人教版高中英语必修二Unit-3-computers-reading-公开课课件
Can you find out the main idea of this passage?
A. The development of computers. B. A machine which is simple-minded. C. The development and the applications of computers. D. Computers may replace human beings.
Communication finance mobile phones Trade medical operation space rockets robots
What roles do computers play in the life of human beings?
They provide humans with a life of high quality.
T
T
4. I was able to share my knowledge with others through the World Wide Web in the early 1960s.
Read Para 3 and then answer the following questions. (1 min)
robot
Can you tell the development of computers?
abacus
calculator
huge computer
robot
PDA
laptop
PC
Do you know in what ways computers are used today? Discuss it with your deskmate.(2 min)
Simplify ________difficult sums logically Think_________ Solve any difficult problem
Reality ______worried the designers Used in offices Personal computer/ _______________ Since the 1970s Laptop and homes ____________ _______________
search for informatio n
watch movies
listen to music
read books and magazines
buy things online
play games on the computer
Reading
Who am I?
Can you find out the topic sentence of each paragraph?
Read para 1 and fill in the chart. (2 mins)
Time Machine Applications
calculating A __________ machine 1822 An analytical About in _____ machine universal In 1936 A ________ machine In 1642 By the 1940s A larger machine
They are devoted friends and helpers of the human race.
Timeline: Find
1642
out the development of
computers in the following years. (1 min)
The computer began as a calculating machine． The analytical machine was made by Charles Babbage. The computer grew rapidly both in size and in brainpower. The computer had grown as large as a room. The first family of computers was connected to each other. Computers were used in offices and homes. Computer is a devoted friend and helper of the human race.
Unit 3 Computers
Look at the following pictures and tell their English names.
abacus
calculator
huge computer
PC personal computer
laptop
PDA Personal Digital Assistant
F F
Read para 2 and then tell the statement true or false. (1 min)
1. My shape didn’t change even though my memory improved. The information was stored in tubes, then 2. The older I am, larger I have become. on transistors and the later on the chips. As I have grown older I have also grown smaller. 3. Over time I have large memory so that I will not forget anything I have been told.
Skim the passage and find out the topic sentence in each paragraph. (2 min)
Para I:
Over time I have been changed quite a lot.
Who am I?
Para II:
These changes only became possible as my memory improved.
1
What are the new applications of the computer?
2
What roles do computers play in the life of human beings?
What are the new applications of the computer?
人教版高中英语 必修二 Unit3 《Computers ---Reading》 课件 (共32张PPT)
Personal Digital Assistant
I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems. Do you know who I am?
C. Charles Turing. D. Alan Babbage.
2. When was the “universal machine”
built?
A. In 1822.
B. In 1642.
C. In 1936.
D. In 1970.
Scanning
3. When was the computer the biggest?
1 communications 2 finance
3 trade
4 robots 5 mobile phones 6 medical operations 7 space rockets
8 providing a life of high quality
Careful reading
Reading Comprehension Finish the timeline below.
Computers were used in offices and homes. Computers connect people all over the world together.
