【正文】
andle burns,it ________up oxygen in the the candle stop ________,it has used up all the water inside the jar goes________. Step 7. Sum up 1. Master the words and expressions . 2. Master the experiment. Step 8. Homework 1. Understand the meanin g of the text and do it in samll groups . 2. Remember the mastery words. 3. Finish the activity book in lesson 30. 4. The next reading.