人教版必修二Unit 3the internet discovering the useful structure

人教版必修二Unit 3 The Internet Discovering Useful Structure 基础教育精品课 Learning objectives: 1. identify the form of the present perfect passive voice. By the end of the class, you will be able to 2. know how to change the present perfect active voice into present perfect passive voice. 3.apply the present perfect passive voice to practical use. CONTENTS 1 2 3 4 Review Present Perfect Passive Voice Practice Summary PART 01 Review Passive Voice& The Present Perfect BOOK2 UNIT3 THE INTERNET Lead in pay attention to red words Review 被动语态结构 被动语态的基本形式: be done（动词的过去分词） is destoryed are booked were made are known is forbidden be respected passive voice Review The Present Perfect. Review The Present Perfect. have died have loved Review The Present Perfect. 现在完成时的结构 have/ has + done（动词的过去分词） 助动词,无意义 注：主语若是第三人称单数助动词用 has structure The Present Perfect Passive Voive BOOK2 UNIT3 THE INTERNET Part 02 Observation Read the pairs of sentences. Underline and compare the different verb forms. Jan’s life has been greatly improved by the Internet. Much has been written about the wonders of the World Wide Web. The Internet has greatly improved Jan’s life. People have written much about the wonders of the World Wide Web. have/has + V-ed have/has been + v-ed The Present perfect active voice ? meaning talk about something that has been done structure The Present Perfect Passive Voice have/has been done have/has done be done + 1. Much has been written about the wonders of the World Wide Web. 2. People’s lives have been changed by online communities and social networks. 3. Many people have been helped by the club. 4. Jan’s life has been greatly improved by the Internet. Can you underline the present perfect passive voice in the sentences? Present Perfect Passive voice 现在完成时的被动语态的基本结构 肯定式： 否定式： 一般疑问句： 特殊疑问句： 主语 + have/has not been done Have/Has＋主语＋been done．．．？ 疑问词＋have/has＋主语＋been done．．．？ The research has been done successfuly. 主语 + have/has been done The new book has not been published. Has his washing mchine been repaired? Who has been invited? Example: They’ve built a kind of new PC with more functions A kind of new PC has been built with more functions（by them) 原句主语 by的宾语(有时可省略） 宾语 主语 谓语由主动 被动 主语 谓语 宾语 change the sentences active voice passive voice 1. I have downloaded the software to help my phone battery last longer. change the sentences into the present perfect passive voice. 2.Have you confirmed the Wi-Fi password? The software has been downloaded to help my phone battery last longer. Has the Wi-Fi password been confirmed ? 现在完成时的被动语态的用法 The letter has been posted already. Many houses have been built so far. 用法1: 强调过去的动作对现在造成的影响或结果，主语和谓语之间为被动关系，通常与already, yet, just, so far, recently等副词连用 I posted a letter yesterday. workers built a house last month. 现在完成时被动语态 一般过去式 即学即练 1. --Lily,will you go to Jenny’s birthday party this Saturday? --I’m not sure, because I so far. A. have invited B.wasn’t invited C.haven’t been invited D. will be invited 2.Our parent at our school at two o’clock last Monday. A.arrive B.arrived C.will arrive D.have arrived This class (teach)by Mr.Brown for two years I (see) him since we met last year. has been taught 用法2: 表示一个被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与for或since引导的时间状语连用。 have not seen 常与现在完成时连用的时间状语 already 已经(肯定句) yet 已经（否定句或者疑问句） recently/lately 最近 since then 从那时起 ever since 自那以来 ever 曾经 so far 迄今为止 for a long time 很长一段时间 by now 到现在为止 in recent years 在最近几年里 in/during/over the past/last years在过去的几年里 Part 03 Practice BOOK2 UNIT3 THE INTERNET 1. Both learning sites ___________________ (visit) by over 10,000 people since last year. 2. We’ve done a lot of work on it, but we ______ _ (finish) yet. 3. This keyboard ____________________ (not use) for a long time. have been visited I.Fill in the blank have not finished have not been used 1.Up to now, millions of pounds’ worth of damage has caused by the storm last night. 到目前为止，昨晚的风暴已经造成了价值数百万英镑的损失。 2.It’s said that paper money has been used throughout the world for over 1,000 years. 据说，纸币已经在世界各地被使用了超过1000年。 3.Many high buildings are built in our village since 2016. 自2016年以来，我村共建成了许多高楼大厦。 II.True or False has been caused have been built Part 04 Summary BOOK2 UNIT3 THE INTERNET 1 what structure/meaning 1 when 1 how active passive usage 2 usage 1 Summary The Present Perfect Passive Voice Homework find out and underline the Present Perfect Passive Voice in the poem on P30. finish the exercise on P74. Thank You ! Lavf58.20.100 Packed by Bilibili XCoder v2.0.2 $$