Unit 3 Discovering Useful Structures 现在完成时被动语态课件-2022-2023学年高中英语人教版（2019）必修第二册

Unit 3 Grammar Present Perfect Passvie Voice What is happening? download update charge Review: use present continuous passive voice How about it? The phone has been used for six hours and 29 minutes. present perfect passive voice An enemy has been slained.一名敌人被击杀。 An ally has been slained.我方队友被击杀。 You have been slained.你被击杀了。 The Present Perfect Passive Voice Talk about something that has been done 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. Task 1: Active __________________ Passive _________________ Verb form have/has +v-ed have/has been +v-ed practice People’s lives (change) by online communities and social work. Many people (help) by online communities and social work. have been changed have been helped Change the sentences into the present perfect passive voice. They’ve built a kind of new PC with more functions. A kind of new PC has been built with more functions. 1. I have downloaded the software to help my phone battery last longer. The software has been downloaded to help my phone battery last longer. 2. An identity card has lost. true/false 3. Have the Wi-Fi password been confirmed? 4. Has the button been press yet to copy the file? 5. Has a comment been made about the online database? been Has pressed 一、将下列句子改成被动语态。 1. They have finished the construction of the new railway lines by now. The construction of the new railway lines has been finished by them by now. 2. We have built a new library and a gymnasium in our school this year. A new library and a gymnasium have been built in our school this year by us. 3. The car factory has produced a great many fine cars since the technological revolution. A great m