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1、 初一时态讲解：一般现在时，现在进行时，一般将来时一般现在时1定义：表示通常性、规律性、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。2基本结构A.如果谓语动词是实义动词的结构 结构：肯定式:主语+动词原形/动词的第三人称单数否定式:主语+助动词 dont/doesnt +动词原形+其他疑问式:Do/Does+主语+动词原形+其他简略回答:(肯)Yes,主语+do/does (否)No,主语+do/does not 缩写形式: dont = do not doesnt =does not注意：have的第三人称单数为has 疑问句型谓语动词是实义动词，方法是在主语前加助动词do或
2、does构成，句中动词要改用原型动词。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。 Do you know it？Yes, I do. / No, I dont. Does she have a pen？Yes, she does. / No, she hasnt.have 这里是实义动词 Do they play basketball after school? Yes, they do. / No, they dont.否定句型谓语动词是实义动词，是在谓语动词前加do not 或does not，谓语动词改用动词原型。 I dont have luch
3、at home. Mr.Jimmy doesnt know French.They dont play basketball on the sports ground. 肯定式疑问式否定式否定疑问式I work.Do I work?I do not work.Do I not work?You work.Do you work?You do not work.Do you not work?We work.Do we work?We do not work.Do we not work?They work.Do they work?They do not work.Do they not wo
4、rk?He(She,It) works.Does he(she,it) work?He(She,It) does not work.Does he(she,it) not work?B如果谓语动词是be/情态动词的结构 结构:主语+be+其他 主语+情态动词+动词原形 1）be动词的第一人称单数为am，第三人称单数为is，其他人称为areBe动词顺口溜用法： 我用am ，你用 are ，is 用于他，她，它, 单数is，复数are.肯定式:主语+ am /is/are +其他否定式:主语+ am/is/are +not + 其他疑问式:Am /Is /Are + 主语+ 其他?简略回答: (肯
5、) Yes,主语 + am/ is /are (否) No,主语 + am /is/are not 缩写形式: Im = I am Thats =That is Were =We are Whats= What is Youre = You are Whos = Who is Theyre =They are Wheres =Where is Hes =He is Shes =She is Its = It is isnt=is not arent=are not 疑问句型1.对于谓语动词或助动词是 be、can/may 等，将这些词移到主语前面。 Are you students？Yes,
6、we are. / No, we arent. Is Jane in the classroom? Yes, he is. / No, he isnt. Is there any water in the glass? Yes, there is. / No, there isnt. Can you swim? Yes, I can. / No, I cant. 否定句型谓语动词或助动词是 be、can/may/ 等，在将助动词后加not. I am not at college. Mr. Wang isnt 50 years old. You may not go now. 2） 情态动词c
7、an/may的用法同be动词Eg: I can do my homework. She can see a picture.3. 动词的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。现在一般时动词变化的规则是： A 实义动词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，即仍然用动词原型表示： We usually go to school at 7:30. 我们通常7:30上学去。go My parents give ten yuan to my sister every week.我父母每星期给我妹妹十元钱。give 2.主语是任何一
8、个单数名词或者是第三人称单数，谓语动词要进行必要的变化。特别提一点：不可数名词也算作单数处理。 情况构成方法 读音例词一般情况加 -s 清辅音后读/s/ 浊辅音和元音后读/z/ swim-swims；help-helps；以s,sh,ch,x，o等结尾的词 加 -es 读/iz/ Passes, finishes, teaches, goes以辅音字母+y结尾的词变y 为i再加es 读/z/study-studies 实义动词单数变法规则：写出下列动词的第三人称单数：study play go come help teach lie listen begin open sit wash gue
9、ss cut run eat B 助动词 a. 基本助动词be (是) - am, is, are I 用am ；she/he/it, 名词单数都用 is ；we, you, they, 名词复数都用are b. 基本助动词 have (有) - have, has I, we, you, they, 名词复数都用have ；she/he/it is, 名词单数都用 has c. 基本助动词do-do does I, we, you, they, 名词复数都用do ；she/he/it is, 名词单数都用 doesd.情态助动词，不论单复数、不论什么人称都没有变化，都用 can, may 等
10、。而且，句子中有了助动词，谓语动词就不需要有任何变化了，即用动词原形表示。 Lucy is at home now. 露茜现在在家。 We have six classes every day. 我们每天上六节课。 Jack likes Chinese food very much. 杰克很喜欢中国饮食。 We can see some pictures on the wall. 我们能看到墙上的画。4 具体运用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。 一般现在时的时间状语有：usually,often（经常）, always（总是）, sometimes（有时）, on S
11、undays/Mondays ,today, every day ( week, month, year,) , this year, once a week ( month, year,) 一周（月，年）一次every morning/night/evening/day/week,from time to time,twice a week 注意：行为动词的一般现在时中涉及了频度副词，用法：常见的频度副词有：often ,always,usually,never,sometimes等用于行为动词之前，be/助、情态动词之后.e.g. I leave home for school at 7:
12、00 every morning.I dont usually get up at 6 oclock . He often goes to school by bike. 2.表示客观事实和普遍真理。 e.g Shanghai lies in the east of China. Two and two are four.二加二等于四。 The earth moves around the sun.地球绕着太阳转。4.表示主语现在具备的性格、能力、特征和状态。 e.g. He likes English very much. 他非常喜欢英语。She is a student. Tom can
13、speak English.一般现在时态专项练习一、 写出下列动词的第三人称单数形式posteatstopjumpgolikevisitpassrisereadridehavegivewriteswimstudywatchflyteachdo二单项选择1._ you have a book ? A Do B. Are C. Is D. Have2.Does Li Lei like to watch TV?_.A. Yes, he like. B. No, he doesnt .C. Yes, hed like. D. No, he likes.3.She doesnt _ her homewo
14、rk in the afternoon. A. doing B. to do C. does D. do4.How _ Mr. Smith _ to England? A. do, go B. is , go C. does, go D. does , goes5. _ she _ home at six every day?A. Is , leave B. Does , leave C. Is , leaves D. Does , left6.I want_homework now. (A)doing (B)to do (C)to do my (D)do my7.Its time_. (A)go to school (B)play games (C)to go home (D)to do my homeworks8_you _the blackboard? Yes,I can. (A)Can, clean
