2017-2018学年高中英语（外研版,必修一）同步课件+教师用书:Unit 5 Section Ⅰ （2份打包）

理基础 提素能 Module 5　A Lesson in a Lab 实验是进行科学研究最重要的环节，做实验时，我们一定要遵守实验室的规章制度，要注意安全，要熟悉每种仪器的用途和使用方法。做实验固然十分好玩，但是千万不能不注意安全哦！ Laboratory safety rules Science is a hands­on laboratory class.You will be doing many lab activities which may need the use of chemicals or equipment.To make sure of a safe science classroom，we provide you with a list of rules.These rules must be followed at all times. GENERAL GUIDELINES 1．Never work alone.No student may work in the lab without a teacher present. 2．When first entering a lab，do not touch any equipment，chemicals，or other materials in the lab until you are asked to do so. 3．Do not eat，drink，or chew gum in the lab.Do not use lab glassware as containers for food or drink. 4．Know the positions and operating procedures of all safety equipment，including the first­aid kit and the fire extinguisher.Know where the fire alarms and the exits are. 5．Check the labels on chemical bottles twice before removing any of the chemicals.Take only as many chemicals as you need. 6．Most chemicals in the lab are considered to be dangerous.Do not touch，taste，or smell any chemicals unless specifically asked to do so. 7．At the end of your experiment，clean everything carefully and return your equipment to where you got it.Wash your hands with soap and water after performing all experiments. WHAT TO WEAR 1．Dress properly during a lab activity.Long hair must be tied back and shoes must completely cover the feet. 2．Contact lenses should not be worn in the lab unless you are allowed by your teacher. 3．Any time chemicals，heat，or glassware is used，students will wear lab goggles.Nobody should break this rule! ACCIDENTS AND INJURIES 1．Report any accident or injury to the teacher immediately. 2．If a chemical should get into your eye(s)or onto your skin，go to see a school nurse immediately. 1．hands­on adj. 实际操作的 2．guideline n. 准则 3．procedure n. 程序 4．first­aid kit 急救包 5．fire extinguisher 灭火器 6．label n. 标签 7．goggles n. 护目镜 1．What should you do at the end o