2018年秋人教版九年级英语全一册Unit 6 When was it invented?全单元教案（5课时）

Unit 6　When was it invented?
Language Goal
【语言目标】
Talk about the history of inventions
Knowledge Goals
【知识目标】
Key Words
style，project，pleasure，daily，website，pioneer，list，mention，ruler，boil，remain，smell，national，trade，doubt，fridge，low，somebody，translate，lock，ring，earthquake，sudden，bell，biscuit，cookie，musical，instrument，sour，customer，Canadian，divide，basket，hero，nearly
Key Phrases
have a point，by accident，take place，without doubt，all of a sudden，divide…into，not only…but also…，look up to，the Olympics，by mistake
Key Sentences
1.—When was the telephone invented?
—I think it was invented in 1876.
2．—I think the TV was invented before the car.
—Well，I think the TV was invented after the car.
3．—Who was it invented by?
—It was invented by Whitcomb Judson.
4．—What is the hot ice－cream scoop used for?
—It's used for serving really cold ice－cream.
5．The telephone was invented by Alexander Graham Bell in 1876.
Key Grammar
Learn to use passive voice in past tense to talk about inventions.Learn the special questions and answers.
Ability Goals
【能力目标】
1.Develop listening，speaking，reading and writing skills by using the target languages.
2．Learn to talk about the history of inventions and ask when，who and what questions about the famous inventions and answer them.
Moral Goals
【情感目标】
1.With the help of this unit's study，students can learn about the important inventions and how they have changed the world and the life of human beings.
2．Learn from the inventors and work hard at our lessons.
Teaching Time
【课时】
Five periods
Period 1
Section A(1a－2d)
Period 2
Section A(3a－4c)
Period 3
Section B(1a－1e)
Period 4
Section B(2a－2e)
Period 5
Section B(3a－3b) & Self Check
本单元围绕“发明”这一话题，学习了解一些重要发明的历史，教学一般过去时的被动语态。Section A介绍了我们日常生活中的一些常见物品的发明历史，如电视、电话、拉链、茶叶等。内容上包括谈论它们的发明时间、被什么人发明、它们的作用和发展等；从语言结构上，学习被动语态的过去时，单元主题图由四副小图组成，呈现的是现代生活中的常见用品：电视、电话、电脑和小汽车。从运用I think it was invented before/after…讨论图片中物品发明的先后顺序开始，到听说训练本单元的重点语言结构：When was it invented？It was invented in…，Who was it invented by？It was invented by…，What was/is it used for？It was/is used for…不断深入学习，再进入阅读训练，训练学生的阅读技巧，学习拓展词汇和语言结构。Section A的重点是培养学生运用被动语态的意识，掌握更多的动词过去分词形式。Section B依然围绕发明创造这个话题，要求学生继续学习巩固相关的内容和语言知识。在语言技能方面，对听说读写的专项训练和综合训练在本部分里都有体现。在语言策略上，提出让学生学习使用思维导图，以加深对文章的理解和对知识的记忆。在听力训练过程中，需要学生运用反义词、信息综合判断等，训练捕捉信息、处理信息的能力。在阅读训练中，需要学生学习和掌握如何利用思维导图帮助理清、记忆阅读语篇中的相关信息，把获取的信息转换成图形来帮助记忆。积极运用阅读策略有助于学生更好地掌握文章要点和细节等信息，降低语篇的学习难度，也有助于培养学生主动学习的习惯。21世纪教育网
The First Period—Section A(1a－2d)
Teaching Important Points　【教学重点】
　Key words & phrases：
　style，project，pleasure，daily，website，pioneer，list，mention
think of，with pleasure，have a point
　Key sentences：
　1.I think the TV was invented before the car.
　2.—When was the telephone invented?
—I think it was invented in 1876.
　3.—What is it/are they used for?
—It's/They're used for…
　Key structure：
　S＋was/were＋past participle＋…
eg：The telephone was invented in 1876.
Teaching Difficult Points　【教学难点】
　★Practice passive voice in the past tense in listening and speaking.Learn when to use passive voice.21cnjy.com
Teaching Aids　【教学工具】
　A tape recorder，pictures，CAI or multimedia courseware.【21·世纪·教育·网】
Teaching Steps　【教学过程】
★Step 1　Leading in　【新课导入】
1．Greeting
Greet the class and briefly talk with the students about their things.What is your shirt made of?21·世纪*教育网
2．Discussing
Show pictures of the things.Discuss with the students，like this：www-2-1-cnjy-com
T：Where are Hongqi cars made?
S1：They are made in China.
Then talk about the computer，the TV，the telephone.21*教*育*名*师
3．T：Today we are going to talk about these inventions.
