Social robots are about to bring technology to the everyday world in a more humanized way, said Cynthia Breazeal, chief scientist at the robot company Jibo.

　　While household robots today do the normal housework, social robots will be much more like companions than mere tools.

　　For example, these robots will be able to distinguish when someone is happy or sad.

　　This allows them to respond more appropriately to the user.

　　...

　　QWhat does the passage mainly present?

　　A．A new design idea of household robots.

　　B．Marketing strategies for social robots.

　　C．Information on household robots.

　　D．An introduction to social robots.

　　[答案]　D　主旨大意题。第一段第一句“Whether in the home or the workplace, social robots are going to become a lot more common in the next few years.”开篇点题并结合对全文的整体理解可推知，本文是一篇说明文，主要对社交机器人进行了简要的介绍。故选D。

　　技能演练

　　CHICAGO (Reuters)­Smoking not only can wrinkle (皱纹) the face and turn it yellow—it can do the same to the whole body, researchers reported on Monday.

　　The study, published in the Archives of Dermatology, shows that smoking affects the skin all over the body—even skin protected from the sun.

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