人教版新目标英语八年级下册Unit6HowlonghaveyoubeencollectingshellsSectionA2.ppt课件

Unit 6 How long have you been collecting shells?,Section A Period Two,Objectives,To learn to talk about how long you have been doing things. 学会谈论你做事情有多久了。 To learn to use present perfect progressive tense. 学会运用现在完成进行时态。 To learn to use simple past tense. 学会运用一般过去时态。 To learn to use present progressive tense. 学会运用现在进行时态。,Read the explanation and speak out the word it explains.,to collect money, support ect so that you can use it to help people,a number of people or things that is more than a few, but not a lot,v. 筹集; 筹募,adj. 几个的; 数个的,raise,several,Click to it.,3a,Alison,5 hours,Sam,4 hours,Lu Ning,4 hours,Li Chen,1 hour,Read the passage and then complete the table. (3a),Read and answer.,Why are students skating? 2. How much does each student raise for charity for every hour they skate? 3. How long has the skating marathon been going?,To raise money for charity.,Ten yuan.,For five hours.,4. Who was the first one to start? 5. Who was the last one?,Alison.,Li Chen.,Its now 2 pm. Write the Students names from 3a on the time line. (3b),Alison,Li Chen,Lu Ning,Sam,Its now 2 pm. Write the Students names from 3a on the time line. (3b),Alison,Sam,Lu Ning,Li Chen,Interview your classmates. Ask them what sports they play and fill in the chart.,Group work,A: Ye Lan, what sport do you play? B: Tennis. A: When did you start? B: When I was eleven. A: So how long have you been playing? B: Three and a half years.,Example:,A: Bill, what sport do you play? B: Soccer. A: When did you start? B: When I was ten. A: So how long have you been playing? B: Four and a half years.,Language points,1. Im talking to you from the Hilltop School Skating Marathon. 我正在Hilltop学校的滑冰马拉松为您报道。 from此处指电视直播的发出地点。,2. Students are skating to raise money for charity. raise vt. 举起,抬起; 养育,饲养; 提高,提升; 筹集,筹募 rise vi. 起身, (太阳、月亮等)升起 raise ones hand 举手 raise ones hat to sb. 向某人举帽致敬 raise a child 养育孩子 raise animals 饲养动物 raise ones voice 提高嗓音 raise salaries 增加薪水 raise funds 筹集资金 raise money 筹钱, 筹款,3.For every hour they skate, each student raises ten yuan for charity. 每滑一小时,每个学生为慈善机构筹集10元钱。 every, each 都表“每一” every 指大家具有的共性; 等于all表示全体齐全,一个不缺; 还可表每隔(一段时间/距离) each 强调每个人或事物有着各自互不相同的个性或差异性,例如： Every student is here. 学生都到齐了。 Every two weeks he goes to visit his friends in the town. 他每隔一周去看一次他在城镇的朋友。 Each person has his own advantages. 每个人都有他的优势 (长处)。 Each story has an interesting name. 每个故事都有一个有趣的名字。,4. Alison was the first one to start, and has been skating for the whole five hours. Alison是第一个开始滑的,并且已滑了足足5个小时。 注: 序数词前必须用定冠词the, 后接名词或代词。句中 不定式短语“to start”作后置定语修饰代词one, one指代 滑冰的人。 whole adj. “整个的,完整的”,前常加“the”或物主代词。 eg. I want to get to know the whole story. He puts his whole life on education.,5. So how long have you been playing? Three and a half years. 【据意填词】 They have been working in the factory for _ (三个半月). 【用法透析】 表示“（ 时间）几个半”有两种方式： “基数词 + and + a half + 复数名词”； “基数词 + 名词 + and + a half”。,three and a half months / three months and a half,如：two and a half hours / two hours and a half （两个半小时） one and a half years / one year and a half （一年半）,Grammar,现在完成进行时 表示从过去开始一直持续到现在的动作, 这个动作可能刚结束,也可能还要继续下去, 常与for two hours, since 1998, all this morning, all the time, all ones life, the whole day, these days 等表示一段时间的状语连用。 