Unit 2 Smart Cars Exercises
Useful Expressions ⚫ 计算机革命 ⚫ 制造业 ⚫ 长途司机 ⚫ 被严重低估 ⚫ 威胁生命的重大隐患 ⚫ 解决问题 ⚫ 积极的影响 the computer revolution manufacturing industry long-distance driver be grossly underestimated life-threatening hazard cure the problem a positive impact
⚫ 在任何一个特定时间 ⚫ 量子理论 ⚫ 精确的频率 ⚫ 发出无线电信号 ⚫ 换算出 ⚫ 导航能力 at any given time the laws of the quantum theory precise frequency send out a radio signal be converted into navigational capability
⚫ 几乎无限 ⚫ 手杖 ⚫ 遥控 ⚫ 潜在的应用 ⚫ 要求 ⚫ 完全控制 ⚫ 被编成组 ⚫ 一齐行驶 ⚫ 对环保有利 virtually limitless walking sticks remote control potential use/ application call for take complete control of be bunched into groups travel in unison environmental boon
Vocabulary ⚫ 1. Fill in the gaps with words or phrases chosen from the box. Change the form where necessary. 1) Before Anglo-American westward _, there were already a number of settlements in the mid-West. 2) We are confident that the introduction of a(n) _ assembly line will eliminate most of today’s human errors. expansion automated 在英裔美国人向西扩张前, 中西部 已有许多定居点。 我们相信引进自动化生产流水线会消除人 们现在的大部分错误
3) Warmer air is able to hold more water _ than cold air and so has a higher humidity (湿度). 4) In most communities in the United States, the local American Red Cross chapter has been authorized to _ certain local public buildings in times of emergency. 5) Traffic control establishes a set of rules and instructions that drivers, pilots, train engineers, and ship captains rely on to avoid collisions and other _. vapor take control of hazards 当地红十字会分会被授权在紧急时刻 控制当地公共建筑
6) In the past few decades since the launching of the first artificial _ in 1957, thousands of “manmade moons” have been rocketed into the Earth’s orbit, each designed to serve a specific purpose or mission. 7) The thunder crashed so near the house that the glass _ in the windows, and some books, which has sat on the windowsill fell to the floor. satellite vibrated
8) Radio telescopes (射电望远镜) have provided valuable information about other stars and about the _ fields of other planets in our solar system, especially Jupiter’s. 9) At the beginning of the race, the runners were _ together on the track, but later some of them got ahead and left the others behind. magnetic 提供有关其他恒星以及太阳系中其他行星磁场 的极有价值的信息，特别是木星 bunched
10) From the control tower (控制塔), air traffic controllers coordinate aircraft movement both _ and on the ground (空中和地面上). 11) Further troubles developed in October 1995 when the tape recorder in the orbiter (轨道飞行器) Galileo _ the “rewind”(倒带) position for 15 hours, wearing out (磨损) a section of the tape. in the air got/ was stuck in
12) In 1978, at the beginning of the reform period, _ 11,000 Chinese students went abroad to pursue further studies. approximately