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（創(chuàng)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（難以置信的） 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（未鋪砌的） roads，and even a four-lane（四車道的） 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基礎(chǔ)設(shè)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（涂鴉），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（車隊） 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（半自動） 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 本文主要講述了Mcity--一座假的由研究人員建成以測試未來的無人駕駛情況，以及其工作的具體細(xì)節(jié)．
解答 67．B 細(xì)節(jié)題．根據(jù)文章內(nèi)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．想象以下一個沒有行人只有人行橫道、有汽車和卡車可是沒有司機的城鎮(zhèn)，那么歡迎來到 Mcity，一座假的由研究人員建成以測試未來的無人駕駛情況，結(jié)合選項，故選B
68．D 細(xì)節(jié)題．根據(jù)文章內(nèi)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是研究人員建成以測試未來的無人駕駛情況，結(jié)合選項，故選D
69．D 細(xì)節(jié)題．根據(jù)文章內(nèi)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（車隊） of connected and driverless cars on the road in Ann Arbor by 2021由此可知，研究人員意圖盡最大努力與2021年將無人駕駛運用于真正的道路系統(tǒng)，結(jié)合選項，故選D
70．A 概括題．根據(jù)文章內(nèi)容，本文從該系統(tǒng)的提出、它的原理、以及其使用進行了描述，結(jié)合選項，故A為正確選項．
點評 本文是新聞報道類閱讀理解．做這類題材閱讀理解時要求考生對文章通讀一遍，做題時結(jié)合原文和題目有針對性的找出相關(guān)語句進行仔細(xì)分析，結(jié)合選項選出正確答案．推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案，切忌胡亂猜測，一定要做到有理有據(jù)
