| 请听一段独白，然后根据所听内容完成第1－5小题。在每小题句子空白处填写适当的词语， 使句子意思与所听内容一致，每空词数不限。 |
| 1. Before the chemistry lesson, the teacher is talking about the lab _____________. 2. First, you are not allowed to _____________ any food or drink to the lab. 3. Second, _____________ run around when you come into the lab. 4. While doing experiments, you must _____________ your teacher and watch carefully. 5. The teacher's words are very important for the students' _____________. |