七年级英语一般现在时.ppt

七年级英语一般现在时1.肯定句肯定句2.否定句否定句3.一般疑一般疑问句及肯定与否定回答句及肯定与否定回答4.特殊疑特殊疑问句句注意注意:第三人称第三人称单数的用法。数的用法。语法要点:一般现在时一般现在时(一般现在时用法一般现在时用法)I have long hair.My hair is long.Simon plays football after school.things that we do regularly.经常做的事经常做的事Cats eat fish.things that are always true.客观存在的事实客观存在的事实things that are true now.目前存在的事实目前存在的事实一一.当我们谈论以下几种情况时当我们谈论以下几种情况时,用一用一般现在时：般现在时：1.表示现在存在的状态表示现在存在的状态;2.表示经常性、习惯性的动作表示经常性、习惯性的动作;3.表示客观事实或普遍真理。表示客观事实或普遍真理。句中常用句中常用always,usually,often,sometimes,seldom,never,every day，in the morning等等时间状语。时间状语。一般现在时的构成：一般现在时的构成：My name is Amy.He is ten years old.-be动词的一般现在时。I often play football after school.He watches TV every day.-行为动词的一般现在时动词的种类行为动词的一般现在时的构成：（看例句并总结规律，行为动词的一般现在时的构成：（看例句并总结规律，注意观察红色和蓝色字体。）注意观察红色和蓝色字体。）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.总结规律：总结规律：当主语是第一、第二人称和第三人称复数时，行为动当主语是第一、第二人称和第三人称复数时，行为动词使用其原形。当主语是第三人称单数时，行为动词词使用其原形。当主语是第三人称单数时，行为动词使用其第三人称单数形式。使用其第三人称单数形式。行为动词一般现在时的第三人称单数形式行为动词一般现在时的第三人称单数形式Most verbs +swalkliveVerbs ending in a consonant+y -y+iesflystudyVerbs ending in ss,ch,sh x,or o +esmisswatchfinishFixdogoHow to add“s”“es”to the verbs7walkslivesfliesstudiesmisseswatchesfinishesfixesdoesgoes 写出下列行为动词的第三人称单数形式：1.like-2.swim 3.work4.catch 5.go-6.study7.worry 8.have-9.do-likesswims workscatches goesstudiesworries hasdoes1.I _(go)swimming on Sunday.2.My cousin_(enjoy)computer games.3.My parents_(watch)TV.4.Tom and Simon _(like)fish.5.He _(swim)every day.6.Tom_(play)football every day.gowatchlikeswimsplaysenjoys用所给词的适当形式填空7.I often _ football at weekends.(play)8.Simons father often _ football games on TV.(watch)9.Millie _ books at home.(read)10.Kittys parents often _ shopping on Saturdays.(go)11.Amy with her father _ swimming on weekends.(go)12.Sandy _ English in her free time.(study)13.Amy and Simon _ to play football in the next World Cup.(want)14.We _ listening to music.(like)playwatchesreadsgogoesstudieswantlike行为动词一般现在时的否定句和一般疑问句。1、I speak English.否定句：I do not/dont speak English.一般疑问句：Do you speak English肯定回答：Yes,I do.否定回答：No,I dont.2、He speaks English.否定句：He does not/doesnt speak English.一般疑问句：Does he speak English肯定回答：Yes,he does.否定回答：No,he doesnt.(注意蓝色和红色字体，总结规律。行为动词一般现在时的否定句和一般疑问句行为动词一般现在时的否定句和一般疑问句构成：构成：否定句：否定句：在行为动词前加在行为动词前加do not或或does not,当主语是第三人称单数时，助动词用当主语是第三人称单数时，助动词用doesnt.在非正式行文中，在非正式行文中，do not和和does not可以缩可以缩写成写成dont 和和doesnt.一般疑问句：一般疑问句：在句首加助动词在句首加助动词Do和和Does,当当主语是第三人称单数时，助动词用主语是第三人称单数时，助动词用Does.注意：在疑问句和否定句中，注意：在疑问句和否定句中，助动词之后助动词之后的行为动词均用原形。的行为动词均用原形。改错题：改错题：1.I goes to school at six every day.2.He dont like playing football.3.I am watch TV every day.4.Daming watchs TV in the evening.5.Does he usually has a party6.Our English doesnt likes music.7.Tony goes always to school at eight oclock.8.Does your parents like watching TV9.Lily haves lunch at school.10.My sister doesnt her homework every._ _godoesnt去掉amwatcheshavelikealways goes_dohasdoesnt do注意：我们用一般现在时进行表达时，注意：我们用一般现在时进行表达时，不能同时使用不能同时使用be动词和行为动词动词和行为动词行行为动词一般一般现在在时的构成：（小的构成：（小结）肯定句：肯定句：当主当主语是第三人称是第三人称单数数时，行，行为动词用用 。主主语是非第三人称是非第三人称单数，行数，行为动词用用 。否定句：否定句：在行在行为动词前加前加 ,当主当主语是第三人称是第三人称单数数时，助，助动词用用注意注意:do not=dont,does not=doesnt .一般疑一般疑问句：句：在句首加助在句首加助动词 ,当主当主语是第三人称是第三人称单数数时，助，助动词用用 .注意：在疑注意：在疑问句和否定句中，句和否定句中，助助动词之后之后的行的行为动词均用均用 。三单形式三单形式原形原形do not或或does notdoesntDo和和DoesDoes原形原形动词的种类：1、行为动词：含有实在的意义，表示动作或状态，在 句中能做谓语。例句：I often play football after school.He watches TV every day.I listen to the radio every day She has a sister.We like playing football.2、连系动词 例句：He is ten years old.I feel happy.3、助动词 例句：Do you have a sister He doesnt speak English.4、情态动词 例句：We must go now.She can speak English.教学资料资料仅供参考