2. 外语
  3. In 1995 about 700,000 robots were operating in the industrialized world. Over 500,000 were used in Japan, about 120,000 in Weste

In 1995 about 700,000 robots were operating in the industrialized world. Over 500,000 were used in Japan, about 120,000 in Weste

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问题    In 1995 about 700,000 robots were operating in the industrialized world. Over 500,000 were used in Japan, about 120,000 in Western Europe, and about 60,000 in the United States. Many robot applications are for tasks that are either dangerous or unpleasant for human beings. In medical laboratories, robots handle potentially dangerous materials, such as blood or urine samples(尿样). In other cases, robots are used in repetitive, unchangeable tasks in which human performance might degrade over time. Robots can perform these repetitive, high-precision operations 24 hours a day without fatigue. A major user of robots is the automobile industry. General Motors Corporation uses approximately 16,000 robots for tasks such as spot welding(点焊), painting, machine loading, parts transfer, and assembly. Assembly is one of the fastest gnawing industrial applications of robotics. It requires higher precision than welding or painting and depends on low-cost sensor systems and powerful inexpensive computers. Robots are used in electronic assembly where they load microchips on circuit boards.
   Activities in environments that cause great danger to humans, such as locating sunken ships, cleanup of nuclear waste, exploring for underwater mineral deposits, and active volcano exploration, are ideally suited to robots. Similarly, robots can explore distant planets. NASA’s Galileo, an unmanned space probe, traveled to Jupiter in 1996 and performed tasks such as determining the chemical content of the Jovian atmosphere.
   Robots are being used to assist surgeons in installing artificial hips, and very high-precision robots can help surgeons with delicate operations on the human eye.
选项 A、Robots
B、Uses of Robots
C、Development of Robots
D、Advantages of Robots
答案B
解析 根据文章的整体意思来做。第一段通过举例说明机器人使用的数目、领域、条件等等。第二段强调机器人使用的环境。选择项中A项Robots太笼统，而此处文章很具体；C项意思与文章不沾边；D项意为“文章讲机器人优点”，但综合全文，优点是讲了一些，但没有完全侧重这一方面。所以B项正确。
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