Unit 3 computer
文档属性
| 名称 | Unit 3 computer |  | |
| 格式 | rar | ||
| 文件大小 | 11.5KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2008-12-02 21:07:00 | ||
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文档简介
Unit 3 computer
学案ⅰⅱ
Study aims
1. can understand the development of computer in today's society and its extensive use .
2. can use English to express their point of view and simply set out the reasons and make a decision
3.learn to describe a matter according to the time.
Study courses
Step1.first students look at the seven pictures and dicuss which computer was first,which followed and then what they think future computer developments will be.
Then learn one phrase
翻译：have in common___________________（有共同之处）
Eg.我突然感觉到我们有很多共同的地方。
I suddenly felt we ____ a lot ______ _______.（had in common）
Step2.first read and translate the following words:
Calculate universal simplify operator technology revolution artificial intelligence mathematical transistor application finance
Step3.scanning
Read the text quickly and choose the best answer according to the text.
①From the passage,”I” refer to ______.（C）
A. a son of Alan Turing
B. a machine which is simple-minded
C. a “universal machine” which can solve any mathematical problem.
D. a person who built an Analytical Machine.
②From the change of computers,we can infer that_______.（C）
A. little by little computers can really think and feel like the people.
B. In the future computers may refuse to serve the people.
C. Science and technology develop rapidly.
D. Sooner or later computers may take the place of human beings.
③AT that time it was considered a technological revolution and the start of my “artificial intelligence”,the underlined word means_______（D）
A.natural B.mathematical C.clever D.man-mad
Step4.fast-reading
Read the passage and finish the timeline .
1642:____________________________________.
（The computer began as a calculating machine.）
1822:The analytical machine was made by Charles Babbage.
_____:____________________________________.（1936）（The computer grew rapidly both in size and in bainpower）
1940s:____________________________________.
（The computer had grown as large as a room.）
_____:The first family of computers was connected to each other.
（1960s）
1970s:____________________________________.
（Computers were used in offices and homes.）
Now:______________________________________.（Computers connect people all over the world together.）
Step5.careful-reading
I divide my class into three parts,each part
manage only one paragraph,then let them
complete the chart below.
Paragraph1 Paragraph2 Paragraph3
Topicsentence
Suppo-rtingDetails 1.2.3.4.5. 1.tubes2.3.4.5. 1communications2.finance3.4.5.6.7.
ANSWERS:Pa1.Over time I have been changed quite a lot.
Supporting details:
1. calculating machine
2. analytical machine
3. universal machine
4. PC
5. laptop
pa2.These changes only became possible as my memory improved.
Supporting details:
1. tubes
2. transistors
3. chips
4. network
5. World Wide Web
Pa3.Since the 1970s many new applications have been found for me.
Supporting details:
1. communications
2. finance
3. trade
4. robots
5. mobile phones
6. medical operations
7. space rockets
Step6.listening to the text
listen to the text on the recorder,listen and follow ,then complete the following passage.
Over time the computer has been changed quite a lot.It began as a 1 machine in 1642 and in 1822 the analytical machine was 2 by Charles Babbage.In 1936 the computer 3 rapidly both in size and in brainpower.By the 1940s the computer had grown as 4 as a room.As time went by,the computer was made 5 .First as a PC and then as a laptop,these changes only became 6 as his momory improved.In early 1960s the first family of computers was 7 to each other.Since the 1970s computers have been used in office and homes and many new 8 have been found.Now computers connect people all over the world together.They play an important 9 in our life and make our life 10 .
Answers:1.calculating,made/built,grew/developed,large/big,smaller,possible,connected,applications/uses,part/role
Step7.understand the following sentences ,and translate the phrases underlined in them.
1.From then on ,I grew rapidly both in size and in brainpower.
2.As time went by ,I was made smaller.
3.As a result I totally changed my shape.
4.I was able to share my knowledge with others through the World Wide Web.
5.I have also been put into robots and used to make mobile phones as well as help with medical operations.
6.Anyhow,my goal is to provide humans with a life of high quality.
7.Iam now truly filled with happiness that I am a devoted friend and helper of the human race!
ANSWERS:1从那时起；两者都；2.随着时间的推移；3.结果4.和…共享5.也6.给…提供…；高质量的生活；7.充满了，一个忠实的朋友
Step8.difficult sentences
1. After I was programmed by an operator who used cards with holes,I could “think” logically and produce an answer quicker than any person.
本句是一个复合句，含有after引导的时间状语从句，an operator后面跟了一个who所引导的定语从句。Quicker than any person比较级表示最高级意思。如：
In Asia, China is bigger than any other country.
