必修2Unit3computer--教学设计方案

1、人教版新课标高一必修2 Unit 3 computer-教学设计方案2教师行为学生学习活动设计意图（一）创设问题情境，激趣导入1.1. 教师用PowerPoint分别展示图片以及有关的学生观察图片，说出自 己的想法。利用多媒体课件创设情境激 发学生学习兴趣，给学生心介绍，分辨是什么职业。2. 根据教师指导，练口语。3. 熟悉职业名词的表达。理上的支持，创设良好的学 习氛围。2. 发言自己长大后要从事 什么职业。（二）热身1.教师设定几个问题Good 1.看图片识辨计算机，发1.熟练掌握与此部分话题mornin g,class.Lookat现不同。相关的重点词汇、短语the pictures o

2、npage 2.提高学生应答意识。及句子。17. What arethey?2.激发学生的想象力。What do they have in com mon? Yes, they are computers. Then whatis a computer?A computerisamachine whichstoreskno wledgeinitsmemoryanddoescalculationson thatkno wledge.Thisknowledge is stored in symbols; it is called data. Acomputerusually has a mon i

3、tor toshowresults.However,somecomputers can speak; these computers can be used for voice mail.Questi oning and an sweri ngWhat do youknow aboutcomputer? Electro nicmach inecapableofperform ingcalculatio nsand othermani pulati onsof varioustypes of data, un der thecontrolof a stored set ofin struct i

4、ons.1. 测试学生对计算机历史 的了解。2. 预测计算机的应用领 域。3. 对语篇理解进行预测。4. 多思考增加学习兴趣。1. 调动了学生的学习积极 性。2. 培养学生组织语言、运 用语言的能力。3. 帮助学生有效的进行知 识上的重建。 Amulti -functionelectronicdevice that canexecutein structi onstoperform a task. A device that acceptsin formati on,processesit, and supplies an output. A computer usually contains

5、 memory, a con trol un it, arithmetic and logical un its, and a means for in put and output. a programmable hardware comp onent that is con trolledby intern allystored programs and that can perform substa ntial computati ons(in cludi ngarithmetic and logic operati ons) without huma n intervention.A

6、computertypically con sists of one or more process ing un its, memory un its,andassociatedperipheralin put and output devices. Related to automatio n andelectro nicdataprocess ing.aimachineforperform ingcalculati onsautomaticallycalculator:an expert atcalculati on(oratoperati ngcalculat ingmach in e

7、s) A computeris a device ormach ineformakingcalculatio nsorcon trolli ngoperati onsthat are expressibleinnu mericalorlogicalterms.（四）阅读为全体学生进行有效阅读策1.略读了解计算机的演变培养学生的质疑意识，提高 略的点拨与指导，如略读、经历的几个过程。学生分析问题和解决问题的寻读、预测和分析性阅读。2.按4人一个小组，把学能力。1.Skimmi ngforthe生分成 A、B、C、D.gen eral idea of each若干个小组进行相关冋paragraph

8、题的讨论。讨论后每组2. Ask students toread推出一个冋学回答，答the passage fast to对给1分，答错扣1分,the key words and在黑板左上角公布各小gen eral idea of each组成绩。paragraph and fill in3.到下课时各小组的竞赛the chart.结果一目了然，给予获3. Scanning for detailed胜的小组以精神或物质4in formati on.奖励，以激发学生的学习主动性和积极性。4. Get Ss to tell the characteristics of the passage, s

9、uch as the type of writi ng, and the ten se. careful readi ng5. Read the text again to complete the table, which lists all the nu mbers in the text.（五）播放本文录音并让学生跟读让学生翻到text，播放课文 边听边读通过听录音让学生在视觉和录音听觉上对课文有进一步的感性认识，不但巩固了所学知 识，也训练了学生的听力（六）拓展（访问）Supposeoneisa访问计算机的发展史，以及通过访问式练习，巩固了单journalistand the other计算机在生活中方方面面的兀词汇、