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西安建筑科技大学:《大学英语》课程教学资源(大学体验英语,PPT课件讲稿,第四册)Unit2_W-P

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l Return to Menu General Writing Practical Writing

Return to Menu General Writing Practical Writing

Describing Functions and Uses When describing functions or uses of something, first of all you a tell the reader what it can do or can perform. Then you also need to. indicate where it is used or who will use it Now read the following examples

When describing functions or uses of something, first of all you tell the reader what it can do or can perform. Then you also need to indicate where it is used or who will use it. Now read the following examples. Describing Functions and Uses

Describing Functions and Uses What functions can be performed? The computer is a machine that performs tasks, such as mathematical calculations or electronic communication, under the a control of a set of instructions called a program. Programs usually reside within the computer and are retrieved and processed by the computer's electronics, and the program results are stored or routed to output devices, such as video display monitors or printers. Computers are used to perform a wide variety of activities with reliability, accuracy, and speed 。。00。0。0000●。0。。。000。00●。0●0。。。00。0。00。。0。0●。0。0。000。●0●

What functions can be performed? The computer is a machine that performs tasks, such as mathematical calculations or electronic communication, under the control of a set of instructions called a program. Programs usually reside within the computer and are retrieved and processed by the computer’s electronics, and the program results are stored or routed to output devices, such as video display monitors or printers. Computers are used to perform a wide variety of activities with reliability, accuracy, and speed. Describing Functions and Uses

Describing Functions and Uses Where is it used? People use computers in a wide variety of ways. In business, computers track inventories with bar codes and scanners, check the credit status of customers, and transfer funds electronically. In homes, tiny computers embedded in the electronic circuitry of: most appliances control the indoor temperature, operate home security systems, tell the time, and turn videocassette recorders on and off. Computers in automobiles regulate the flow of fuel, thereby increasing gas mileage. Computers also entertain, creating digitized sound on stereo systems or computer-animated features from a digitally encoded laser disc 0。。。。。●。。0。。。。。0。。。。0。。。·.。。。。。。0。●。0。。0。。。·。。。。0.0。●

Where is it used? People use computers in a wide variety of ways. In business, computers track inventories with bar codes and scanners, check the credit status of customers, and transfer funds electronically. In homes, tiny computers embedded in the electronic circuitry of most appliances control the indoor temperature, operate home security systems, tell the time, and turn videocassette recorders on and off. Computers in automobiles regulate the flow of fuel, thereby increasing gas mileage. Computers also entertain, creating digitized sound on stereo systems or computer-animated features from a digitally encoded laser disc. Describing Functions and Uses

。。o。ooso。● oo00000000 0。ooo。e。。。。。●。。● Computer programs, or applications, exist to aid every level of education, from programs that teach simple addition or sentence construction to programs that teach advanced calculus. Educators use computers to track grades and prepare notes; with computer.: controlled projection units, they can add graphics, sound, and animation to their lectures. Computers are used extensively in scientific research to solve mathematical problems, display complicated data, or model systems that are too costly or impractical to build, such as testing the air flow around the next generation of space shuttles. The military employs computers sophisticated communications to encode and unscramble messages, and to keep track of personnel and supplies. A Exercises

Exercises Computer programs, or applications, exist to aid every level of education, from programs that teach simple addition or sentence construction to programs that teach advanced calculus. Educators use computers to track grades and prepare notes; with computer￾controlled projection units, they can add graphics, sound, and animation to their lectures. Computers are used extensively in scientific research to solve mathematical problems, display complicated data, or model systems that are too costly or impractical to build, such as testing the air flow around the next generation of space shuttles. The military employs computers in sophisticated communications to encode and unscramble messages, and to keep track of personnel and supplies

EX 20 Write a passage to describe the function and use of the Internet, using the above format as a guide, start from the basic functions of the Internet and then describe where the Internet can be useful The Internet Key

Ex. 20 Write a passage to describe the function and use of the Internet, using the above format as a guide, start from the basic functions of the Internet and then describe where the Internet can be useful. The Internet Key

e。。。。。。。。。。。。。°。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。 The Internet The Internet is a computer-based global information system. It can link tens, hundreds, or even thousands of computers, enabling them to share information with one another and to share computational resources such as powerful supercomputers and databases of information. The Internet has made it possible for people all over the world to effectively and inexpensively communicate with one another eeeeeseseeeeeooeeeeeoeeeeeeeeoeeeeeeeoeoeeeeeooeeeeeoeoeoe

The Internet The Internet is a computer-based global information system. It can link tens, hundreds, or even thousands of computers, enabling them to share information with one another and to share computational resources such as powerful supercomputers and databases of information. The Internet has made it possible for people all over the world to effectively and inexpensively communicate with one another

The Internet has brought new opportunities to government, business, and education, Governments use the Internet for internal communication, distribution of information, and automated tax processing. In addition to offering goods and services online to customers. businesses use the Internet to interact with other businesses. Many individuals use the Internet for shopping, paying bills, and online banking. Educational institutions use the Internet for research and to deliver courses to students at remote sites

The Internet has brought new opportunities to government, business, and education. Governments use the Internet for internal communication, distribution of information, and automated tax processing. In addition to offering goods and services online to customers, businesses use the Internet to interact with other businesses. Many individuals use the Internet for shopping, paying bills, and online banking. Educational institutions use the Internet for research and to deliver courses to students at remote sites

Program for Performance ●·●●●●●●●●●●●●·●·●●·。0·●●·●●●●●·●●●●●0●●●●·●●·●。·●●·。●●·●●●● A program briefly introduces a particular performance. It gives the title of the performance and its time and place. Of course, it will also include the list of items with the names of performers or sponsors Now read the following example Exercises

A program briefly introduces a particular performance. It gives the title of the performance and its time and place. Of course, it will also include the list of items with the names of performers or sponsors. Now read the following example. Program for Performance Sample Exercises

CCTV Affiliated with the Chinese musician Association PRESENTS International Beijing Opera Competition May17,2002 7:00pm Beijing Theater Chairpersons: Zhang Yang, Fang Su

CCTV Affiliated with the Chinese Musician Association PRESENTS International Beijing Opera Competition May 17, 2002 7:00 p.m. Beijing Theater Chairpersons: Zhang Yang, Fang Su

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