Unit 2 Discovering Useful Structures 课件-2022-2023学年高中英语人教版（2019）必修第三册

Grammar P18 V-ing form used as adverbial and object complement Unit 2 Morals and Virtues 1 V-ing 作状语 一般句型(分词作状语的位置 1. 非谓语动词 ......, 主句. 2. 主句，非谓语动词 ...... 3. 主句非谓语动词 ...... 时间状语 条件状语 原因状语 目的状语/伴随状语 结果状语 伴随状语 目的状语 伴随状语 3 分词用作方式状语，往往修饰句子中的谓语动词，可以放在句 首，也可以放在句末。Smiling, he answered. She came running hurriedly into her husband's office one morning. 一天早上，她匆忙地跑进她丈夫的办公室。 Finding the door locked, I went home. 2) I went home, finding the door locked. 一、V-ing 结构 非谓语动词与主句主语是主动的关系,。 1) Hearing the bell, the students began to enter the classroom. 2) Not knowing the answer to this question , he turned to his deskmate. 3) The two girl stood there for half an hour talking about the boys who were playing basketball. 4) The COVID-19 broke out throughout the world, causing hundreds of thousands of deaths. 5) Working harder, you will make some progress. 时间状语=when... 原因状语=because... 伴随状语=and ... 结果状语 =which caused... 条件状语=if... 二、V-ing 做状语的意义 Attention 1: V-ing 作状语，相当于__________________。 一个状语从句（并列句） Attention 2: V-ing 作状语时，它的逻辑主语必须是____________, 分词必须和句中的主语含有逻辑上的__________。 句子的主语 主动关系 时间: 原因: 条件： 让步： 方式或伴随或结果： 可转换为由“when, while, until引导的时间状语从句 可转换为由since, because或as引导的原因状语从句 可转换为由if, once或unless引导的条件状语从句 可转换为由though/although引导的让步状语从句 可转换为并列句 done被动 过去 doing主动 进行 现在分词作方式，结果或伴随或方式状语时，通常不能转换为状语从句，但可用并列句代替。 I stood by the door，not daring to say a word. ＝I stood by the door，and didn’t dare to say a word. His parents died，leaving him an orphan. ＝His parents died and left him an orphan. Mary sat by the window, reading a book. =Mary sat by the window and was reading a book. v-ing形式作方式/结果/伴随状语 只用现在分词作状语的情况： generally (strictly, broadly, ...) speaking ;Judging from/ ranging from/dating back to; supposing that 条件状语=if... 二、V-ing 做状语的意义 1.Judging from appearance, he looks like an old doctor. 2. The show had a massive audience, ranging from children to grandparents. 3. He was responsible for Google's sales strategy dating back to 2000. 4.Supposing there was a war,