Unit 2 Morals and Virtues Discovering Useful Structures(教学课件)-【上好课】高一英语同步备课系列(人教版2019必修第三册）

UNIT 2 MORALS AND VIRTUES Section Ⅲ Discovering Useful Structures 动词-ing形式作状语和宾语补足语 1 -ing 时态和语态 主 动 被 动 一般 完成 否定式 doing being done having done having been done not+-ing / not+having done Learning the structure 1. Climbing mountains is dangerous. 主语 2. My broyher always loves playing basketball after school. 宾语 3. His hobby is playing games. 表语 观察下面句子并分析画线部分在句中所作的成分   3 5. Looking down at her phone as she walked, she hit the door. 定语 4. The lady doing the live broadcast is called Qiao Biluo. 正在做直播的这位女士名叫乔碧萝。 状语 6. The head teacher saw Li Ming playing with smart phone in the classroom. 宾语补足语 定语 状语 4 Focus on 基本用法 the –ing form used as adverbial 1. Walking in the street, I saw a tailor's shop. 2. Being poor, he couldn't afford a TV set. 3. His father died, leaving the family even worse off. 4. Using your head, you will find a good way. 5. Studying hard, he didn't pass the exam. 6. He earns a living driving a truck. 7. He sat in the chair reading a newspaper. 时间 原因 结果 条件 让步 方式 伴随 1. When I walked in the street, I saw a tailor’s shop. 2. Because he was poor, he couldn’t afford a TV set. 3. His father died and left the family even worse off. 5. Though he studied hard, he didn’t pass the exam. 4. If you use your head, you will find a good way. 7. He sat in the chair and read a newspaper. 6. He earns a living by driving a truck. 动词-ing形式是非谓语动词的一种，兼有动词和形容词的特征，在句中可作表语，定语，宾语补足语和状语，一般表示进行或主动的意思。 动词-ing形式用作状语时，其逻辑主语必须与句子的主语一致，动词-ing形式所表示的动作和句子的主语是主动关系。 动词-ing形式在句中可以作时间、原因、条件、让步、方式、伴随和结果状语。 动词-ing形式作状语 7 现在分词作时间状语时，相当于时间状语从句。可在现在分词前加连词“when, while, until”等，使其时间 意义更明确。 Walking in the park,she saw an old friend. ＝When/while(she was)walking in the park,she saw an old friend. 当她在公园里散步时，她看到了她的一个老朋友。 v-ing形式作时间状语 现在分词作原因状语时，可转换为由since, because或as引导的原因状语从句，这类状语多放在句子的前半部分。 Being ill，he couldn't go to school. ＝As he was ill，he couldn't go to school. v-ing形式作原因状语 现在分词作条件状语时，可转换为if, once或unless等引导的条件状语从句。 Working hard，you'll make great progress. ＝If you wo