Unit 3 The Internet Discovering Useful Structures 课件-2025-2026学年高中英语人教版必修第二册

B2U3 The Internet — Using Language：Present Perfect Passive Voice — Learning objectives: 1. Observe and summarize the form and the functions of the present perfect passive voice; 2. Compare the present perfect passive voice with the active voice, and change the active form into the passive form; 3. Apply the present perfect passive voice into use. 2 Lead-in Watch a video How has our life been changed by the Internet ？ Fill in the blanks according to the video. Our lives greatly (change) by the Internet.we no longer have to wait in line or carry cash around when we go shopping，and Wechat pay&Alipay ha s already (use) to pay for goods and services lately.Mobile phones and telephones were mainly used for social communication before, while Social media apps hav e been downloade d(download) to do it nowadays. Local newspaper was an important way of our access to information in the past, but now any news from anywhere in the world (update) up to the minute with a click or two.All kinds of malls and stores were frequently visited for shopping in the past, while more than 15 billion items (sell) on T-mall since 2014. have been changed have been used have been downloaded has been updated have been sold Identify the tense Identify the tense 01 Our lives have been greatly changed by the Internet. 02 Wechat pay&Alipay have already been used to pay for goods and services lately. 03 Social media apps have been downloaded to do it nowadays. 04 Any news from anywhere in the world has been updated up to the minute with a click or two. 05 More than 15 billion items have been sold on T-mall since 2014. what is the structure of the tense? Identify the tense Present Perfect Voice Passive Voice Present Perfect Passive Voice have/has done be done have/has been done what is the tense made up of ? y Understand the tense P30 Tense State of action focus The Present Perfect Voice The Present Perfect Passive Voice started in the past still going on or have an effect on the present what has been done? who/what does the action? Sentences A Sentences B Sentences A The Internet has greatly improved Jan’s life. People have written much about the wonders of the World Wide Web. Jan’s life has been greatly improved by the Internet. Much has been written about the wonders of the World Wide Web. Sentences B Similarities Differences Compare the sentences and tick the correct boxes. Understand the tense 01 02 03 04 05 Our lives have been greatly changed by the Internet so far. Wechat pay&Alipay has already been used to pay for goods and services recently. Any news from anywhere in the world has been updated up to the minute with a click or two yet. More than 15 billion items have been sold on T-mall since 2014. The Internet has already been used for nearly 30 years in china. What adverbials of time are often applied in the tense？ 1 表示 某个时间发生的或 的动作对 _______ 造成的 _____________ 。 Past present 过去 已完成 现在 影响或结果 e.g. 1. I have just opened the door. 现在完成时概念1： 常用的时间状语有： ◆常与不确定的时间状语连用，如: already, before, recently, lately, so far, ever, just, yet, up to now, by now, in the past/last +一段时间,次数（once, twice...)等,表示“到目前为止”所发生的动作. (The door is open now.） 2. 表示 开始，一直持续到 的动作。 过去 现在 现在完成时概念2： The dog has lived here since it was born. The boy has lived with the dog for four years. 注意：这类句子只用于延续性动词 Understand the tense Can you change the sentence into different forms of the Present Perfect Passive Voice? Our lives have been changed by the Internet. Affirmative form Our lives have been changed by the Internet. . Negative form Have our lives been changed by the Internet? General question What has been changed by the Internet? Special question The Internet has changed our lives. have/has + been + v-ed have/has + not + been + v-ed Have/Has +主语+ been +v-ed? 疑问词+have/has +been+ v-ed? The Internet has greatly improved Jan's life. the Internet. Jan's life has been greatly improved by 主语 谓语 宾语 The Internet has greatly improved Jan's life 宾语 主语 谓语变被动 has/have+been+done+by change them into the passive voice 问题导学1(4’) I have downloaded the software to help my phone last longer. me The software has been downloaded by 主语 谓语 宾语 I have downloaded the software 宾语 主语 谓语变被动 have/has+been+done+by ( ) to help my phone last longer. change them into the passive voice People have written much about the wonders of the World Wide Web. people Much has been written by 主语 谓语 宾语 People have written much 宾语 主语 谓语变被动 have/has+been+done+by ( ) about the wonders of the World Wide Web. change them into the passive voice 即学即练 1. I have asked her to help you. 将下列主动句变为被动句 2. They have found a good place to build a library in the city. 3. We have planted many trees on the hill in the last two years. She has been asked by me to help you. A good place has been found by them to build a library in the city. Many trees have been planted by us on the hill in the last two years. 15 Practice the tense Great benefits have been b rought (bring)to Wuzhen, a small waterside town in Zhejiang Province,by the Internet .For the past few years, the World Internet Conference (WIC) has been hosted(host)here, which makes life in this ancient town much more convenient than it has been. Residents here can surf online as easily as in large modern cities. Movies and musics can also be downloaded at high speeds.Wuzhen’s transport has even been changed (change)by the Internet! For short distances, the public bike system has been used (use)by both residents and tourists since 2016. Bikes can be rented by using online apps- -no need for paperwork or cash payment.Since 2016, the parking system for Wuzhen's WIC centre has been updated (update)to be fully Internet-based.Other small towns around the world have been inspired(inspire)by Wuzhen's entering the world of the Internet. No matter how small a town is, everyone should be able to join the global network and access the world of the Internet! have been brought has been hosted has been changed has been used has been updated have been inspired Complete the passage with the correct form of the verb in brackets . Practice the tense Translate the following sentences from Chinese to English. 自从乌镇互联网大会以来，互联网为乌镇带来了巨大的好处。（bring） 01 Sin ce the Wuzhen Internet Conference, great benefits have been brought（bring） to Wuzhen. Since have been brought 从那时开始，在这里，上网冲浪可以和大城市一样轻松简单。 02 Since then, the Internet has been surfing (surf) as easily as in large cities. has been surfed 电影和音乐可以高速下载，公共自行车系统也可以被居民自由使用。 03 Movies and musics have been download ed(download) at high speeds, public bike system ha ve been u sed freely by the residents. have been downloaded has been used 自行车可以通过在线应用程序被租用，乌镇WIC中心的停车系统已经被升级为完全基于网络。 04 Bikes has been rent ed(rent) by using online apps, the parking system for Wuzhen’s WIC Center has been upgra ded(upgrad) to be fully Internet-based. have been rented has been upgraded 这里的生活变得比以前便利多了。 05 The life here has b een made(make) much more convenie nt(convenience) than it has been. has been made convenient Not only has the Internet made our lives more 1. __________（convenience），but people’s lives have also been changed by online communities and social networks. Take Jan Tchamani，an English teacher，for example. She had to quit her job 2. ________________she developed a serious illness. With only her computer to keep her company，she felt lonely and 3.______ 　　　　（bore）. However，by surfing the Internet，she found her life greatly changed since the Internet was able to keep people closer no matter 4. ________ they live.   5.___________ （inspire）by the people she met online，she decided to start 6. _____　　　　 IT club to teach older people how 7. _______（use）computers and the Internet. In order to learn more about how to use the Internet to make society 8. _________（good），Jan herself has started taking online classes. She believes that it is9. ________（high）important to bridge the digital divide and make sure that everyone has access to the Internet and knows how to use new technology. Her next goal is to start a charity website to raise money for children in poor 10. ___________（country）. Due to the Internet，Jan’s life has been greatly improved. convenient because/since/as bored where Inspired an to use better highly countries Review 5’ THANKS Lavf58.28.100 $