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1、 Unit 5 It must belong to Carla.Section ASection A嘉祥疃里三中嘉祥疃里三中 张卫霞张卫霞Section ASection ASection ASection A嘉祥疃里三中嘉祥疃里三中 张卫霞张卫霞嘉祥疃里三中嘉祥疃里三中 张卫霞张卫霞嘉祥疃里三中嘉祥疃里三中 张卫霞张卫霞Section ASection AWhat is invention?An invention is a new thing that someone has made.Edison was a great inventor,he invented more than 1,
2、000 inventions in his life.Lets discussWhat would it be if there werent electricity in the world?19761971187619271885When was it invented?Listen and match the inventions with the dates.abceWhen was the telephone invented?I think it was invented in 1876.18761885192719711976 When was the car invented?
3、It was invented in 1885.英英语语中中的的动动词词有有两两种种语语态态：主主动动语语态态(The Active Voice)和和 被被 动动 语语 态态(The Passive Voice)。主主动动语语态态中中，主主语语是是谓谓语语动动作作的的执执行行者者，被被动动语语态态中中，主主语语是谓语动作的承受者。是谓语动作的承受者。被被动动语语态态的的构构成成：be+及及物物动动词词的的过过去去分词分词被动语态(The Passive Voice)The passive voice.被动语态被动语态被动语态的被动语态的构成构成:be动词动词+(及物及物动词的动词的)过去分词过
4、去分词 一般现在时一般现在时一般过去时一般过去时am (is,are)+donewas(were)+done主动句变被动句的方式：主动句变被动句的方式：主动句：主动句：主语主语+及物动词谓语及物动词谓语+宾语宾语被动句：被动句：主语主语+be+过去分词过去分词+by 宾语宾语Our teacher loves her students.Her students are loved by our teacher.被动语态(The Passive Voice)动词动词填空：填空：1.The TV _ (invent)around 1927.2.This kite _ (make)by Uncle
5、Wang.3.Tea _ (discover)a long time ago.4.Our classroom _ (should clean)every day.was inventedwas madewas discoveredshould be cleanedGuessing:What is it?Guessing:What is it?Microwave ovenIt is used for cooking and heating food(加热加热)What food can be heated in it?What is it used for?It is used for coun
6、ting.calculatorWhat are they used for?They are used for giving light.light bulbslight bulbsWhat is/are used for?Its/Theyre used foralarm clock Its an annoying invention.Because it wakes me up when Im sleeping.I think computer is the most helpful invention.Because it helpsme search the information th
7、at I need.A survey:What do you think is the most helpful/annoying inventions?Name Name HelpfulHelpfulinventionsinventionsWhy Why Annoying Annoying inventionsinventionswhywhyUseful expressions:A:What do you think is the most helpful/annoying invention?B:I think the most helpful invention isA:Why is t
8、hat?B:Well,it gives/helps people I think the most helpful invention is Id like to have abecause I could Its used for I also want abecause itExercises:句型转换句型转换 1.She was seen to come out of the library by him.（变为主动语态）（变为主动语态）He _ _ _ out of the library.2.When are trees often planted.（变为主动语态）（变为主动语态）W
9、hen _ people often _ _?3.The League was founded in Guangzhou in 1922.（就画线部分提问）（就画线部分提问）_ _ _ _ the League _?saw her comeplant treedoWhen and where wasfoundedExercises:句型转换句型转换 4.Did the students wear the school clothes a lot?（变为被动语态）（变为被动语态）_ the school clothes _ a lot?5.Kate took good care of the baby yesterday evening.（变为被动语态）（变为被动语态）The baby _ _ good care of _ Kate yesterday evening.was takenbyWereworn