内容正文:
Unit 5 Lesson 3 Computers and the Internet教学设计
科目
英语
年级
八年级下册
课时安排
1课时
核心素养目标
掌握与电脑、网络相关的词汇(computer, internet, homework, research, convenient等),理解一般过去时被动语态的结构(was/were + 过去分词),能完成对话问答、语法填空和口语表达。
文化意识:了解不同时代学生的学习工具差异,感受科技发展对学习的影响,树立合理使用网络的意识。
思维品质:通过对比、讨论,培养辩证看待网络利弊的逻辑思维,提升信息归纳能力。
学习能力:通过小组合作、情境任务,掌握自主学习和合作探究的方法,提升英语学习兴趣
教学重难点
教学重点: 掌握对话核心词汇、句型,理解对话内容并完成问答。掌握一般过去时被动语态的结构和用法,完成语法填空。能围绕“电脑与网络”主题进行简单口语交流。
教学难点:准确区分主动语态与被动语态,正确使用一般过去时被动语态。辩证分析网络的利弊,用英语清晰表达观点。贴合学生水平,降低语法学习难度,提升口语输出的流畅度。
教学过程——主要思路
Step 1: Warm-up & Lead-in
活动1:
教师播放 1.5 分钟学习工具变迁趣味短视频(包含古代竹简、近代印刷词典、现代电脑 / 平板、未来智能学习设备等画面),视频暂停在关键工具画面,学生完成 “双任务”:
任务 1:抢答工具名称(用英文):Printed dictionary! / Computer! / Tablet!
任务 2:用 “基础句型” 描述工具的使用场景与时代特征(教师提供支架,初步渗透被动语态):
In the past, people used ____ (printed dictionaries) to look up words.
Now, computers are widely used for homework. Printed dictionaries were used by our parents.教师边听学生回答,边板书核心词汇(printed dictionary, computer, internet, research, convenient)和被动语态雏形(were used),带读 2 遍,强化认知。
活动2:
教师呈现 “Past vs Present” 对比表格,学生分组快速填写 “学习工具 + 核心功能”,引导学生理解:Learning tools have changed a lot. Many old tools were replaced by new ones. 自然引出本节课主题与语法核心。
设计意图:短视频情境更具代入感,双任务设计兼顾 “识别” 与 “表达”,激活生活经验的同时初认核心词汇与被动语态;对比表格让学生初步建立 “工具变迁” 的逻辑认知,为后续对话学习和语法运用铺垫。
Step 2: Pre-reading
活动 1:
教师呈现核心词汇(computer, internet, research, convenient, invention, printed dictionary),结合学习工具场景进行 “词汇 + 短语 + 被动语态句型” 的联动教学:
printed dictionary:搭配短语 “look up words”,被动句型:Printed dictionaries were used to look up words in the past.
computer:搭配短语 “do research/finish homework”,被动句型:Computers are widely used for research now, but they were not used by students many years ago.
convenient:搭配短语 “make study convenient”,句型:The internet makes study more convenient. It is convenient to use computers for homework.
学生跟读短语与句型,教师纠正发音(如 research /rɪˈsɜːtʃ/,convenient /kənˈviːniənt/);
教师说词汇,学生抢答对应的被动语态短语,如T: Printed dictionary! S: Were used to look up words!。
活动 2:
教师呈现课文标题与对话配图,引导学生以 “2 人一组” 完成迷你预测,在练习本上写 2 个预测问题(教师提供支架,融入被动语态):
What tools did Jenny's mum use for homework? / What does Jenny use the computer for?
Which tools were used by students in the past? / Why are computers widely used now?
邀请 2 组学生分享预测问题,教师板书核心预测点,激发阅读兴趣。
设计意图:词汇与语法联动教学,避免孤立记忆;小组预测让每个学生都有思考机会,预测问题更具针对性,同时初步感知被动语态的使用场景,为后续学习做好铺垫。
Step 3: While-reading & Grammar Focus
活动 1: While-reading
阅读策略指导:教师讲解 “精读找细节 + 语法提取” 策略:Read the dialogue carefully, find the key information about Jenny and her mum's learning tools, and circle the passive voice sentences.
分层阅读任务:
基础任务:找出对话中 Jenny 和妈妈使用的学习工具,完成简单表格:
人物
学习工具
核心功能
Jenny
computer/internet
do homework, research
Mum
printed dictionary, library
look up words, do research
提升任务:在上述任务基础上,圈出对话中的被动语态句子(如Everything was written by hand on paper. Computers were not widely used.),并分析结构。
全班核对答案,教师带领学生分析对话核心句,重点讲解被动语态在语境中的含义:“强调工具被使用,而非谁使用”。
活动 2: Grammar Focus
教师结合对话中的被动语态句子,提炼结构:主语 + was/were + 及物动词的过去分词 (+ by + 动作执行者),并讲解关键要点:
主语单数 / 不可数 → was(如 The dictionary was used...);
主语复数 → were(如 Computers were not used...);
by 短语可省略(强调工具本身时);
常见不规则动词过去分词:write-written, use-used, do-done, find-found。用 “主动 vs 被动” 对比表格强化理解:
主动语态(强调使用者)
被动语态(强调工具)
People used printed dictionaries.
