Unit 1 grammar不定式作表语复习课件-2022-2023学年高中英语人教版（2019）选择性必修第三册

Unit 1 Art Period 4 (Discovering useful structures) 不定式作表语 1 1.Learn to identify the usage of the infinitive as the predicative. 2.Learn to summarize the different forms of the infinitive. 3.Learn to apply the infinitive correctly in real situations. Learning aims Lead in Can you translate them into English? 1.眼见为实。 3.样样精通，样样松。 2.活到老，学到老。 To see is to believe. It is never too late to learn. To know everything is to know nothing. 主语 表语 真正主语 形式主语 主语 表语 What is infinitives? 不定式是 动词的一种。即不定式在句中可以作句子除 之外的大部分 句子成分 。 Read and think 1.To see is to believe. 2.He decied to study English hard from them on. 3.To learn English well, he gets up early every morning. 4.He has a lot of books to read. 5.I asked him to help me with my English. 非谓语 谓语 （主宾表定状补） 不定式只有to do 一种形式吗？ Read and think 1.Mike is going to attend the conference to be held tomorrow. 2.He pretended to be sleeping when his father came in. 3.I am sorry to have kept you waiting so long. 4. It is an honor for me to have been invited to your lecture. 5.He was siad to have been living in Beijing for 10 years. 主动语态 被动语态 一般式 进行式 完成式 完成进行式 to do to be done to be doing to have done to have been done to have been doing / / Grammar focus (1)Perhaps the best way to understand Western art is to look at the development of Western painting over the centuries. (2)During the Middle Ages，the purpose of Western art was to teach people about Christianity. (3)In this work，Monet’s aim was to convey the light and movement in the scene... 1.动词不定式做表语基本结构： 。 am/is/are/was/were+不定式 2.主语是以 ____, ____ , _______ duty, suggestion, duty, hope, idea, intention, plan等为中心的名词词组时，一般用动词不定式作表语说明主语的 。 way aim purpose 内容 What I suggest is to put off the meeting till next Friday. What strikes me most is to see her always walk home hurriedly. What he wants to do is to express his thanks for your help. 3.当 引导的主语从句作主语时