单选题 What might driving on an automated highway be like? The answer depends on what kind of system is ultimately adopted. Two distinct types are on the drawing board. The first is a special purpose lane system, in which certain lanes are reserved for automated vehicles. The second is a mixed traffic system: fully automated vehicles would share the road with partially automated or manual driven cars. A special purpose lane system would require more extensive physical modifications to existing highways, but it promises the greatest gains in freeway (高速公路) capacity.
Under either scheme, the driver would specify the desired destination, furnishing this information to a computer in the car at the beginning of the trip or perhaps just before reaching the automated highway. If a mixed traffic system way was in place, automated driving could begin whenever the driver was on suitably equipped roads. If special purpose lanes were available, the car could enter them and join existing traffic in two different ways. One method would use a special onramp (入口引道). As the driver approached the point of entry for the highway, devices installed on the roadside would electronically check the vehicle to determine its destination and to ascertain that it had the proper automation equipment in good working order. Assuming it passed such tests, the driver would then be guided through a gate and toward an automated lane. In this case, the transition from manual to automated control would take place on the entrance ramp. An alternative technique could employ conventional lanes, which would be shared by automated and regular vehicles. The driver would steer onto the highway and move in normal fashion to a "transition" lane. The vehicle would then shift under computer control onto a lane reserved for automated traffic. (The limitation of these lanes to automated traffic would, presumably, be well respected, because all trespassers (非法进入者) could be swiftly identified by authorities. )
Either approach to joining a lane of automated traffic would harmonize the movement of newly entering vehicles with those already traveling. Automatic control here should allow for smooth merging without the usual uncertainties and potential for accidents. And once a vehicle had settled into automated travel, the driver would be free to release the wheel, open the morning paper or just relax.

单选题 We learn from the first paragraph that two systems of automated highways ______.

单选题 A special purpose lane system is probably advantageous in that ______.

【正确答案】 B

【答案解析】[解析] 细节题。利用定位关键词可以定位到第一段最后一句“A special purpose lane system would require more extensive physical modifications to existing highways, but it promises the greatest gains in freeway capacity”，即“专门用途车道系统要求对现有的高速公路进行更广泛的改造，但它会使高速公路获得最大的运力”，由此可知其优势就是能增加高速公路的流通容纳量，因而选项B(获得高速公路交通的最大效率)为正确答案，其中原文的“greatest gains in freeway capacity”与选项中的“greatest highway traffic efficiency”为同义改写。

单选题 Which of the following is true about driving on an automated highway?

【正确答案】 C

【答案解析】[解析] 细节题。利用选项A的关键词可以定位到第二段，即“Under either scheme, the driver would specify the desired destination, furnishing this information to a computer in the Car at the beginning of the trip or perhaps just before reaching the automated highway”，即“不论采用哪种设计，司机都需要在其开始行驶时或在到达自动化高速公路前确定要去的目的地，把这个信息输入车上的计算机”，由此可知，在自动化高速公路上行驶与目的地无关，但都要事先提前将目的地信息输入电脑，因此选项A(行驶在高速路上的汽车根据目的地分配车道)与原文信息不一致，而选项C(司机应该在上高速路之前将目的地信息输入汽车电脑)与原文信息一致，其中原文的“furnishing this information to a computer in the car”与选项中的“inform his Car computer”为同义改写；利用选项B的关键词可以定位到第二段“If a mixed traffic system way was in place, automated driving could begin whenever the driver was on suitably equipped roads”，选项B中的“existing traffic”与原文信息“on suitably equipped roads”不一致；利用选项D的关键词可以定位到第一段“The second is a mixed traffic system: fully automated vehicles would share the road with partially automated or manual driven Cars”，由此可知选项D提到的情况只适用于第二种设计方案，即混合式交通系统。因而，该题的正确答案为C。

单选题 We know from the passage that a car can enter a special purpose lane ______.

【正确答案】 B

【答案解析】[解析] 细节题。利用定位关键词可以定位到第二段“If special purpose lanes were available, the car could enter them and join existing traffic in two different ways. One method would use a special onramp...devices installed on the roadside would electronically check the vehicle...Assuming it passed such tests, the driver would then be guided through a gate and toward an automated lane. In this case, the transition from manual to auto mated control would take place on the entrance ramp. An alternative technique could employ conventional lanes, which would be shared by automated and regular vehicles...The vehicle would then shift under computer control onto a lane reserved for automated traffic”，由此可知有两种方法进入特殊用途通道，其中之一就是使用特殊的入口引道，并由安装在道边的电子装置检测车辆的目的地并搞清是否有能工作的自动化装置，另外一种方法就是自控车辆和普通车辆共用常规车道，但是车辆在计算机控制下转入自动化车道，所以选项B(通过电子设备经由入口)为正确答案；选项A具有迷惑性，根据原文，自控汽车虽然与普通汽车共用车道但是是在电脑控制下进入而非传统方式进入。

单选题 When driving in an automated lane, the driver ______.

【正确答案】 D

【答案解析】[解析] 细节题。利用定位关键词可以定位到第三段“once a vehicle had settled into automated travel, the driver would be free to release the wheel, open the morning paper or just relax”，即“一旦车辆进入自动行驶状态，司机就可以放开方向盘，打开晨报或者只是休息”，由此可知选项D(不必抓着方向盘)为正确答案；选项A(应该与新驶入的车辆保持协调)、B(不必再依赖电脑系统)、C(应该注意潜在的事故)都与原文信息不一致。