Printed dictionaries were used.
Students did homework by hand.
Homework was done by hand.
分层语法操练:
第一关:将主动句改为被动句(主题相关,难度较低):① People used printed dictionaries to look up words. → Printed dictionaries were used to look up words.② Students wrote everything by hand. → Everything was written by hand.
第二关:根据对话内容填空(用所给动词的适当形式,被动语态为主):
1 In Mum's days, computers ____ (not widely use). So homework ____ (do) by hand.
② Printed dictionaries ____ (use) by many students in the past, but now they ____ (replace) by computers.
第三关:用被动语态描述一种过去的学习工具(如The abacus was used to calculate numbers. It was invented in China.)。学生完成后,小组核对答案,教师重点讲解易错点(如不规则动词过去分词、主谓一致)。
设计意图:对话与语法深度融合,让语法学习有语境支撑;分层操练让不同水平学生都能参与,主题相关的练习让语法运用更具意义,避免机械训练。
Step 4: Post-reading & Practice
活动 1:
教师提出辩论话题:“Are computers and the internet more helpful than harmful for students?” 4 人一组,分为正反两方(正方:More helpful. 反方:More harmful.);
教师提供分层辩论支架(融入被动语态):
基础层支架:I think ____ (computers) are more helpful. They help us ____ (do research easily). Many students use them for homework. / I think they are more harmful. Too much time is spent on games.
提升层支架:From my perspective, computers are more helpful. First, a lot of information can be found on the internet. Second, homework is finished more quickly with computers. Although some problems are caused by the internet, its advantages are greater.
小组讨论 2 分钟,进行 1.5 分钟迷你辩论,教师引导学生辩证看待网络的作用,强调 “合理使用”。
活动 2:
教师布置写作任务:“Write a short passage about the changes of learning tools, using at least 2 passive voice sentences.” 学生独立完成,教师提供分层写作支架:
In the past, ____ (printed dictionaries) were used by students. Now, ____ (computers) are widely used. They make study more convenient.
Learning tools have changed a lot. Many years ago, printed dictionaries and libraries were used for research. Now, computers and the internet are used by most students. With the development of technology, more new tools will be invented.
邀请 2-3 名不同水平学生分享短文,教师点评,重点表扬正确运用被动语态、表达流畅的学生。
设计意图:辩论环节培养学生的批判性思维和逻辑表达能力,分层支架降低表达难度;创意写作让学生综合运用所学词汇和语法,实现 “输入→输出” 的有效转化。
Step 5: Summary & Homework
小结
教师在黑板上绘制核心知识思维导图,分为 4 个板块,让学生举手回答,教师填写内容,学生成为小结的主体:
Key Vocab:核心词汇(computer, internet, research, convenient, printed dictionary);
Grammar:一般过去时被动语态(结构:主语 + was/were + 过去分词;
用法:描述过去被使用的工具 / 事物;
易错点:不规则过去分词、主谓一致);
Dialogue Core:Jenny vs Mum's learning tools;
Core Value:Use computers and the internet properly!学生根据思维导图,齐读核心知识 2 遍,强化记忆。
作业布置
必做:① 抄写核心词汇和被动语态结构,每个词汇搭配 1 个短语,每个结构仿写 1 个主题相关句子;
② 完成课堂上的短文写作,至少补充 1 个被动语态句子。
选做:① 采访家人,了解他们学生时代的学习工具,用英语写 5 句话描述(包含 2 个被动语态);
② 模仿课文对话,编写一段自己和同学关于 “学习工具” 的对话(5-6 句,包含 3 个被动语态)。
设计意图:学生主导思维导图小结,培养归纳总结能力;分层作业让不同水平学生都能完成,实践性与创新性作业让英语学习贴近生活,同时强化被动语态的巩固与活用。
Step 6: Blackboard design
Lesson 3 Computers and the Internet
📚 Key Vocab & Phrases 📖 Grammar: 一般过去时被动语态
• computer / internet 结构:主语 + was/were + 过去分词 (+ by...)
• research / convenient 🔍 易错点:
• printed dictionary ① 不规则过去分词:write-written
• do research / look up words ② 主谓一致:单数→was/复数→were
🎯 Dialogue Core 💬 Useful Sentences
• Jenny: computer → homework/research 1. ...was/were used for...
• Mum: printed dictionary/library → look up words 2. It is convenient to do...
3. ...have changed a lot.
🌐 Core Value
Use computers properly!
Balance study and entertainment!
1 / 2
学科网(北京)股份有限公司
学科网(北京)股份有限公司
学科网(北京)股份有限公司
学科网(北京)股份有限公司
学科网(北京)股份有限公司
学科网(北京)股份有限公司
学科网(北京)股份有限公司
$