RFID tags are a small part of this phenomenon. “The world is going to be a loosely coupled set of individual small devices, connected wirelessly, ”predicts Dr. J. Reich. Human right supporters are nervous about the possibilities of such technology. It goes too far tracking school kids through RFID tags, they say. We imagine a world in which a beer company could find out not only when you bought a beer but also when you drank it. And how many beers accompanied by how many biscuits.

　　When Marconi invented radio, he thought it would be used for ship-to-shore communication. Not for pop music. Who knows how RFID and related technologies will be used in the future. Here’s a wild guess: Not for buying milk.

　　【文章大意】这是一篇说明文。主要讲述是一项新技术RFID的应用和它的前景。

　　1. The article is intended to______.

　　A. warn people of the possible risks in adopting RFID technology

　　B. explain the benefits brought about by RFID technology

　　C. convince people of the uses of RFID technology

　　D. predict the applications of RFID technology

　　【解析】选D。主旨大意题。通读全文可知该文章主要讲述新技术的应用。故D项正确。

　　2. Passive RFID tags chiefly consist of______.

　　A. scanning devices B. radio waves

　　C. batteries

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