1、我们要告诉人们,是这个动作经常发生,是一般情况而不是具体某一次。二是事物存在状态。比如墙上挂着一张地图、他最近看上去很精神、小王是个男孩等等。这些都是一些长期存在状态。三是有些动作或状态是永恒,比如长江向东流、地球绕着太阳转,比如谚语中举事例、文学作品中描绘事例,像“好马不吃回头草”等等。这些动作已经无所谓过去、现在、将来了,所以都算作现在一般时内。2基本结构A如果谓语动词是实义动词结构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 no
2、t 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 work?He(She,It) works.Does he(she,it) work?He(She,It) does not work.Does he(she,it) not work?B如果谓语动词是助动词结构主语+助动词+动词原形+其他疑问句型1.对于谓语动词或助动词是 be、have、can/may/must 等,将这些词移到主语前面。 Are you students?Ye
3、s, we are. / No, we arent. Is Jane in the classroom? Yes, he is. / No, he isnDoes the house have two rooms? Yes,it does / No, it doesnIs there any water in the glass? Yes, there is. / No, there isnCan you swim? Yes, I can. / No, I can2.谓语动词是实义动词,方法是在主语前加助动词do或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
4、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 donDoes 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1.谓语动词或助动词是 be、have、can/may/must 等,在将助动词后加not. I am not at college. Mr. Wang isnt 50 years old. The Jacksons
5、 doesnt have two sons. You may not go now. 2.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 at home. They dont play basketball on the sports ground. Mr.Jimmy doesnt know French.3表达方法主要通过谓语动词变化和用时间词语来表示,其中最主要是谓语动词变化。现在一般时动词变化规则是: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 u
6、sually 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.主语是任何一个单数名词或者是第三人称单数,谓语动词要进行必要变化。特别提一点:不可数名词也算作单数处理。谓语动词是实义动词变化规律是: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;like- likes以s,sh,ch,x,o等结尾词 加 -es 读/iz/ Pass, finish, te
7、ach, finish, do以辅音字母+y结尾词变y 为i再加es 读/z/study-studies 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
8、动词,不论单复数、不论什么人称都没有变化,都用 can, may, must, need, ought to 等。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。请看下面例子: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. 我们能看到墙上画。4 具体运用1.表示经常或习惯性动作,常与表示频率时间状语连用。 时间状语: a
9、lways, usually,regularly,every morning/night/evening/day/week,often,sometimes,occasionally,from time to time,twice a week,rarely,seldom,once a month, hardly, ever,neve e.g. I leave home for school at 7:00 every morning. 2.表示发生或者存在于说话之时感觉,状态,和关系。时间焦点在说话时现在。这样动词有: know love have hear agree be think se
10、e taste feel seem look want belong require like等,这类动词特点都有延续性,用一般时态就能表示动作或者状态持续。e.g. I see some twinkling stars in the sky.3.表示客观事实和普遍真理。e.g The earth moves around the sun. Shanghai lies in the east of China. 4.表示主语具备性格、能力、特征和状态。e.g. I dont want so much. Ann Wang writes good English but does not spea
11、k well. 比较:Now I put the sugar in the cup. I am doing my homework now.5.表示格言或警句中。e.g Pride goes before a fall.骄者必败。6.在时间状语从句和条件状语从句中,常用一般现在时代替将来时。7.表示预先计划或安排好行为。8.小说故事用一般现在时代替一般过去时。新闻报道类内容,为了体现其“新鲜”性,也用一般现在时来表示过去发生事情。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:Columbus proved that the earth is round. 第
12、一句用一般现在时,用于操作演示或指导说明示范性动作,表示言行瞬间动作。再如:Now watch me, I switch on the current and stand back. 第二句中now是进行时标志,表示正在进行动作客观状况,所以后句用一般现在时。初中英语语法 一般现在时练习题1)用动词适当形式填空1.I like _ (swim). 2.He _(read) English every day.3.We _(go)to school at seven in the morning. 4.Mike_(go)to school at seven in the morning.5.My
13、 mother_(like) _(go) shopping. 6.I can _(draw) many beautiful pictures.7.She_(make) a model plane. 8.Do you _(like)_(run)?9.Does he_(like)_(jump) ?10.Does Nancy_(grow)flowers on Saturday ?11.The teachers_(like)_(dance). 12.The teacher_(like)_(dance).13.The students_(speak) English in class. 14.The student_(speak) Chinese after class. 15. Lets_and play football . ( go ) 16. He_ like swimming . ( not ) 17. Im sorry _that . ( hear ) 18. Wang Bing is_ ( writ
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