Industrial robots are already working in many factories around the world and in our homes, for instance as smart vacuum cleaners. Scientists say in a few years we will start seeing so-called “social rebots，” capable of engaging with people. Today’s robots can build cars and explore underwater objects. But interacting with people is more complex than simply taking an incoming message, says Massachusetts Institute of Technology researcher Cynthia Breazeal. “Social robots really interact with people in ways you feel like you’e interacting with someone rather than something,” she said .’’And social robots are really designed to engage you in much more of an interaction that feels like a cooperation or partnership.” At the Naval Research Laboratory, near Washington, scientists are researching which features robots should have to be able to live with humans. Researcher Alan Schultz says social robots must be adapted to social situations. “You know if you’re going to have robots out in the wild，so to speak, they have to follow our standards and they have to do things in the way we expect, so that we can move about out environment and not be interrupted by them or have to think hard about the fact that they’re around us，” he said. Social robots do not necessarily have to have a human face. Steve Cousins, the CEO of Savioke Robotics in Cupertino, California, says their robot called Botlr is already being tested in a hotel, delivering small items to people. “It’s designed to be in human space and interact with people and around people，” he said. "So it interacts with the front desk agent when they’re sending it somewhere. It interacts with people in the elevator as it’s going along. And，it interacts with people at the door when the delivery arrives.” So far, social robots are limited to very simple tasks like relaying message or taking family photos. But Cynthia Breazeal, who designed this one, says their abilities may be extended into many different areas. What will social robots do according to the scientists? A.They will cooperate with people. B.They will clean the big house C.They will explore underwater objects. D.They will build different kinds of cars. Which of the following is true according to the passage?A.Social robots are more difficult to design. B.Industrial robots are more complicated to design. C.Social robots can be more useful than industrial robots. D.Industrial robots can do less than social robots. It can be inferred from the passage that_______.A.social robots only serve the people they like B.it’s better for social robots to work in a hotel C.it’s better for social robots to have a human face D.social robots will be under the control of human beings What does the passage mainly talk about?A.The funcitionof social robots. B.The use of industrialrobots. C.The daily lifeof robots. D.The way of designing robots. Which of the following best describes the writer’s tone in the passage?A.Critical B.Prejudiced C.Subjective D.Objective