A
(2015·泰安检测)It’s a safe bet that a robot made your car and your computer.Pretty soon.Products like the Roomba，a robot that can clean floors，are flying off the shelves.
What’s behind this new robot revolution? It’s partly a matter of technology.Devices that can recognize and respond to a human voice have been developed so people can find robots with such function in the market.There are now a few different ways for robots to move around.They can walk，crawl(爬行) or ride on wheels.Robots are being made smaller and smaller.They are also becoming more and more energy－efficient. part of the story is on the demand side.From the day the television remote control was invented，people around the world have searched for new ways to be lazy.Take into consideration that more and more people can afford robots，and the time seems ripe to introduce robots to the average family.
To be sure，robots that walk on two legs and talk like people are still a long way off.However，robots that do basic housework such as cleaning or gardening are sure to come out soon.One thing is certain—when these robots do come into our homes，it will change things forever.
【解题导语】 本文是一篇说明文。文章介绍了机器人的最at can walk on two legs and talk like people.
D．A robot that can recognize and respond to a human voice.
解析：选D。细节理解题。根据第一段第二句可排除A项；根据最后一段第一、二句可排除B、C两项；根据第三段中的“Devices that can recognize and respond to a human voice have been developed...in the market.”可知D项正确。es.
D．The demand also contributes to the new robot revolution.
解析：选D。段落大意题。根据D。
解析：选B。文章结构题。第一段引入话题；第二段介绍了机器人的发展趋势；第三、四段分别从科技的角度和消费者的需求和购买力的角度分析了机器人变革的幕后因素；最后一段则侧重于作者的预测。B
According to a new US study，couples who expect their children to look after them in old age should hope they have daughters because daughters are twice as attentive as sons overall.
The research by Angelina Grigoryeva，from Princeton University，found that，while women provide as much care for their elderly parents as they can manage，men do as little as they can get away with and often leave it to female family members.
Her analysis of the family networks of 26，000 old Americans concluded that gender(性别) is one of the most important things that decide whether or not people will actively care for their elderly parents.sented at the annual conference of the American Sociological Association in San Francisco，she concludes that simply having a sister makes men likely provide less care.
Using data from the University of Michigan Health and Retirement Study，a study which has been tracking a cross－section of over－50s for the last decade－giving efforts when they have a sister－giving responsibilities to their sisters.”ibilities，a figure which has risen by a tenth in a decade.
But many are doing so at the risk of their health.The census showed that those who provide 50 hours or more of care a week while trying to hold down a full－time job are three times more likely to be struggling with ill health than their working counterparts who are not carers.【 本文是一篇说明文。研究表明在照顾年迈的父母方面性别差异影响着子女照顾父母时间的长短。其中女儿比儿子更愿意付出时间照料年迈的父母。家中有姐妹的男士常常将照看老人的责任推给其姐妹。但是很多承担照顾老人的责任的子女自身都有潜在的健康问题。 to the passage，what’s the most important factor to predict if people will actively care for the elderly?
A．Education.B．Gender.解析：选B。细节理解题。根据第三段中的“...concluded that gender(性别) is one of the most important things that decide whether or not people will actively care for their elderly parents.”可B。________． are twice as likely as daughters to care for parents in old age
C．sons and daughters seem to give equal care to their parents
D．sons are unwilling to leave care－giving responsibilities to their sisters解析：选A。细节理解题。根据第四段“In a paper...in San Francisco可知美国社会学家Angelina Grigoryeva得出结论家中有姐妹的男士对父母的照顾可能会更少与A项内容一致。故A项正确。ould give up their job to care for the elderly.
B．Many care providers work longer hours than others.
C．Many care providers have potential health problems.
D．People shouldn’t pass on caring responsibilities to others.
解析：选C。推理判断题。根据最后一段主题句“But many are doing so at the risk of their health.”及下C。________．es
C．comparing different gender behavior
D．analyzing various researches and data
解析：选D。写作手法题。通读全文可知作者在第三、五、八段给出了研究的数据接着在相应数据段落的下一段分析得出结论。由此可推知这篇文章是以分析各种研究和数据得出相关结论的写作手法展开的。故选D。