冀教版九年级英语Unit5 Lesson 25Let’s Do an Experiment!(共16张PPT).ppt

1、 Lesson 25 Lesson 25 Lets Do an Experiment!Lets Do an Experiment!Learning aims:Aim of knowledge(知识目标)A.Vocabulary:（词汇）science experiment prove observe cardboard fillwith cover.with,turn upside down inside outsideB.Sentence Patterns（句子）1.Im sure the floor wont get wet.2.Im not sure.I think the floor

2、will get wet.3.Maybe you should do this experiment outside.Aim of ability（能力目标）How to to talk about certainty and uncertainty.Aim of emotion(情感目标)Arouse the students interest in doing science experiment.science 科学 experiment 实验;试验theory 理论;学说fill 装满jar 广口瓶;罐子upside 上部;上边prove 证实;证明observe 观察;监视scien

3、tific 科学的 method 方法;办法Fill in the blanks with the right words and the first letter is given.1.Lets do an e.2.Brian has one t and Danny has another.3.They can p whos right.4.I turn the jar u down.5.Please o carefully.xperimentheoryrovepsidebserve.Listen and answer1.What will Brain do?He will do an ex

4、periment1.Why does Danny say they should do this experiment outside?Because Danny thinks the floor will get wet.2.Whats Brains theory?Brian is sure the floor wont get wet.QUESTIONSFinish off these exercises.1.用把装满 _ 2.用把盖住 _3.我(不)确信 _4.正面朝上 _5.把翻转_6.get wet _ 7.do an experiment _8.a piece of cardboa

5、rd _9.inside（反义词）_ 10.theory（复数）_11.careful(副词）_ 11.science(形容词）_fillwithcover withI am(not)sureright side upturn upside down/turn over变湿做一个实验一块硬纸板outsidetheoriescarefullyscientificWrite down the steps of doing the experiment1.Fill a jar with water.2.Cover the top with a piece of cardboard.3.Turn th

6、e jar upside down.What will happen?You may sayIm sureIm not sure The floor will get wet.I think The floor wont get wetMaybe The cardboard can keep the water in the jar.一、I fill a jar with water.我用水把瓶子装满。fill with 用装满 (主语是人)be full of /be filled with (主语是物或容器)同义句转换。1.The rooms are full of the student

7、s now.The rooms _ _ _ the students now.2.My pocket is filled with the money.My pocket _ _ _ the money.选择。5.Can you _ the box _ books?()A fill,with B full,with C filled,with D full,in6.The child _ all the bowls _ water.()A fill,with B fills,with C is full,with D is filled,with are filled with is full

8、 of AB学以致用二.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.你把书拿倒了。right side up 是“正面朝上”的意思That picture is upside down.学以致用三、Im sure the floor wont get wet.我确信地板不会湿。b e sure 表示肯定,有把握,而be not sure 表示不确定be sure/be not sure 后可接句子，还可接代词、名词、动名词或不定式。常见用法：be sure o

9、f sb/doing sth ,be sure to do sth完成下列各题。1.我确信她会来。_that she will come here.2.他没有把握通过考试_to past the exam.3.Im sure _ Jim plays basketball well.（）A of B to C that D withIm sureHes not sureCPRACTISE.practise He _ the stockings _ christmas presents.（用装满）Please pass me a bottle _ water.A.full with B.fille

10、d of C.filling with D.full of My mother is holding the book _ _.（倒着）我弟弟用一块玻璃盖住了那个杯子。My brother _ the glass _ a piece of glass 我肯定他会来。_ _ _ he will come.filledwithDupside downcoveredwithI am sure New words:science scientific experiment fill prove method theory jar observe Phrases:be filled with be fu

11、ll of cover with turn upside down Sentence Patterns:SUMMARY sb.be sure+that 从句sb.be not sure+疑问词引导的从句First,_ a jar _ water.Then,_ the top _ a piece of cardboard.Finally,_ the jar _ _.withwithturnfillcoverupside down Read the text again and again till you can describe the content of the text by yourself.Learn to express sequence.Dont forget to preview the next lesson.HOMEWORKThank you for your presence and guidance!Good-Bye