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 Internet · Discovering Useful Structures Teaching objectives: By the end of this period, you will be able to… analyze the forms and features of the present perfect passive voice. find out the differences in meaning and function between the active and passive forms. master the functions of the present perfect passive voice in the context and use it in real situations. New words They’ve built a kind of new PC with more functions. function as New words Have you confirmed the Wi-Fi password? confirm sb in sth Review：过去分词的用法 完成时态：have/has/had +过去分词 But the Internet has done much more for people than simply make life more convenient. 现在完成时态：have/has +过去分词 被动语态：be + 过去分词 She was so inspired by the people she met online that she decided to start an IT club to teach older people how to use computers and the Internet. 现在完成时态的被动语态？ Jan’s life has been greatly improved by the Internet. The Internet has greatly improved Jan’s life. Much has been written about the wonders of the World Wide Web. People have written much about the wonders of the World Wide Web. Lead-in: Comparison has been improved ← has improved has been written ← have written 现在完成被动 ← 现在完成 have/has been done ← have/has done 6 1. Much has been written about the wonders of the World Wide Web. Observe and translate the following sentences, and try to find something in common from these sentences. 2. People’s lives have been changed by online communities and social networks. 3. Many people have been helped by the club. …已经被书写 …已经被改变 have/ has been done …已经被做 表示 “某人/某事/某物已经被…” …已经被帮助 has been written have been changed have been helped 7 问题导学1(1’) 点拨精讲1(3’) Observe and translate the following sentences, and find the differences among “have/has done” and “have/has been done”. have/ has done have/ has been done 主语和动作之间是主动关系 主语和动作之间是被动关系 1. A woman has started a small online company with two friends. 1. A small online company has been started by a woman with two frien