Unit 2 Discovering Useful Structures 课件 -2021-2022学年高中英语人教版（2019）必修第三册

Discovering Useful Struture Desribe people’s actions 必修Book 3 Unit 2 Morals and Virtues 1.To learn the usage of V-ing form used as adverbial or object complement in a sentence. 2.To apply what we learn in this period to exercises, especially in writing, and grammar filling. Learning objectives 2 Lead-in Read and discuss the functions and meanings of the -ing form. 1 ... her brother complained, thinking of the high tuition fees. 2. Thinking of all the people still in need of help, Dr Lin opened a private clinic. 3.The new People's Republic of China saw Dr Lin Qiaozhi playing a key role. adverbial adverbial object complement V-ing形式在句中作状语 v-ing形式作状语，其逻辑主语是句子的主语，且和 主语构成主动关系。 一般形式 完成形式 doing having done 例：1.Seeing nobody at home, she decided to leave them a note. （主动意义，v-ing的动作和谓语的动作几乎同时发生。） 2.Having waited for an hour, he realized he had left his wallet at home. (主动意义，v-ing的动作发生在谓语的动作之前。） v-ing形式作时间状语 例：Walking in the park，she saw an ol