辽宁省辽阳市第九中学九年级英语全册 Unit 6 When was it invented？Period 3教案 （新版）人教新目标版.doc

unit 6 when was it invented？集体备课内容二次备课内容三维教学目标knowledge object: learn the new words: sweet, crispy, salty, sour, by mistake.2. learn to talk about the history of inventions.1. master: be + pp.ability object. ：1）能运用所学知识练习被动语态的句式。 2）能用所学句型进行交际练习。emotion object:培养学生的听说演等能力及合作学习的意识。教学重点1train the students speaking and listening skills with the target language.2teach the students to use the new vocabulary correctly.教学难点被动语态的运用及构成。教法情景操练，反复使用，师生互动，生生互动。学法通过谈论历史上的发明物，充分掌握被动语态的用法.教学准备多媒体课件 教科书录音机 课前预习教 学 过 程step 1 revisionhave a free talk. ask the students to practice talking to each other。step 2 presentation.1a 1. read the four words and ask students to repeat them. give them a minute to read and write the words. then tell the students they are adjectives and they are used for describing things. for example: the apple is sweet and sour. 2. get the students to describe the things with the given adjectives. some food have more than one word.3. check the answers.1b ask the students to describe how food taste and finish 1b.1.listen again and complete the sentences.2. check the answers.2c pairworkthis activity provides guided oral practice using the target language.ask the students work in pairs. role play the conversation about the invention of the potato chip. use the information from 2a and 2b.step 3. summarywork in pairs. role play the conversation about the invention of the potato chip. use the information from 2a and 2b.homework:1. learn the new words: sweet, crispy, salty, sour, by