Scanning to get
detail information
Scanning
Reading Comprehension III
Homework
必修二Unit 3 Computers reading公开课教案
Unit 3 ComputersPeriod 1 ReadingI.Teaching aims1. Knowledge aims(1)Get the students to learn the useful and expressions in this part.(2)Let students to learn about history and basic knowledge of computers.2. Ability aimDevelop students' reading abilities and let them learn different reading skills.3. Emotional aimArouse students' great interest in learning computers and let them learn to use the computers in their daily lives.II.Teaching difficult and important points1.Let the students learn more about history and basic knowledge of computers.2.Get the students to learn different reading skills.III.Teaching methods1.Task-based teaching and learning2.Cooperative learning3.DiscussionIV. Teaching proceduresStep1.Lead-in and warming upShow the students some pictures of Steve Jobs and let them guess who he is. After showing the third picture, they may get the right answer. Then let them focus on the tablet in his hands and ask them what kind of computers it is.Then show them a short video about the history of Apple’s computers and ask them how many different kinds of computers they can see.At last, show them some kinds of computers.T: Do you want to know more about computers?Step2.SkimmingRead the whole passage as fast as you can.Try to get the main idea of this passage.A. The computer wants to find “who he is”.B. The function (功能) of the computer.C. The computer becomes popular around the world.D. The history and the applications of the computer.Find out the topic sentence of each paragraph and underline them.Step3. Careful-reading Para 1ScanningLet the students read this paragraph carefully and try to finish the following char.T: How could these changes become possible?Step4. Careful-reading Para 2Let the students read paragraph 2 quickly and find the answer to this question. After check the answer, give them one minute to find the five different ways of memory for computers in different periods of time.Step5. Careful-reading Para 3Since the memory of computers has been improved greatly, will them become more powerful and can be used in more fields?Now read the last paragraph and find out the new applications of computers.Step6. Further Reading1.The passage is written by_______ order?2. What is the most used rhetoric (修辞法) in this passage?A. simile（明喻）B. personification (拟人)C. metaphor (暗喻)3. In what ways have computer been changed?Ask some students to summarize. If they have any difficulty, give them some hints. Step7. Activity: Be the next Jobs!We have learned the history of computers and seen the great development of computers. What will the computers be like in the future? Do you want to design your computers as Jobs did? Now try to design your computers.For example:This is the new computer designed by our company.It is very small and transparent(透明的). You can even put it into your pocket. (Shape/color)It has a free-internet in it. You can… (Applications/functions)It only costs you … (Price)Give the students five minutes to prepare and invite some of them to show their ideas. Step8. Homework1. Try to retell the history of computers.2. Read the passage carefully and underline the difficult sentences.。
人教版高中英语 必修二 Unit3 《Computers ---Reading》 课件 (共21张PPT)
details
3. trade
4. robots
5. mobile phones 6. medical operations
7. space rockets
8. Provide a life of high quality
Summary
I was born as a __c_a_lc_u_l_a_ti_n_g_ machine in 1642. When I was young, I was good at simplifying difficult sums. About 2 hundred years had passed before I could think _lo_g_i_c_a_ll_y__ and produce quicker answers. At that time, I was called an __a_n__a_ly_t_ic_a_l_ machine. In 1936, I was built as a __u_n_iv_e_r_s_a_l__ machine . I had the ability to _s_o_lv_e___any mathematical problem. From then on, I grew rapidly both in __s_iz_e___ and memory. After I stored my memory on _tr_a_n_s_i_st_o_r_s_instead of in tubes . I became _s_m__a_ll_e_r in size but _c_le_v_e_r_e_r__in intelligence.
As time went by, I became even smaller, for I put my memory on a very small _c_h_ip___, which made me become PC and laptop.
人教版高中英语必修二Unit 3 computers reading 公开课课件
carry things
drone
work in wars
do space research
Homework
1. Finish exercise 1 on page 20
2. Find out some sentences of the passage you don’t understand. We will discuss it in next class.
Communication finance mobile phones Trade medical operation space rockets robots
What roles do computers play in the life of human beings?
They provide humans with a life of high quality.
Read para 1 and fill in the chart. (2 mins)
Time Machine Applications
calculating A __________ machine 1822 An analytical About in _____ machine universal In 1936 A ________ machine In 1642 By the 1940s A larger machine
Since the 1970s many new applications Para III: have been found out for me.
Can you find out the main idea of this passage?
A. The development of computers. B. A machine which is simple-minded. C. The development and the applications of computers. D. Computers may replace human beings.
人教版高中英语 必修二 Unit3 《Computers ---Reading》 课件 (共32张PPT)
who wrote a book and built me in 1936. 2. After I got my new transistors in the
1960s, I became smaller but cleverer and quicker. 3. I was brought into people’s homes in the 1970s. 4. Since my birth I have been built to take the place of the human race.
PC
Personal Computer
Can you tell the development of computers?
abacus calculator huge
PC
computer
What’s next?
robot
PDA
laptop
What is a computer?
A computer is a machine which keeps knowledge in its memory and does work on that knowledge. This knowledge is kept in symbols; it is called data. A computer usually has a monitor to show results. However, some computers can speak. These computers can be used for voice mail.
Scanning
人教版高中英语 必修二 Unit3 《Computers ---Reading》 课件 (共29张PPT)
As I have grown older I have also grown smaller. (L20)
T 3. Over time I have large memory so that I will not forget anything I have been told. L20-21
Discussion
Future computer can store a large number of information,and it will be more intelligent, so it can do many jobs like a normal person. e.g.It can be a doctor , a teacher , a driver and so on.
