Unit 3 The Internet Discovering Useful Structures 课件-2023-2024学年高中英语人教版（2019）必修第二册

Unit 3 The Internet Period 3 Discovering Useful Structures Warm up Enjoy an English song “Carry on”. Which line of the lyrics uses passive voice? Which uses present perfect passive voice? But I’d like to think I can cheat it all To make up for the times I’ve been cheated on And it’s nice to know when I was left for dead I was found and now I don’t roam these streets Observing and discovering Activity 1: 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. How do we form the present perfect passive voice? have/has been + v-ed Observing and discovering Activity 1: Read the pairs of sentences. Underline and compare the different verb forms. How do we form the present perfect passive voice? Verb form Active Passive have/has + v-ed Discussion: What aspects in your life have been changed since the appearance of the Internet? Observing and discovering Before After Transport Reading Payment Entertainment ... Complete the sentences with correct forms of the verbs. Practice Much ______________ (write) about the wonders of the World Wide Web. People’s lives _________________(change) by online communities and social networks. Many people ________________ (help) by the club. Jan’s life _________________(improve) greatly by the Internet. has been written have been changed have been helped has been improved Grammar Focus Activity 2: Change the sentences into the present perfect passive voice. 1 I have downloaded the software to help my phone battery last longer. 2 Someone has lost an identity card. 3 Have you confirmed the Wi-Fi password? 4 Have you pressed the button yet to copy the file? 5 Has anyone made a comment about the online database? The software has been downloaded to help my