牛津深圳版英语八年级上册 全单元课件 Unit 6（4份打包）

Unit 6 Grammar 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 e.g. like liked liked 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 type Original(原型) p.t.（过去式） P.P（过去分词） AAA型 cost cost cost read read read put put put AAB beatzxxk beat beaten ABA ( be)come ( be)came ( be)come run ran run ABB get got got hang hung hung ABC fall fell fallen sing sang sung begin began begun drink drank drunk 背诵表格 hurt hurt→hurt →hurt buy buy →bought →bought keep keep →kept →kept have/has have/has →had →had hide hide →hid →hidden see see →saw →seen know know →knew →known hear hear →heard →heard sit sit →sat →sat think think →thought →thought He has hurt his foot. hurt run across /zebra crossing. He has run across the zebra crossing. He has caught a mouse. catchzxxk He has already lifted the earth. He has read a book. play the piano She has played the piano. zxxk we/make two cakes We have made two cakes. Transformation of sentences I have finished. 否定句 I have not finished. =I’ve not finished. = I haven’t finished. 一般疑问句 Have you finished? 肯定/否定回答 Yes, I have. No, I haven’t. She has played the piano. 否定句 She has not played the piano. =She’s not played the piano. =She hasn’t played the piano. 一般疑问句 Has she played the piano? 肯定/否定回答 Yes, she has. No, she hasn’t. 就划线部分提问 What has she done? 1.现在完成时态常与一些时间状语连用，请写出中文意思。 yet还，仍 already已经 just只是 before之前 ever曾 never 从不 recently最近 so far 迄今为止 till/until直到 up to now直到现在