6、1. rules                             2. bring

3. never/ don’t/ you mustn’t     4. listen to

5. it’s important to （for）students/ the rules are for students’ safety / it’s safe to obey

听力材料：

I’m glad that you’ve chosen chemistry. Before our lesson, I’d like to use a few minutes to talk about the lab rules. You’d better make some notes and write the rules down. Ready? OK, let’s begin. First, you are not allowed to bring any food or drink to the lab. You can’t eat or drink here. It’s dangerous. Second, never run around when you come into the lab. Third, please don’t touch anything in the cupboards or on the shelves, and don’t taste anything in the bottles and boxes there. While doing experiments, you must listen to your teacher and watch carefully. All of the above are very important to you for your safety. Please obey the rules and enjoy the hours in the lab.

That’s all. Now, Let’s begin our lesson.