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[ Content:Unit 4 Lesson 30 Keep The Candle Burning Students:Junior two students Date:20200408 Learning aims: 1. Learn the new words: match, light, burn, use up, shallow, candleholder, oxygen, onefifth 2. Learn the important sentences ① Light the cand le. ② As the candle burns, it uses up oxygen in the air ③ There is about onefifth oxygen in the air, so the water rises and fills abou