Lesson25:Let’sDoanExperiment!导学案一、学习目标：掌握词汇：略二、教学重难点：fill…with,turn…upsidedown,sb.besure+that从句,及否定形式：benotsure,三、学习过程：1、课前预习：同学们，你们预习的情况如何呢？让我们来检查一下看看吧！重点单词：科学的adj._______,科学n.______，科学家n._________,实验n.；进行实验v.________,装满v.______,theory_______,prove______,预测v._________,上部；上边___________，观察，监视_____________重点短语:用…把…装满:______________,用…把…盖住:___________,…被…覆盖:____________,正面朝上:___________,充满…,填满…:____________________，把…翻转；倒置:_________________＝_________________.____________________,科学方法：_________________,两张纸：___________________.同学们,你们都自学到了吗?即使用到辅助工具也是可以的噢!2、情景导入：①What’satheory?______________________②What’sanexperimentfor?_____________________________3、Brian,JennyandDannywanttomakeanexperiment,Brian_____aboutthisexperimentatfirst.He____ajar_______water,________thetopwithapieceofcardboard.Then,he_______thejar_____________.Whatwillhappen?Dannyisn’tsure.Hethinkthefloorwill______wet.SoheadvicesBriandothisexperiment_________.ButBrianis_______thefloorwon’t____________.Whoisright?Wecan_______who’sright.Let’sdotheexperimentand__________whatwillhappen.4、再读课文找出问答。①WhatdidBriandoabouttheexperimentatfirst?______________________②WhydoesDannywanttodotheexperimentoutside?_____________________________③DoesDannyhavethesametheoryasBrian’s?Whoisright?____________________________________④Doyouthinkthecardboardcanholdthewaterinjar?Why?___________________________________.5、要点解析：①fill,意为________,fill…with…表示__________,另，befilledwith=________________,意为_________.Fillin意为：________.Eg:Theboxisfilledwithbooks.=Theboxisfullofbooks.Sheisverysad,hereyes____________tears.=Sheisverysad,hereyes____________tears.=Sheisverysad,hereyes________tears.___________theblanks.（填写空白处。）Theground_____________________snow.②Sb.besure+that从句，意为“认为…一定….,”否定形式为：_______________+________引导的从句。另，_________________是“一定做某事”的意思。Eg:Tom______________hewillwinthegame.否：Tom_____________whetherhecanwinthegame.Wearesure__________(win)thegame.我不能确定他什么时候来这儿。__________________________________________________.③prove,动词，意为________,常用于_________________,__________________,_______________________结构。Thefacthas_______theman’shonesty(诚实n.)tousall.=Thefacthasproved____________thatthemanishonest.=Thefacthasprovedtheman_________honest.④observe,动词，意为_________,常用形式为：__________________.四、学习质疑在你预习的过程中，有什么疑难问题吗？请写在这里。五、当堂检测完成《课时作业本》Lesson25
