2019年春八年级英语下册Unit1PastandpresentPeriod3Grammar课件（新版）牛津版.pptx

1、Period 3 Grammar,课前自主预习,课堂互动探究,Unit 1 past and present,课前自主预习,yet,Period 3 Grammar,past,recently,recent,the changes in Beijing,learn more about,each other,past and present,听说,中国的历史,在过去的一个世纪里,教某人很多,Period 3 Grammar,havent seen each other,seen,recently,Period 3 Grammar,have heard about,plan to see,Per

2、iod 3 Grammar,课堂互动探究,词汇点睛,1 yet adv. 还，仍,观察 My parents havent come back yet.我父母还没回来。,辨析 already与yet,肯定,Period 3 Grammar,拓展 yet 还可用作连词，意为“然而，但是”。,否定句,疑问句,活学活用,12018武威 Is dinner ready? Not_ Aalready Bjust Cyet Dever,C,Period 3 Grammar,观察 Have you seen any films recently, Sandy? 桑迪，你最近看过电影吗？ 探究 recentl

3、y常用于_的句子中。 拓展 recently的形容词形式为_。,2 recently adv. 近来，最近,现在完成时,Period 3 Grammar,recent,22018武威 I havent seen them _ (recent),recently,Period 3 Grammar,教材典句,1Sure, Ive lived here since I was born. 当然，我自出生以来就住在这儿。 2Has the town changed a lot over the years? 在过去的几年里城镇变化很大吗？,语法聚焦,Period 3 Grammar,3It has b

4、ecome impossible for us to see each other as often as before. 对我们来说，像以前那样经常见面已经变得不可能了。 4Amazing changes have taken place in Sunshine Town. 阳光镇发生了令人惊叹的变化。,Period 3 Grammar,语法探究,现在完成时态 1结构：_。 2含义 (1)表示过去已完成，但对现在有_的动作，常与副词before, already, recently, yet, ever, just, never 等连用。如： I have just had lunch. 我

5、刚刚吃过了午饭。 He has had a cup of tea. 他已经喝过一杯茶了。 The boy has already read the book.那个男孩已经看过那本书了。,have/has,动词的过去分词,(一定)影响,Period 3 Grammar,(2)表示从过去 _并可能继续延续下去的动作。其谓语动词常常是_ 动词，且句中常有表示一段时间的时间状语，如 for two years, since last week, so far(迄今为止), in the past two months。如： He has lived in the small town for ten

6、years. 他已经在这个小镇住了十年了。 Tom and Jerry have been good friends since they met at that party. 自从汤姆和杰瑞在那次聚会上相遇，他们就成了好朋友。,某一时间开始一直延续到现在,延续性,Period 3 Grammar,(3)表示一种经历、经验：去过地方；做过事情；经历过事情。如： I have never seen a film in the cinema. 我从未在电影院看过电影。 She has never been to a cinema. 她从未去过电影院。,Period 3 Grammar,3句式：肯定

7、式、否定式和疑问式 (1)肯定式：主语_动词的过去分词其他如： I have finished my homework.我已经完成家庭作业了。 (2)否定式：主语_not动词的过去分词其他如： I have not finished my homework.我还没有完成家庭作业。,have/has,have/has,Period 3 Grammar,(3)一般疑问句：_主语动词的过去分词其他？如： Have you finished your homework？你完成家庭作业了吗？ (4)特殊疑问句：特殊疑问词_主语动词的过去分词其他？如： How long have you taught E

8、nglish？你教英语多长时间了？,Have/Has,have/has,Period 3 Grammar,4动词的过去分词 (1)绝大部分动词的过去分词形式由“动词原形(e)d” 构成。如： Visit visited(访问) waste wasted(浪费) Walk walked(走) move moved(移动) (2)少数不规则动词的过去分词形式需要特别记忆。如： Wear worn(穿) fight fought(搏斗) Lose lost(丢失) put put(放),Period 3 Grammar,1(1)2017镇江 I hearyoure crazy about Roger

9、 Federer. Exactly. He is one of the greatest tennis players in the world and _ 18 grand slams(大满贯) all together. A . achieves Bachieved Chas achieved Dwill achieve,C,Period 3 Grammar,【解析】 (1) 考查动词时态。句意：“我听说你对Roger Federer很狂热。”“确实。他是世界上最伟大的网球运动员之一，已经取得了共计18个大满贯。”用现在完成时强调他到现在为止取得的成就，说明对他狂热的原因。故选C。,(2)

10、2018德阳 I_ to the West Lake four times, but I will go there again this summer. Ahave gone Bhave been CWent Dhad gone (3)2018连云港 Look! Somebody _ the lights. Well, it wasnt me. I didnt do it. Aturns off Bis turning off Cwas turning off Dhas turned off,B,Period 3 Grammar,D,现在完成时的基本用法 1现在完成时表示过去发生或已经完成的

11、动作对现在造成的影响或结果。 (1)表示一个动作在过去某时开始，刚刚结束。如： Amy has just turned on the TV.埃米刚打开电视。 He has already taken the book to the library. 他已经把书带到图书馆去了。 (2)表示过去动作的结果现在仍存在。如： He has become a teacher.他已经成了一名教师。,Period 3 Grammar,2.现在完成时还表示从过去某时开始，持续到现在而且还有可能继续延续下去的动作或状态。它常和表示从过去某一时刻延续到现在(包括现在在内)的时间状语连用，如these days,

12、this week, during the last two weeks, in the past few years, since yesterday, for three hours, until now, so far等。如： He has stayed here for two weeks.他已经在这里待了两周了。,Period 3 Grammar,They have lived here since 2000. 自从2000年他们就住在这里了。 How many English words have you learned so far? 迄今为止你学了多少英文单词？,Period 3 Grammar,2(1) _ you ever _ Han Hong sing live? Of course. A couple of times in different cities. AHave; seen BDid; see CDo; see DAre; seeing (2)2018武汉 Do you still play basketball? Oh, no. I_ it for the past two years. Ahavent played Bdidnt play Cwont play Dhadnt played,A,A,Period 3 Grammar,