人教版高中英语必修二Unit 3 computers reading 公开课课件
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.
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.
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 hJen
Look at the following pictures and tell their English names.
abacus
calculator
huge computer
PC personal computer
laptop
PDA Personal Digital Assistant
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)
Simplify ________difficult sums logically Think_________ Solve any difficult problem
Reality ______worried the designers Used in offices Personal computer/ _______________ Since the 1970s Laptop and homes ____________ _______________
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.
1822
1936
1940s 1960s 1970s
Now
Discussion
In what ways computers can be used to do for human race in the future?
For example: A: What will computers be developed in the future? B: I think computers will be developed to help us … / In my opinion, computers can be used to …
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?
Thank you!
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.
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)
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?
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.
必修二Unit3Computersreading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 usethe 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 kindsof computers.T: Do you want to know more about computers?Step2.SkimmingRead the whole passage as fast as you canTry. 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 computersas 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.3.。
人教版高中英语 必修二 Unit3 《Computers ---Reading》 课件 (共32张PPT)
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?
Discussion
Brainstorm a list of things that you, your school and your family use computers for. Think about what you would have to do if you could not use computers any more.
Reading
WHO AM I?
Skimming to get
general ideas
Reading Comprehension Complete the chart below.
Over time I have been changed quite a lot.
1 calculating machine 2 analytical machine 3 universal machine 4 PC 5 laptop
D. d. b. a. c.
Quiz
Retell the text by filling the following blanks.
I began as a _c_a_lc_u_l_a_t_in_g_ _m__a_ch__in_e_ in 1642 in France. In 1822 I was built as an
人教版高中英语 必修二 Unit3 《Computers ---Reading》 课件 (共32张PPT)
I am very big. Scientists use me to solve some mathematical problems. Do you know who I am?
huge computer
I’m a machine that works automatically. I can do a wide variety of tasks, especially suitable for doing jobs too boring, difficult, or dangerous for human beings. Do you know who I am?
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
1. Read the text after class and look for more information about the development of the computer and its applications.
PDA
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?
人教版高中英语必修二Unit-3-computers-reading-公开课课件
1822
1936
1940s 1960s 1970s
Now
Discussion
In what ways computers can be used to do for human race in the future?
For example: A: What will computers be developed in the future? B: I think computers will be developed to help us … / In my opinion, computers can be used to …
search for information
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
Simplify ________difficult sums logically Think_________ Solve any difficult problem
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
the _a_n_a_ly_t_ic_a_l_machine was made by Charles Babbage. At that time, after the computer was _p_r_o_gr_a_m__m_e_d by an operator who used cards with holes, it could “think” logically and produce an answeqru_ic_k_e_r___ than any person. With the time going by, the computer has been made _s_m_a_l_le_r__. Later, computers were __co_n_n_e_c_te_d__ with each other.
World Wide Web
Para 3: Since the 1970s many new applications have been found for me.
communication finance trade robots mobile phones medical operations space rockets
The information could be _s_h_a_re_d__.
Since the 1970s many new _a_p_p_li_c_at_i_on_s_have been found for the computer. It has become very important in _c_o_m_m__u_n_ic_a_ti_o_n, finance and
人教版高中英语必修二 unit 3 computers reading课件(共54张PPT)
Task 4 Fill in the blanks.
1 2 3 4 totally revolution simplify calculate completely complete change to make things easier to find the answer using numbers can be moved easily from place to place to work out the answer to a problem
Develo Network times pment Memory Tubes _________ Transistors Small Small chips Applications ______ __________ Communication Narrow Finance ________ Trade Robots Mobile phones ___________ Medical operations Space rockets Wide
The first generation (1945-1956)
the second generation (1956-1963)
the fourth generation (1971- )
the third generation (1964-1971)
1. What is PC? Speak the name on the whole. It means: personal computer. 2. What is IT? Information Technology. 3. What is CD-ROM? Compact disc read-only memory. 4. What is PDA? Personal digital assistant.
