专题03 阅读理解-2021年中考英语必考题型终极押题（广州专用）

2021中考阅读理解冲刺抢分练（广州专用） 【1】 Lab Safety Rules Science labs offer great opportunities for learning, teaching, and research. They also pose hazards that require proper safety precautions. Stay safe when conducting your labs by following these guidelines. Dress appropriately Tie back long hair, and wear suitable gloves, googles, and other protective equipment. Proper supervision Don’t perform lab experiments without instructor supervision (unless given permission to do so). Know location of emergency numbers & safety equipment Know the location of safety equipment and emergency phone numbers (such as poison control) so you can access them quickly if necessary. No food Don’t eat or drink in the lab and never taste chemicals. ID hazards Identify hazardous materials before beginning labs. Be attentive Be attentive while in the lab. Don’t leave lit Bunsen burners unattended or leave an experiment in progress. Be careful when handling hot glassware Turn off all heating app