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  3. Killing a soldier removes one enemy from the battle. Wounding him removes three: the victim and the two who have to carry him fr

Killing a soldier removes one enemy from the battle. Wounding him removes three: the victim and the two who have to carry him fr

admin2021-04-06  12
问题    Killing a soldier removes one enemy from the battle. Wounding him removes three: the victim and the two who have to carry him from the battlefield. That cynical calculation lies behind the design of many weapons that are intended to incapacitate rather than eliminate. But robotics may change the equation.
   The Battlefield Extraction-Assist Robot, or BEAR for short, is a highly agile and powerful mobile robot capable of lifting and carrying a combat casualty from a hazardous area across uneven terrain. When it is not saving lives, it can perform difficult and repetitive tasks, such as loading and unloading bullets.
   The current prototype BEAR is a small, tracked vehicle with two hydraulic arms and a set of video cameras that provide a view of its surroundings to its operator via a wireless link. It has been developed by TATRC (a research center) in collaboration with Vecna Technologies. Daniel Theobald, BEAR’s inventor and Vecna’s boss, says versatility is at the heart of the robot’s design and "the whole idea from the start was to design a general-purpose robot."
   The BEAR’s operator can control the robot in two ways. One, a joystick, can be embedded into the grip of a rifle and manoeuvred by the soldier’s fingertip when he is holding his weapon to his shoulder. The advantage of this is that he does not need to put his gun down to rescue his comrades. The other means of control, a special glove designed by AnthroTronix, can sense the wearer’s hand movements and direct the BEAR accordingly. For example, if the gloved hand moves to the left, the robot will follow. If the hand moves backwards, the robot will slow down or stop.
   Over the past year BEAR has been tested at the army’s battle laboratory. It has shown that it can travel at around 12 mph across a flat surface. It can also move over soil, sand and gravel, through trees and inside buildings, albeit at lower speeds. Several more years of tests are planned, but Dr. Gilbert is optimistic that BEAR will come through them. If it does, soldiers will be able to get on with their primary job of killing the enemy, without having to worry so much about what the enemy has done to their friends.
   
What is the author’s attitude towards the function of BEAR in the future?
选项 A、Ambiguous.
B、Optimistic.
C、Suspicious.
D、Pessimistic.
答案B
解析 态度题。此题需要对全文脉络有整体的把握。第一段提到“许多武器在设计时就运用了这种恶毒的算计思维”时用了cynical这个贬义词，最后一句说But robotics may change the equation，这时我们可以初步推测出作者对机器人的态度是积极的、赞成的。接着，文章对BEAR战场机器人的用途、原型、设计理念、操作方式等作了客观介绍。最后一段提到了Gilbert博士对BEAR的乐观态度，然后作者评论到“如果事实果真如此，士兵们就能够专心执行杀敌这个首要任务，而无需太担心敌人对他们的战友下了什么毒手”。因此可以推测出B项“乐观的”为正确答案。
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