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How Do You Use the Internet教学设计章节名称八年级下Unit 4 lesson19学时1教材分析本课是冀教版英语八年级下册第四单元第一课时How Do You Use the Internet，教材以使用计算机上网为话题,从学生熟悉的日常活动出发来探讨计算机与网络的功能，认识网络对我们学习和生活的积极作用和消极影响,鼓励学生利用网络了解世界探索未知,要求学生学会科学合理安全地上网。通过解读课文对话和设置针对性练习来学习if引导的条件状语从句，熟练掌握一般现在时和一般将来时的运用，正确使用情态动词can和must。课文由“想一想”、“主题对话”和“一起做”三部分组成。在“想一想”这一部分，预设的两个问题引出了本课的主要内容和两个关键词“computer”，“internet”,为课文学习做了有效铺垫；“主题对话”则重点围绕使用电脑上网能干些什么展开讨论和设想，相关的词汇、短语、句型次第呈现，尤其以“if”引导的条件状语从句反复出现，成为本课学习的重点和难点。在“一起做”这一部分，分别设置了“快速阅读找信息”、“用动词正确形式填空”以及“综合实践运用“三道练习，既注重知识巩固，又着眼能力培养。本课时是一般将来时态和一般现在时态的综合运用，为正确运用这两种时态提供场景，也为条件状语复合句的学习奠定基础，具有承前启后的作用；就整个单元来说它既是本单元的基本语言内容，又为本单元的知识扩展和语言综合运用奠定基础。 学情分析八年级学生已经学过一般将来时态和一般现在时态，已了解了这两种时态的肯定句、否定句、一般疑问句等形式。首次接触if引导的条件状语从句，在接受上会有一些难度，这就要求教师在引入的时候要多从学生的角度思考。在口语运用中判断if条件句的主句、从句也许会存在一定的困难。在运用一般将来时和一般现在时态也许会产生混淆。教学目标一、知识目标1.Words and expressions in this lesson .2.Target language :I used to have a desktop computer.How does the Inteernet help you?If you work hard , youll complete your research. .3.掌握一般现在时和一般将来时两种时态的运用。4.学习用if引导的条件状语从句:。二、语言技能目标（1）能用if引导的条件状语从句来作出假设，用will来谈论结果，如：If you do, youll be late.（2）能用“I think Im going to”来表达作出的决定，如：I think Im going to the party with Karen and Ann.语言知识目标（1）正确运用if引导的条件状语从句，如：If you do, you will have a great time.（2）运用what对if引导的句子所产生的结果进行提问，如：What will you do if you have a computer?三、情感态度目标（1）激发学生对科学的热爱和对英语学习的兴趣；（2）认识网络对我们学习和生活的积极作用和消极影响，引导学生科学合理安全地上网。教学重难点 重点：（1）巩固和运用运用一般现在时和一般将来时。（2）学习if引导的条件状语从句。难点： 条件状语从句中主句和从句的判断及时态的运用。 教学方法创设情境法、口语交际法、Pairwork。 通过创设开放式教学情境，两人一组合作交流，使学生在具体的语言环境中感受if 条件状语从句的用法。信息技术应用录音，多媒体课件教学过程教学内容教学活动设计意图Step 1: Leading-inGreet the class.Introduce the new unit.T: Today we will begin a new unit with its title“The Internet Connect Us.What is the Internet. do you know?S:Yes,The Internet is 因特网 in Chinese.T: Right.What does“connect”mean？S：连结。In English it means“put together”. T:Quite well!But how does the Internet connect us?The students may answer the question in different ways. The teacher show the class a desktop,.Then the students may realized that the Internet connects people by connecting their computers.由师生对话自然导入新课。很快接近主题，容易激发学生的学习兴趣Step 2:discussionLook at the pictures in lesson 19,Divide the class into four groups to discuss the THINK ABOUT IT questions and make a list.of What can you do on a computer? How do you use the Internet?Then ask each group to give a report about their discussion.初步感知课文内容，营造新知学习氛围，再现学过的与本课相关的词汇和短语。Step 3 Iearn the new words and phrasesShow the class the vocabulary list. Encourage the students to learn the new words themselves.check to see if they have any difficulties in pronunciation.Help them with their problems.After that,explain the meaning and usage of the key words and phrases.培养学生学习英语的基本能力，学习掌握与电脑和互联网相关的新词汇,为下一步朗读和学习课文对话做好准备。 Step 4 ReadingInstruct the students to read Lesson 19 and do Exercise 1 independently.Check and discuss the answers as a class.Ask them to underline the contents they dont understand.以任务为引导，安排自学，发现问题。贯彻“先学后教”这一基本思想Step 5 PresentationPresent the adverbial clauses with“if” If you have some money, what will you buy?(I will buy a computer) :What will you do if you have a computer?(Iwill send e-mails to my friends) You go to school by bike because your home is very far from the school. If you walk to school, what will happen?(I will be late for school)If you are late for school , what will happen? (I will have to say sorry to the teacher.)T:if引导一个条件状语从句当主句是一般将来时时，if引导的从句必须用现在时来表示将来可能发生的动作或存在的状态。 If Igetup late, Iwill belate for school. If Igetenough exercise, Iwill behealthy.从句（一般现在时态） 主句（一般将来时态） Iwill betired if Iwatchtoo much TV. Iwill behappy if Ihelpothers.主句（一般将来时态） 从句（一般现在时态先以口头语言设置情境,引出句型,然后师生一起分析主、从句的特点，再设计相应练习，让学生逐渐掌握条件状语从句。Step 6 Reading and discussionPlay the tape.Students listen and read along.After that,instruct the students to read the dialogue in groups of three.Have the students discuss the prepared questions in small groups to seeIf they really understand the contents of the text.As the students to do Exercise 2 independently.Check the answers as a class.进一步理解课文，Step 7 TaskT: Maybe some students will play computer games after class. I like surfing the Internet. If you surf the Internet, what will happen? Please work in groups of four or five.Ss: .T: I think you will learn a lot by surfing the Internet. But playing computer games a lot is bad for you. You should study hard and then you will be happy.讨论上网对学生的影响。 Step 8 Grammar Focus.Ask each group to write down as many sentences like those in the grammar focus as they can.让学生观察黑板上的句子并总结出if条件句中，主句用一般将来时态，从句用一般现在时态。课堂小结T: What have you learned in this lesson? Who can sum up ?S1: .T: Perfect! You are really the best. Homework for today:HomeworkComplete Exercises 1 and 2 in the Workbook Lesson 19.Learn the new words and phrases by heart.板书设计：Unit 5 If you go to the party, youll have a great time!A: I think Im going to .B: If you , youll If Igetup late, Iwill belate for school. If Igetenough exercise, Iwill behealthy.从句（一般现在时态） 主句（一般将来时态） Iwill betired if Iwatchtoo much TV. Iwill behappy if Ihelpothers.主句（一般将来时态） 从句（一般现在时态）教学反思：本课对教材和学情做了深入的分析，设计上思路非常清晰，由浅入深，教学任务设计贴近学生生活，有趣又实用，且难易程度环环相扣，层层递进，教师带来学生一步一个脚印，渐渐近入任务，让学生非常自然的领会本课的知识点。If引导的条件状语从句，是本节课的重难点，通过对话、听力、讲解、仿照句型编对话等多种练习方式，使学生能够通过观察和对比总结出If条件句中，主句用一般将来时态，从句用一般现在时态。改进之处，课堂上应该关注更多的学生，让不同层次的学生都能获得进步。
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