Unit 1 Discover Useful Structures 动词不定式作表语课件-2023-2024学年高中英语人教版（2019）选择性必修第三册

杨婷婷 Unit 1 Art Discover useful structures 1 Learning objectives At the end of this lesson, I will be able to: discover and summarize the pragmatic features and functional meaning of infinitives as the predicative; realize language output by correctly using the grammatical structure of infinitives. Recognizing the target structure way purpose aim What they attempted to do Matching A C G B F H I E 1. 结构 动词不定式可以放在be, become, sound, taste等_______后面作表语。 2. 功能 ① Perhaps _____________________________________________ the development of Western painting over the centuries. 也许，了解西方艺术的最好方法就是回顾若干个世纪以来西方绘画的发展。 ② ____________________________ your father for his opinion. 我的建议是问问你父亲的意见。 Infinitives as the predicative 系动词 the best way to understand Western art is to look at What I would suggest is to ask Discover and Find Function 1.表示将来或预计 I don’t know what is to happen to us if we go on like this. 如果我们这样下去,我不知道我们会发生什么事。 I went to have a look at the room where I was to talk that afternoon. 我去看了一下那个房间,那天下午我要在那里讲话。 Function 2.表示目的 The next step is to make sure that you know exactly what is required. 下一步你要弄清楚真正需要的是什么。 The purpose of education is to develop a fine personality in children. 教育的目的是发展孩子们美好的品格。 Function 3.表示计划或意图 They are to be married next week. 他们打算下周结婚。 They are to finish the work before the manager comes back. 他们计划在经理回来前完成工作。 注意:该结构也可用于条件状语从句。 If I’m to be there on time,I must leave at once. 如果我要想准时赶到那儿,我就必须马上动身。 Function 4.表示命令或规定 Visitors are to leave when the bell rings. 来访者必须在铃响时离开。 You are to finish your homework before you watch TV. 你得做完了作业才能看电视。 She can go to the party,but she’s not to be back late. 她可以去参加聚会,但不能晚归。 Practice 判断下列动词不定式作表语的用法 (1)In this work,Monet’s aim was to convey the light and movement in the scene.　　 　　  (2)The best item on the programme is still to come.　　 　　  (3)As she is a middle school student,she is to be in class at 7 o’clock in the morning.　　 　　  (4)They are to finish the work befo