I will become a/an _________________ which can be used to _____________ such as__________. And I also can help people ____________ even though they are ______________. In a word, I can make people's life ________ and _________.
1 What are the new applications of the computer?
2 What roles do computers play in the life of human beings?
What are the new applications of the computer?
人教版高中英语 必修二 Unit3 《Computers ---Reading》 课件 (共32张PPT)
Homework
1. Read the text after class and look for more information about the development of the computer and its applications.
laptop
I am so small in size that I can fit in your hand. I usually have a small screen usually bigger than a digital phone, however smaller than the smallest laptop, I’m a great way to store telephone numbers, access the internet, make calculations, and so on. Do you know who I am?
_a_n_a_ly_t_i_ca_l_ m__a_c_h_i_n_e_. Then in 1936 Alan Turing wrote a book and built a _u_n_i_v_e_rs_a_l _m_a_c_h_i_n_e_. As the years have gone by, I have been made _sm__a_l_le_r_ and _s_m__a_ll_e_r_ but I became __cl_e_v_e_r_e_r_ and _q_u__ic_k_e_r__.
True or False 1. My real father was Charles Babbage,
who wrote a book and built me in 1936. 2. After I got my new transistors in the
人教版高中英语 必修二 Unit3 《Computers ---Reading》 课件 (共25张PPT)
Discussion
List the advantages and disadvantages of the mobile phone
Advantages
Disadvantages
1. communicate with friends 2. listen to the music 3. see films & watch news 4. play games 5. do shopping 6. save a lot of time …
1940s Computers had grown___a__s_l_a_r_g_e__a_s_a__r_o_o_m__.___
The first family of computers was connected 1960s by__a__n_e_tw__o_rk__. ________
Computers have become very important in 1970s c_o_m__m_u__n_ic_a_t_io_n_,_f_i_n_a_n_c_e_a_n_d__t_ra_de．
Unit 3 Computers
These amazing inventions we saw in the video come from the following common things:
Have a guess
I am very old now. I was born in China. Many people used me for calculating in the past, but now I am a bit lonely because they don’t like me now.
More active and interesting
人教版高中英语 必修二 Unit3 《Computers ---Reading》 课件 (共25张PPT)
1940s Computers had grown___a__s_l_a_r_g_e__a_s_a__r_o_o_m__.___
The first family of computers was connected 1960s by__a__n_e_tw__o_rk__. ________
Computers have become very important in 1970s c_o_m__m_u__n_ic_a_t_io_n_,_f_i_n_a_n_c_e_a_n_d__t_ra_de．
More active and interesting
Easier to understand
Reading
Skimming to get
general ideas
What’s the main idea of the passage?
It’s a short history of the _d_e_v_e_lo_p_m__e_n_t_ of computers.
Do you know who I am?
abacus
I am very small. I can be used for calculating. A lot of students use me when solving mathematical problems. Do you know who I am?
calculator
I am a machine that you can use to talk to other people even in a far away place. You can carry me around you. Now each of us often has a number. Do you know who I am?
人教版新课标英语必修二Unit3ComputersReading课件
th• e四d级evelopment of the _____c_o_m_p_u_tearnd its • 五级
_______a_p_p_l_ic_atiinondsifferent fields.
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单击此处编辑母版标题样式
• 单击此处R编ea辑d 母th版e 文pa本ss样ag式e and finish the timeline.
machine
in
1642.
It• t四o级•o五k级nearly two hundred years
_b_e_f_o_re___ I was built as an analytical
machine. I became a “universal machine”
in 1936 to __s_o_l_v_e__ any mathematical
sentence
•
单击此处编辑母版文本样式
• 二P级aragraph 1
• 三级
Over time I
• 四级 • 五级
have been
changed
quite a lot.
Calculating machine Analytical machine Universal machine PC laptop
• 四级 • 五级
Easy! Fast! Free!
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3
单击此处编辑母版标题样式
• 单击此处编辑母版文本样式
• 二级
• 三级
• 四级 • 五级
keyboard
mouse
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monitor
speaker
4