Unit4InventionsandInventorsRoundup4教学目标：1.知识目标：1）复习动词的一般现在时，一般过去时，一般将来时的被动语态及带有情态动词的被动语态的构成和用法。2）复习短语bemadeof和bemadefrom；beusedfor和beusedby在被动语态中的不同含义，要求学生口头和笔头掌握。2.能力目标：1）能口笔头对物体成份，功能，用途进行简单描述。2）能读懂常用物品的简单功能，成份和使用说明。3）能写出含有被动语态的句子和简单文段。3.文化意识：了解历史上中外的重大发明及发明者对中外文化发展的影响及作用。对比中文和英文在表达被动语态时的异同。4.学习策略：通过观察、理解、归纳，运用的过程发现语言规律，并利用语言规律解决实际问题，培养学生自主学习的能力。教学内容：1.话题：Inventions2.词汇：bemadeof,bemadefrom;beusedfor,beusedby.3.语法：复习一般现在时，一般过去时，一般将来时的被动语态及带有情态动词的被动语态的构成和用法。教学重点：复习被动语态的用法。教学用具：录音机，课件，多媒体教学步骤：I.LeadinStep1教师设置问题导入本课内容：T:InUnit4,wehavelearnedalotofinventions.Doyourememberthem?Whocantellussomeofthem？S:学生先说出学过的几个发明。T:Letmeshowyousomepictures.Step2教师在投影上打出一些图片，帮助学生回忆本单元的词汇，教师提示：T:Let’sreadthemtogetherS:学生集体朗读词汇。(fridge,microwaveoven,photocopier,gunpowder,kite,tea-drinking,wheelbarrow)(bulb,keyboard,plane,train,typewriter,)II.ReviewPassiveVoice:1．复习被动语态的结构和意义：Step1.复习含有被动语态的句子1)T:Matchthepictureswithcorrectsentences.Thefoodisheatedintheoven.PaperwasmadeinChinain105AD.Veryfewpeoplewillbekilledbyfuturecars.Milkshouldbekeptinthefridge.2)T:Checktheanswers:S:教师要求学生根据图片选择句子。Step2.教师要求学生再次朗读句子。Step3.教师要求学生观察句子，并归纳结构。T:Couldyoutellmethesamepartsofeachsentence?S;passivevoice:be+V.(pp)2．操作被动语态：Step1.复习有关家用电器的词汇：T:Almosteveryday，manypeopleusetheelectricalmachines,doyouknowthem?(展示投影)S:fridge,microwaveoven,photocopier,cameraStep2.用被动语态说出句子。T:Doyouknowwhattheyareusedfor?S:Afridgeisusedforstoringfood.Amicrowaveovenisusedforheatingfood.Aphotocopierisusedfordoingaphotocopierwork.Acameraisusedfortakingphotos.Step3.复习bemadeof/from.1.复习词汇.T:Whatarethesethings?Whataretheymadeof/from?S:watch,pencil,butter,paperS:Thewatchismadeofsteel.Thepencilismadeofwood.Butterismadefrommilk.Paperismadefromtrees.Step4.复习将来时的被动语态。T:你能设想一下将来我们使用什么日用品吗?(T:Canyouimaginewhatourlifewillbelikeinthefuture?)打出一些图片,给学生一些提示.(T:Canyoumakesentenceswiththewordsorphrasesaccordingtothepictures?)S:学生看图片说出：ARobotwillbeusedinourfamily.Flyingcarswillbeinventedinfiftyyears.Apersonalwebpagewillbeusedbyeveryone.Spaceshipswillbeusedfortravelingtootherplanets.Step5.复习含有情态动词的被动语态。T:平时生活中,你注意到这些标志了吗?他们都代表什么意思?（Haveyoueverseenthesesigns?What’smeaningofeachsign?）S:学生小组讨论T:每组检查两对1）Bicyclescannotbelefthere.2）Theflowersshouldbewatered.3）Allthepicturesmustn’tbetakenhere.4）Cigarettesmustn’tbesmokedhere.Step6.被动语态在实际生活中的运用。T:设计一个教室的场景，告诉学生明天有外国朋友来参观，有什么需要我们做？S：小组讨论后发言。III.Dosomeexercisesaboutpassivevoice:一.填空:(Fillinblanks)1.Nowadays,personalcomputers_____________(find)inmanyhomes.2.Wheelbarrows________first______(use)alongtimeago,duringHandynasty.3.TheWorldWideWeb_______________(develop)byTimBerners-Leein1990.4._____Thefirstumbrellas_____(make)inChina?5.Lastyear,theGreatWallofChina______________(visit)bymillionsoftourists.6.Today,Chinese_____________(speak)bymoreandmorepeoplearoundtheworld.7.Thegarden____________(not,water)onceaweek.8.When______paperfirst________(invent)?二.看图并描述:(Canyousaysomethingaboutthepictures?)1.Clotheswaswashedthismorning.2.Thisoldtypewriterisusedforwritingletters.3.Thesebottlesaremadeofglass.4.Thewindowswerebrokenlastnight.5.Somenewcarswillbemadeinthefactoryinafewdays.6.Yourbagcanbelefthere.Hewastakentothehospitalthismorning.7.Themedicineisusedbythedoctortotreatthepatient.V.Homeworkfortoday：1.ReviewUnit42.Copythesentencesonpage54intextbook.3.Doexercise2,3,4,6onpage55intextbook.板书设计：Unit4InventionsandInventorsRoundup4课后自评：
