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选择性必修三《Unit 1 Art》Discovering useful structures优秀ppt课件
Period 3 Discovering useful structures
The infinitive of the verb as the predicative
Unit 1ART
本单元to do sth基本用法
自我探究。
观察课文例句，总结to do sth 的用法。
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
动词不定式在句子中做表语。
基本构成
定义
To do sth
不定式 相当于名词、形容词、副词。充当主语、宾语、定语、表语、宾语补足语、状语。
动词不定式作表语
1 结构
am/is/are/was/were + 不定式
The purpose of education is to develop a fine personality in children.
教育的目的是发展儿童良好的品格。