人教版高中英语 必修二 Unit3 《Computers ---Reading》 课件 (共21张P
2. Main idea: This is a short history of the _d_e_v_e_lo_p__m_e_nt
of the computer.
3 . Why does the writer use the title WHO AM I ? I refers to __th_e__c_o_m_p_u_t_e_r_. Personification (拟人） the first person —simple, vivid（生动）, interesting, understandable.
9. chat room
★10. serve the human race
1. Which type / style does the text belong to ?
A. Description(描写)
B. Naration(叙述)
C. Exposition(说明)
D. Argumentation(议论)
Homework
1. Practice reading the passage. 2. Write a short passage about the advantages and
disadvantages of the computer and Internet and what we should do.
Supporting details
1. calculating machine 2. analytical machine 3. universal machine 4. pc 5. laptop
4 PC ( 2 ) analytical machine
( 5 ) laptop
( 1 ) calculating machine ( 3 ) universal machine
人教版必修二Unit 3 Computers-Reading课件 (共23张PPT)
___________________________
Paragraph 1
Paragraph 2 Paragraph 3
Is it possible for a robot to:
think for itself?
have feelings?
have its own needs and desires?
look and feel like a human being?
The technology develops so quickly that many new things appear in human being’s life.
to support your idea. It is a computer.
1. Then in 1822 I was built as an Analytical machine by Charles Babbage.
2. My real father was Alan Turing, who in 1936 wrote…solve any mathematical problem.
Timeline
1642:__T_h_e_c_o_m__p_u_t_e_r_b_e_g_a_n__a_s_a_c_a_l_c_u_la_t_i_n_g_m__a_c_hine
1822:The Analytical Machine was made by Charles Babbage.
_1_9_3_6_: T__h_e_c_o_m__p_u_t_e_r_g_r_e_w__r_a_p_id_l_y_b_o_t_h__in__s_iz_e__a_n_d_i_n brainpower. __________________
高中英语人教版必修2Unit3ComputersPeriod2Reading要点讲解课课件
v. +or→n. 词 educate v. 教育→educator n. 教育者 汇 visit v. 参观, 访问→visitor n. 参观者 微 sail v. 航行→sailor n. 水手, 海员 空 act v. 行动, 起作用→actor n. 男演员 间 operate v. 操作, 运转, 动手术→operator n. 操
7. After a long time, she finally found the _so_l_u_t_io_n_ (solve)to the problem. 8. Tom is a good computer _o_p_e_r_a_to_r_(operate)you can ask for his help if you have any questions about computer.
意为“自……以来”, 常与完成 时态连用
【活学活用】 ①_F_r_o_m_ _th_e_n_ _o_n_, we became good friends. 从那时起, 我们就变成了好朋友。 ②Her husband died in 2000, _s_in_c_e_ _th_e_n_ she has lived alone. 她丈夫于2000年去世, 从那时起她一直单身。
3 go by(时光)逝去; 经过 ※Twenty years went by and she remained unchanged. 二十年过去了, 她依然没变。 ※I went by him, but he pretended not to see me. 我从他身旁经过, 但他假装没看见我。 ※Don’t let such a good chance go by. 不要放过这样一个 好机会。
人教版高中英语 必修二 Unit3 《Computers ---Reading》 课件 (共32张PPT)
I’m a small, relatively inexpensive computer designed for an individual user. I’m based on the microprocessor technology. At home, people use me to surf the Internet and play games. Do you know who I am?
applications have been found for me.
Scanning
Reading Comprehension IV
1. Who was the first person to make the
earliest computer?
A. Alan Turing. B. Charles Babbage.
Homework
1. Read the text after class and look for more information about the development of the computer and its applications.
PDA
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?
1 communications 2 finance
3 trade
4 robots 5 mobile phones 6 medical operations 7 space rockets