新视野大学英语第4册PPT课件44

1、 go over the preview, the pre-reading questions and the title of the text before listening to the summary of the story and anticipate what we are going to read. telecommunications: telecommunications, from greek, means “communications at a distance”. telecommunications through voice, data, and image

2、 communication is changing the world. the ease of accessing information and people anywhere at anytime is having major impacts on society, business, and finance. two major trends have occurred in the technology that is applicable to telecommunications. the first trend has been the incredible increas

3、e in the processing power of digital computers, namely, dramatic decreases in physical size along with equally dramatic increases in complexity, speed, and capacity. the second trend has been the explosive growth in transmission capacity through the widespread use of optical fiber across continents

4、and under oceans. these two trends have had impressive long-term consequences for telecommunications around the world. the internet and the world wide web have already created a global system for the access of information. it has become popular that people check flight, weather, and hotels before tr

5、aveling to a foreign country. e-mail makes it easy to keep in contact instantly with colleagues and friends around the globe. but many of the peoples of the world do not even have a telephone, much less access to the internet and the information. the challenge to the telecommunications industry is t

6、o bridge the digital gap and extend the availability of telecommunications to all parts of the planet. read the sentences carefully and guess the meaning of the italicized term in each sentence according to the context and your own experiences. the company specializes in telecommunications. some kit

7、chen tools have very little utility. high utility bill telescopes and microscopes are optical instruments. he suffers from an optical defect. 长途通信长途通信用处用处公用事业公用事业光学的光学的视觉的视觉的 the road has been dug up in order to lay cables. a bracelet made of copper her hair shone copper in the sunlight. when i aske

8、d him about his childhood, he remembered a parade of baby-sitters. the small boy loves watching the soldiers on parade. 电缆电缆铜铜紫铜色紫铜色一大批一大批检阅队伍检阅队伍 the editor condensed the manuscript to half of its original length. steam condenses into water when it touches a cold surface. a lot of farming technique

9、s have been abandoned because they were too labour-intensive. she was desperate to get into university. 压缩压缩凝结凝结劳动密集劳动密集非常想非常想 years of being left out in the rain had rusted the metal chairs. the car was covered with rust. you cant give away grannys old bookcase its a valuable antique. the computer

10、people seem to have licked the problem. the child finished the dessert and then licked the plate. 生锈生锈锈锈古董古董克服克服舔舔 the company has appointed a new marketing director to broaden its strategic expertise. many businesses are failing because of the continuing recession. be careful not to scratch yoursel

11、f on the roses. marketing is within the province of the sales department. 战略规划战略规划衰退衰退扎伤扎伤职权范围职权范围 the war has badly damaged the countrys infrastructure from electricity plants and generators to roads and bridges. the old plane had logged hundreds of hours of flying time. the forest has been so heav

12、ily logged that it is in danger of disappearing. the cabin was built of logs. the captain described the accident in the ships log. 基础设施基础设施积累积累砍伐砍伐原木原木航海日志航海日志 traffic reached a peak between 8 and 9 in the morning. it is one of the most difficult peaks to climb in the whole range. he refuses to inve

13、st in companies without a good social record. the company is selling off its 15% stake in the commercial bank. i just dont feel i have a stake in how the trial comes out. one of the stakes in the fence is broken. 高峰高峰山峰山峰投资投资股份股份利益关系利益关系桩桩 we have leased an apartment for one year. the lease runs out

14、 in two years time. we walked along the narrow mountain ridge to reach the summit. my car is seven years old but its still fairly reliable. whose coat is this? look at the name tag. 租租租约租约脊脊可靠可靠标签标签 the young lady has entire disposal of the house. his business is waste disposal. he will have a car a

15、t his disposal for the whole month. the government was short of money because of falling oil revenues. im stuck with this job for the moment. 处置权处置权处理处理供他使用供他使用收入收入无法摆脱无法摆脱 some people prefer the old version to the new one. its a matter of taste. he had to choose between death and dishonor. our frie

16、ndship dates from college days. he said his car had got stuck in the snow. we left feeling that we had just scratched the surface of this fascinating country. 是是的问题的问题在在之间作出选择之间作出选择始于始于陷进陷进了解表面的一些东西了解表面的一些东西 anyone can log on to this computer. in order to log on to the system you have to type in a s

17、pecial password. log out before switching the computer off. are wages keeping pace with inflation? we still lag far behind many of our competitors in using modern technology. 登录登录进入进入退出退出与与同步同步落后于落后于 dumb voiceless mute silent speechless diameter radius perimeter circle circumference millimeter cent

18、imeter decimeter meter decameter hectometer kilometer spider moth butterfly fly mosquito bug flea louse bee wasp locust termite ant fax telex phone telegram email mobile phone dial mail post postage stamp persist in insist on stick to adhere to cling to homework learn the new words and expressions of the text by heart. go over the text and try to get the main idea of the text. analyze the structure of the text. 1. global reading