八年级英语冀教版下unit4单元复习课件.ppt

9.To make a candle burn, you light it. 10.Carefully put the jar over the candle until the top of the jar rests on the dish. 11.What conclusion can you make? 12.As the candle burns, it uses up oxygen in the jar. (use up ,用完，用光 ) 13.The water inside the jar then rises. 14.How far does the water rise? 15.The water rises and fills about one-fifth of the jar. (one-fifth,五分之一。 分数表达：基数词 / 序数词(s) 16.I think so. / I don’t think so. It is Easter Sunday We dont want them to see her. I am sure nobody will see it They put chocolate eggs on the ground Where did Dany hide himself 1.use up 2.the top of the jar 3.a shallow plate/dish 4.light a candle 1.用完，用光 2.广口瓶的顶部 3.一个浅盘 4.点燃蜡烛 基本词汇 1. Carefully put the jar over the candle until the top of the jar rests on the dish. 2.Let the candle burn for two or three minutes. 3.As the candle burns, it uses up oxygen in the air. 4.There is about one-fifth oxygen in the air. 5.The candleholder is holding the candle. 6.Science is so interesting. 7.I am sure that youll like this experiment. 8.To make the candle burn , you light it. There are twelve candles on the cake She has used up all the money I am sure you can do the experiment by yourself Let the man wait for one or two hours. I need matches to do the experiment. 1.be ready for... 2.a full galss of water 3.turn over 4. hold up... 5.push down 1.准备好 2.一满玻璃杯水 3.翻转 4.向上拖住 5.向下推 基本词汇 1. Do you want to surprise your friends? 2.The cardboard will hold the water up. Air is heavier than we think. It pushes us down from above Cover the glass with a cardboard Hold it over your friends head The cardboard will hold the water in the glass Air is heavier than we think 1.do an experiment 2.fill ...with 3.turn...upside down 4. right side up 5.scientific method 1.做一个实验 2.用...把...装满 3.把...翻转过来 4.正面朝上 5.科学方法 基本词汇 　1. A theory predicts what will happen. 2. An experiment shows what happens. 3. I fill a jar with water. (fill … with … ，用……装满…… be filled with 是其被动式，意为“装满……的” be full of 与be filled with 意思相