在亚洲，中国比其他任何一个国家都大。
思考：为什么本句多加了other
Eg.Monday is busier_____ _____ _____day in a week.
星期一要比其他日子忙一些。
ANSWER:any other day
2. At that time it was considered a technological revolution and the start of my”artificial intelligence”.
It was considered a technological revotion为被动语态，变成主动语态就是：considered it a technological revolution.consider+名词+（to be）名词/形容词，是一个非常常见的结构。
I consider him （to be） my best friend.
我将他视为我最好的朋友。
Eg.“How about John ”“My uncle_______a good student.” （C）
A.thinks John B.suggests John
C.considers John D.knows John
3.As time went by,I was made smaller.
在本句中，as用作连词，引导__________状语从句。表示“随着…”而with用作介词，后接名词短语，形成with结构。As time by,…=With time going by,…
Translate:
⑴.As our life improves,we find more and more time entertaining.
____________________________________________________________.
⑵.随着一个人的成长，他变得越来越有智慧。
____________________________________________________________.
ANSWERS:时间；随着生活水平的提高，我们娱乐的时间越来越多。
As one grows older,he becomes wiser.
4.And my memory became so large that I couldn’t believe it!
本句中so…that意为“如此…以至…”，so后接__________,以及many,much,few,little等不定代词；that引导结果状语从句，that可以省略。但是如果把so和that不分离，则表示“以便；以致。结果是”.如果把so放在句首，则用_______.
Translate:⑴.Mr. Li is so warm-hearted that we all like him at any time.
_________________________________________________. ⑵湖太深了以致看不到底。__________________________________________________.
ANSWERS:形容词或副词；倒装；李先生太热心了以致不管什么时候我们都喜欢他。
So deep is the lake that we can’t see the bottom.
5.So we need to encourage our programmer to improve our intelligence too.
在本句中，need是____动词,有_____和_____的变化，后接带to 的不定式；当主语是物时，后接___的主动形式表被动或用____的被动形式；当need用作____动词时，无人称和数的变化，后接______,常用于否定句和疑问句中，不用于____中。
Translate:这房子需要维修了。___________________________.
ANSWERS:实义；人称；数；动名词；不定式；情态；动词原形；肯定句; The house needs repairs/repairing/to be repaired.
Step9 DISCUSS IN PAIRS
How have computers changed our lives
⑴Brainstorm a list of things that you,your school and your family use computers for.
⑵Think about what you would have to do if you could not use computers any more.
学案ⅰⅱ
Study aims
1. can understand the development of computer in today's society and its extensive use .
2. can use English to express their point of view and simply set out the reasons and make a decision
3.learn to describe a matter according to the time.
Study courses
Step1.first students look at the seven pictures and dicuss which computer was first,which followed and then what they think future computer developments will be.
Then learn one phrase
翻译：have in common___________________（有共同之处）
Eg.我突然感觉到我们有很多共同的地方。
I suddenly felt we ____ a lot ______ _______.（had in common）
Step2.first read and translate the following words:
Calculate universal simplify operator technology revolution artificial intelligence mathematical transistor application finance
Step3.scanning
Read the text quickly and choose the best answer according to the text.
①From the passage,”I” refer to ______.（C）
A. a son of Alan Turing
B. a machine which is simple-minded
C. a “universal machine” which can solve any mathematical problem.
D. a person who built an Analytical Machine.
②From the change of computers,we can infer that_______.（C）
A. little by little computers can really think and feel like the people.
B. In the future computers may refuse to serve the people.
C. Science and technology develop rapidly.
D. Sooner or later computers may take the place of human beings.
③AT that time it was considered a technological revolution and the start of my “artificial intelligence”,the underlined word means_______（D）
A.natural B.mathematical C.clever D.man-mad
Step4.fast-reading
Read the passage and finish the timeline .
1642:____________________________________.
（The computer began as a calculating machine.）
1822:The analytical machine was made by Charles Babbage.
_____:____________________________________.（1936）（The computer grew rapidly both in size and in bainpower）
1940s:____________________________________.
（The computer had grown as large as a room.）
_____:The first family of computers was connected to each other.
（1960s）
1970s:____________________________________.
（Computers were used in offices and homes.）
Now:______________________________________.（Computers connect people all over the world together.）
Step5.careful-reading
I divide my class into three parts,each part
manage only one paragraph,then let them
complete the chart below.
Paragraph1 Paragraph2 Paragraph3
Topicsentence
Suppo-rtingDetails 1.2.3.4.5. 1.tubes2.3.4.5. 1communications2.finance3.4.5.6.7.
ANSWERS:Pa1.Over time I have been changed quite a lot.
