八年级英语下册 Unit4 Lesson 30教案 冀教版.doc

冀教版英语八年级下册Unit4 Lesson 30教案
　　Lesson 30 Keep the Candle Burning !
　　Step1、We have learned some experiments，such as “The force is all around you” “Weird mud”，today let's enter another experiment.
　　Step2、Presentation
　　1）Come to “THINK ABOUT IT！”Discuss them in groups.
　　2）Presentation
　　Look at these things. Can you name them？How do we use them to do the experiment？ Fill out the charts.
　　1.Put the candle in the candleholder.
　　2.Put the candleholder in the dish.
　　3.Fill the dish half full of water.
　　4.Light the candle.
　　5.Let the candle burn for two or three minutes.
　　6.Carefully put the jar over the candle until the top of the jar rests on the dish.
　　7.Look at the water in the jar. What observation can you make
　　Step3 Doing and explaining.
　　Divide students into groups with three or four. Have them explain as they do it. After doing that，what's your conclusion？Is it interesting？What experiment would you like to do in this unit？Choose one and have a try as the PROJECT says.
　　Class closing
　　1、Finish off the activity book.
　　2、Try to do another experiment that you are interested in.
　　3、Preview Lesson 31.
　　Language points
　　1、As the candle burns, it uses up oxygen in the jar.
　　burn  v. （burned, burned /burnt, burnt）
　　Don't burn yourself when you light the candle.
　　use up
　　Glue is all used up.
　　as   conj
　　She listens to the radio as she washes clothes.
　　We should do as we say.
　　You did the homework as well as he did.
　　Good-bye everyone.