《英语语法与写作》课程教学课件（PPT讲稿）语法——谓语之时和体变化（动词的时和体）

2.一般过去时 ·两种变化形式：-ed或不规则变化的动词 ·常用的时间状语：yesterday,last year,3 days ago,the other day,in the past,from then on,then,etc

2. 一般过去时 • 两种变化形式：-ed或不规则变化的动词 • 常用的时间状语：yesterday，last year，3 days ago，the other day，in the past，from then on，then，etc

2.一般过去时 ·※in the past(过去时) She was healthy in the past. ·必in the past few days/years.(现在完成时) Great changes have taken place in the past few years

2. 一般过去时 • ※in the past （过去时） • She was healthy in the past. • ※in the past few days/years.(现在完成时) • Great changes have taken place in the past few years