Unit 4 History and Traditions Discovering useful structures 课件-2023-2024学年高中英语人教版（2019）必修第二册

Unit 4　History And Traditions 人教版 高中英语 Discovering Useful Structures P42 1 Lead in: Review What is the past participle(过去分词）？ 1. 基本模式：done 不规则变化见P114 动词原型+ed ①The polluted water was to blame for the spread of cholera. 被动 与逻辑主语之间构成被动，且动作已经完成。 2. 意义：一般表示完成的和被动的动作。 定语 Presentation Most people just use the shortened name: “the United Kingdom” or “the UK”. (教材P40) They use the same flag, known as the Union Jack, … (教材P40) Please find out the past participles Thinking: 1.过去分词与逻辑主语的位置关系 2. 过去分词在句中所做成分 定语 Presentation Most people just use the shortened name: “the United Kingdom” or “the UK”. (教材P40) They use the same flag, known as the Union Jack, … (教材P40) Please find out the past participles 过去分词做定语，单个过去分词可以置于逻辑主语之前做前置定语；过去分词短语可以置于逻辑主语之后做后置定语。 Have you seen anything changed? There was nothing changed at all after six months of negatiation? Presentation 当被修饰词是不定代词的时候，过去分词放在不定代词后面，做后置定语。 复合不定代词： some any no every one body thing 二、过去分词作定语的意义 不及物动词的过去分词作定语，只表示动作已完成，不表示被动；及物动词的过去分词作定语，表示被动和完成。 1) 不及物动词的过去分词作定语 a retired teacher fallen leaves 2) 及物动词的过去分词作定语 deeply moved people the broken glass 1．一般情况下，单个过去分词作前置定语，即放在所修饰词之前。 (1)有些过去分词表示特定含义时，单独作定语也放在所修饰的名词之后，如left(剩余的), given(所给的), concerned (有关的)等。 (2)如果被修饰的词是由every/some/any/no与thing/body/one所构成的复合代词或指示代词those等，单个过去分词放在被修饰词的后面。 2．过去分词短语作定语时往往作后置定语，即放在所修饰词之后，它的作用相当于一个定语从句。 3. 与逻辑主语之间构成被动，且动作已经完成。　 归纳总结： Practice Complete the phrases in the right column by using the past participles in the left column. tired visitors visitors of the long wait a well-organised trip a trip well by my workplace beautifully dressed stars stars beautifully at the event tired organised dressed 做前置定语 做后置定语 practise (1)用所给词的适当形式填空 ①(2020·全国卷Ⅱ)The beautiful long branches _______ (cover) with pink­colored buds (蓓蕾) make fantastic decorations. ②(2022·全国甲卷)Ins