Unit2 Discover useful structures 课件-2022-2023学年高中英语人教版（2019）必修第三册

BOOK3 Unit 2 MORALS AND VIRURES Discovering Useful Structures By the end of the class, you will be ableto 1. Identify and understand the meaning and functions of the -ing form used as the adverbial and the object complement. 2. Use the -ing form as the adverbial and the object complement to describe people’s actions and experiences. Learning objectives Lead-in listen to the music clips and complete the sentenes. 1.I feel the pages________/I see the candle_________down. 2.When I was young, I’d listen to the radio,_________for my favourate songs. waiting object completement(宾补) adverbial(状语) turning burning 1. Hearing the news, they immediately set off for Shanghai. 2. Being tired, I stopped to have a rest. 3. Working harder at English,you will make greater progress. 4. Feeling exhausted, they still kept running. 5. She lay on the grass, staring at the sky for a long time. The present participle as the adverbial 时间状语 原因状语 条件状语 让步状语 伴随状语 Read the sentences below and try to identify what kind of adverbial the V-ing functions as. 现在分词作状语（修饰动词）时, 可表时间、原因、条件、方式、伴随、让步等情况,其逻辑主语必须是句子的主语，构成主动关系，其作用相当于状语从句或并列句。 Thepresent participle as the adverbial 1. 作时间状语(when, while, until) eg. Seeing the police, he made a run for the exit. 一看到警察，他就朝出口奔去。 （分析：see的动作是由其逻辑主语“he”发出，与句子的主语he一致，且构成主动关系，所以用动词-ing形式。） _______________________, he made a run for the exit. When he saw the police ＝ 2.作原因状语（since, because或as） Being ill, he didn’t go to school yesterday. The present participle as the adverbial ＝ Because___________, he didn’t go to school yesterday. he was ill 3.作条件状语(if, once或unless) Working hard at your lessons, you will succeed. If ___________________________, you will succeed. you work hard at your lessons ＝ Pay attention 1) 动词-ing形式作状语时,其逻辑主语必须与句子的主语一致. Looking out of the window, the garden was beautiful.  Looking out of the window, we found the garden beautiful. Pay attention 2)当--ing表示的动作发生在谓语动词之前时,应使用完成式: having done.否定式在前加not。 1. Having finis