教科版 必修一Unit 7 A Place Where History Comes to Life Grammar(共39张PPT)

Unit 7 A place where history comes to life P2 Grammar 1. To understand the “-ed” form of verbs 2. To be able to use the “-ed” form of the verbs correctly Objectives Among the burnt documents was the method used to build the pyramids. Besides, in libraries built today, books take up less and less space. 上面两个句子中，V-ed形式都作定语。 观察v-ed形式在句中充当什么成分。 Observe Let’s review how to change a verb into its “-ed” form. A. +ed B. +d C. 双写词尾+ed D. y i +ed finish cry arrive stop work drop live study regular Verbs Irregular Verbs Verbs Past tense Past participle cost cost cost come came come buy bought bought go went gone A B C A A A A A B B A B 1. V-ed形式的基本形式是“动词+-ed”， 但也有不规则的形式。 2. 一般表示完成的和被动的动作。 3. V-ed形式可以用作定语、表语、宾 语补足语和状语，不能单独作谓语。 V-ed形式 V-ed作定语往往与被修饰的词成为一个复合词，实际上相当于一个单纯的形容词，除表示“完成”的动作之外，还表示“被动”的意义。 spoken English (英语口语)； iced beer (冰镇啤酒)；cooked food (熟食); fried chips (炸土豆条); V-ed形式作定语 但要注意不及物动词的V-ed常表示“完成”的动作，而不表示“被动”意义。boiled water (开水); fallen leaves (落叶) the risen sun (升起的太阳)