冀教版英语八年级下Unit4Lesson25教案Lesson25Let'sDoanExperiment!?Step1：复习巩固、激情导入复习：提问unit3重点词组和句型导入：Doyouliketodoexperiment?Whatexperimenthaveyoudone??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.Ifillajarwithwater.2.Iturnthejarupsidedown.3.I'msurethefloorwon'tgetwet.4.Wecanprovewho'sright.5.We'lldotheexperimentandobservewhatwillhappen.?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：Ifillajarwithwater.fill…with…意为“用…装满…”befilledwith…=befullof…意为“充满…”fillin…意为“填上…；填充…”Eg:Onhearingthenews,hereyesarefilledwithtears.Theyfilledtheholewithwater.Fillintheblanks.知识点二：Iturnthejarupsidedown.Turn…upsidedown意为“把……翻转/倒过来”upsidedown意为“正面朝下”rightsideup意为“正面朝上”Eg:Thatpictureisupsidedown.Youholdthebookupsidedown.知识点三：I'msurethefloorwon'tgetwet.besure（that）从句，意为“肯定……，确定……”主句的主语必须是人否定形式是benotsure+疑问词引导的从句。Eg:Tomissurethathewillwinthegame.Tomisnotsurewhetherhecanwinthegame.I'mnotsurewhenhe'llcomehere.知识点四：Wecanprovewho'sright.prove是及物动词，意为“证明，证实”常用于以下结构：provesth.（tosb.）；prove（tosb.）that…；prove…（tobe）+adj/n.Eg：Thefacthasprovedtheman'shonestytousall.=Thefacthasprovedtousallthatthemanishonest.=Thefacthasprovedtheman（tobe）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：Mytheorywillproverightsomeday.Duringthetrip,heprovedamanwithastrongwill.知识点五：We'lldotheexperimentandobservewhatwillhappen.（1）observe是动词，意为“观察”observesb.dosth.observesb.doingsth.用法同see/watch/hear等Eg:Iobservedherdance.WhenIpassedbythegrass,Iobservedhimwalking.（2）happenvi意为“发生”【固定短语】sthhappenstosb（无被动语态）HappentodosthEg:Whathashappenedtoyou？Ihappenedtomeetanoldfriendyesterday.?Step5：巩固练习、检测验收教学反思：
