初二课本课件第5单元.ppt

The present perfect tense 动词过去分词 一、规则动词的过去分词的构成及其读音与动词的过去式相同 1 直接在动词词尾加ed构成 例如：call called called 2 以e结尾的直接加d构成 例如：agree agreed agreed live lived lived 3 以元音字母加y结尾的直接加ed构成： 例如：play played played (enjoy ,stay) 4 以辅音字母加y结尾的，把y变i为再加ed构成： 例如：study studied studied 5 以重读闭音节结尾的末尾只有一个辅音字母的，应 先双写辅音字母，再加ed构成： 例如： drop dropped dropped stop stopped stopped 　 prefer preferred preferred travel travelled travelled + have has + ed + not Have Has + ed + + Ⅰ. How to form? Ⅱ. How to use? 1.动作发生在过去,但对现在产生影响 Eg. Thank you for inviting me, but I have seen the film. (Now I know about the film, so I don’t want to see it again.) –Why not sit down and have some bread? --I’d love to, but I have had breakfast. (Now I am full, so I don’t need any bread.) 2.表示过去已经开始而且持续到现在的动作或状态 Eg. I have lived in Shenzhen for ten years. He has learned English since he was five . Practice This is a soldier’s room. It is in a mess. The captain is giving him some orders about it. Read the orders. have swept have not made have washed have hung up have fixed have emptied have painted have not mended have got rid of Later, the soldier reports to the captain. Look at the picture below and complete the sentences with have or have not and suitable verbs. 现在完成时态常与一些时间状语连用：yet, already, just, before, ever, never, recently, so far, till/until, up to now, in the past few years etc. Already yet already 用于肯定句，yet常用于否定句和疑问句。如： I have seen the film already. He hasn’t come back from Shanghai yet. Has he come back yet? Practice B (P64) Hello, Eric. We will definitely come to see you next month. I am glad to hear it. (1) Have you got (get) your plane tickets (2) yet? I (3) ______ ______ ______ (g