Which one of these inventions was invented first？Can you guess?
★Step 2　Cooperative inquiry　【合作探究】
1．Finish the task in 1a
2．Finish the task in 1b
①Read the instructions.
②Play the recording for the first time.
③Check the answers with the whole class.
④Play the recording a second time.
⑤Play the recording once more and students read after the teacher.21*cnjy*com
3．Finish the task in 1c
4．Finish the tasks in 2a－2b
①Use PPT or pictures.
②Play the recording for the first time.Students listen and number 1－3 in the order they hear.
③Tell the class to focus on the demand in 2b.
④Play the recording again.
⑤Complete the chart.
5．Finish the task in 2c
6．Finish the task in 2d
①Show a real zipper and teach the word.
②Ask the students to read the conversation in 2d with some who，when questions.
③Ask the class to read the conversation in roles，boys read Paul，and girls read Roy.Then change the roles.【21cnj*y.co*m】
④Ask questions to see how well they understand.
⑤Then ask two pairs to act out the conversation.
★Step 3　Homework
1．Role－play the conversation in 2d and make a new one.
2．Write the sentences about the three inventions in 2a，using is/are used for.
3．Translate the following sentences into English.
(1)电话是1876年发明的。
________________________________________________________________________
(2)汽车是什么时候发明的？
________________________________________________________________________
(3)小发明改变了世界。
________________________________________________________________________
Board Design　板书设计
Unit 6　When was it invented?
Section A(1a－2d)
telephone：1876　car：1885
television：1927　personal computer：1971
I think it was invented before the car.
When was it invented？It was invented in…
What is it used for?
What are they used for?
have a point，　It mentioned that…
Teaching Reflection　【教学反思】
　　　This is the period for listening and speaking practice.Before listening，students talk about the four common things and get the words ready for listening.Then students listen and make conversations.The most important thing is to learn the passive voice in the past tense and teach students past participle forms.We should learn some new words about this topic in 2d.We can get the students to practice the structure “be used for…” “Who was it invented by？” and “It was invented by…”
The Second Period—Section A(3a－4c)
Teaching Important Points　【教学重点】
　Key words & phrases：
　ruler，boil，remain，smell，national，trade，doubt，fridge，low，somebody，translate，lock，ring，earthquake，sudden，bell，biscuit，cookie，musical，instrument
by accident，take place，fall into，make tea，less than，without doubt，all of a sudden
　Key sentences：
　1.Did you know that tea was invented by accident?
　2.Most people believe that tea was first drunk about 5，000 years ago.
　3.It is said that…
　4.It is believed that…
　5.In England，tea didn't appear until around 1660.
　Key structure：
　S＋was/were＋past participle＋…
eg：One of the world's favorite drinks was invented by accident.
Teaching Difficult Points　【教学难点】
　★Practice the passive voice in reading comprehension.Learn about Chinese tea culture.
Teaching Aids　【教学工具】
　A tape recorder，CAI or multimedia courseware.
Teaching Steps　【教学过程】
★Step 1　Leading in　【新课导入】
1．Greeting
2．Brainstorming
Quickly ask questions.Like this：
When was…invented？What is it/are they used for？…
3．Ask pairs of students to act out the conversation in 2d and then see who can make their own conversations.
★Step 2　Cooperative inquiry　【合作探究】
1．Finish the task in 3a
①Tell the class that today we are going to read about an accidental invention.Write “An accidental invention” on the board.Ask：What does it mean？Can you think of an invention that was invented by accident？Get the students to discuss.
②Quickly read the passage and match the paragraphs with the main idea.Do not mention the new words and expressions at this stage.
③Check the answers and ask why they think so.
2．Finish the task in 3b
3．Finish the task in 3c
①Read the instructions.Read the five sentences and the words beside them.
②Fill in the blanks by themselves.
③Get the students to learn the new items in the passage.
④Check the answers with the whole class.
4．Finish Grammar Focus
①Read aloud the sentences in the grammar frame until fluently.
②Find out the passive structure with students.
③Write the sentences in their active voice on the blackboard.Get the students to compare them with passive voice.Ask the students about the changes of the subject，the verb forms and the meanings.Practice some sentences by turning the active voice into the passive voice.
5．Finish the task in 4a
6．Finish the task in 4b
7．Finish the task in 4c
★Step 3　Homework
1．Try to retell the story how tea was invented.And retell the story about Bell and how he invented the telephone.
2．Write a few sentences about tea and its story.
3．Rewrite the sentences using the passive voice.
(1)They made this machine long ago.
________________________________________________________________________
(2)The teacher told us the story.
