七年级英语语法一般现在时ppt课件.ppt
一般现在时一般现在时动词：1.be动词动词(is,am,are)2.情态动词（情态动词（can,must,may,need,shall）3.行为动词（行为动词（run,speak,call,say.）、概念：、概念：1.一般一般现在在时可表示可表示现在的状在的状态。2.表示表示经常的或常的或习惯性的性的动作。作。3.表示主表示主语具具备的性格和能力。的性格和能力。1、肯定式、肯定式1)主语主语+be(am/is/are)+表语表语 I am a student.It/She/He is a teacher.You/They are classmates.2)主语主语+情态动词（情态动词（can,must,may,need,shall）I can speak English.She must go to school.、构成形式、构成形式:3).主语主语+行为动词（行为动词（speak，say，call，go,run.）1)I speak English.2)She/He speaks English.3)They call me Tom.4)He runs very fast.注意：在一般现在时态的肯定句中，当主语是第注意：在一般现在时态的肯定句中，当主语是第三人称单数（三人称单数（she,he,it），行为动词要加），行为动词要加-s或者或者-es2.一般现在时态的否定和疑问式(1)Be动词She is a student.变否定：She _a student.变一般疑问句：_ _a student?肯定否定回答：Yes,_./No,_.isntIsshesheissheisnt（2）.情态动词e.g.She can speak Chinese.变否定：She _Chinese.变一般疑问：_she _ Chinese?肯定否定回答：Yes,she _.No,she _.cantspeakCanspeakcancant(3)行为动词 e.g.I run very fast.变否定句：I _very fast.变一般疑问：_ you _very fast?肯定否定回答：Yes,I_./No,I _.e.g.She likes Maths.变否定句：She _Maths.变一般疑问：_ she _ Maths?肯定否定回答：Yes,she _.No,she _.dontrunDorundodontdoesntlikeDoeslikedoesdoesnt注意：在一般现在时态中，当谓语动词是行注意：在一般现在时态中，当谓语动词是行为动词的时候，变否定和一般疑问句时，要为动词的时候，变否定和一般疑问句时，要借助助动词借助助动词dodo和和doesdoes帮忙。当主语是第三人帮忙。当主语是第三人称单数称单数(she,he,it)(she,he,it)的时候用的时候用doesdoes，其他，其他人称用人称用dodo.借助助动词借助助动词dodo和和doesdoes以后，动词以后，动词要用动词原形。要用动词原形。、一般现在时态的用法：、表示目前或现在存在的状态或特征.e.g.Sheisoftenlate.、表示客观存在及普遍真理。e.g.Theearthisround.、表示现在经常和习惯性发生的动作，常与sometimes,often,usually,always,everyday等时间状语连用。、就单词的正确形式填空1.He _ (look)tired.2.The earth_ (go)round the sun.3._ (may)I have your pen?4.Practice _ (make)perfect.5.They usually_(come)to school earlier.6.Class_ (begin)at eight every morning.looksgoesMaymakescomebegins一、写出下列写出下列动词第三人称第三人称单数的数的变化化形式。形式。behavecomegostayteachwritetakestudywatchflyplayishascomesgoesstaysteacheswritestakesstudieswatchesfliesplays二、将下列句子变成否定式和一般疑问句1HernameisLiLing.2Wegotoschoolatnight.3Mybrotherworksinafactory.Her name _ Li Ling.Li Ling.Is her name Li Ling?Is her name Li Ling?We _to school at night.to school at night._ you _ to school at night?_ you _ to school at night?My brother _ in a radio factory.brother _ in a radio factory._ your brother _ in a radio factory?_ your brother _ in a radio factory?isntdontgoDogodoesntworkDoesworkShe can play basketball.She _basketball._ she _ basketball?cantplayCanplay三、单项选择1.TheBrowns_anicecarandBrownsbrother_anicejeep.A.have,haveB.has,hasC.have,hasD.has,have2.Iftheirhouse_notlikeours,what_itlooklike?A.is,isB.is,doesC.does,doesD.does,is3.Thelittlechild_notevenknowthatthemoon_aroundtheearth.A.do,moveB.do,movesC.does,movesD.did,moved Thank You Good bye!
