Unit1 Grammar学案2022-2023学年牛津译林版八年级英语下册

8B Unit1 Grammar 现在完成时 1. 概念：表示从过去持续到现在的动作或状态，或已经完成但对现在有一定影响的动作。 2. 基本结构： (1)肯定句：主语 + have/has + 动词的过去分词 + 其他成分 Zhenjiang ________ _________ a lot recently.(change) (2)否定句：主语 + have/has + not + 动词的过去分词 + 其他成分 I _______ _______ ________ to Beijing so far.(not travel) (3)疑问句：--Have/Has + 主语 + 动词的过去分词 + 其他成分 --Yes,...have/has. --No,...haven’t/hasn’t. --_______ you_______ English before? --No,I_______ never________ English.(learn) 3. 过去分词的变化 （1） 规则动词的过去分词变化 一般动词 +ed finish---_________ 以“e”结尾的动词 +d change---_________ 以“辅音字母+y”结尾的动词 -y+ied carry ---_________ cry---- _________ 重读闭音节结尾，末尾只有一个辅音字母 双写+ed stop--- _________ Plan--- _________ (2) 不规则动词的过去分词变化（参考书P122-123) move______ _______, bring_______ ________, fall________ ________ try ______ _______, grow________ ________, forget_______ ________ mop_______ _______, catch_______ _________,stay________ ________ 4. 时间状语 现在完成时常与________________________________________等时间状语连用。 1． 单项选择 1. --Have you finished all your homework_________? --Not______,but I have finished my maths homework________. A.yet,yet,yet B.yet,yet,already C.already,yet,yet D.already,already,yet 2. Look!The shapes of the clouds________.They were like horses just now. A.change B.are changing C.were changing D.have changed 3.--Have you ever been to Hong Kong? --Yes,_______.It’s really a fun place. A.for two years B.twice C.five days D.in two days 4.Mrs Wang has lived in Haikou_______1992. A.since B.from C.after D.in 5. Mary_______ to see the film because she________ it twice. A.won’t go,saw B.won’t go,will see C.won’t go,has seen D.didn’t go,sees 6.--Hi,I______you for a long time! --I_____in Beijing.I’ve just come back. A.have seen,am B.haven’t seen,shall be C.didn’t see, will be D.haven’t s