Whenwasitinvented教案

1、Unit 9 When was it invented学案式教学设计【教材版本】人民教育出版社 九年级英语【学习内容】 Grammar Focus, 3a, 3b and 4 of Unit 9 When was it invented ?【学情分析】 本节课是第九单元的第二课时 , 学习任务是完成课文 Grammar Focus, 3a, 3b and4 部分的学习。 本单元要求学会谈论重要发明的历史及用途， 然后针对各项发明的用处及特 点，发表自己的看法，并说明理由。 话题一直是围绕着历史上和日常生活中的重要发明，通 过使用“ Passive Voice形式的句型，循序渐进地展开讨论。课本

2、设计的活动情景能够自然地 引发学生的好奇心， 大家积极地投入到话题讨论中， 寓教于乐， 容易引起学生的兴趣； 同时， 它也有利于开阔学生的思路， 培养创造精神， 展开丰富的想象力， 人人都能成为 “小发明家 。学生在第一课时学习了本单元的 Section A 中的 1a 至 2c 部分，基本能听懂、会说本单元要 求掌握的部分重要词汇； 在图片， 相关信息等提示的帮助下， 能较好地运用重要句型和掌握 主动语态和被动语态及相互转换。 但是本班的学生两极分化比较严重， 有一部分学生基础知 识不牢固， 前面提到的学过的单词和句型就忘得差不多了，特别是对于课文中的语法 主动语态和被动语态，被动语态的一般

3、现在时和一般过去时混为一谈。所以教师在课堂教学中应面向整体， 及时复习相关的知识，包括重要词汇和句型， 前后知识的衔接。 同时在设计上要注意活动的多样性， 激发他们的兴趣， 让每一位学生能得到不同程 度的收获。【单元整体目标】重点词汇： salty, sweet, sour, crispy, pleasant, potato chips, slipper, leaf, fire, scoop, light bulb, microwave oven, abacus, camera, beverage, be invented by, be used for, by mistake, by acc

4、ident重点句型： When was the telephone invented? I think it was invented in 1876. 技能目标：能够谈论发明的历史和用途。能够对生活中的发明发表自己的看法。能够解决生活问题，设计新发明。情感目标 :充满想象力，发挥创造能力。三、重点难点重点：讨论重要发明的时间、发明者和用途，学习使用句型“When was the telephoneinven ted? ” , “ Who was it/were they inven ted by?” , “ What is it/aTeW语6 used for?难点：如何描述一项新发明的来历

5、和用途【课时安排】6课时(新课5课时，复习1课时)第一课时:Section A: 1a, 1b, 1c,2a,2b, 2c,第二课时:Section A: grammar focus, 3a, 3b, 4第三课时：Section B: 1a, 1b, 2a, 2b, 2c第四课时：Section B: 3a, 3b, 4a, 4b第五课时： Self- check and readi ng第六课时复习【本课时教学设计】I .Teach ing Aims and Dema nds.Knowledge Objects(1) Key Vocabularybulb, light bulb, micro

6、wave, ove n, microwave oven, isla nd(2) Target Lan guageWhat is the microwave ove n used for? It is used for cook ing .What do you think is the most helpful inven ti on ? I think the most helpful inven ti on isWhy is that ?Because it helps/gives2. Ability ObjectsTrain the students writing and speaki

7、ng skills with the target Ianguage.3. Moral ObjectsIf you are alone on a tiny island, what inventions would you like to have on the island with you? n .Teaching Key Points1. Talk about the helpful inventions and annoying inventions.2. Guide the stude nts to discuss their opinions on the inven tio ns

8、.川.Teaching Difficult Points1. Discuss the opinions on the inven ti ons.2. Use the target Ian guage to describe the inven ti ons.IV .Teaching Methods1. Pairwork2. GroupworkV .Teaching AidsSome pictures of the helpful inven ti ons and annoying inven ti ons.【学习辅助材料】PPT课件W .Teaching Procedures【教学程序】Tea

9、ching and earning stepsLear ning contentsT s activitiesSs activitiesPurposeTime(1)（从有关T: What s the invention? Who1.Stude nts an swers上课初提5（2）Part 3aWords:light1. T: Look at thepicture.What s this?1. Ss :闹钟。通过图片呈现新单词，创设情境来6Prese ntati onbulb microwave2. T: And this?2.Ss:电灯泡。引发讨论：light bulb （板书）Which

