四六级

　　阅读作为英语六级考试中的重点拿分项，考前一定要多加练习，保持题感才行。下面是小编为大家准备的英语六级阅读冲刺仿真模拟训练题与答案解析，供广大同学参考、练习！

　　Navigation computers, now sold by most car-makers, cost $2,000 and up. No surprise, then, that they aremost often found in luxury cars, like Lexus,BMWand Audi. But it is a developing technology-meaningprices should eventually drop-and the market doesseem to be growing.

　　Even at current prices, a navigation computer is impressive. It can guide you from point topoint 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 the24, global positioning system (GPS) satellites. By measuring the time required for a signal totravel 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 froma meter, determine the car’s position even as it moves. This information is combined with amap database. Streets, landmarks and points of interest are included.

　　Most systems are basically identical. The differences come in hardware-the way the computeraccepts the driver's request for directions and the way it presents the driving instructions. Onmost systems, a driver enters a desired address, motorway junction or point of interest via atouch screen or disc. But the Lexusscreen goes a step further: you can point to any spot onthe 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 themap (you have several choices of map scale) to pick a point you'd like to get to. Audi's screencan be switched to TV reception.

　　Even the voices that recite the directions can differ, with better systems like BMW's andLexus'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 theroute: fastest, shortest or no freeways(高速公路), for example.

　　1. We learn from the passage. that navigationcomputers______________.

　　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 hisdestination________.

　　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 incars___________________.

　　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 toshow__________.

　　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

　　答案参考：

　　1.[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.[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.[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.[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.[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。

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