1、一般过去时 VS 现在完成时青岛53中 赵依萍I have already cleaned the blackboard.(黑板现在已经干净了)I cleaned the blackboard yesterday.(黑板现在不一定是干净的)一般过去时只强调动作发生在过去，与现在没有任何联系。现在完成时则是强调过去发生的动作对现在造成的影响或结果。 一般过去时：yesterday, last week, ago, in1980, just now, in the past 现在完成时： already, yet, ever, never, just, before, twice(表次数)，rec
2、ently，(ever) since, for+时间段Key words锁定关键词 快速做题 1. I _ (join) the book club last month and I _ (read) five books already. 2. - _ he _ (plant) the apple trees? - No, he hasnt. - When _ he _ (plant) them? - Tomorrow, I think. He _ now _ (mend) his car. 3. - _ you ever _ (drive) a car? - Yes, I have. -
3、When _ you first _ (drive) a car? - Five years ago. 4. - Tom, _ you _ (finish) the fiction yet? Yes. I _ (finish) the fiction just now. 5. _ you _ (visit) the Palace museum before? joined have readHas plantedwill plantis mendingHave drivendid drivehave finishedfinishedHave visitedChallenge1. I wont
4、go to see the film because I _my ticket.A.lost B. have lost分析：我把电影票弄丢了所以不能去看电影了，对现在造成了影响，所以用现在完成时。2. Sorry, Peter. I _ I was in the way.A. didnt realize B. havent realized分析：不好意思，Peter. 我刚才没有意识到我挡路了，只是刚才没有意识到。如果选B的话，那就意味着现在仍然没有意识到，根据语境是错误的，所以选didnt realize.Summary一般过去时 现在完成时用法关键词一般过去时只强调动作发生在过去，与现在没有任何联系。现在完成时则是强调过去发生的动作对现在造成的影响。yesterday, last week, ago,in1980, just now, in the pastalready, yet, ever, never, just, before,twice(表次数)，recently，since, for+时间段Thank you
