仁爱九年级上册Unit1现在完成时(共34张PPT)

现在完成时 (专项复习课） 1. I _____already ______(have). breakfast. 2. I ______________(live) in Guangdong since 1996 . have had have lived 3,How long _______you _______(be) in this school? --For three years . 4, Miss Zhou isn’t here . She ____________(go) to the library. have been has gone go went gone be was been 现在完成时 意义: 1.表示过去发生或已经完成的某个动作对现在造成的影响或结果。 例: We have cleaned the classroom. I have had breakfast. 2. 表示过去开始发生的事,一直持续到现在,且仍然在进行.由for 和 since引导时间状语. 例: (1) I have lived here for 3 years. (2) Mr. Green has worked in China since five years ago. 完成 since+一段时间+ago since+一般过去时的从句 现在完成时的句型构成: have /has + 过去分词 主语第三人称单数－has 常见的暗示词: (1) just, already, yet, ever, never, before, for +时间, since, so far, in the past+时间， by 等. (2)for+时间段或since+过去时间点或过去时从句连用。 （3） 与once,twice,three times,several times(几次）等表示重复次数的词语连用。 三个词组的区别： have/has been to have/has gone to have/has been in 曾经去过某地 去了某地，还没回来 去了某地，留在某地 ( )1.We_____ more tha