Supporting details:
1. calculating machine
2. analytical machine
3. universal machine
4. PC
5. laptop
pa2.These changes only became possible as my memory improved.
Supporting details:
1. tubes
2. transistors
3. chips
4. network
5. World Wide Web
Pa3.Since the 1970s many new applications have been found for me.
Supporting details:
1. communications
2. finance
3. trade
4. robots
5. mobile phones
6. medical operations
7. space rockets
Step6.listening to the text
listen to the text on the recorder,listen and follow ,then complete the following passage.
Over time the computer has been changed quite a lot.It began as a 1 machine in 1642 and in 1822 the analytical machine was 2 by Charles Babbage.In 1936 the computer 3 rapidly both in size and in brainpower.By the 1940s the computer had grown as 4 as a room.As time went by,the computer was made 5 .First as a PC and then as a laptop,these changes only became 6 as his momory improved.In early 1960s the first family of computers was 7 to each other.Since the 1970s computers have been used in office and homes and many new 8 have been found.Now computers connect people all over the world together.They play an important 9 in our life and make our life 10 .
Answers:1.calculating,made/built,grew/developed,large/big,smaller,possible,connected,applications/uses,part/role
Step7.understand the following sentences ,and translate the phrases underlined in them.
1.From then on ,I grew rapidly both in size and in brainpower.
2.As time went by ,I was made smaller.
3.As a result I totally changed my shape.
4.I was able to share my knowledge with others through the World Wide Web.
5.I have also been put into robots and used to make mobile phones as well as help with medical operations.
6.Anyhow,my goal is to provide humans with a life of high quality.
7.Iam now truly filled with happiness that I am a devoted friend and helper of the human race!
ANSWERS:1从那时起；两者都；2.随着时间的推移；3.结果4.和…共享5.也6.给…提供…；高质量的生活；7.充满了，一个忠实的朋友
Step8.difficult sentences
1. After I was programmed by an operator who used cards with holes,I could “think” logically and produce an answer quicker than any person.
本句是一个复合句，含有after引导的时间状语从句，an operator后面跟了一个who所引导的定语从句。Quicker than any person比较级表示最高级意思。如：
In Asia, China is bigger than any other country.
在亚洲，中国比其他任何一个国家都大。
思考：为什么本句多加了other
Eg.Monday is busier_____ _____ _____day in a week.
星期一要比其他日子忙一些。
ANSWER:any other day
2. At that time it was considered a technological revolution and the start of my”artificial intelligence”.
It was considered a technological revotion为被动语态，变成主动语态就是：considered it a technological revolution.consider+名词+（to be）名词/形容词，是一个非常常见的结构。
I consider him （to be） my best friend.
我将他视为我最好的朋友。
Eg.“How about John ”“My uncle_______a good student.” （C）
A.thinks John B.suggests John
C.considers John D.knows John
3.As time went by,I was made smaller.
在本句中，as用作连词，引导__________状语从句。表示“随着…”而with用作介词，后接名词短语，形成with结构。As time by,…=With time going by,…
Translate:
⑴.As our life improves,we find more and more time entertaining.
____________________________________________________________.
⑵.随着一个人的成长，他变得越来越有智慧。
____________________________________________________________.
ANSWERS:时间；随着生活水平的提高，我们娱乐的时间越来越多。
As one grows older,he becomes wiser.
4.And my memory became so large that I couldn’t believe it!
本句中so…that意为“如此…以至…”，so后接__________,以及many,much,few,little等不定代词；that引导结果状语从句，that可以省略。但是如果把so和that不分离，则表示“以便；以致。结果是”.如果把so放在句首，则用_______.
Translate:⑴.Mr. Li is so warm-hearted that we all like him at any time.
_________________________________________________. ⑵湖太深了以致看不到底。__________________________________________________.
ANSWERS:形容词或副词；倒装；李先生太热心了以致不管什么时候我们都喜欢他。
So deep is the lake that we can’t see the bottom.
5.So we need to encourage our programmer to improve our intelligence too.
在本句中，need是____动词,有_____和_____的变化，后接带to 的不定式；当主语是物时，后接___的主动形式表被动或用____的被动形式；当need用作____动词时，无人称和数的变化，后接______,常用于否定句和疑问句中，不用于____中。
Translate:这房子需要维修了。___________________________.
ANSWERS:实义；人称；数；动名词；不定式；情态；动词原形；肯定句; The house needs repairs/repairing/to be repaired.
Step9 DISCUSS IN PAIRS
How have computers changed our lives
⑴Brainstorm a list of things that you,your school and your family use computers for.
⑵Think about what you would have to do if you could not use computers any more.