高一新课标必修二第三单元英语教案

Module 2 Unit 3 Computer Period 1.Warming-up & Intensive Reading 教学设计

Teaching goals:

1.To have a better understanding of the main idea of the paage.2.To enable the students to talk about computers and robots in English and expre or support an opinion with suitable expreions 3.To enable the students to grasp the progre of computers

4.To enable the students to talk about computers and robots in English Teaching aids: Computer, recorder and projector

Teaching procedures: Step 1.Lead-in

(Word puzzle )

T: The technology develops so quickly that many new things appear in human being’s life.

Let’s gue what they are: (show the picture on the screen and get Ss to say out the answers, learn the new words at the same time )

An old calculating machine used in China until now. (An abacus) It is built to solve some mathematical problems.But it is too big.(A huge computer) It is a new calculating machine which can solve a large number of mathematical problems.

(A calculator) It is a personal computer which can solve all kinds of problems and is used widely now.

(A PC / personal computer) T: If I am a math teacher, which can help me most? (Ask students to give their opinions, remind them of using the expreions of giving opinions) Ask students to discu what the items just shown have in common, and then rank them according to the time of their appearance.Ask some of the students to talk about what they know about computers.

Ask students to discu “How have computers changed our life?”, and then have some of them give their answers, using the expreions of giving opinions.

Step 2 Pre-reading

T: Have the computer and Internet become part of your life? How have computer changed our lives? (What can you use them to do? ) Ss: I use the computer or Internet to: type my homework /draw pictures/ play games communicate with my friends./ gather related information for my leon s/ buy the things I like, / listen to music / watch movies…

T: What else do you think the computer and Internet will help you to do ?

Deal with Ex 3 of Pre-reading on Page 17

Step 3 Skimming

Give students only 1 minute, then ask them to get the main idea of the paage The main idea of the paage: This is a short _____ of the _______ of computers.Who am I ? ( A computer ) (shown on the screen) Step 4 Scanning

Give students 2 minutes, and ask them to scan answers to the following questions: (Before students read the paage, tell them that attention should be paid to the hints of the time.) (Questions are shown on the screen) Question (1) What is the main idea of the paage?

Students are asked to find out three sentences to support who the speaker is in the story.1)Then in 1822 I was built ….(Itself was the first design of a computer) 2)My real father was Alan Turing.(He designed the first real computer.) 3)However, people thought I was simple-minded until…., (It has artificial intelligence.)

Question (2) What happened to computers in 1642？ Question (3) What happened to computers in 1936? Question (4) What happened to computers in 1970s?

Step 5 Detail Reading

I Give students 5 minutes to read the paage carefully, and answer the following questions: Question (1) Who was the first person to describe how the computer was made to work? Question (2) What did he make and what did it do? Question (3) Who was the next important person to design computers?

II True or False 1.In 1642 I began as a calculating machine and could solve any mathematical problem.F 2.My real father was Charles Babbage, who wrote a book and build me in 1936.F 3.After I got my new transistors in the 1960s, I became smaller but cleverer and quicker.T 4.I was brought into people’s homes in the 1970s.T 5.Since my birth I have been built to take the place of human race.F

III

Comprehending

Ask students:” How is the paage organized?”

(If the students can not answer the question, draw their attention to the appearance of different years.) Fill the table

A chain of events showing the development of computer / Changes of the machine

Timeline 1642: _____________________________________________: the Analytical Machine was Made

by Charles Babbage.1936: _______________________________________________________________________ 1960s: ______________________________________________________________________ _____: the first family of computers was connected to each other.1970s: ______________________________________________________________________ Now: _______________________________________________________________________ Explain how the computer technology has been developing and complete the following chart.Then give a brief oral presentation on the development of computer technology with the help of the chart.Step 6 Summing-up and enjoying

I.Ask students to finish the form shown on the careen(the same as on p.19) while playing the voice of the text II .Ask students to ex-change their own answers in groups, and then raise questions if they have any.III.Sum up: 1) Chronological writing

Chronology (资料等)按年代次序的排列 Chronological means to describe things in order of time. 1 Chronology is often used in recounting an event or describing the life of someone.It is an effective way to make a ma of things clearer.

Step 7 Oral practice ─ Retell the text using Chronological 1.Have students get prepared in 2 or 3 minutes and then retell the development of computers in your own words, using chronology.2.Ask some of the students to retell the text.

Step 8 Homework 1.Go over the text, and try to understand the text.2.Get ready for the discuion on P.19 Comprehending 3 3.Finish Exercise 1 in Learning about Language on page 19

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