13．Imagine a town with crosswalks but no pedestrians，cars and trucks but no drivers．Welcome to Mcity，a fake（假的）"city"built by researchers who are testing out the driverless cars of the future．
The controlled test environment，which opened today （July 20，2015）at the University of Michigan in Ann Arbor，covers 32acres （the size of about 24football fields） and contains all the trappings of a real suburb or small city．There is an entire network of roads lined with sidewalks，streetlights，stop signs and traffic signals．There's even a"downtown"area complete with fake buildings and outdoor dining areas．
The idea behind Mcity is simple：test out new driverless car innovations（创新） in a human-free environment before these technologies are unleashed（投放） in the real world．
"Mcity is a safe，controlled，and realistic environment where we are going to figure out how the incredible（难以置信的） potential（可能性） of connected and automated vehicles can be realized quickly，efficiently（有效地） and safely，"Peter Sweatman，director of the Mobility Transformation Center at U-M，said in a statement．
The roads of Mcity are built to stand up to"strict，repeatable"testing，according to MTC officials．While Mcity drivers don't have to compete with real pedestrians，there will be one mechanical foot-traveler （a robot-like machine named Sebastian） that steps out into traffic to see whether the automated cars can hit the brakes in time．The fake city also features a traffic circle，a bridge，a tunnel，some unpaved（未铺砌的） roads，and even a four-lane（四车道的） highway with entrance and exit ramps（坡道），according to a report by Bloomberg Business．
In addition to evaluating fully automated，or driverless cars，the researchers also hope to test out so-called connected vehicles within Mcity's limits．Connected cars can either communicate with one another （vehicle-to-vehicle control，or V2V） or with pieces of equipment，such as traffic lights，that are located near roadways （vehicle-to-infrastructure基础设施 control，or V2I）．
Even the smallest details of Mcity have been planned out in advance to copy the conditions that connected and automated vehicles could face in the real world．For example，there are street signs covered up with graffiti（涂鸦），and faded yellow and white lane markings line the streets．
Mcity is just one part of a much larger project that MTC and its partner organizations are establishing in an effort to get a whole fleet（车队） of connected and driverless cars on the road in Ann Arbor by 2021．In addition to the fake city，MTC is also continuing to launch connected and semi-autonomous（半自动） cars on real roadways．Eventually，the University of Michigan and the Michigan Department of Transportation said they hope to put 20，000connected cars on the roads of southern Michigan．
67．According to the passage，McityB．
A．is a real town used to evaluate the function of future cars
B．is a fake city with transportation system but no pedestrians
C．covers an area of 32acres with as many as 24football fields
D．owns a downtown area with a bridge and some unpaved roads
68．Why did researchers build Mcity？A
A．To test new driverless cars．B．To make a real suburb or small city．
C．To control road environment．D．To build an entire network of roads．
69．It can be inferred from the passage thatD．
A．some connected and semi-autonomous cars have been put into use
B．the researchers plans to create a robot-like machine to direct the traffic
C．the widespread use of driverless cars will soon come into reality in America
D．MTC is attempting to make connected and driverless cars available（可利用的） on real roads
70．How does the passage mainly develop？A
A．By presenting descriptions of the design．
B．By describing a cause and its effects．
C．By providing the time order．
D．By comparing the opinions．
分析 本文主要讲述了Mcity--一座假的由研究人员建成以测试未来的无人驾驶情况，以及其工作的具体细节．
解答 67．B 细节题．根据文章内容Imagine a town with crosswalks but no pedestrians，cars and trucks but no drivers．Welcome to Mcity，a fake（假的）"city"built by researchers who are testing out the driverless cars of the future．想象以下一个没有行人只有人行横道、有汽车和卡车可是没有司机的城镇，那么欢迎来到 Mcity，一座假的由研究人员建成以测试未来的无人驾驶情况，结合选项，故选B
68．D 细节题．根据文章内容Welcome to Mcity，a fake（假的）"city"built by researchers who are testing out the driverless cars of the future．由此可知，Mcity是研究人员建成以测试未来的无人驾驶情况，结合选项，故选D
69．D 细节题．根据文章内容Mcity is just one part of a much larger project that MTC and its partner organizations are establishing in an effort to get a whole fleet（车队） of connected and driverless cars on the road in Ann Arbor by 2021由此可知，研究人员意图尽最大努力与2021年将无人驾驶运用于真正的道路系统，结合选项，故选D
70．A 概括题．根据文章内容，本文从该系统的提出、它的原理、以及其使用进行了描述，结合选项，故A为正确选项．
点评 本文是新闻报道类阅读理解．做这类题材阅读理解时要求考生对文章通读一遍，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据
