(A) The definition of "robot" has been confusing from the very beginning. The word first appeared in 1921, in Karel Capek's play R.U.R., or Rossum's Universal Robots. "Robot" comes from the Czech for "forced labor." These robots were more robots in spirit than in form, though. They looked like humans, and instead of being made of metal, they were made of chemical batter. The robots were far more efficient than their human counterparts, and also way more murder-y—they ended up going on a killing spree.
(B) The real-world definition of "robot" is just as ambiguous as those fictional depictions. Ask 10 roboticists and you'll get 10 answers. But they do agree on some general guidelines: A robot is an intelligent, physically embodied machine. A robot can perform tasks autonomously. And a robot can sense and manipulate its environment.
(C) Modern robots are not unlike toddlers: It's hilarious to watch them fall over, but deep down we know that if we laugh too hard, they might develop a complex and grow up to start World War III. No other human creation inspires such a confusing mix of awe, admiration, and fear: We want robots to make our lives easier and safer, yet we can't quite bring ourselves to trust them. We're crafting them in our own image, yet we are terrified they'll supplant us.
(D) But such hesitation poses no obstacle to the booming field of robotics. Robots have finally grown smart enough and physically capable enough to make their way out of factories and labs to walk and roll and even leap among us. The machines have arrived. You may be worried a robot is going to steal your job, and we get that. This is capitalism, after all, and automation is inevitable. But you may be more likely to work alongside a robot in the near future than have one replace you. And even better news: You're more likely to make friends with a robot than have one murder you. Hooray for the future!
1. According to the passage, it is believed that modern robots look like
2. The phrase "a killing spree" in paragraph (A) is closest meaning to
3. Why does the writer mention "fictional depictions" in paragraph (B)?
4. The word "roboticists" in paragraph (B) refers to
5. Which of the following is NOT true according to the passage?
6. The word "supplant" in paragraph (C) is closest in meaning to
7. What does the word "their" in paragraph (D) refer to?
8. The word "inevitable" in paragraph (D) can be replaced by
9. What does the word "them" in paragraph (C) refer to?
10. In which paragraph does the writer give a definition?