Unit1 grammar课件2023-2024学年牛津译林版英语八年级下册

Present Perfect Tense Grammar(1) Unit 1 Past and present 现在完成时 1.When did you have breakfast this morning? Ask some daily questions. 2. When did you move here? 3. How many times have you been to Hong Kong? She had breakfast at 6 o’clock. She has had breakfast. He moved here two years ago. He has lived here for two years. They have been to Hong Kong once. 现在完成时用法 一.表示过去发生或已完成的作对现在造成的影响和结果。 上一页 下一页 主菜单 Where is the food? Eddie has just eaten it. 二.表示从过去某一时刻开始并一直延续到 现在的动作或状态,并且动作或状态仍可能在继续。 上一页 下一页 Mr Chen has lived in Sunshine Town since he was born. 自从Mr Chen出生以来，就一直住在阳光镇。 I have taught English for many years. 我已经教了多年的英语。 现在完成时的用法 主菜单 三.表示某事直到现在发生了多少次. 上一页 下一页 现在完成时用法 主菜单 I have heard the song many times. She has had breakfast. 她吃过早饭了。 They have been to Hong Kong once. He has lived here for two years. 他们去过香港一次。 他已经住这两年了。 总结 用法1：现在完成时表动作发生在过去并对现在造成影响。 （她现在不饿） 用法2：现在完成时表动作发生在过去并一直持续到现在，有可能继续持续下去。 用法3：现在完成时表到现在为止某动作发生了多少次。 现在完成时的构成 助动词have (has）+ 过去分词(done) They have arrived. 主语 + 谓语（动词过去分词） 现在完成时的基本结构 （1）肯定句： I/We/You/They + 助动词have + p.p(过去分词）+其它。 He/She/It + 助动词has + p.p(过去分词）+其它。 e.g. We ______________ Xiao Caiqi. (know） She ______________very popular now. （become) have known has become 现在完成时的基本结构 （2）否定句： e.g. Mr Chen ____________ to any other city yet. ( not move） The snow _____________ yet. ( not melt融化） hasn’t moved I/We/You/They+have not / haven’t +p.p(过去分词）+其它。 He/She/It +has not / hasn’t +p.p(过去分词）+其它。 hasn’t melted (3)一般疑问句及回答 ---Have+I/you/we/they+p.p(过去分词）+其它？ ---Yes, I/you/we/they have. ---No, I/you/we/they haven’t. ---Has +she/he/it+p.p(过去分词） +其它？ ---Yes, she/he/it has. ---No, she/he/it hasn’t. e.g. 1. ---_______ you ever_______ Xiao Caiqi before? (meet） 2.---______ she __________very popular recently?（become) Have met ---No, I haven’t. Has become ---Yes, She has. 活动一(仿照例句看表格造句） Who have done haven’t done We clean the room clean the window see a film cook dinner They S