10、 doyou thinkoven（PPT）3. T: What s this?are helpfulinven tio ns/amicrowave oven（板书）nnoying3.Ss微波炉。inven tio ns?（2）4.T:The inven ti ons can be引导学生学Prese ntati ondivided into会发表自己Revisi on发明的话nven ted the inven ti ons ? Can youthem.题入手，增加学生学tell me ?习的兴T:The inven tors are great.Are you趣）great?2.Ss say

11、 yes.T: Let s have a competition between two groups. Boys are Group 1, girls are Group 2. Let see which group will be the winner, OK?s1. Tell Ss the requireme nts .T:First revise the passivevoice.Look at the in formati on andfinish the bla nks.2. Ask two stude nts to finish it.3.Ss do it by3.T check

12、s the an swers.themselves.老师奖励。）4.Ask Ss to read the sentences after（PPT）the teacher.4.Ss read themtogether.出疑问， 引出比赛 要求和奖 励办法， 能让学生 对学习充 满积极 性。复习旧 知，为接 下来学习 新知做铺 垫。这一 过程不但 可以很好 地考查学 生上节课 所学知 识，及时 发现问 题，查漏 补缺。helpful inven ti ons and annoying inven ti ons.l think the computer is a helpful nven ti on

13、. The gun is an annoying inven ti on. Which do you think are helpful nven ti ons/annoying nven ti ons?4. Ss discuss thequesti ons.的观点。(3)PracticePart 3a.(PPT)1. T: Make a list of helpful nven ti ons and annoying nven ti ons.(PPT)2. Ask two stude nts to come to Bb to fin ish 3a.(板书)3. T checks the an

14、 swers.(老师奖励。)Ss fin ish it.通过这个 活动激发了 学生的表现 欲和挑战意 识。5(4)Prese ntati onPart 3b(PPT)课件设计说明： 教师播放课件， 呈现some nvention s.图片旁注有单 !词。1. T shows the PPT.2. T: Look at thesenven ti on s. I think the most helpful inven ti on is the computer.Because it helps people search the n formatio n. Which do you think

15、is the most helpful nven ti on.Why is it?(PPT呈现)Which do you think is the most helpful inven ti on.Why s it?3. Ask two Ss to an swer the营造英语氛 围，鼓励学 生大胆发 言。6Practice(6)Grammar FocusPrese ntati onGroupwork(PPT)Part 4(PPT)questi ons.I.Ask Ss to practice 3b inpairs.2.Ask several groups to act itout.（老师奖

16、励。）T:We have lear ned thepassive voice.What is thepassive voice? Do youknow?Ask some Ss to an swer it.T sums up grammar abouthe passive voice.(show PPT)T:Look at thepict ure.Im agi ne you arealone on the isla nd. Whatwould you like to have with1. Ss look at thePPT and discussthem.Ss think it about.S

17、s look at PPT.这也为下面的小组活动这一环节作了较好的铺垫。利用图片及生活中的发明，让 学生进行了 听，说方面 的训练。培养学生一定的语感。对所学的语法点进行归纳整理，让学生总结归律，做到灵活运用所学知识。鼓励学生发挥想象力，灵活运用所学句型，各 抒己见。6you?(PPT)Get the Ss to practice Part 4 n groups.Ask some Ss to act it out.(8)Exercise inclassT: It s time to do the exercise.(PPT)Give Ss several minu tes to do the

18、exercise.Ask 5 Ss to an swer them.T checks the an swers.Ss discuss it in groups.Ss fin ish itby themselves.设计适当的 练习题，既 能培养学生写”的能力，也可以 让他们再次 巩固新知。5(9) Assessme nt教师评价。对学生在活动中 的表现给予肯定和鼓励。T: How many stars have you got?Which group is the winner?Ss count the stars.评价让学生 明白自己在 本节课的收 获以及存在 的问题，明 确今后努力 的方向

19、。1(10) HomeworkWrite dowm your inven ti ons.(PPT)拓展学生的 思维，培养 他们的创新 意识。【板书设计】Unit 9 When was it invented?ight bulb A:What do you think is the most helpful inven tio nmicrowave oven B:l think the most helpful inven ti on isA:Why is that?B:lt helps/gives板书设计说明: 突出强调本节课的重点词汇和句型， 帮助学生灵活运用所学句型表达自己的观点， 能掌握被 动语态的用法及主动与被动语态的互换。【本课设计亮点】我从话题入手，激发学生的兴趣，让学生尽快进入状态。然后利用课件，复习旧知，温习上节课的所学内容，通过呈现的图片导入新单词的教学。词不离句，情景交融，生动形象。我先通过师生间的对话过渡到生生的操练，句型的操练是很有必要性的，让学生两人一组进行操练，接着，我又通过