英语：unit 4 《when was it invented？》教案(1)(鲁教版九年级).doc

Unit4 When was it invented?
单元教案
单元概览
课标要求
通过Pairwork 和Groupwork形式熟练掌握本单元重点句型及相关常识，理解重点词汇、句型在上下文中的作用。

本单元以发明物为话题，谈论了不同发明物的历史，让学生了解各发明物发明的时间，怎样发明的，谁发明的，它的用途是什么。

情感态度与价值观：
通过本单元的学习，弄清楚世界上一些对人类有着重大意义的物品，尤其是中国古代的四大发明，从而培养自己的爱国主义精神。

课时分配：共4课时
重难点密室：被动语态
The First Period
课型：词汇突破，聚焦语法
备课人：崇文中学：李瀑
一、教学目标
A、知识目标：1、四会词汇：mistake nearby island thousand legend smell century invent adjustable operate electric sweet salty crispy sour thin according ancient boil remain notice produce pleasant taste throw special be used for fall into
2、拓展词汇：operation production casual dressy
3、语法：The Passive Voice
B、能力目标：Enable to read and recite the words of Unit9 and make sentences using the Passive Voice
二、教学的重点难点：Words of Unit9 and the Passive Voice
三、教学准备：recorder ,word-cards
四、教学方法：任务型教学
五、教学过程：
Step1 Revision: Check the words of Unit8
The teacher asks one student to say the Chinese meaning of five words and another student say English. Then another pair. Finally the teacher says: You’re all excellent. Can you want to learn more words? Now let’s learn the words of Unit9.
Stept2 New Teaching
1, First let the students try to pronounce the words, then ask them to read the words one by one.
2, Listen to the tape and then read after the teacher. Then read by themselves and remember them. Finally check in groups.
3, Find out nouns, verbs and adjectives.
4, Explain the words by a flashcard.
1), invent –invention—inventor
Edison was a great American inventor and he invented many things.
2),operate—operation operate on
The doctor operated on the baby’s e yes
Can you operate the machine?
3),mistake make a mistake by mistake
I made some mistakes in the English test.
4),ancient(adj.)
China is an ancient country .She has a lot of inventions. We love our country.
5),remain(v.) +adj./adv./n.
He remained silent
How long will you remain here?
6),produce (n.& v.)生产、制造，农产品---product 产品，指工业生产的物品---production Australia produces wool and meat.
It says on the bottle ‘Produce of France’.
7), notice (v.& n.) notice sb. do/doing sth.
I notice him entering the office.
5,Groupwork: Remember the words and check each other.
Step3, Grammar Focus
When was the car invented?
It was invented in 1885.
What are they used for?
They are used for seeing in the park.
Step4, Exercise
一、Fill in the blanks
1,The heated ice cream scoop is used for ____really cold ice-cream. (scoop)
2,The shoes with ____heels were invented by Jayce Coziar. (adjust)
3,Oh,I think you have put too much salt in the spoon.. It tastes quite _____(salt)
4,How many ____can you see in the shop?(abacus)
5,Do you think who the most famous ____is in the world?(invent)
6,What do you think is_____ invention? (useful)
7,The ____on the tree fall in autumn.(leaf)
8,The customer thought the _____weren’t thin enough.
二、句型转换：同义句改写
1,We covered the Christmas tree with lights.
The Christmas tree ____ ____ _____lights.
2,His father bought a computer for him last month.
A computer ____ ____for him last month.
3,Who invented the alarm clock ,do you know?
Who ___the alarm clock____ _____,do you know?
4,People burn a lot of young trees every year.
A lot of young trees_____ _____every year.
5,Did Mr. Wu teach you English last year?
____you ____English _____Mr. Wu last year?
Step5.Summary
1,Words
2,Grammar:The Passive Voice: be +p. p
Sept6. Homework: Remember the words and do exercise
板书设计：
Unit 9 When was it invented?
The First Period 词汇突破，聚焦语法
1，Words: invent ,operate ,mistake, ancient, remain ,notice, produce, salty. 2，Grammar: The Passive voice: be +p. p
The Second Period
一、教学目标
1．学会谈论重要发明的历史及用途；
2．针对各项发明的用处及特点，发表自己的看法，并说明理由；
3．学会使用被动语态进行语言交际；
1),What’s the most useful invention?
2),Who invented it?
3),When was it invented?
4),What is it used for?
