Unit 9 When was it invented

Unit 9 When was it invented Period one 杨成菊杨成菊 使用日期 11 月 13 教学目标 1 知识目标 1 学习词汇 invent calculator 和句型 When was the car invented 2 理解和应用一般过去时的被动语态 2 能力目标 弄清主动语态与被动语态的差异 并通过练习和运用 加以巩固 培养学生的听力和口语交际能力 3 情感目标 在学习中 学生懂得人类的科学发明创造了丰富的物 质文明 培养学生的创造发明的能力和愿望 教学重点 学习本单元词汇和掌握一般过去时的被动语态的用法 教学难点 如何把一般过去时态的主动语态改为被动语态 教学方法 讲练法和情境创设法 教学准备 点读机 多媒体课件 课型 新授课 教学过程 1 组织教学 Greetings 2 检查预习情况 让学生说说已经学过的中国四大发明 3 复习导入 Lead in Ask the students to be familiar with the words below according to the pictures on computer 叫学生根据图片或通 过多媒体熟悉如下的单词 复习 Unite 3 情态动词的被动语态 4 导入 Lead in We have inventions everywhere Inventions make us live easily and happily Without inventions our lives will be much more difficult Today we will know about a few inventions and talk about the historyof them 回顾中国的四大发明 paper making 造纸术 printing 印刷术 compass 指南针 gunpowder 火药 新授 Step 引出下面的新单词 让学生注意新词的发音 telephone calculator car personal computer TV light bulb Step Show the pictures of inventions on the screen a car a Tv set a telephone a calculator a computer 在课件中展示一些发明物的图片 Make a coversation with a tudent 然后练习以下句型 T What is it are they S It is They are T Whom was it were they invented by S It was They were invented by 1 Ask students When was the car invented It was invented in Choose the three inventions of these and ask students to guess when each one was invented For example you might choose car telephone and personal computer Have several different students guess and write the dates on the board Ask the class to repeat the questions and answers T Teacher S Student T When was the car invented Class repeat T Good Now Jackie what was your guess S1 1900 T OK Jackie repeat after me The car was invented in 1900 Repeat the process with several different inventions At last make students find out the real dates 2 ask students Who were the light bulbs invented by 呈现 light bulbs 的画面 Tell the students Edison invented light bulbs Then ask the students to answer the questions below T Who were light bulbs invented by Class repeat T Good Now Class repeat after me They were invented by Edison 通过练习句型让学生理解一般过去时的被动语态及应用 如 Maria bought the book last year 主动句 被动句 The book was bought by Maria last year 练习本节课的重点句型 巩固一般过去时的被动语态 Then ask the students to answer the questions below 叫学生回答如下 的回答 Whom was the car invented by It was invented by Whom was the computer invented by It was invented by Step Listen and Choose the inventions of these and ask students to answer when each 0ne was invented At last make students find out the real dates 当学生对句型理解后 听听力让学生找出那些发明物 的正确日期 完成 1a 和 1b Step Make a coversation with a student 然后练习以下句型 培养 学生的口语交际能力 练习 1c Sample dialogues A When was the telephone invented B I think it was invented in 1876 A When was the car invented B I think it was invented in 1885 I think it was invented after the telephone SUMMARY 课堂小结 通过本节课的学习 让学生了解一些历史的发明物 并且让学生 理解和掌握一般过去时的被动语态以及应用 练习巩固 见课件习题 作业设计 1 作业 练习册 P49 1 5 2 预习作业 预习第二课时 板书设计 Unit 9 when was it invented Section A