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  3. On a clear morning in early May, Brian Lathrop, a senior engineer for Volkswagen’s Electronics Research Laboratory, was in the d

On a clear morning in early May, Brian Lathrop, a senior engineer for Volkswagen’s Electronics Research Laboratory, was in the d

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问题    On a clear morning in early May, Brian Lathrop, a senior engineer for Volkswagen’s Electronics Research Laboratory, was in the driver’s seat of a Tesla Model S as it travelled along a stretch of road near Blacksburg, Virginia, when the car began to drift from its lane. Brian had his hands on the wheel but was not in control of the vehicle. The Tesla was in Autopilot mode, a highly evolved version of cruise control that, via an array of sensors, allows the car to change lanes, steer through corners, and match the sudden movement of traffic unaided. 【F1】As the vehicle—one of a fleet belonging to Virginia Tech’s Transportation Institute, which Brian was visiting that day—lost track of the road markings, he shook the wheel to disengage Autopilot. "If I hadn’t been aware of what was happening, it could have been a completely different outcome," Brian told me recently.
   While one’s first time behind the wheel of an autonomous car (or in front of it) may feel perilous, Volkswagen’s research has shown that trust between human and vehicle blossoms rapidly and, in many cases, completely. 【F2】A decade ago, according to Brian, the company ran a series of internal studies in which it put people in the driver’s seat of a car that they were informed was fully autonomous. 【F3】Behind them, behind a curtain, sat a driver, who controlled the car using a camera feed of the road ahead, as if playing a video game. "We found that people get comfortable very quickly—almost too quickly, in fact—in letting the car drive itself," Brian said. 【F4】Free from the activity of driving, most people experience what researchers refer to as passive fatigue—a state in which awareness is dulled. It can set in after as little as ten minutes.
   Tesla strenuously warns consumers to pay attention while their car is in autonomous mode, but the warning may not be strong enough. On Thursday, Laura MacCleery, the vice-president of consumer policy and mobilization for Consumer Reports, said that the very name of Tesla’s self-driving feature-Autopilot—"gives consumers a false sense of security."
   【F5】This is the paradox facing auto engineers: how to design self-driving cars that feel trustworthy while simultaneously reminding their users that, no matter how wonderful a given model’s safety record, no driver—human or artificial—is perfect. How, in other words, to free drivers from the responsibility of driving, while burdening them with the worry that, at any moment, they will need to take back control.
【F5】
选项
答案这就是汽车工程师遭遇的矛盾：既要设计出让人放心的自动驾驶汽车，同时也要提醒用户，无论样车安全测试的记录多么完美，人为操控和自主驾驶模式都不是完美的。
解析 ①本句为复合句。句子的主干为主系表结构，冒号后的内容是对the paradox具体内容的解释说明。②第一个that引导定语从句，修饰self-driving cars。定语从句中还包含了while引导的时间状语从句，时间状语从句省略了主语和be动词，完整形式应为while they are simultaneously reminding…。③第二个that引导宾语从句，作reminding的宾语。破折号的内容为插入成分，进一步解释说明driver的范围。
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