2018专八阅读理解练习题《汽车系统》
汽车是现代人经常谈及的话题。汽车也是现代人关注的事情之一。下面，小编就为大家送上一篇与汽车相关的2018专八阅读理解练习题，供大家练习。
Navigation computers, now sold by most car-makers, cost $2,000 and up. No surprise, then, that they are most often found in luxury cars, like Lexus,BMW and Audi. But it is a developing technology-meaning prices should eventually drop-and the market does seem to be growing.
Even at current prices, a navigation computer is impressive. It can guide you from point to point in most major cities with precise turn-by-turn directions-spoken by a clear human-sounding voice. and written on ascreen in front of the driver.
The computer works with an antenna 天线 that takes signals from no fewer than three or the 24, global positioning system GPS satellites. By measuring the time required for a signal to travel between the satellites and the antenna. the car's location can be pinned down within l00 meters.
The satellite signals. along with inputs on speed from a wheel-speed sensor and direction from a meter, determine the car’s position even as it moves. This information is combined with a map database. Streets, landmarks and points of interest are included.
Most systems are basically identical. The differences come in hardware-the way the computer accepts the driver's request for directions and the way it presents the driving instructions. On most systems, a driver enters a desired address, motorway junction or point of interest via a touch screen or disc. But the Lexusscreen goes a step further: you can point to any spot on the map screen and get directions to it.
BMW's system offers a set of cross hairs瞄准器上的的十字纹that can be moved across the map you have several choices of map scale to pick a point you'd like to get to. Audi's screen can be switched to TV reception.
Even the voices that recite the directions can differ, with better systems like BMW's and Lexus's having awider vocabulary. The instructions are available in French. German, Spanish, Dutch and Italian, as well asEnglish. The driver can also choose parameters for determining the route: fastest, shortest or no freeways高速公路, for example.
1. We learn from the passage. that navigation computers______________.
A will greatly promote sales of automobiles
B may help solve potential traffic problems
C are likely to be accepted by more drivers
D will soon be viewed as a symbol of luxury
2. With a navigation computer, a driver will easily find the best route to his destination________.
A by inputting the exact address
B by indicating the location of bis car
C by checking his computer database
D by giving vocal orders to the computer
3. Despite their varied designs, navigation computers used in cars___________________.
A are more or leas the same price
B provide directions in much the same way
C work on more or less the same principles
D receive instructions from the same satellites
4. The navigation computer functions__________________.
A by means of a direction finder and a speed detector
B basically on satellite signals and a map database
C mainly through the reception of turn-by-tum directions
D by using a screen to display satellite signals
5. The navigation systems in cars like Lexus. BMW and Audi are mentioned to show__________.
A the immaturity of the new technology
B the superiority of the global positioning system
C the cause of price fluctuations in car equipment
D the different ways of providing guidance to the driver
2018专八阅读理解练习题《汽车系统》
答案：
1.从文章中我们得知，导航电脑__________________。
A会大大提高汽车的销售
B可以帮助解决潜在的交通问题
C很可能会被更多的司机所接爱
D很快会被视作奢侈品的象征
[C]根据文章第1段“这是一项正在发展的技术，而且其市场还有很大的潜力”，可推断，它将被越来越多的驾驶员接受。故选C。
2.有了导航电脑，司机就能很容易找到去目的地的最佳路线，方法是___________________。
A输入准确的地址
B显示汽车的位置
C检查电脑的数据库
D对电脑发出口头指令
[A]根据文章第5段“在大多数电脑系统中，驾驶员只需触模屏幕输入要去的地方即可”，由此可推断，输入确切的目的地就是驾驶员唯一要做的事。因此，A正确。
3.虽然设计各不相同，车用导航电脑____________________。
A价钱都差不多
B指路的方式都-样
C原理基本一样
D从同样的卫星接收指令
[C]根据文章第5段“大多数电脑系统的.工作原理基本上是一致的，区别只是在于硬件——电脑接受驾驶员指令的方式和电脑输出驾驶指令的方式不同”，因此，C正确。
4.导航电脑起作用，____________________。
A是通过一个方向寻找器和一个速度检测器实现的
B基本上是依赖卫星信号和一个地图数据库
C主要是通过接收逐步方向指令
D使用一个屏幕来显示卫星信号
[B]根据文章第4段“卫星信号，连同车速传感器提供的车速数据和定向仪提供的方向一起确定汽车前进时的位置。这些信息同一个地图数据库相结合”，故B正确。
5.文章提到凌志，BMW和奥迪的车用导航系统，是为了显示_____________________。
A新技术的不成熟性
B全球定位系统的优越性
C汽车设备价钱波动的原因
D为驾驶员指路的不同方式
[D]根据文章第5段提出的观点见第3题，在以下的几段中，围绕此观点，文章具体举例说明了安装了导航电脑的这几种车型在这两方面到底有什么不同，也就是说在给驾驶员提供指令方面到底有什么不同。由此可推断D正确。
附：如何提高专八阅读理解能力?
1. 不要反复浏览。凡是科技读物，一般只须顺着读一遍即可。如有必要，也要等整篇读完之后，再回过头重复某项内容。避免眼睛不断地来回转动。
2. 采用“筛选”式阅读法。有意识地为涉猎专业所需的信息而读。
3. 要默读，不要朗读。发声的阅读是快速法的大敌。
4. 阅读时，视线应与读物成垂直线，并充分发挥视线的“余光”作用，多览到一些内容。
5. 要聚精会神地阅读。快速阅读必须有“强化”的注意力。
6. 提倡有理解地阅读。阅读时，抓住实质性的关键词。读物的内容实质，正是阅读时应弄通的重点。理解，就是探索出读物的思想意义。
7. 在阅读中，运用要领记忆的基本方法，有目的地去记。不必去记无关紧要的词句，却要记住作者意图及内容实质。
8. 学会运用多种形式的学习法，不断提高阅读速度。
9. 经常训练自己的阅读能力，便能巩固已经取得的成果。
10. 每天阅读的定额标准——两份报纸，一本杂志，按自己的专业需要，从中吸取相当于普通图书五十至一百页左右的信息。