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Unit 16 Scientists at work Teaching goals: Talk about science and scientists Practise giving instructions. Learn to write an argumentative essay. Discuss and evaluate Pros and Cons. Astronomical telescope The nature of lightning Question : When you’re doing experiment in a lab, what should you pay attention to ? Student1: We shouldn't’t enter the lab without a teacher. Student2: We should follow the teacher’s instructions. Student3: Don’t touch anything without teacher’s permission. Students: ----- Listening 1. Listen to the tape. Tick the things that Mrs. Zhu talks about. ( ) safety in the lab ( ) gloves ( ) long hair ( ) experiments ( ) shoes ( ) liquids ( ) car accidents ( ) gases ( ) flames √ √ √ √
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