028Aunit4教案2.doc

教案2课题Unit 4 Inventions 课型Reading备课时间1 period教材分析教学目标 1. Know more about the three of the most important inventions in history2. Develop the reading ability and speaking skills教学重点Let students know the importance of the three most important inventions in history.教学难点 Know the history and the importance of the three inventions 教学关键Pay attention to the practical usage of the three inventions教法与学法指导Reading competition, cooperation, self-study.教学环节主要教学步骤或内容学生主体活动教师活动设计意图时间分配第一环节复习回顾平移的基本性质，引入课题Step one: Free talk :Which invention do you use most in your daily life?1.talk about the important invention in daily life1. Show some pictures of different inventions in daily life 1.To arouse the interest and lead them to get into the topic of this unit.5第二环节观察操作、探索归纳平移的作法 Step two: Fast reading Step three: while-reading.Reading comprehension. Step four: Discussion 2. Read the text quickly and answer the questions 3. Read the text in details and finish the blank filling exercise in a sheet, then check the answers ,after that , try to design questions according to the text and ask your classmates to answer it .Then sum up the use of computers in our daily life.4. Talk in group : If there is no light bulbs, how will you live ? 2. Show the question:a. Where did people begin to use wheels?b. Why do the writer say wheels is perhaps the most important invention in the world ?c. Who invented one of the first practical telephone in 1876?d. When did Thomas Edison develop the first practical light bulb ?3. hand out the sheet and design the blank according to the important information.Then check the answers with students. Pay attention to some key words of this unit:The greatest invention, since then , millions of , allow to do , keep in touch 4. Let some students to give a speech about “ If there is no light bulbs , how will you live? 2.Let the students get the general idea of the text. 3.To make them get familiar with the details of the text and train their ability of reading4.train the students speaking ability and cooperation ability. 25第三环节课堂练习Step five: exercise5.Finish the exercise in Part C and D5.Help them to find the details in the text.5. To train the students reading ability . 5第四环节课时小结step Six: Sum up 6 Sum up : Know more about computers and make good use of computers 6. list out the basic use of computers 6. Prepare for the writing 5第五环节课后作业 Homework 1. Read the text fluently 2.Write a passage : How do light bulbs help us in our daily life? Hand out a sheet which contain the request of writing the passageStr