全新版大学英语综合教程第四册课件Unit2.ppt
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1、全新版大学英语第四册02,Unit 2 Smart cars,In this Unit ,you will,Pre-reading task Text-analysis Words and expressions Class assignments Writing skills Homework,AUDI,BMW,BUICK,BENZ,TOYTA,PASSAT,Questions,Would you like to drive a smart car? why or why not?,What hopes do you have for the future of smart cars?,Te
2、xt analysis:,What is “blind spot” ?,2.What is the Global positioning system?,3.What is an atomic clock?,4.What is an automated driver?,key,key,key,key,Answers :,1.A blind spot must be a portion of the road behind a car, which a driver can not observe from the rear-view mirror,2. Global positioning s
3、ystem is a service linked with a satellite. They make it possible to determine your location on the earth to within about a hundred feet.,3. Atomic clock vibrates at a precise frequency, according to the laws of the quantum theory.,4. An automated driver is a plan calls for computers, aided by thous
4、ands of three-inch magnetic spikes buried in the highway, to take complete control of the driving of cars on heavily trafficked roads. Cars will be bunched into groups of ten to twelve vehicles, only six feet apart, traveling in unison, and controlled by computer,1.lucrative: Producing much money; p
5、rofitable 生利的,赚钱的,Examples: 1.Many ex-army officers have found lucrative jobs in private security firms. 2.We made a lucrative business deal with the American company on rice imports.,2.eliminate: remove sb. /sth that is not wanted or needed; get rid of 消除,消灭,排除 e.g.1.Can the government eliminate po
6、verty? 2.She went through the typescript carefully, to eliminate all errors from it.,搭配 collocation,eliminate sth.; eliminate sth. from sth.,3.vapor: a mass of tiny drops of moisture forming cloud or mist 汽,雾 example: The atmosphere always contains some moisture in the form of water vapor.,4.alert:
7、warn sb. that there may be danger, trouble, etc使警惕 1. The teacher alerted the students to the danger of swimming in the river. 2 The manager alerted the staff to the crisis facing the company.,(搭配) alert sb.; alert sb.to sth.,5.prototype: the first model or design of sth. from which other forms are
8、copied or developed 原型,样品 1.Manufacturers usually begin by building the prototype of a new model before they set up a factory to make up the cars. 2.Toyota released its small-car prototype in 1947.,6.hazard: a thing that can be dangerous or cause damage; a danger or risk 危险 1.The research has confir
9、med that tobacco smoke presents a hazard to health. 2. Smog developed into a major health hazard by the 20th century.,7.vibrate: (cause sth. to) move rapidly and continuously backwards and forwards; shake颤动,摇摆 1.The whole house vibrates whenever a heavy truck passes. 2.Sounds are produced by objects
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