4．开阔学生的思路，培养学生的创造精神；
二、教学的重、难点：运用被动语态进行听说练习
三、教学准备：tape-recorder, flashcards
四、教学方法：任务型教学
五、教学过程
Step1.Revision
1. Check the words learned last class.
2. Review the grammar
Step2. New Teaching
1. Show a picture of a TV and ask :
What is it?
Who invented it?
When was it invented?
What’s it used for?
Perhaps the students don’t know the time that was invented. Show the othe r flashcards, then play the tape and match the inventions with the date. Finally discuss who invented them.
2. Some students’ shoes look beautiful. I think they’ll be better if they have adjustable heels. Now look these useful inventions. listen to tape and match the items in the columns(flashcards). Then ask and answer in pairs.
3. Everyone likes to eat chips. I also like to eat. But they invented by mistakes. Do you want to know? Now let’s listen and circle “T” or “F”. Listen again and complete the senten ces (flashcards). Then work in groups.
4. Can you think of a problem or a job you would like to solve? Can you think of a way to make your life or your work easier? Brainstorm some ideas for useful inventions. Discuss in groups. Write and say:
What is it?
Who was it invented by?
What is it used for?
Then compare the inventions in class. Ask:
What do you think is the most interesting/ boring invention? Finally say why. Step3.Exercise: Say something about paper
Step4. Summary: The Passive V oice
be invented be invented by be used for
Step5.Homework: Say a bag and write it down.
板书设计：
Unit 9
The Second Period
课型：听说
1．Words: casual, dressy
2．The Passive voice:
be invented
be invented by
be used for
The period 3
一.教学目标：1.知标：light,bulb,microwave.crispy.salty,sour,by mistake,chef,sprinkle,by accideng.ancient,legend,
beverage,according,ancient,legend,boil,bush,fall into,remain,produce,pleasant,in this waypie,flying,
disk,bakery,throw
2.能标:被动语态运用表达句意3 情感目标：培养创造精神
二.教学重难点：It was invented by..... 1.I think the most helpful invention is the light bulb. 2.I\'d like to have a radio because I could listen to music all day. 3.The most popular drink in the world,was invented by accident
三.教具准备：a recorder 多媒体
四.教学方法：（task）任务型教学先学后教，当堂训练
五.教学详案：（教学过程）
Step1 Play the tape about 3a (Fist doing it)
Step2 Read 3a (师生分领读，齐读，分组读，个人读)
Step3 (需板书重点)The most popular drink in the world is the light bulbI think it would be better to have...
Step4 Let the students complete the list (3a) Discuss your opinions in activity 3a with your partner. Ask some students to answer the question about 3a.For example“What is the article about?”etc
Step5 Write an article using the notes in the box From pie plate to flying disk The flying disk was invented by college students.
Step6 Pairwork Let the students ask about their some inventions, then let them see their inventions.
Step7Do exercise No1.Write an article using the notes in the box Who : college students What : metal pie plate,flying disk When : 1950s Where: bakery Bridgepert,Connection Why : new toy How : students eat pie,throw pie plates Today: clubs,magazines,festiual The flying disk was in vented by college students_____________________________ No2. When you are alone in a island choose five inventions you would like to have on it. Tell the class.
六.作业：home work(仿3a写蔡伦造纸)Paper was invented by Cailun
七.板书设计：(重点词汇及句子) 1.Light bulb,telescope.microwave oven. 2.be invented by...(for ,as etc) The most popular drink in the world (after water) was invented by accident. 3.Helpful inventions : light bulb ,telephone, television Annoying invention : alarm clock .etc
The Third Period
一教学目标
1 知识目标1) by accident beverage according ancient boil bush fall into remain produce
pleasant pie throw abacus century
2) bakery Bridgeport Connecticut flying disk lemon binoculars
2 能力目标掌握一般过去时被动语态的含义、构成及用法，弄清主动语态与被动语态的差异。