________________________________________________________________________
(3)Did you finish your task at that time?
________________________________________________________________________
(4)The traders brought tea to many countries around the world.21·cn·jy·com
________________________________________________________________________
Board Design　板书设计
Unit 6　When was it invented?
Section A(3a－4c)
An accidental invention
tea，the most popular drink，the brown water，national drink，one of the world's favorite drinks，produce a nice smell
drink，taste，plant，trade，invent－invention，popular－popularity.
Active voice：S＋v＋O＋…
Passive voice：O＋be＋past participle＋by＋S
Teaching Reflection　【教学反思】
　　　In this period，we should learn and practice a lot of words and the key points more in reading and speaking activities.Besides the new words and expressions，students should learn the grammar.We must practice the active voice and the passive voice by rewriting sentences and remember the changes.
The Third Period—Section B(1a－1e)
Teaching Important Points　【教学重点】
　Key words & phrases：
　sour，customer
by mistake，in the end
　Key sentences：
　1.Potato chips were invented by mistake.
　2.Potato chips were invented by a cook called George Crum.
　Key structure：
　S＋was/were＋past participle＋by…
eg：Potato chips were invented by a cook called George Crum.
Teaching Difficult Points　【教学难点】
　 ★Learn more participle verbs to say the passive voice.
Teaching Aids　【教学工具】
　A tape recorder，CAI or multimedia courseware.
Teaching Steps　【教学过程】
★Step 1　Leading in　【新课导入】
1．Greeting
Greet the class.
2．Brainstorming
Quickly ask questions about how tea was invented.
3．Practice rewriting active sentences into passive voice.www.21-cn-jy.com
★Step 2　Cooperative inquiry　【合作探究】
1．Finish the task in 1a
①Show pictures of potato chips，lemon，ice－cream，and salted duck eggs.Talk with the class about these foods and ask students to describe their taste.
②Read and learn the new words.
2．Finish the task in 1b
①Do a brainstorming：
T：What other fruit is sweet/sour？What food is crispy/salty？Help them to write the words in the list in 1b.
②Ask different students to write their lists on the blackboard.
③Ask some students：
Do you like lemon？How about its taste?
Is the apple sweet？…
3．Finish the task in 1c
①Look at the sentences in 1c.Predict what we are going to hear.
②Play the recording for the first time.Students listen and try to get the rough meaning.
③Play the recording for the second time and students circle T or F.
④Play the tape once again.Check their answers.
4．Finish the task in 1d
①Look at the passage in 1d.Play the recording for the fourth time.Get the students to fill in the blanks in 1d.2·1·c·n·j·y
②Read aloud the passage to see how they work.
5．Finish the task in 1e
★Step 3　Homework
1．Make conversations with other students talking about how potato chips were invented after class.
2．Write a conversation to talk about something else.
3．Translate the following sentences into English.
(1)薯片是怎么发明出来的？
________________________________________________________________________
(2)那种食物甜脆可口。
________________________________________________________________________
(3)太咸的食品不受欢迎。
________________________________________________________________________
Board Design　板书设计
Unit 6　When was it invented?
Section B(1a－1e)
How ware potato chips invented?
by mistake，by accident
sweet：
crispy：
salty：
sour：
Teaching Reflection　【教学反思】
　　　When we talk about food，we should learn how to describe their taste.So we do a brainstorming to practice the food names and their tastes.In this period，the students should practice the passive voice in listening to the story about how potato chips were invented.And then get them to listen and speak.In this way they can improve their capacity of language organization and oral output while listening and speaking practice.Students must do some writing practice after they have learned the new items.So we can give them some written work to do after they listen to the story and learn the new words in the part.21教育网
The Fourth Period—Section B(2a－2e)
Teaching Important Points　【教学重点】
　Key words & phrases：
　Canadian，divide，basket，hero
the Olympics，divide…into two teams，at the same time，stop…from doing sth.，not only…but also，look up to，achieve their dreams2-1-c-n-j-y
　Key sentences：
　1.Basketball is a much－loved and active sport that is enjoyed by many for fun and exercise.
　2.He was asked to think of a game that could be played in the winter.
　3.Today，the popularity of basketball has risen around the world.
　4.Basketball has not only become a popular sport to play，but it has also become a popular sport to watch.
　Key structure：
　be＋past participle
eg：When was the first basketball game in history played?
Teaching Difficult Points　【教学难点】
　★Learning more passive voice sentences and past participles in the reading practice.
Teaching Aids　【教学工具】
　A tape recorder，CAI or multimedia courseware.
