一般过去时中动词的变化规则(课堂PPT).ppt

,.,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,一般过去时动词的变化规则,1,.,什么是一般过去时？,一般过去时表示过去某个时间里发生的,动作或状态。,2,.,所有时态都是通过,动词,变化来表现的。,3,.,规则一,During the summer holiday,I play,ed,ball games with my friends.,I also visit,ed,my grandparents.,I enjoy,ed,my holiday.,what do you find,？,4,.,play-play,ed,visit-visit,ed,enjoy-enjoy,ed,一般情况下，动词词尾加,-ed.,stay-,stay,ed,pick-,pick,ed,watch-,watch,ed,5,.,规则二,During the summer holiday,I lived in Beijing.,liv,e,-live,d,mov,e,-,move,d,tast,e,-,taste,d,6,.,规则二,During the summer holiday,I lived in Beijing.,7,.,规则三,stud,ied,cr,ied,carr,ied,(,运载,),worr,ied,stud,y,cr,y,carr,y,(,运载,),worr,y,(,担心,),8,.,规则三,9,.,go,-,went,buy,-,bought,is/am,-,was,are,-,were,ride,-,rode,have,-,had,do,-,did,can,-,could,find,-found,不规则动词的过去式,10,.,