Unit 2 Wildlife Protection Period 4 Discovering Useful Structures（精讲课件+练习）- 2023-2024学年高一英语上学期同步精品课堂（人教版2019必修第二册）

Unit 2 : Wildlife Protection Period 4 : Discovering Useful Structures 人教版2019必修第二册 Teaching objectives 1. Learn to know the structure of present continuous passive voice. 2. Learn to use present continuous passive voice to describe the ongoing events. 3. Learn to use present continuous passive voice to describe the endangered animals’ conditions and measures taken to help them. Simple（一般） Continuous（进行） Present （现在） do/does Tense is/am/are doing Perfect（完成） Perfect continuous（完成） Past （过去） Future （过去） The past future （过去将来） have/has done have/has been doing did was/were doing had done Had been doing will/shall do will/shall be doing will/shall have done will/shall have been doing should/would do should/would be doing should/would have done should/would have been doing Lead in Active voice (主动语态)  Passive form (被动语态)  (1) I take a book. (1) The book is taken by me. (2) He waters the flowers every day. (2) The flowers are watered by him every day. (3) The famers don't grow apples on the farm. (3) Apples are not grown by the farmers on the farm. (4) Can we put our bikes here? (4) Can our bike be put here? The structure of present continuous passive voice Read the three sentences and try to find the functions of present continuous passive voice. African elephants are being hunted. What is being done to help them? What measures are being taken to help them? Books … are being … read … by students. … African elephants are being hunted. Object am/is/are being past participle (by +Subject) + + +  Present continuous tense (现在进行时)   Present continuous passive tense (现在进行时被动语态)  (1) I am reading a book. (1) The book is being read by me. (2) They are hunting a dear. (2) The dear is being hunt by them. (3) Tom is playing the guitar. (3) The guitar is being played by Tom. 1. 定义 表示“某人/事此时此刻正在被…”，主语是动作的承受者, 表示说话时或现阶段某个被动的动作正在进行。 1. Pandas are being protected in Wolong National Reserve. 2. A modern school is being built for the students these months. 3. A Christmas party