一般现在时.PPT课件

定义 一般现在时 表示通常性 习惯性的状态或者动作 有时间规律发生的事件 的一种时间状态 1 1 表示经常的或习惯性的动作 常与表示频率的时间状语连用 时间状语 always usually everymorning often sometimes twiceaweek seldom onceamonth onSundayse g Ileavehomeforschoolat7 00everymorning Igetupatsixinthemorning 一般现在时 2 2 表示客观事实和普遍真理 e gTheearthmovesaroundthesun ShanghailiesintheeastofChina 3表示格言或警句中 e gPridegoesbeforeafall 骄者必败 注意 此用法如果出现在宾语从句中 即使主句是过去时 从句谓语也要用一般现在时 例 Columbusprovedthattheearthisround 3 表达方法 主要通过谓语动词的变化和用时间词语来表示 其中最主要的是谓语动词的变化 一般现在时动词变化的规则是 4 1 如果主语是名词复数和第一人称I we 谓语动词不用做任何变化 即仍然用动词原形表示 肯定句主语 动词原形 其他否定句主语 don t 动词原形 其他一般疑问句Do 主语 动词原形 其他例1 Weusuallygotoschoolat7 30 我们通常7 30上学去 go 2 Myparentsgivetenyuantomysistereveryweek 我父母每星期给我妹妹十元钱 5 2 主语是单数名词 第三人称单数或不可数名词 谓语动词要进行必要的变化 肯定句 主语 动词的第三人称单数 其他否定句 主语 doesn t 动词原形 其他一般疑问句 Does 主语 动词原形 其他肯定回答 Yes 主语 does否定回答 No 主语 doesn t特殊疑问句 特殊疑问词 一般疑问句 6 行为动词do一般现在时第三人称单 he she it 的构成规则 动词变化规律 1 一般情况下由动词后加 s构成 work works工作read reads读look looks看come comes来live lives居住listen listens听 2 以s x z sh ch以及o结尾的动词 后加es guess guesses猜mix mixes混和go goes去finish finishes完成catch catches抓住 7 3 以辅音字母加y结尾的动词 应将y改为i再加 es fly flies飞行study studies学习carry carries带 扛 有个别的变化不规则 如have has be is等 8 EX21 Tomoften get upatsixinthemorning2 Theearth go aroundthesun 3 Mary sparent live inBeijing 4 She draw verywell looks goes gives flies has gets goes lives draws 9 II一般现在时的否定式 1 Be动词的否定式 be not Iamateacher YouareaworkerSheisadoctorWearefriends I mnotateacherYouaren taworkerSheisn tadoctor Wearen tfriends isnot isn tarenot aren t 否定句 10 否定句型 1 谓语动词是be或情态动词can may must等 在助动词后加not Iamnotatcollege Mr Wangisn t50yearsold Youmaynotgonow 11 2 谓语动词是实义动词 在谓语动词前加donot或doesnot 谓语动词改用动词原型 Idon thavelunchathome Theydon tplaybasketballontheplayground Mr Jimmydoesn tknowFrench 12 Ex1 将下列各句从肯定式改为否定式 ItalktoPeterbecauseIlikehim KatecomesfromAmerica KateworkswithPeterIamChinese andIamastudent Theyknoweachother Idon ttalktoPeterbecauseIdon tlikehim Katedoesn tcomefromAmerica Katedoesn tworkwithPeter IamnotChinese andIamnotastudent Theydon tknoweachother 13 疑问句型 1 谓语动词是be can may must等 将这些词移到主语前面 Areyoustudents Yes weare No wearen t IsJaneintheclassroom Yes sheis No sheisn t Isthereanywaterintheglass Yes thereis No thereisn t Canyouswim Yes Ican No Ican t 14 2 谓语动词是实义动词 在主语前加助动词do或does 谓语动词改成动词原形 do用于第一人称和名词复数 does用于第三人称单数和名词单数或不可数名词 Doyouknowit Yes Ido No Idon t Doesshehaveapen Yes shedoes No shedoesn t have这里是实义动词 Dotheyplaybasketballafterschool Yes theydo No theydon t 15 Ex1 请做练习 1 HerparentsliveinShanghai 否 Herparents inShanghai 疑 herparents inShanghai 2 YoustudyEnglish 否 YoustudyEnglish 疑 youstudyEnglish 3 HowoftenTomfootball A is playB do playC does playD does plays don tlive Do live don t Do C 16 请把下列句子变成否定句和疑问句 Thesunrisesintheeast 2 Tomgetsupatsixinthemorning Thesundoesn triseintheeast Doesthesunriseintheeast Tomdoesn tgetupatsixinthemorning DoesTomgetupatsixinthemorning 17 3 TheyliveinShanhai 4 Iamastudent Theydon tliveinShanhai DotheyliveinShanghai Iamnotastudent Areyouastudent 18 用所给动词的正确形式填空 1 Weoften play intheplayground 2 Sheoften watch TVwithherdog 3 Theearth go aroundthesun 4 Mymother look aftermylittlesisterathome 5 Lucy have somefriendshere 6 FangMing notlike riceatall 7 We go toschoolat7 30inthemorning 8 Maryseldom come here 9 Heruncleoften drive toBeijing 10 Tom want work inHainan play watches looks doesn tlike has go comes wants drives towork goes 19 1 youhaveabook ADoB AreC IsD Have2 DoesLiLeiliketowatchTV A Yes helike B No hedoesn t C Yes he dlike D No helikes 3 Shedoesn t herhomeworkintheafternoon A doingB todoC doesD do4 How Mr Smith toEngland A do goB is goC does goD does goes 20 5 she homeatsixeveryday A Is leaveB Does leaveC Is leavesD Does left6 Iwant homeworknow A doingB todoC todomyD domy7 It stime A gotoschoolB playgamesC togohomeD todomyhomeworks 21 8 you theblackboard Yes Ican A Can cleanB Am cleaningC Are cleaningD Do clean9 goandhelpher A Let smeB Let susC Let sD Let sto 22 10 Dotheyhaveanewcar Yes A theyareB theyhaveC theydon tD theydo11 Heoften supperat6 00intheevening A haveB hasC ishavingD iseating12 It s6o clockinthemorning It stime A getupB getsupC togetupD getsup 23 13 ThestudentswillgototheSummerPalaceifit tomorrow A don trainB doesn trainC won trainD isn train14 There anEnglishfilmnextweek A willhaveB isgoingtohaveC isgoingtobeD wasgoingtobe15 Thepicture nice A looksB islookedC lookD islooking 24 Weoften play intheplaygound 2 He get upatsixo clock 3 you brush yourteetheverymorning 4 What do heusually do afterschool 5 Danny study English Chinese Maths ScienceandArtanschool plays gets brush Do do does studies 25 6