for + 时间段 since +时间点,1998/ last week/ 6:00am twelve years ago he came here I was ten years old,注意: for表示时间的持续,后跟时间段。表示一 段时间,多与带数词的名词连用,谓语需用 延续性动词。 since表示“自从过去某一时间点以来”, 后 面接时间点,强调动作或状态一直延续到 现在, since后可接表时间的名词或名词短 语,也可接一个时间状语从句。,2. 现在完成进行时的构成: have / has been doing (现在分词) 否定形式为:have / has not been + doing 一般疑问句构成 Have/Has+ sb.+ been+ doing sth.? 特殊疑问句形式(询问持续时间长短): How long+ have/has+ sb.+ been+ doing sth.?,例: 1) I have been cleaning the room all this morning. 我今天一上午都在打扫房间。 2) Ive been studying English since I was 4 years old. 自从4岁起我就一直学英语。 3) Theyve been waiting for you since they came here. 他们从来这儿之后一直在等你。 4) He has been living in the street for about 20 years. 他一直在这条街住了近20年了。,5) Have you been talking with him on the phone since 6:00 p.m.? 你六点起就一直在给他讲电话？ 6) How long has it been raining? 雨下多久了？,7)What book have you been reading recently? 最近你在看什么书？ 8)I havent been seeing a film for a long time. 我好长时间没看电影了。,3. 一般过去时、现在完成进行时和现 在完成时的区别： How long did you skate? (一般过去时) How long have you been skating? (现在完成进行时) How long have you been here? (现在完成时),注意这三个时态语意上的差异。 : 1) 一般过去时表示在过去某个时间发生的动作或存在 的状态, 该动作已结束, 不强调同现在的关系。 2) 而现在完成进行时表示动作从过去开始发生一直持 续进行(到现在), 可能仍在进行, 也可能停止了一会儿。,3) 现在完成时强调的是: 表示过去发生或已经完成的动作对现在造成的影响 或结果。 过去某一时间开始并一直持续到现在(包括“现在”在 内) 的动作或状态, 可以和表示延续的时间状语连用。,课时重点回顾,Review,the Hilltop School Skating Marathon raise money for charity several skaters the first one to start the whole five hours three and a half years,山顶学校马拉松比赛 为慈善事业募钱 几个滑冰者 第一个开始的人 整整五个小时 三年半,1. Mr Green_ in China for five years. A. lived B. has been living C. lives D. is going to live 2. - is the meeting going to last? - About twenty minutes. A. How far B. How soon C. How long D. How often 3. Hes been collecting shells _ he was ten years old. A. when B. while C. and D. since,Choose the best answer.,4. I have been skating_ two hours ago. A. in B. at C. for D. since 5. If I_ enough money, I_ a hospital for SARS patients. A. will have, build B. will have, will build C. have, will build D. have, build,选择括号内适当的词语填空。 _(How long / How far) has your brother been playing tennis? 2. Wen Li is too shy to speak in front of the _(all / whole) class. 3. Liz has been studying medicine _ (since / for) three years. 4. _(Each / Every) of the students has an English-Chinese dictionary. 5. Shen Xue and Zhao Hongdao are good _ (skates / skaters).,Translate and write them down.,1. 为了给慈善事业筹款,学生们正在溜冰。 2.他们每滑一小时,每个学生就为慈善募集10元钱。,Students are skating _ money _ .,_ every hour they skate, _ student _ ten yuan for charity.,to raise,for charity,For,each,raises,3.现在滑冰马拉松比赛已经进行五个小时了，有几个滑冰者还在滑 4.艾利森是第一个开始滑的，并且已滑了足足五个小时。,The skating marathon _ for five hours now, and _ are still skating.,Alison was the first one _ and _ for _ five hours.,to start,has been skating,the whole,has been going,several skaters,根据例句及所给提示词语造句。 Example 1: I, run, in the park, half an hour I have been running in the park for half an hour. he, learn, English, two years 2. they, feel, sick, Tuesday,He has been learning English for two years.,Th