Teaching Steps　【教学过程】
★Step 1　Leading in　【新课导入】
1．Greet the class and review the conversation about potato chips.
2．Brainstorming
Show pictures of Yao Ming，and ask what he is famous for.And then lead the class to talk about basketball.
★Step 2　Cooperative inquiry　【合作探究】
1．Finish the task in 2a
①Ask the questions about basketball.
②Discuss these questions in pairs.
2．Finish the task in 2b
①What do you want to know about basketball？Now read the article about basketball.Find the main idea of each paragraph.
②Students read the article quickly.Explain the reading strategy box－mind－mapping.Ask the students to use mind maps to sum up the main idea of each paragraph.
History，development and popularity.
3．Finish the task in 2c
4．Finish the task in 2d
5．Finish the task in 2e
★Step 3　Homework
1．Read aloud the passage enough times until we can tell the history，development and popularity about basketball.
2．Write complete answers to the questions in 2d in the exercise books.
3．Translate the following sentences into English.
(1)篮球作为娱乐和锻炼受到许多人的喜爱。
________________________________________________________________________
(2)这些出名的篮球明星激励年轻人去努力学习以实现梦想。
________________________________________________________________________
(3)篮球运动于1936年在柏林成为奥运会的项目。
________________________________________________________________________
Board Design　板书设计
Do You Know When Basketball Was Invented
mind－mapping
popularity，game，development，
divide the class into three groups，
stop the wind from blowing away the clothes，
not only…but also…
The good things：
The difficult things：
Teaching Reflection　【教学反思】
　　　This is a period in which students do more practice in reading.The teacher should practice the students' ability of reading quickly and efficiently.While reading，help the students learn how to catch the main idea and the most important ideas as quickly as they can by mind－mapping.They learn some new words and new language items when they are finishing the tasks and reading the article again and again.
Understanding how to use the passive voice is still the difficult point in this period.Students can find the sentences in the passive voice and learn to use them when talking about the game.
The Fifth Period－Section B(3a－3b) & Self Check
Teaching Important Points　【教学重点】
　Key words & phrases：
　nearly
decide on，come up with the idea
　Key sentences：
　1.This pen was invented by Liu Jie.
　2.It is hard to tell who came up with the idea first.
　Key structure：
　be＋past participle
eg：My watch was stolen by someone.
Teaching Difficult Points　【教学难点】
　★Use the words and structures to write a letter and give advice to someone about the best way to learn English.
Teaching Aids　【教学工具】
　CAI or multimedia courseware.
Teaching Steps　【教学过程】
★Step 1　Leading in　【新课导入】
1．Greeting
2．Ask three students to retell the text.One about the history，another about the popularity and the other about the development of basketball.【21教育】
3．Read aloud the article in 2b.
★Step 2　Cooperative inquiry　【合作探究】
1．Additional activity
2．Finish the task in 3a
①Read the instructions in 3a.Students write their notes about their inventions.
②Think of their problems and inventions to help them.
3．Finish the task in 3b
①Read the instructions.Show the expressions they may use for the ad on the board.
②Write the ad in 15 minutes.
③Read their works to the class.They can learn from each other and help each other.
4．Finish the tasks in Self Check
Activity 1
①Read and review the words in the box.
②Fill in the blanks on their own.The teacher walks around.
③In pairs，correct the work of each other.
④Read aloud the passage until fluently.
Activity 2
①Ask students to say how to write a passive voice sentence simply.
②Ask five students to write the sentences on the blackboard.Other students rewrite the sentences on their own.
③The class look at the blackboard and check.
④Read and translate them into Chinese.
Activity 3
①Read the instructions and understand how to work.
②The teacher leads the class to think back of the inventions in this unit.Quickly and simply describe them.
③Ask students to choose one invention to finish the writing.
★Step 3　Homework
1．Review the unit and read the contents in the whole unit.【21教育名师】
2．Write about one invention they want.
3．Translate the following sentences into English.
(1)很难说清谁是第一个想出这个主意的人。(come up with)
________________________________________________________________________
(2)图书馆里一本书被人带回家了。(take…home)
________________________________________________________________________
(3)这支特殊的笔用于在黑夜里写字。(in the dark night)
________________________________________________________________________
Board Design　板书设计
a special car/key/bag/bowl/broom/…
be made of…；be used for…；looks like…；where be made of…；be used for…；looks like…；where and when can be used；how much…21-cnjy*com
It was invented by…，It looks like…
Teaching Reflection　【教学反思】
　　　This is the last period of the unit.It is important to get the students to use what they have learned in the unit to write something.We will do a lot of work to review the words and expressions about inventions.We can ask the students to make a summary of the passive voice.And then do the exercises.