人教版初中英语七年级上册第四单元《一般现在时》语法教学课件.pptx
一般现在时,主讲：代用名 时间：20XX.XX,人教版初中英语七年级上册第四单元,概念与用法,动词变化规则,随堂练习,课后总结,课后作业,目录CONTENTS,01,02,03,04,05,概念与用法,Part.one,句子的时态是指在不同时间里发生的动作或存在的状态，要用动词的不同形式表示出来。,1、这种时态的用法。2、这种时态的构成。,时态概念,注意两要点,概念与用法,01,I walk to school every day.,I listen to music every day.,看一看,概念与用法,01,My hair is long.,Tom plays football every day.,Cats eat fish.,一般现在时的用法,概念与用法,01,表示现在存在的状态,表示经常性，习惯性的动作,表示客观事实或普遍真理,一般现在时态经常与often，sometimes，always，usually等副词连用，也经常与every day,every week,every month,every term,every year,once a week，twice a year（一年两次）等时间状语连用。,She gets up early every morning.她每天早上早起。I go to see my grandmother every month.我每个月都去看我的奶奶。,注 意,概念与用法,01,For example,动词三单,一般现在时的构成结构,概念与用法,01,Be动词,动词原形,Be动词的一般现在时的构成,I am a good person.,概念与用法,01,You are a good person.,He/She is a good person.,肯定变否定，be后加not,否定句结构变化,概念与用法,I am not a good person.,You are not a good person.,He/She is not a good person.,一般疑问句结构变化,肯定句变一般疑问句，只需将be动词提前,概念与用法,01,Are you a good person?,Is she/he a good person.,行为动词的一般现在时是怎么构成的呢？,1、I play football every day.2、You play football every day.3、My friends play football every day.4、He plays football every day.5、Tom plays football every day.6、My brother plays football every day.,观察下列句子,概念与用法,01,当主语是第一人称、第二人称和复数时，谓语动词用原形；当主语第三人称单数的时候，谓语动词后面加s/es;,概念与用法,01,小结论,谓语动词的单复数要和主语人称和数保持一致。当主语是第三人称单数时，谓语动词要变成三单的形式（即在动词后面加s或者es）。当主语是其他人称时，谓语动词用原形。,动词规则,概念与用法,01,一般动词后加-s。,like-likesHe likes playing basketball.,以s、x、ch、sh结尾，后加es。,以辅音字母+y结尾的单词，变y为i，再加-es。,study-studiesHe studies English very hard.,以辅音字母加o结尾，一般加-es,概念与用法,01,第三人称单数变化规则,1,2,4,do-doesShe always does her homework on time.,3,watch-watchesMy father watches TV every night.,动词三单现在式，一般词尾加-s。s、x、ch、sh 连词尾，直接加上-es。词尾若是字母o，考虑是否加-es。辅音字母+y 来结尾，变y为i有道理，-es后面紧跟随，大家一定看仔细。,动词第三人称单数变化的歌诀,概念与用法,01,动词变化规则,Part.two,肯定句结构,1、I play football every day.2、My friends play football every day.3、He plays football every day.4、Tom plays football every day.,动词变化规则,02,否定句结构,“主语+dont/doesnt+动词原形+”：,1、I dont play football every day.2、My friends dont play football every day.3、He doesnt plays football every day.4、Tom doesnt plays football every day.,动词变化规则,02,1、Do you play football every day?2、Do your friends play football every day?3、Does he play football every day?4、Does Tom play football every day?,一般疑问结构,“Do/Does+主语+动词原形+?”：,动词变化规则,02,随堂练习,Part.three,一、用所给词的适当形式填空,1.The lion _(not,eat)grass.It likes _(eat)meat.2._ the snake _(like)fruits?3.My father _(go)to work at 8:00 every day.He _(not,go)to work on foot.4._ Jack _(have)four classes in the morning?Yes,he _(have)four.5._ you often _(listen)to music?No,I dont.I like _(play)table tennis.,doesnt,eating,Does,like,goes,doesnt go,Does,have,has,Do,listen,playing,We often read books after school.（用the girl做主语）The girl often _ books after school.Playing the piano is my favourite.(变为同义句)I _ the piano best.We have an English lesson today.(变否定句)We _ an English lesson today.We have science on Tuesday and Friday.(对划线部分提问)When_ you _ science?,二、句型转换,reads,like playing,dont have,do,have,课堂总结,Part.four,什么是时态呢？,一般现在时有几种用法呢？,时态的概念,一般现在时用法,动词变化规则,第三人称单数动词该怎么变呢？,课后作业,Part.five,改错题1.Our English doesnt likes music.2.Tony goes always to school at eight oclock.3.Does your parents like watching TV?4.Lily haves lunch at school.5.My sister doesnt her homework every.,谢谢聆听,主讲：代用名 时间：20XX.XX,人教版初中英语七年级上册第四单元,
