般现在时一. 含义：一般现在时表示经常、反复发生的动作或存在的状态.2. 用法：1 )表示经常、反复发生的动作，现存的习惯或状态I am a teacher. We are Chin ese.2) 表示客观事实或普遍真理例如：There are seve n days in a week. The earth goes round the sun.3) 表示安排或计戈収子的未来的动作，只限于 go, come, leave, start, stay, return, arrive, begi n, be 等动词例如：My train leaves at 6:30 this mornin g.-How long do you stay here?4) 表示主语的特征、性格、能力等Tom studies very hard. She is always ready to help others.二、 .时间状语一般现在时常禾口 always, ofte n, usually, every day/m on th/year,o nee a week, on Sun dayssometimes等表示时间的状语连用.二.构成及变化1. be动词的变化。
肯定句：主语 +be(am,is,are)+ 其它如： I am a boy. 我是一个男孩否定句：主语 + be + not + 其它如： He is not a worker. 他不是工人一般疑问句： Be +主语+其它如：-Are you a stude nt? 肯定回答：-Y es. I am. / 否定回答： No, I'm not.特殊疑问句：疑问词 + 一般疑问句如： Where is my bike?2. 行为动词的变化1) 、行为动词在一般现在时中的用法：一般人称的谓语动词用原形 .，但单数第三人称做主语时谓语动词词尾发生变化：即 .动词词尾加-s ；或.-es ,动词遇到单数第三人称时的表示方法在一般现在时中，当主语是单数第三人称时 ，行为动词的形式是在词尾加 -s或-es具体方法如下：(1) 多数动词直接加 s:runs gets likes collets takes plays elimbs ?? .(2) 结尾是s, x, sh, eh, o, 前为辅音字母，结尾力口 es : watches teaches— goes does washes crosses — mixes brushes⑶ 动词末尾 y前为辅音:将y改为i加es: study —studies fly Ties#carry f carries cry f cries但在y前如果为元音则直接加 s: buys says注意:动词加-s以后的读音1.在 [p] [t] [k] [f]等清辅音后，发清辅音 /s/ eg. helps , works, likes,hates ,laughs2.在浊辅音和兀音后，发浊辅音/z/eg. drives, clea ns, plays3.在 [s] [z][/] [ 后,发 /iz/eg.rises, wishes, teaches, urges4.在[t] [d]后，发 /ts//dz/eg.fits, sets, n eeds5. 其他情况下发 [z] eg. plans, cries, shows2、.否定形式：主语是第三人称单数，在行为动词前加 doesn '.行为动词变为原形。
其余人称作主语时，都在行为动词前加 don ' tHe likes reading books. 变否定句 He doesn 'like reading books.I like playing football. 变否定句 I don 't like playing football.3、.一般疑问句：主语是第三人称单数的，将助动词does提前，行为动词变为原形其余人称作主语，将助动词 do提前，句号变问号 主语I ,we变you ; some 变any .1).He likes read ing books.变一般疑问句： Does he like read ing books?肯定回答：Yes, he does. 否定回答：No, he does n '.2).I like playing football.变一般疑问句:Do you like playi ng football?#3).We like nice flowers.肯定回答：Yes, I do.否定回答：No, I don '.变一般疑问句： Do you like nice flowers?肯定回答：Yes, we do.否定回答：No, we don '.般现在时的四个基本句型总结谓语动词是do谓语动词是be主语是：第三人称单数主语是：非第三人称单数肯定句否定句一般疑问 句am/ is/ areHe is a teacher.He is not ateacher.Is he a teacher?doesHe goes to school every day.He doesn '_ go t school every day.Does he go to school every day?doThey go to school every day.They don—'_ oto school everyday.Do they go to school every day?特殊疑问 句Yes, he is. No, he isn^ t.What is he?snYes, he does.No, he doesn 't.What does he-do every day?Yes, they do.No, they don ' t._What do they do every day?一般现在时：表示经常性的事情。
1、时间状语：often经常,usually通常,always总是，every每个,sometimes有时，at ?在几 点钟注意：只有第三人称单数用动词三单 ，其余动词均用原形三单变化：1) 、多数在动词后加 s : play — plays like — likes2) 、以 s，x， sh， ch，o 结尾的动词力口 es : go — goes wash-washes3) 、以辅音字母加y结尾，把y改i再加es : fly — flies练一练1. We often (play) in the playgro und.2. He (get) up at six o ' clock.3. you (brush) your teeth every morning.4. What (do) he usually (do) after school?5. Danny (study) English, Chinese, math, Scienee and Art at school.6. Mike sometimes (go) to the park with his sister.7. At eight at night, she (watch) TV with his parents.8. Mike (read) En glish every day?9. How many less ons your classmate (have) on Mon day?10. What time his mother (do) the housework?改句子1. Do you often play football after school?( 肯定回答)2.1 have many books.(改为否定句)3. Gao Shan ' s sister likes playing table tennis (改为否定句)4.She lives in a small tow n near New York. (改为一般疑问句)5.1 watch TV every day.(改为一般疑问句)6. David has a goal.(改为一般疑问句)7. We have four less ons (.否定句)8. Nancy doesn ' t run fast (肯定句)9. My dog runs fast.(否定句，一般疑问句)10. Mike has two letters for him. 一般疑问句，否定句:11」usually play football o n Friday after noon. 否定句，一般疑问句12.Su Yang usually washes some clothes on Saturday.否定句:一般疑问句：划线提问：13. Su Yang usually washes some clothes on Saturday 戈U.（线提问）14. Mingming usually waters the flowers every day否定句:一般疑问句：划线提问15. Tom does his homework at home.否定句:一般疑问句：划线提问：Mr. BlackMr. Black teaches （ 教授）us English this term（ 学期）.He is a tall man. He likes wearing a white shirt and black trousers. He speaks En glish very well. We like his less ons（ 功课）very much.His home is n ear the school. Sometimes Mr. Black walks to his home. He has two little sons. They look the same. They ofte n wear the same clothes（ 衣服 ）. He loves to see them and play with them. Mr. Black calls（称呼）the two boys Da Mao and Xiao Mao.Tick or cross（）21. Mr. Black is our En glish teacher.（）22. Mr. Black is very short.（）23. We don ' t like his lessons.（）24. Maybe Da Mao and Xiao Mao are twin brothers.（ ）25. Mr. Black can speak Chinese well.An swer:26. Do the pupils like Mr. Black ' s less ons? 27. What does Black like to wear? 28. Is Mr. Black ' s home far from the school? 29. Does Mr. Blac。