约3850字。

　　Unit 16 Scientists at work教案
　　Teaching Plan
　　Period 1  Warming up & Listening
　　Learning Aims
　　1.To encourage the students to think and talt their science subjects and activate their relevant vocabulary at the same time.
　　2.To learn what should be paid attention to when doing an experiment in a lab and how to give instructions to others.
　　3.To train the students’ ability of listening for information.
　　Learning Procedures
　　Step 1 Warming up
　　Today, we are going to talk something about the subjects you are learning.
　　Q1: How many subjects are you learning now?
　　Q2: What are the subjects in which you learn science? Is it easy for you to learn them?
　　1). Group work
　　Divide the whole class into two groups, one group is going to talt the question “ What do you learn about for each field of science?”, and the other “How are you learning these subjects?” Write down the result of the discussion in a card, and choose the best member to do the report.
　　2). Class work
　　Enjoy some pictures about the facilities in labs and students doing experiments in labs.
　　Q: Which subjects are connected with these pictures? Do you often do experiments in the lab?
　　Step2 Pre-listening
　　1).Group work
　　Is it necessary for you to do experiments in the lab? List the reasons in the card and see which group can find more.
　　2).Class work
　　Do you still remember what your teacher often remind you before, when and after you do an experiment? Divide the whole into several groups to have a competition in class and see which group will win the game.
　　Step 3  Listening
　　1). Listen to what Mr. Zhu is talking to his students for the first time, focusing on the subjects mentioned in the passage.
　　2). Listen to the tape for the second time to write down some key words to the questions and check with the partners.
　　3). Listen to the tape for the third time. Understand the whole passage fully and check if the answers are complete, especially pay attention to different structures of giving instructions.