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1、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, every morning,often, sometimes, twice a week, seldom, once a month, on Sundays e.g. I leave home for school at 7:00 every morning. I get up at six in the morning.,一般现在时,2.表示客观事实和普遍真理。 e.g The earth mov
2、es around the sun. Shanghai lies in the east of China. 3表示格言或警句中。 e.g Pride goes before a fall. 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：Columbus proved that the earth is round,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
3、他 否定句 主语+dont+动词原形+其他 一般疑问句 Do+主语+动词原形+其他 例 1) We usually go to school at 7:30. 我们通常7:30上学去。go 2) My parents give ten yuan to my sister every week. 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+doesnt+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+do
4、esnt 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： workworks 工作 readreads 读 looklooks 看 comecomes 来livelives 居住 listenlistens 听 (2) 以s, x, z, sh, ch 以及o结尾的动词，后 加es： guessguesses 猜 mixmixes 混和 gogoes 去 finishfinishes 完成 catchcatches 抓住,(3) 以辅音字母加 y 结尾的动词，应将 y 改为 i 再
5、加 -es： flyflies 飞行 studystudies 学习 carrycarries 带，扛 有个别的变化不规则，如havehas, beis 等。,EX2 1.Tom often_( get ) up at six in the morning 2. The earth _( go) around the sun . 3.Marys parent _(live ) in Beijing . 4. She _ (draw) very well.,looks; goes; gives; flies; has,gets,goes,lives,draws,II 一般现在时的否定式,1.Be
6、 动词的否定式: be + not,I am a teacher. You are a worker She is a doctor We are friends.,Im not a teacher You arent a worker She isnt a doctor. We arent friends.,is not=isnt are not=arent,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. I am not at college. Mr. Wang isnt 50 years old. You may not go now.
7、,2.谓语动词是实义动词，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 lunch at home. They dont play basketball on the playground. Mr.Jimmy doesnt know French.,Ex1. 将下列各句从肯定式改为否定式,I talk to Peter because I like him Kate comes from America. Kate works with Peter I am Chinese, and I am a student. They know each
8、 other.,I dont talk to Peter because I dont like him.,Kate doesnt come from America.Kate doesnt work with Peter.,I am not Chinese, and I am not a student,They dont know each other.,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。 Are you students？ Yes, we are. / No, we arent. Is Jane in the classroom? Yes
9、, she is. / No, she isnt. Is there any water in the glass? Yes, there is. / No, there isnt. Can you swim? Yes, I can. / No, I cant.,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。 Do you know it？ Yes, I do. / No, I dont. Does she have a pen？ Yes, she does. / No, she doe
10、snt.have 这里是实义动词 Do they play basketball after school? Yes, they do. / No, they dont.,Ex1.请做练习,1.Her parents live in Shanghai . 否: Her parents_ in Shanghai. 疑： _ her parents_ in Shanghai?. 2.You study English . 否： You study English . 疑： you study English ? 3. How often Tom football? A.is ,play B. do
11、,play C. does, play D.does,plays,dont live,Do,live,dont,Do,C,请把下列句子变成否定句和疑问句。,The sun rises in the east. 2.Tom gets up at six in the morning.,The sun doesnt rise in the east. Does the sun rise in the east?,Tom doesnt get up at six in the morning. Does Tom get up at six in the morning?,3. They live i
12、n Shanhai. 4. I am a student.,They dont live in Shanhai. Do they live in Shanghai?,I am not a student. Are you a student?,用所给动词的正确形式填空： 1.We often _(play) in the playground. 2.She often _(watch) TV with her dog. 3.The earth _(go) around the sun. 4.My mother _look) after my little sister at home. 5.
13、Lucy _(have) some friends here. 6.Fang Ming _(not like )rice at all. 7.We_(go)to school at 7:30 in the morning . 8.Mary seldom _ (come) here. 9.Her uncle often _ (drive) to Beijing. 10.Tom _ (want) _ ( work) in Hainan.,play,watches,looks,doesnt like,has,go,comes,wants,drives,to work,goes,1._ you hav
14、e a book ? A Do B. Are C. Is D. Have 2.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 homework in the afternoon. A. doing B. to do C. does D. do 4.How _ Mr. Smith _ to England? A. do, go B. is , go C. does, go D. does , goes
15、,5. _ she _ home at six every day? A. Is , leave B. Does , leave C. Is , leaves D. Does , left 6.I want_homework now. A .doing B. to do C.to do my D.do my 7.Its time_. A.go to school B.play games C.to go home D.to do my homeworks,8- _you _the blackboard? -Yes,I can. A.Can, clean B.Am, cleaning C.Are, cleaning D.Do, clean 9_go and help her. A.Lets me B.Lets us C.Lets D.Lets to,10.Do they have a new car? Yes,_. A.they are B
