阅读短文，从方框中选出能填入空白处的最佳选项，选项中有两项为多余选项
It was a safe bet that a robot made your car and made your computer. Soon, robots could be making your bed and breakfast too.
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Many companies are working on designs for small robots. Products like the Roomba, a robot that can clean floors, are flying off the shelves.
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It's partly a matter of technology. Devices (装置) that can recognize and respond to a human voice have been developed. There are now a few different ways for robots to move around. ⁽³⁾
Robots are being made smaller and smaller. They are also becoming more and more powerful.
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Since the day the television remote control was invented, people around the world have searched for new ways to be lazy. Considering more and more people can afford robots, the time seems ripe (成熟) to introduce robots to the ordinary family.
To be sure, robots that walk on two legs and talk like people are still a long way off.
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One thing is certain—when these robots do come into our homes, it will change things for ever.
A. Why are robots important?
B. They can walk, crawl or ride on wheels.
C. What's behind this new robot revolution (变革)?
D. A bigger part of the story is on the demand (需求) side.
E. They are working in factories and making products like cars.
F. Robots are going to move out of research departments and into your home.
G. However, robots that do basic housework like cleaning have come out already.
解析：
1. 第(1)空：前文提及机器人即将承担家务，后文围绕小型家用机器人的设计及热销产品展开，F选项“Robots are going to move out of research departments and into your home.”能自然衔接上下文，引出家用机器人的主题。
2. 第(2)空：后文阐述了机器人走进家庭的技术原因，C选项“What's behind this new robot revolution (变革)?”以问句引出后文的原因分析，符合逻辑递进关系。
3. 第(3)空：前文指出机器人有多种移动方式，B选项“They can walk, crawl or ride on wheels.”是对移动方式的具体举例，与前文内容呼应。
4. 第(4)空：前文讲技术层面的原因，后文转向人们的需求与购买力，D选项“A bigger part of the story is on the demand (需求) side.”承接前文的“partly a matter of technology”，引出需求因素，衔接自然。
5. 第(5)空：前文提到类人型机器人还遥不可及，后文说家用机器人会改变生活，G选项“However, robots that do basic housework like cleaning have come out already.”通过转折衔接上下文，说明基础家务机器人已问世。
