Unit 2 Review Useful Structures 课件-2022-2023学年高中英语人教版选择性必修第四册

新人教选择性必修Book 4 Unit 2 Iconic Attractions Review useful structures Part 1 Lead-in Work in groups and read the text again to find as many examples of past participles as possible. Discuss their functions. 1. Located to the south of the equator ... 2. I'm more interested in meeting people ... 3. After being here for a while, my biggest impression is the complicated mix of peoples and cultures that make up the nation. 4. ... with many of the cultural influences contributed by immigrants. 5. Most of their musical instruments are really just sticks found on the ground ... called the didgeridoo. 6. A skilled player can play for a long time ... 7. ... but after trying for hours, I was convinced that I could never make a musical sound with this instrument! -ed as the attribute -ed as the predicative -ed as the adverbial -ed as the attribute -ed as the attribute -ed as the attribute -ed as the object complement -ed as the predicative Part 2 Presentation 一、过去分词作定语 1. 意义：及物动词的过去分词作定语往往表示被动和完成；不及物动词的过去分词作定语不表示被动，只表示完成。 (1) 表示被动和完成  一条被污染的河流 _______________  浇过水的花 __________________ (2) 只表示完成，不表示被动  落叶 ____________  升起的太阳 ____________ 2. 位置：单个的过去分词作定语时，通常放在被修饰词的前面；过去分词短语作定语时，通常放在被修饰词的后面，其作用相当于一个定语从句。  The student dressed in white is my daughter. ＝ The student ______________________ is my daughter. Summarize a polluted river the watered flowers fallen leaves the risen sun who is dressed in white 二、过去分词作表语 1. 意义：用在系动词后面，构成系表结构，表示主语所处的状态。 (1) She looked ______________ (disappoint). (2) We were ____________ (encourage) at the news. 2. 过去分词作表语表示主语所处的状态。这一结构从形式上与被动语态相同，但被动语态强调主语所承受的动作。试比较： (1) 这本书写得好。____________________________ (2) 这本书是由一位士兵写的。______________________________ disappointed encouraged The book is well written. The book was written by a solider. Summarize 三、过去分词作状语 1. 意义：过去分词作状语，修饰谓语动词，进一步说明谓语动词的动作和状态，其逻辑主语通常就是句子的主语，且主语是过去分词动作的承受者。过去分词作状语时，可单独使用，也可以在其前面加上适当的连词，可表示时间、原因、条件、伴随、方式等。 Greatly __