九年级英语上册《Unit 4 Amazing Science》Topic1 SectionC 教案 仁爱版.doc

九年级英语上册Unit 4 Amazing ScienceTopic1 SectionC 教案 仁爱版The main activity is 1a. 本课重点活动是1a。. Teaching aims and demands 教学目标1. Learn some new words and phrases:doubt, no doubt, tiny, cancel, connect, for instance2. Learn a useful sentence: There is no doubt that computers are very useful in technology and business.3. Go on learning the object complement:(1) Tiny computers inside patients bodies can keep their hearts beating normally.(2) At the same time, they are making the workplace safer and better.(3) The Internet is making the world smaller, like a village. (4) Mr. Lee told us not to spend too much time playing games.4. Improve the students reading skills. 5. Discuss the use of the computers. . Teaching aids 教具投影仪/图片/小黑板. Five-finger Teaching Plan 五指教学方案Step 1 Review 第一步 复习(时间:5分钟)利用不同的飞船图片，让学生对其进行描述，以巩固Section A与Section B的知识点。T:We have learned something about spaceships. Please describe them using your own words according to the pictures.(出示神五的图片。)S1:This is Shenzhou . In 2003 our national hero Yang Liwei traveled around the earth in it for 21 hours. All of us are very proud, and hope we will send more spaceships to space in the future.(继续出示神七，嫦娥一号的图片。)S2:S3:T:Good job! We know space science is very amazing, and spaceships play an important role in exploring space, but do you know what controls the spaceships?Ss:Computers.T: Yes. In this lesson, lets talk about the uses of computers.(出示一张电脑的图片，导入新课。)Step 2 Presentation 第二步 呈现(时间:12分钟)教师简单介绍电脑的用途，在介绍中引出并教学生词，以设置问题的方式培养学生的阅读能力，完成1b。1. (展开师生对话，教学生词，呈现1a，完成1b。)T:There is no doubt that computers are useful during the space trip.(板书，要求学生掌握。)doubtno doubtT:As we know, computers can control the speed and the direction during a spaceships flight. They can also fix tiny mistakes and cancel wrong orders.(板书，要求学生掌握。)tinycancelT:We also know the whole world is connected by computers. We can exchange information, news, ideaswith other people on line.(板书，要求学生掌握connect；理解exchange。)connectexchange2. (教师呈现以下问题，先让学生根据自己的了解进行回答。)(1) Do the computers play an important role during the space flight?(2) What can computers and the Internet do in our daily life?(3) Can we work on computers too long? Why?(学生能回答一些问题，但不一定全面，教师建议学生带着这些问题，阅读1a。提高学生的阅读能力。)T:Please read the passage and try to find out the answers to the questions. (学生阅读后，可与同伴讨论并给出答案。)(让学生再读1a并找出文中的疑难点，鼓励学生讨论解决，教师作补充讲解。板书并要求学生掌握。)There is no doubt that.keep their hearts beatingfor instance = for example3. (让学生齐读1a，注意一些短语和句式，完成1a课后阅读的问题和1b。)T: Read 1a together and pay attention to the expressions. Finish post-reading task and 1b.(核对答案。)Step 3 Consolidation 第三步 巩固(时间:10分钟)巩固1a，结合1a及自己的看法，分组讨论，列举电脑的优缺点，完成1c。1. (要求学生根据1a内容完成小黑板上的表格。)T:Finish the table according to 1a, then Ill ask some students to fill it out.PlaceThe use of computerIn spaceIn hospitalIn businessIn factory At home(核对答案。)2. (师生互动，练习1a，巩固目标语言。)T: Boys and girls, we know that computers are playing an important role in our daily life. We know that they can also bring lots of problems. Look at the pictures and tell me what the problems are. (用投影仪出示几组图片。)(1) (2) (3) (提问几个学生。) S1:Playing on the computer too long isnt a good habit. S2:Playing on the net too long is bad for your eyes. S3:Going to bed too late is bad for health.3. (学生分组讨论电脑的优、缺点，可以根据1a添加自己的观点，完成1c。)T:OK. We know computers help people a lot almost in every field, but it is not good for us to work on the computer too long. Please discuss in groups, and list the advantages and disadvantages of computers. You can add your own opinions. And then finish 1c.(检查学生完成情况。) Step 4 Practice 第四步 练习(时间:10分钟)通过对1a部分句型的归纳总结，继续巩固宾语补足语，完成2。1. (要求学生再次阅读1a, 找出含有宾语补足语的句子，并把它画出来，教师板书并适当讲解。) T:Read 1a again, and underline the sentences with object complement.(1) Tiny computers inside patients bodies can keep their hearts beating normally. (2) They are making the workplace safer and better. (3) The Internet is making the world smaller, like a village.2. (教师进一步帮助学生归纳宾语补足语，举例说明可作宾补的词或短语。)T: Boys and girls, look at the blackboard to see what kinds of words or phrases can be object complement. (教师用投影仪展示句子，积极引导学生了解哪些词可作宾补，教师作适当补充。)(1) We made her monitor. (名词)(2) He doesnt believe the story true. (形容词)(3) The doctor advised her to stay in bed. (不定式)(4) They saw her walking into the bookstore. (分词短语)(5) You should put your books in order. (介词短语)3. (让学生独立完成2。)T: Boys and girls, we have learned something about object complement. Do you all understand?Ss: Yes. T: OK, finish 2 by yourselves. (两分钟后，教师核对答案。)Step 5 Project 第五步 综合探究活动(时间:8分钟)结合以上内容，小组讨论健康上网的方式，完成有关内容的应用文写作及家庭作业。1. (分组讨论如何给网吧写一个上网注意事项，提醒常去网吧的人注意上网卫生，养成健康的上网习惯。)(教师用投影仪展示格式，给予提示。)Welcome to Net Bar.Tips: (1) Have a rest every two hours when you are on the net. (2) (3) (4)T: Boys and girls, work in groups and try to write some tips for people who like to spend time in the net bar. 2. Homework:Write a passage about the advantages and disadvantages of the computer according to 1c.板书设计：Spaceships are mainly controlled by computers. Section Cno doubtThere is no doubt that computers are very useful infor instance technology and business.Tiny computers inside patients bodies can keep their heartsbeating normally.At the same time, they are making the workplace safer andbetter. The Internet is making the world smaller, like a village. Mr. Lee told us not to spend too much time playing games.