The General Idea of This Period
In this period we’re going to learn another reading passage.
Teaching Aims
1 .Learn and master the following words and expressions:
rust boil ordinary steam float form dissolve add to keep out of
2. Learn to describe a simple scientific experiment.
Teaching Difficult Points
1. Enable the Ss to write a report on a scientific experiment.
2. Learn to use the new words and expressions in this part.
