Module2现在完成时.课件2022-2023学年外研版英语八年级下册

1 现在完成时 The present perfect tense 现在完成时态的用法 2 表示开始于过去并持续到现在的动作或状态。常常与for或since 连用。这种用法中的谓语动词只能是延续性动词。 1 表示过去某时间发生或已经完成的动作对现在造成的影响或结果。 现在完成时态的构成 肯定句：have/has + 过去分词 They have seen the film. 否定句：主语+have/has+not+过去分词+其他. They haven’t seen the film. 一般疑问句：Have/Has+主语+过去分词+其他 ? Have they seen the film? 简略答语: Yes, 主语 + have/has.(肯定) No, 主语 + haven’t/hasn’t.(否定) Yes, they have. /No, they haven’t. 我 Note： 通常情况下，动词的过去分词与动词的过去式形 式相同，但也有一些不规则的变化，需要同学们 记住： become – became – become break – broke – broken come – came – come do – did – done draw – drew – drawn drink – drank – drunk drive – drove – driven 8. eat – ate – eaten 9. be-was, were-been 10. go-went-gone 11. give – gave – given 12. read – read – read 13. take-took-taken 14. send-sent-sent 15. find-found-found 16. have-had-had 17. make-made-made 动词的过去分词与动词的过去式形式相同， 1.一般情况加ed ask---- asked 2.以字母e 结尾的加d close--- closed 3. 以辅音字母+ y结尾的变y为i 加ed . study--- studied , cry , try , carry 4.以重读闭音节结尾,辅元辅, 应先双写末尾的辅音字母再加ed plan--- planned stop --- stopped I have already ________(clean) my shoes. He has just ________(see) the film. Tom hasn’t ________ (come) back yet. I have ever ________(read) the book. Mary has never ________(eat) dumplings. 现在完成时态的时间状语 already（肯定句“已经”）, yet（否定句“还、未”；疑问句“已经”）, just（刚刚）, ever（曾经）, before（以前，曾经）, never（从未）, so far（迄今为止）, recently（最近）, once/twice/three times…（n次） in the past+段时间（过去的…） in the last+段时间（最近的…） till/until（直到） up to now（至今） I has read the book. He have gone to the library. Have you saw the film? He’s just washed his clothes, isn’t he? She has finished her job last week. Have you done your homework already? 改错 10 1. I’ve already had dinner.（改为一般疑问句） _____ you _____ dinner ______？ 2. He has just finished his homework.（改为否定句） He ______ __________ his homework____. 3. Mum’s cooked the dinner. （改为否定句）