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2019-2020年八年级英语下册 Unit4 Lesson25教案 冀教版Lesson25 Lets Do an Experiment!?Step1：复习巩固、激情导入复习：提问unit3重点词组和句型导入：Do you like to do experiment? What experiment have you done?Step2：出示目标、明确任务1.牢记本课黑体词汇：science/experiment/fill/prove/scientific/method等；2.能分角色表演对话；3.背诵重点句子1-5，并灵活运用相关知识点。?Step3：自主学习、合作探究任务一：限时5分钟，熟读所有词汇，牢记黑体词汇任务二：熟读对话，把握其意，画出不理解处，同桌之间交流任务三：背诵重点句子，并自学知识点，画出不理解处，同桌之间交流1.I fill a jar with water.2.I turn the jar upside down.3.Im sure the floor wont get wet.4.We can prove whos right.5.Well do the experiment and observe what will happen.?Step4：师生互动、展示提升互动一：单词记忆比赛互动二：对话熟读接力赛互动三：知识点展示大比拼知识点一：I fill a jar with water.fillwith意为“ 用装满 ”be filled with=be full of意为 “充满”fill in 意为“ 填上；填充”Eg: On hearing the news, her eyes are filled with tears.They filled the hole with water.Fill in the blanks.知识点二： I turn the jar upside down.Turnupside down意为“把翻转/倒过来”upside down 意为“正面朝下”right side up意为“正面朝上”Eg: That picture is upside down.You hold the book upside down.知识点三：Im sure the floor wont get wet.be sure （that）从句，意为“肯定，确定”主句的主语必须是人否定形式是be not sure+疑问词引导的从句。Eg: Tom is sure that he will win the game.Tom is not sure whether he can win the game.Im not sure when hell e here.知识点四：We can prove whos right.prove是及物动词，意为“证明，证实”常用于以下结构：prove sth.（to sb.）；prove（to sb.）that；prove（to be）+adj/n.Eg： The fact has proved the mans honesty to us all.=The fact has proved to us all that the man is honest.=The fact has proved the man （to be） honest.prove也可以作不及物动词，意为吧“证明表明（自己）是”后跟形容词或名词。Eg： My theory will prove right some day.During the trip,he proved a man with a strong will.知识点五： Well do the experiment and observe what will happen.（1）observe是动词，意为 “观察”observe sb. do sth.observe sb.doing sth.用法同see/watch/hear等Eg: I observed her dance.When I passed by the grass,I observed him walking.（2）happen vi 意为“发生”【固定短语】sth happens to sb（无被动语态）Happen to do sthEg: What has happened to you？I happened to meet an old friend yesterday.?Step5：巩固练习、检测验收教学反思：
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