人教新课标高中英语必修二Unit3Computers教案

Unit 3 Computers
Period 1 Read ing
I. Teaching aims
1. Kno wledge aims
(1) Get the stude nts to lear n the useful and expressi ons in this part.
(2) Let stude nts to lear n about history and basic kno wledge of computers.
2. Ability aim
Develop stude nts' readi ng abilities and let them lear n differe nt readi ng skills.
3. Emoti onal aim
Arouse students' great interest in learning computers and let them learn to use the computers in their daily lives.
II. Teaching difficult and important points
1. Let the stude nts lear n more about history and basic kno wledge of computers.
2. Get the students to learn different reading skills.
III. Teaching methods
1. Task-based teachi ng and lear ning
2. Cooperative lear ning
3. Discussi on
IV. Teaching procedures
Step1.Lead-i n and warm ing up
Show the students some pictures of Steve Jobs and let them guess who he is. After show ing the third picture, they may get the right an swer. The n 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 Appl'computers and ask them how many differe nt kinds of computers they can see.
At last, show them some kinds of computers.
T: Do you want to know more about computers?
Step2.Skimmi ng
Read the whole passage as fast as you csTry 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 un derl ine them.
Step3. Careful-readi ng Para 1
Scanning
Let the students read this paragraph carefully and try to finish the following char.
T: How could these cha nges become possible?
Step4. Careful-read ing Para 2
Let 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 differe nt periods of time.
Step5. Careful-read ing Para 3
Since 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 Read ing
1. The passage is writte n by _____ order?
2. What is the most used rhetoric 修辞法）in this passage?
A. simile （明喻）
B. pers on ificati on （拟人）
C. metaphor 暗喻)
3. In what ways have computer bee n cha nged?
Ask some students to summarize. If they have any difficulty, give them some hints. Step7. Activity: Be the next Jobs!
We have lear ned the history of computers and see n the great developme nt of computers. What will the computers be like in the future? Do you want to design your computers as Jobs did? Now try to desig n your computers.
For example:
This is the new computer desig ned by our compa ny.
It is very small an d tran spare nt透明的).You can eve n 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. Homework
1. Try to retell the history of computers.
2. Read the passage carefully and un derl ine the difficult senten ces.。