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1、2022年高中英语必修二Unit 3 Computers 教案1Introduction In this period, after the warming up, students will first be guided to imagine and share their views about the technology. They will then be helped to read a narration entitled WHO AM I. Examples of “Warming Up” designs are presented in this book for teac
2、hers reference. puter and overhead projector may be used to aid the teaching and learning. ObjectivesTo talk about puterTo read about puterFocusWordssimplify, sum, operator, logically, solve, reality, personal, network, finance, applications, exploreExpressions technological revolution, artificial i
3、ntelligence, as a result, anyhowPatterns From then on, I grew rapidly both in size and in brainpower.As a result I totally changed my shape.Over time my memory has developed so much that, like an elephant, I never forget anything I have been told!AidsMultimedia facilities, tape-recorder, photos, dia
4、grams ProceduresI. Warming up 1. Warming up by talking about puterLook at the pictures on page 17. What are they? What do they have in mon? Yes, they are puters. Then what is a puter?A puter is a machine which stores knowledge in its memory and does calculations on that knowledge. This knowledge is
5、stored in symbols; it is called data. A puter usually has a monitor to show results. However, some puters can speak; these puters can be used for voice mail.计算机室A puter frequently requires a boot device. The boot device contains the puters operating system and data. puter programs can be installed o
6、nto a puter. Some people think that puters are less useful if they do not have access to the Internet. They think this because the Internet allows the puters to send and receive data and email across the world.曙光3000巨型计算机A puter is now almost always an electronic device. It usually contains material
7、s which are toxic; these materials will bee toxic waste when disposed of. When a new puter is purchased in some places, laws require that the cost of its waste management must also be paid for. This is called product stewardship.In some countries old puters are recycled (melted down) to get gold and
8、 other metals. This is dangerous, because this procedure releases the toxic waste into the water and soil.puters bee obsolete quickly. Very often they are given away and new ones replace them within two or three years. This makes the problem worse. puter recycling is thus mon. Many projects try to s
9、end working puters to developing nations so they can be re-used and will not bee waste as quickly.puter jargon 计算机行话puter jargon means words to do with puters and surrounding topics. Knowing what these words mean can help you know more about puters. Some people use these words to impress other peopl
10、e (Also known as buzzwords).Examples of jargon:Bit - The smallest data unit, can either be a “0.” or a “1.”. Byte - unit of data. See also Kilobyte, Megabyte, Gigabyte and Nibble CPU Central Processing Unit, Another name for processor Data - Information stored on a puter Disk - A place to store data
11、. Email - Electronic mail. GHz - Gigahertz. Used often incorrectly to describe the speed of a processor. But with some 2.4 GHz processors faster than 3.6 GHz ones, it is clear that it is just a salesman trick. Load - Get data from a disk Nibble - Half a Byte Save - Put data on a disk RAM random-acce
12、ss memory(随机存取存储器), the more the better. USB - Universal Serial Bus（通用串行总线，一种简化了插接多种附件的薄型插座） - World Wide Web, part of the InternetII. Pre-reading1. Questioning and answeringWhat do you know about puter?(1) Electronic machine capable of performing calculations and other manipulations of various type
13、s 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, puters are called mainframes, miniputers, and microputers. Microputers include desk-top and portable personal puters.(2) A multi-functi
14、on electronic device that can execute instructions to perform a task.(3) A device that accepts information, processes it, and supplies an output. A puter usually contains memory, a control unit, arithmetic and logical units, and a means for input and output.(4) A programmable hardware ponent that is
15、 controlled by internally stored programs and that can perform substantial putations (including arithmetic and logic operations) without human intervention. A puter typically consists of one or more processing units, memory units, and associated peripheral input and output devices.(5) Related to aut
16、omation and electronic data processing. The Library of Congress monly classes most puter-related books in HF5548, QA75-76, Z52, T385, and some TK ranges.(6) A machine for performing calculations automatically calculator: an expert at calculation (or at operating calculating machines) (7) A puter is a device or machine for making calculations or controlli
