专限时训练(三十)　[科普知识型阅读理解(二)]

　　(限时：每篇7分钟)

　　(一)

　　Schools of robotic fish could be sent into the Thames to produce a 3D pollution map of the river.

　　Researchers at the University of Essex in Colchester are working on the robotic fish as part of a ￡2.5million EU­funded project to find new ways of monitoring water waste.

　　Each fish will be about 50cm long, 15cm high and 12cm wide.They will be packed with pollution sensors(传感器)that can electronically “smell” harmful chemicals in the water.

　　Scientists have developed “swarm(群)intelligence techniques” which allow the fish to work as a team without humans.

　　The robotic fish will communicate with each other using wi­fi as they seek out areas of pollution.They work out where they are with inbuilt GPS systems and artificial intelligence software will enable them to move without the need for a human operator: they will only warn staff if areas of pollution are found.

　　A fish that finds pollution sends the data of the location to others.

　　“Each school will contain five fish, and they will constantly monitor for pollutants，” said Dr.Dongbing Gu, who is leading the research.

　　“When they find something, they will send a message to the rest of the school, who will then gather in the area to take readings.”

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