Learning about Language板书设计及设计说明

Unit 3 Computer

(Learning about language) 教学设计

Period 1: Warming up and reading Teaching Aims: To talk about computer; To read about computer Procedures 1.

Warming up Warming up by talking about computer Look at the pictures on page 17. What are they? What do they have in common? Yes, they are computers. Then what is a computer? A computer is a machine which stores knowledge in its memory and does calculations on that knowledge. This knowledge is stored 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. 2. Pre-reading Questioning and answering What do you know about computer? ●Electronic machine capable of performing calculations and other manipulations of various types of data, under the control of a stored set of instructions. The machine itself is the hardware; the instructions are the program or software. Depending upon size, computers are called mainframes, minicomputers, and microcomputers. Microcomputers include desk-top and portable personal computers. ●A multi-function electronic device that can execute instructions to perform a task. ●A device that accepts information, processes it, and supplies an output. A computer usually contains memory, a control unit, arithmetic and logical units, and a means for input and output. ●a programmable hardware component that is controlled by internally stored programs and that can perform substantial computations (including arithmetic and logic operations) without human intervention. A computer typically consists of one or more processing units, memory units, and associated peripheral input and output devices. ●Related to automation and electronic data processing. The Library of Congress commonly classes most computer-related books in HF5548, QA75-76, Z52, T385, and some TK ranges.

●a machine for performing calculations automatically calculator: an expert at calculation (or at operating calculating machines) 3. Reading 1. Listening and reading to the recording of the text WHO AM I?

Turn to page 18 and listen and read to the recording of the text. Pay attention to the pauses, pronunciation and intonation of the native reader. 2.

Reading aloud and underlining expressions 3.

Now we are to read the text once again and underline all the expressions in the text. Put them down into your notebook after class as homework. 4.

Collocations from WHO AM I? 5.

begin as…, a calculating machine, be built as…, at that time, a technological revolution, the start of artificial intelligence, write a book, be made to work, solve problems, from then on , grow any larger, As time went by, go back to…,be made

smaller, memory became so large, stand there by oneself, be connected by…, share knowledge with others through…, be put into…, provide humans with…, deal with…, truly filled with…

Period 2: Learning about Language

Teaching Aims: To learn to use The Present Perfect Passive Voice To discover useful words and expression To discover useful structures Procedures 1.

Warming up by reading to the tape To begin with, turn to page 18, listening to and reading to the recording of the text WHO AM I? Attention goes to the pauses and intonation, as well as the pronunciation of the reader. 2.

Discovering useful words and expressions 3.

In pairs do the exercises 1, 2 and 3 on pages 20. You must finish them in 10 minutes. Learning about grammar 1. Passive Voice—Overview Tense or Model Passive Sentence Simple Present The TOEFL exam is given every six months.

Simple past The TOEFL exam was given last month.

Simple Future The TOEFL exam this year will be given on October15.

Present Continuous The TOEFL exam is being given every year.

Present perfect The TOEFL exam has been given every year since 1950.

Past perfect The TOEFL exam had been given before the Vietnam War occurred.

Simple Modal The TOEFL exam should be given to every Foreign student.

Past Modal The TOEFL exam should have been given to all to enter US colleges.

2. The Present Perfect Passive Voice The structure of The Present Perfect Passive Voice is: have/ has ＋

been＋~ed Reading aloud and discovering Now go back to page 18 to read aloud and discover in the text examples of The Present Perfect Passive Voice. …as a laptop, I have been used in offices and homes since the 1970s.

Since the 1970s many new applications have been found for me. Discovering useful structure We shall do grammar exercises 1, 2 and 3 on page 21. Closing down by doing a quiz Correct the mistakes in these passive voice sentences Example: The house was built in 1880. (correct = The house was built in 1880.)

1. 3000 employees were laying off.

2. A story will made up.

3. An idea was putted forward for discussion.

4. Has the book been give back to you yet?

5. My bank loan will be payed off in five years time. 6. Nothing can be hold against me.

7. Our allies will be lend support.

8. She has never heard of.

9. She was being knocked down by a bus. 10. She was letted off with a fine.

11. The candle was blow out by the draught.

12. The criminal were locked up.

13. The flood water was be kept back by barriers.

14. The inconvenience will made up for by this money.

15. The keys must have been being left behind.

16. The old cinema is being pull down.

17. The protesters being held back by the police.

18. The road was blocking off.

19. Thirty more people were laid off last week.

20. Your jacket can be hanged up over there.