一般现在时 (2).ppt

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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 请把下列句子变成否定句和疑问句 Thesunrisesintheeast 2 Tomgetsupatsixinthemorning Thesundoesn triseintheeast Doesthesunriseintheeast Tomdoesn tgetupatsixinthemorning DoesTomgetupatsixinthemorning 3 TheyliveinShanhai 4 Iamastudent Theydon tliveinShanhai DotheyliveinShanghai Iamnotastudent Areyouastudent 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 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 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 8 you theblackboard Yes Ican A Can cleanB Am cleaningC Are cleaningD Do clean9 goandhelpher A Let smeB Let susC Let sD Let sto 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 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 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 6