Unit5 Music Discovering useful structures(导学案)-【上好课】高一英语同步备课系列(人教版2019必修第二册）

Unit5 Music Discovering useful structures导学案 Leaning Objectives 1.Understand the adverbial clauses and the omitting sentences; learn the functions of adverbial clauses. 2.Observe the sentences and structures and try to get rules and functions. 3.Understand the past participle as adverbial can be used to express feelings and describe situations. 课前预学区 ①Discussion: 说出过去分词在句中充当的成分. 1.This will result in a smaller number of fish left for us to eat in the future. 2. The library is now closed． 3. I tried to make myself understood. 4. The old man walked in the park, supported by his wife. 5. And don’t be shocked when your history book mentions me. 课中导学区 1）观察下列句子并总结规律： 1.She was moved by the moving speech. 2.She seems surprised at the news. 3.They looked frightened to hear the frightening sound. 4.The door is closed. 过去分词可置于 后作 语，用来表示主语的性质、特征或 。其前的系动词包括be动词、感官动词get, feel, remain, seem, look, become等多种形式。 过去分词作表语 1. 过去分词可放在连系动词be，get，feel，remain，seem，look，become等之后作表语，表示主语所处的状态, 相当于一个形容词。 例：(1) Tom was astonished to see a snake moving across the floor. (2) Finally the baby felt tired of playing with those toys. 常见的作表语的形容词有：amused, broken, closed, astonished, crowded, experienced, delighted, lost, gone, disappointed, worried, interested, tired, pleased, satisfied, surprised, married, known等。 2. V-ed作表语，构成的系表结构与被动语态的区别: V-ed作表语，强调主语的特点或状态，相当于形容词;被动语态中，句子主语是动作的承受者，后面常跟by。 例：The library is now closed．(状态) The cup was broken by my little sister yesterday．(动作) 有些过去分词（短语）源于系表结构，作状语时不表动作而表状态。 be dressed in; be lost in; be devoted to; be supposed to; be located in; be buried in; be compared with; be seated; be prepared for; be determined to do; be tired of; be absorbed in; be born in; be occupied in 3. V-ed与V-ing作表语的区别： 过去分词作表语多表示人自身的感受或事物自身的状态，常译作“感到……的”；现在分词多表示事物具有的特性，常译作“令人……的”。 过去分词作状语 过去分词作状语, 过去分词(短语)的逻辑主语就是句子主语，句子主语与过去分词之间存在被动关系。过去分词作状语可表时间、原因、条件、让步、方式或伴随等情况。 1．过去分词作时间状语 过去分词作时间状语时，相当于时间状语从句。可在过去分词前加上连词“when, while, until”等，使其时间意义更明