2019中考英语-一般过去时和现在完成时态复习专题 课件(共19张PPT)

（Simple past tense 一般过去时） 1. He has heard the song before. （Present perfect tense 现在完成时） 2. He heard it two years ago. Simple past tense 一般过去时 表示在过去某个时候发生的动作或存在的状态. I went to school by bike this morning. I was at school yesterday afternoon. 一般过去时 结构: am, is, are --- was, were V-ed 用法： three days ago Yesterday Last … a moment ago = just now in the past in 1997 when +过去时句子 一般过去时 时间状语： Let’s do some exercises: It is said that the old church _________ (build) from the year 1845 to 1848. 2. In China, the number of Internet users __________ (be) 55 million in 2002. 3. In1946,UNICEF ___________ (set) up to help children whose lives were changed because of the Second World War. was built was was set Present perfect tense 现在完成时 现在完成时 结构： 助动词have/has+动词的过去分词 用法1： 1. I have already finished my homework. 表示过去发生的某一动作对现在造成的影响或结果． N P F 3. He ___________ (lose) his key , and he can’t get into his house now. has lost 2. I have never seen him before. 现在完成时 用法1： already, yet, just, ever, n