Unit 3 第3课时 课本讲解及语法拓展-2022-2023学年七年级英语下册同步精品课堂（牛津上海版）

A visit to Garden City Episode3 牛津上海版 英语 七年级 第二学期 Unit 3 A：高台跳水 Read and match a bus driver grows vegetables a cook trains someone in sport a postman delivers letters a waiter is in charge of a school a farmer cooks food a secretary brings food to people a headmaster types letters and answers the phone a coach drives a bus 2 I’ve got ‘a farmer’. What does a farmer do? A farmer grows vegetables in fields. Play a game 3 4 Job What does he/she do? a cook cooks food for people a waiter a secretary a postman a coach a bus driver a headmaster Find out and write With a classmate, find out what the people below do. brings food types letters and answers the phone delivers letters trains someone in sport drives a bus is in charge of a school 5 A report In pairs, talk about your parents’ jobs and write a report about their jobs. My father is a/an ____________________________. A/An ______________________________________. He has been ____________________________ since _________. He has been _______________________ for __________. My mother ... 6 02 Grammar 三、语法新课讲解 现在完成时 (1)表示过去发生的或已经完成的某一动作对现在造成的影响或结果。如： -Have you had your lunch yet?你吃过午饭了吗？ -Yes, I have. I've just had it. 是的，我刚吃过。（说明现在饱了。） I have lost my pen. 我把钢笔弄丢了。（过去某时丢的，现在还没有找到。） I have already watched the TV play. 我已经看过这部电视剧了。 -Have you found your lost pen yet? 一你找到丢失的钢笔了吗？ -No. I haven't found it yet. 一不，我还没有找到。【友情提示】 already，yet常和现在完成时连用，already用于肯定句，可放在助动词之后、过去分词之前，也可放在句末。yet用在疑问句中意为“已经”，用在否定句中表示“还”，常放在句末。 (2)表示动作或状态在过去已经开始，持续到现在，也许还要持续下去，常和for，since连用，表示持续的动作或状态多为延续性动词。如： We have lived here since 2000. 自从2000年以来我们一直住在这里。（说明一直住在这里也许还会住下去。） (3)现在完成时中经常使用的几个副词：1) just意为“刚刚”，表示动作刚刚结束，常放在助动词与过去分词之间。如：He has just come back from Beijing. 他刚从北京回来。2) ever意为“曾经”，用于疑问句或否定句中，放在助动词与过去分词之间。如： Have you ever been to Shanghai?你去过上海吗？3) never意为“从来没有”，常与before连用，多放在助动词与过去分词之间。如： I have never travelled by plane before. 我以前从来没有乘飞机旅行过。4) before意为“以前”，指过去不确定的某个时间，总是放在句末，不受句型的限制。如： I haven’t heard of it bef