冀教版九年级英语Unit 5 Lesson25《Let's Do an Experiment》(共17张PPT).ppt

1、Lesson 25Lets Do an Experiment!洋县贯溪初级中学王宏伟Learning aims:1.Master words and expressions:science,experiment,theory,jar,upside,pour,correct,scientific,method,raincoat,force,pressure,conclude,do an experiment,fill with,coverwith,turnupside down,takeoff,I think the fioor will get wet,pour out,enough to d

2、o.2.Describle the experiment in English.3.Educate the students to love science.Listen to the tape,then answer the questions.1.Where are they and what will they do?Read the lesson and fill in the blanks1.2.3.1.materials:_,_,_2.how to do the experimentFirst,_Second,_Third,_ At last,_ 3.guess the resul

3、tA:_ B:_ 4.conclusion:_Read the dialogue with the following questions.Step 1 Preparation:Make a list of the materials and tools that we will use in the experiment.Water,a jar,a piece of cardboard.Step 2 Theories:Write down two different theories.1.The floor will get wet.2.The floor wont get wet.Step

4、 3 Main steps:Write down the steps of doing the experiment.1.Fill a jar with water.2.Cover the top with a piece of cardboard.3.Turn the jar upside down.4.Take your hand off the cardboard.Work in groups and think of this experiment.Discuss it and describe how do it in English.Write down the result of

5、 the experiment.The force of air will keep the water in the jar.How do we do the experiment?Lets do an interesting experiment.First,I _ a jar _ a desk,_ it _ water,then _the top _ a piece of cardboard.When I _the jar _ _,can you guess what will happen?putonfillwithcoverwithturnupsidedown1.I fill a j

6、ar with water.我用水把瓶子装满。fill with 用装满He has filled his case with many books.他已经把书装满了箱子。coverwith 用盖住I cover the top with a piece of cardboard.2.I turn the jar upside down.我把广口瓶倒置。upside down 的意思是“向下翻转过来”。You hold the book upside down.right side up 是“正面朝上”的意思。3.take off根据句意及首字母提示完成下列句子。1.Do you often

7、do e _ in your physics class?2.Ill p _ that what he said is right.3.He likes to read books about s _.4.Mr.Smart sat in a corner and o _ what was going on with this little aunt.xperimentsroveciencebserved选择与画线部分意思相同或相近的词。1.Is the theory right or wrong?A.idea B.way C.mind D.answer2.Dont turn the bottle upside down.A.away B.off C.up D.over3.When I do the experiment,you must watch closely.A.learn B.know C.see D.observe4.-Excuse me!May I ask you a question?-Certainly.A.No B.Sorry C.Sure D.Thanks请根据课文内容,以“An InterestingExperiment”为题写一篇小作文。