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 Grammar 高中英语 Learning objectives At the end of the class, you will be able to 1. know the form, the meaning and the function of the present perfect passive voice 2. talk about the things that have been done Many students like this movie. This movie is liked by many students. Mike finished his homework on time. His homework was finished on time. We will hold a meeting tomorrow. A meeting will be held tomorrow. Everyone is expecting the good news. The good news is being expected. 高中英语 Revision Read the pairs of sentences and compare the verb forms Passive voice Active voice This movie is liked by many students. His homework was finished on time. A meeting will be held tomorrow. The good news is being expected. 高中英语 Look at the sentences below Forms? Meanings? 种类 构成 意义 一般现在时被动语态 am/is/are+done 被做 一般过去时被动语态 was/were +done 被做了 一般将来时被动语态 will +be+done 将被做 现在进行时被动语态 am/is/are +being+done 正在被做 高中英语 Summary The Internet has greatly improved Jan’s life. Jan’s life has been greatly improved by the Internet. People have written much about the wonders of the World Wide Web. Much has been written about the wonders of the World Wide Web. 高中英语 Read the pairs of sentences and compare the underlined verb forms. Passive voice Active voice 高中英语 How do we form the present perfect passive voice? Fill in the blank below. have /has + done have / has + been + done Verb form Passive Active 高中英语 Read the sentences and underline the grammar structure 1. Over time the city has been changed a lot. 2. The computer has been used for 3 years. 3. The dirty clothes have been cleaned. 高中英语 Understand the underlined parts and fill in the form below 1. Over time the city have been changed a lot. 2. The computer has been used for 3 years. 3. The dirty clothes have been cleaned. 现在完成时的被动语态 形式 have/has+been+don 意义 e已经被做了 高中英语 Understand the underlined parts and fill in the form below 1. How many buildings have been built in your school? 2. Have t