Unit 8 Green Living Lesson 1 Roots and Shoots 语法分词教学设计-2023-2024学年高中英语北师大版（2019）必修第三册

Unit 8 Green Living Lesson 1 Grammar Verb -ing and -ed forms Teaching Objective: · To review what they have learned yesterday · To learn to use verb -ing and -ed forms to express meaning · To learn to use verbs or nouns to express meaning Difficult points · Students may review what they have learned yesterday. · Students may need to know the classification of participle. · Students may need to know how to use the -ing and -ed forms. Teaching Process： Step 1：Lead-in 1.Show students four sentences of the text and let them to think about the underlined words. There are four sentences. What do you see in these sentences? Yes. There are some underlined words. Please think what these words are and what their functions are. (1) Well, say you leave the tap running while you brush your teeth… (2) Do you want to be a part of a community for a shared future? (3) One cheered-up person, one happy dog, one flowering plant, and you. (4) a scientist who’s the world’s best-known expert on wild chimpanzees... Step 2：Presentation 1. The classifications of participle · Participle is a kind of non-predicate verb · There are two kinds of participle: present participle (v.-ing) and past participle (v.-ed). 1　 确定谓语动词 or 非谓语动词 ？ 填非谓语：句子中已有谓语动词且无连词。 2　 判断非谓语动词的形式： 表目的和将来，用不定式 to do 表主动和进行，用现在分词doing 表被动和完成，用过去分词done 3　 辨析 分词 语义 例句 现在分词  主动、 进行   developing country  发展中国家          Do you know the woman talking to Tom? 过去分词  被动、 完成  developed country   发达国家 The soldier wounded in the war has become a doctor. 2. The functions of participle · Participles act as adjectives and adverbs in sentences · It can be used as predicate, attributive, adverbial and object complement, etc 1　 作表语 分词 例句 解读 现在分词 1. His favorite sport is playing football. 2. The film is exciting. 1. 指一般性、经常性的动作； 2. 表示主语所具有的特征或     属性，意为“令人……的”。 过去分词 He was excited at the news.  常表示主语的性质或状态，意为“感到……的”。 2　 作定语 分词 例句 解读 现在分词 The young man sitting between John and Mary is an editor.  被修饰词the young man与