Find a poor conductor of electricity: water, steel, rubber, copper.
译句：找到电的不良导体: 水，钢，橡胶，铜。（答案附在文末）
poor /pɔr/ adj. 贫困的, 贫乏的, 低劣的, (身体)衰弱的, 可怜的
[反义词]：adj. rich, fortunate, good
[惯用语]：
poor quality 质量差的
poor thing 可怜的人，可怜的家伙
poor service 差劲的服务
in poor health 身体不好, 虚弱
poor soil 贫瘠土壤
[例句]:
• Although they are poor they are happy.
虽然他们很穷，但很快乐。
• Wood is a poor conductor of sound.
木头是声音的不良导体。
• The customers complained about the poor after-sales services.
顾客抱怨售后服务差。
conductor /kən'dʌktɚ/ n. (乐队)指挥 , 售票员, 列车长,〈电〉导体
[惯用语]：
bus conductor 公共汽车售票员
electrical conductor 导电体，电导体, 电导线
lightning conductor 避雷针
poor conductor 不良导体
[例句]:
• Copper is a good conductor of electricity.
铜是良导体。
• The bus conductor collected money from the passengers.
公共汽车售票员向乘客收钱。
• The conductor worked on the train.
列车长在火车上工作.
copper /'kɑpɚ/ n. 铜, 铜币；adj. 铜的；vt. 镀铜于
[惯用语]：
copper mine 铜矿
copper alloy 铜合金
copper wire 铜线
copper ore 铜矿石
copper tube 铜管
[例句]:
• Brass is an alloy of copper and zinc.
黄铜是铜和锌的合金。
• Copper is a good medium for the conduction of heat and electricity.
铜是热和电的良导体。
答案：rubber
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