全新版大学英语第四册02 Unit 2 Smart cars培训资料.pptVIP

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 Text 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 system 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 thousands 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; profitable 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 poverty? 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: 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