaven’t.Mostpeoplestayedathome.Yes,Westayedathometostopthespreadoftheplague(避免疫情的扩散）.Haveyoueverseenvolunteersaroundyourneighborhoodyet?Yes,Ihave.Theywereinprotectiveclothing(穿防护服）insummer.Althoughtheweatherwashot,theyworeprotectiveclothing,andtheyhelpedussomuch.课堂练习11难点巩固Pleaseremember:

Aftertheoutbreak(疫情),we

(take)ourtemperatureseveraltimesaday.We

(do)severaltimesnucleicacidtesting(核酸检测）.We

(stay)athomeand

(go)outless.Whenwe

(are)inpublic,we

(wear)masks(口罩）.Weshoulddothesethings.tookdidstayedwereworewent

WeknowChinesearethehappiestpeopleintheworld.BecauseI

(see)manydoctorsandnursesleavetheirhome,justwantedtohelpmorepeopleinneed.I

(see)manyvolunteershelpussinceJuly16,2020.China

(do)alotforitspeople,includingfreetreatmentforCOVID-19(治疗新冠肺炎),freedrugsforepidemicprevention(药品防疫),freemasksandfreenucleicacidtesting(核酸检测).Thankthemotherland(祖国),Iwillstudyhard,helpthemotherlandtoachievetheChinesedreamassoonaspossible(早日实现中国梦）.haveseenhaveseenhasdone【课堂小结】小结综合提升一般过去时现在完成时Ihavevisitedmygrandparentsyesterday.×Hehasfinishedhisworktwodaysago.×时间状语不同yesterday,lastweek,...ago,justnow,When....?already,yet,ever