Unit 9 Help Yourself By Helping Others单元教案（4课时）

第 9 单元 第 4 节 授课题目 Unit 9 Structure 课型 New 教学目标 知识目标 1. Grasp the words. 2. Revise the Passive voice 能力目标 Improve the Ss’ ability of summary. 情感、态度、价值观 Let the Ss know that helping others is helping themselves. 教学重点 The new words.2. The usage of the Passive voice 教学难点 1. Grammar2. Let the Ss grasp the structure correctly. 教学设计思路 Reviewing--Practicing--Grasping 教法 Task-based Method 学法 Cooperation 课前准备 PPT 教 学 过 程 教学环节 教 师 活 动 学生活动 设计意图二次备课 课题引入 Step 1.Review 1.Review some useful words and phrases.2.Have a dictation. Read words and phrases loudly Review and consolidate 教 学 过 程 教学环节 教 师 活 动 学生活动 设计意图二次备课 课程实施 Step 2. PresentationGive some sentences, let the students find out the use and form of the Passive voice Summary被动语态的用法：1.定义：即不知道动作的执行者或强调动作的承受者的一种语态。2.谓语动词的构成： be+done(过去分词) (+by+动作执行者)3.主动语态：S. + v. +O. 被动语态：O.+be+v.-ed +by S.被动语态的用法：不知道动作的执行者是谁。e.g. This watch is made in China.没有必要指出动作的执行者是谁。e.g. More trees must be planted.需要强调或突出动作的承受者。e.g. Chinese is spoken by more and more people in the world.句子的主语是动作的承受者。 e.g. Many houses were washed away in the flood.5.被动语态的各种时态变化：即be的变化e.g. He writes a book. 一般现在时：am/is/are done e.g. A book is written by him . 一般过去时：was/were done e.g. A book was written by him last month. 一般将来时：will be done e.g. A book will be written by him next week. 过去将来时：would be done e.g. He said a book would be written by him. 现在进行时：am/is/are being done e.g. A book is being written by him now. 过去进行时：was/were being done e.g. He said a book was being written by him. 现在完成时：have/has been done e.g. A book has been written by him. 过去完成时：had been done e.g. A book had been written by him by the end of last month.6.含有情态动词的被动语态：Can/may/must be done e.g. A book must be written by him now.带双宾语的谓语动词变被动语态：可以将间接宾语转化为主语，则保留直接宾语；若将直接宾语转化为主语则保留间接宾语，且在被保留的间接宾语前加上介词to或for. E.g. She gave me a book. I was given a book. A book was given to me.主动语态中省略的to变被动语态时要加上。 主动语态中在感官动词see, hear, watch, feel, notice等和使役动词let, make, have等后省略的to,变被动语态时要加上。 e.g. He makes the girl stay at home.———The girl is made to stay at home.We heard him sing in the next room.———He was heard to song in the next room.不及物动词happen, take place等没有被动语态形式。 e.g. The contest will take place next week.read, write, sell, wash, clean等词用主动表被动意义。 e.g. The pen writes well. 这支笔写起来很好。need doing=need to be done "需要做某事",用主动表被动意义. e.g. The bike needs repairing.=The bike needs to be repaired.be worth doing "值得做某事", 用主动表被动意义。e.g. The book is worth reading. Step 3. Practice Step 4. Homework Do some exercises.Know s ... ...