3 情感目标养成勤于思考，善于总结的好习惯，培养爱国主义精神。

二教学重难点
When was it invented?
It was invented by….
三教具准备多媒体
四教学方法Task-Based Language Teaching
五教学进程
Step1 Organization
1 Greetings with each other
2 Check the homework of last lesson
Step2 Presentation
1 T: Please read the instructions and then read the article once all the way through, Please circle any words or phrases that you don’t understand.
Ss: Read the article and circle the words or phrases.
T: Please raise your hands and read to the class any words or phrases you don’t understand.. ( If possible, the teacher had better ask other Ss to explain or define the new words. And ask Ss to say in their own words any sentences that other Ss don’t understand.)
Ss explain the words or the phrases.
2 After the Ss read the article, answer these questions.（出示幻灯片）
1）What is the article about?
2）When was it invented?
3）Who was it invented by?
4）How was it invented?
3 Read the instructions to the class, explain that Ss can combine more than one point into one sentence.
Ask Ss to complete the work in pairs, then ask a few Ss to tell the class about the partners they have interviewed.
Step 3 Pair work
Imagine you are a businessperson, ask your partner questions about his or her invention. Then try to sell your partner’s invention to the class.
Step4 Practice
Ask Ss to fill in the blanks on their own.
crispy sweet salty sour
1 I don’t like eating chocolate. The taste is too ____.
2 Mom added salt but it still wasn’t ____ enough.
3 I prefer lemons to oranges. I like the ____ taste.
4 She likes ____+ cookies. They are hard, dry and easily broken.
Step 5 利用幻灯片，出示abacus, umbrella, binoculars, camera, bicycle
Ask the Ss to find out when these things were invented, then write paragraphs about them, ask several Ss to read their paragraphs to the class. (T: Correct the answers.)
六作业设计write a composition （写一篇80字左右的短文）
爱迪生出生于美国，是一位伟大的发明家。

他在学校仅仅呆了三个月，总是问一些与功课无关的问题。

后来他母亲把他带回家，并且自己教他，发现他是一名很好的学生。

他在10岁时建立了自己的化学实验室，12岁时创办了自己的报纸，在16岁时救了一名在铁轨上玩耍的小男孩，22岁时到纽约成为了一名发明家。

他从不放弃，直到成功。

1931年去世，一生共有1093项发明。

七板书设计
The Fourth Period
●一教学目标
●1知识目标：学会谈论发明的历史。

●2能力目标：认识一些发明的事物。

●3情感目标：树立科学观念，培养积极探索、勇于创新的精神。

●二教学重难点
●1重点：被动语态的运用。

●2难点：能够自如地谈论发明的历史。

●三教学准备
●一些发明的实物、录音机
●四教学方法
●任务型教学法
a)五教学进程
1、Let Ss do 1
Orispy,sweet,salty,sour
A)I don’t like eating chocolate.The taste is too ____.
B)Mom added salt but it still wasn’t____enough.
C)I prefer lemons to oranges. I like the_____taste.
D)She likes _____cookies. They are hard ,dry and easily broken.
2、The teacher see around in the classroom.. Then give them right answers.
3、Pairwork ; Take out inventions
4、Let Ss find out when these things were invented and then write paragraphs about them.
Abacus, umbrella, binoculars, camera, bicycle
The dates and plates for each of these inventions are widely disputed. More important is for the students to do a bit of research and share interesting information about the inventions.
A)Umbrella: about4000years ago in Assyria,China and Egypt.
B)Telescope:1609 Galileo in Italy.
C)Binoculars:1854 Ignatio porro in Italy.
D)Camera:1827 by Joseph Nicephore Niepce who took the first picture.
E)Bicycle:1880s in England.
5、Let Ss read paragraphs, then explain.
6、Listen to the reading
7、Read the text with the following questions.
a)Who invented basketball?
b)Why were the BerlinOlympils important for basketball?
c)What is the aim of basketball?
d)Name a professional basketball organization in America and what it does?
8、Let Ss answer the questions and then encourage them to find out the new questions of the reading.
9、Next finish this exercise.
10、Complete the mind-map with information from the reading.
11、Look at the book
12、Sum up.
13、Do exercise
14、情景展现
情景1 询问发明时间
A:When was the telephone invented?
B:I think it was invented in 1876.
情景2 询问发明者
A:Who were they invented by?
B:They were invented by Julie Thompson.
情景3 谈论用途
A:what are they used for?
B:They are used for seeing in the dark.
补充对话
A:Excuse me!_______
B:They’re heated battery-operated sneakers.
A:_______
B:They were invented in 1870 .
A:________
B:By Julie Thompson.
A:________
B:They’re used for seeing in the dark.
A:How interesting! Thank you! B:________。