《浙江版》2013年高一英语精品教案：UNIT3 PERIOD1（新人教版必修2）.doc

1、高考资源网（） 您身边的高考专家Part 1 Teaching Design第一部分 教学设计Period 1 A sample lesson plan for reading(WHO AM I?)IntroductionIn this period, after the warming up, students will first be guided to understand how computer works. Then they will be helped to read a narration about computer and its development. Three

2、examples of “Warming up” designs are presented for the teachers reference. Computer and overhead projector may be used to aid the teaching and learning. Objectives To help students learn to make decisions and to reason in English To help students learn to read an introduction about computer To help

3、students better understand “the computer science” To help students learn to use some important words and expressions To help students identify examples of “the present perfect passive voice” in the textFocusWordssolve, explore, arise Expressions fromon, as a result, in a way, with the help of, deal

4、with, watch overPatterns Over time I have been changed quite a lot.As a result I have totally changed my shape.I am now truly filled with happiness that I am a devoted friend and helper of the human race!. AidsMultimedia facilities, tape-recorder, photos, diagrams Procedures1. Warming up Warming up

5、by talking about computerLook 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 keeps knowledge in its memory and does work on that knowledge. This knowledge is kept in symbols; it is called data. A

6、computer usually has a monitor to show results. However, some computers can speak; these computers can be used for voice mail. Warming up by learning some computer jargonsJargons are terms used by some special people. These are some of the computer jargons. Computer jargon 计算机行话CPU - Another name fo

7、r processor, Data - Information stored on a computer, Disk - A place to store data, Email - Electronic mail, Load - Get data from a disk, Save - Put data on a disk, RAM - Memory, the more the better, USB - A method to plug computer tools into machine, WWW - World Wide Web, part of the Internet Warmi

8、ng up by getting to know what a computer virus is.Computer viruses (病毒)are small software programs that are planned to spread from one computer to another and to do harm to computer operation. A virus might harm or wipe out data on your computer, using your e-mail program to spread itself to other c

9、omputers.Viruses are most easily spread by e-mail messages. That is why it is important that you never open e-mail unless you know who its from and you are expecting it.Viruses can be made to look like funny images, greeting cards, or audio and video files.Viruses also spread through downloads on th

10、e Internet. They can be hidden in software or other files or programs you might download.To help avoid viruses, its essential that you have the latest updates and antivirus tools, stay informed about recent threats, and that you follow a few basic rules when you surf the Internet, download files, an

11、d open attachments. 2. Pre-reading by talking about how computer works How does a computer work?A computer has four main parts: the arithmetic and logic unit (ALU), the control unit, the memory, and the input and output devices (collectively termed I/O). These parts are interconnected by groups of w

12、ires. The control unit, ALU, registers, and basic I/O (and often other hardware closely linked with these) are collectively known as a central processing unit (CPU). Early CPUs were comprised of many separate components but since the mid-1970s CPUs have typically been constructed on a single integra

13、ted circuit called a microprocessor.3. 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.4. Reading aloud and underlining expressionsNow we are t

14、o read the text once again and underline the expressions in the text. Jot them down into your notebook after class as homework.Collocations from WHO AM I?be built as, follow instructions from, sound simple, at the time, a technological revolution, solve problems, become huge, had artificial intellig

15、ence, go by, change size, become small and thin, get quick, stand there by oneself, be connected by, share information by, deal with, communicate with, serve the human race5. Reading and transferringScan the text for information to complete the flow chart below, describing the development of compute

16、r.a calculating machine in 1642 in France an Analytical Machine in 1822 a “universal machine” in 1936 the size of a large room made smaller and smaller getting new transistors in 1960s clever and quicker a network in the early 1960s talking to humans using BASIC in the early 1960s brought into peopl

17、es homes in 1970s Internet6. Reading to get the general idea of the Type of writing and summary of WHO AM I?Type of writingThis is a piece of narrative writing.Main idea of the passageIt tells about the birth and development of computer.Topic sentence of 1st paragraphI began as a calculating machine

18、 in 1642 in France. Topic sentence of 2nd paragraph Since the 1970s, my memory improved.Topic sentence of 3rd paragraphSince the 1970s many new applications have been found for me. 7. Retelling the text Try to retell the text in your own words with the help of the flow chart or “the Type of writing

19、and summary of WHO AM I?” above. A retold version of the text WHO AM I?I, the computer, was a calculating machine in 1642 in France. Then I was built as an Analytical Machine in 1822. I became a “universal machine” in 1936, the size of a large room. After that I was made smaller and smaller. Getting

20、 new transistors in 1960s I became clever and quicker. I was connected with other computers and turned out to part of a network in the early 1960s. Then I began talking to humans using BASIC in the early 1960s. In 1970s I was brought into peoples homes, and came the Internet.8. Closing down by doing

21、 a quizFill in the blank with one word to complete the summary of the text.In order to understand how a computer really 1 _ , we first have to examine what it really means for a system or device to be digital. All being digital 2 _ is that a system stores and operates on information in a very specif

22、ic 3 _. In a digital system, every piece of information is stored in a bit (or multiple collections of bits). A bit is a variable 4 _ can have only one of two values: it can either be a 1, or be a 0. The easiest 5 _ to think of a bit is as a container - this container is either completely 6 _ or com

23、pletely empty, but never anything in between. A full container can be thought of as a 1, 7 _ empty container as a 0. The beauty of this is that any piece 8 _ information can be represented as a collection of bits. The way this is done is by making each bit the 9 _ to a yes or no question. For exampl

24、e, lets say I wanted to know whether a person has long hair 10 _ not. I could represent this piece of information by deciding that if the 11 _ has long hair, I will set a certain bit to be a 1. If the person doesnt have long hair, I will 12 _ that same bit to be a 0. As long as you followed the same

25、 convention, you could look at the 13 _ bit that I just set and know whether the person has long hair or not, even if you had 14 _ seen them before.(Keys: 1 works 2 means 3 way 4 that 5 way 6 full 7 an 8 of 9 answer 10 or 11 person 12 set 13same 14 never)Work out the word and structure questions.1.

26、As the days _ gone by, I have been made angrier and angrier.A: had B: have C: has D: having2. There were weeks _ she liked to go back into her history.A: that B: where C: when D: how3. I hope I could share views _ others.A: to B: with C: among D: for4. Computer is an electronic machine for storing and _ information, and for communicating with others.A: dealing B: ordering C: searching D: organizing(Keys: 1 B 2C 3 B 4 D)版权所有：高考资源网()版权所有：高考资源网()高考资源网版权所有 侵权必究