听讲座,填空(每空不超过3个单词): repetitive a. 重复的 hands-on 亲身实践的 safety precautions 安全保护措施 regulation n. 规章 verbal a. 口头的 diagram n. 图表 illustration n. 插图 gear n. 工具 hazard n. 危险 open-toed 露趾的 mitigate v. 降低,减轻 loose a. 松的 roll up 卷起 dangle v. 悬挂 goggles n. 护目镜 emergency eye-washer 紧急洗眼器 emergency shower 紧急喷头 exhaust hood 排风罩 divert vt. 转移 fume n. 烟 fire extinguisher 灭火器 douse vt. 把 ...... 弄熄 fill out 填写 revise vt. 修正 5 Tips to Know Before Your First Lab Class 1. (1)______________ the experiment in advance Follow verbal (2)_______________ Review printed guide 2. Wear the right clothes and gear No open-toed shoes Remove (3)______________ and dangling jewelry Lab coat or apron, (4)_____________and goggles 3. Be aware of safety equipment and its (5)______________ Emergency eye-washers and emergency showers Exhaust hoods Fire blankets and(6)__________ 4. Fill out (7)________________ (8)_________________ important measurement and observation 5. Complete lab report Have a (9)_________________ of experiment Reread and (10)_________________ it when necessary