六年级下册英语同步拓展课件-Module1 Unit 2 At the airport 现在完成时 牛津上海版（一起） (共13张PPT)

What has happened to ... ? 提示词：Winnie, honey, sweet 提示词：Sakuragi Hanamichi，refuse Key: Winnie has just eaten some honey. So sweet! Key: Sakuragi Hanamichi has just been refused by his girlfriend. 1 What has happened to ... ? 提示词：lottery Key: She has just won a lottery. 提示词：lose his job，sad Key: He has lost his job, so he is very sad. 2 现在完成式 的构成 肯定式 否定式 一般疑问式 主语＋have/has ＋过去分词＋其它 I've already finished my homework. 主语＋have/has＋not＋过去分词＋其它 I haven't finished my homework yet. Have/Has ＋主语＋过去分词＋其它 ？ —Have you finished your homework ? —Yes, I have. 3 规则 动词 1 2 3 4 一般情况→词尾+ed work→worked →worked 以不发音字母e结尾→词尾+d live→lived →lived 以“辅音字母+y”结尾→变y为i，再加-ed study→studied →studied 以重读闭音节结尾，且末尾只有一个辅音字母→双写该辅音字母+ed stop→stopped →stopped 动词的过去式过去分词变化规则 4 常考不规则动词的过去式过去分词 ABC型 ABB型 AAB型 burst burst burst hurt hurt hurt let let let beat beat beaten become became become run ran run bring brought brought buy bought bought begin began begun blow blew blown 记忆单词我最棒！ ABA型 AAA型 5 现在完成时的用法 1.表影响 或结果 和already, yet, just等连用 2.表持续 与since、recently、lately、 for+一段时间、so far，in the past few years等连用，要和持续性动词连用。 3.表经验 常和never, ever, once, three times, before, ever since, recently等连用 My daughter has just gone out. They have been away for two years. I have never been to Beijing before. 6 ◆ yet 意为“已经”、“还”. —Has he found his watch yet? —No, not yet. already yet just before ◆ already意为“已经” I've already read this book.  现在完成时用法 知识拓展1 ◆ just意为“刚刚” He has just come back from school. ◆ before意为“以前” Have you been to Hainan before? 7 ever 意为“曾经” Have you ever been to Hong Kong? never 意为“从不” I have never travelled by plane before. 现在完成时用法 知识拓展2 8 1 2 3 4 Fast and effective creation of your presentation have been to, have gone to have been in have been to 表示“去了已回” have been in 表示“已在该地（待了多久）” have gone to 表示“去了未回” 9 1. 在完成时的用法一：表示影响或结果。常与already，yet，just，before连用。 二：表示继续。常和since、recently、lately、fo