本文为科普说明，主要介绍了一种能侦查出污染物质的新技术——“机器鱼”。
1．B 推理判断题。根据第二段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.可判断作答。
2．C 细节理解题。根据第三段They will be packed with pollution sensors(传感器)that can electronically “smell” harmful chemicals in the water.可判断选C。
3．D 细节理解题。根据倒数第四段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.可判断选D。
