TheSimplePresentTense一般现在时.doc

The Simple Present Tense一般现在时一什么时候用一般现在时？一般现在时用于表示现在的状态，如：He is twelve./She is at work./My father is a doctor.表示经常的或习惯性的动作，通常与副词always,usually,often,sometimes,seldom,three times a day, every day(week,month-)等表示频度的时间状语联用如：I get up at 6:30 every day.表示主语具备的性格和能力等，如：She likes noodles. / They speak French.表示客观事实或真理，如：The sun rises from the east and set in the west.二一般现在时的构成。1. be动词。 在一般现在时中be动词有三种形式:am, is, are. 其中am只用于主语是I的情况；主语是第三人称单数用is；其他人称用are。第一人称：指“我”、“我们”，即I，we。 第二人称：指“你”、“你们”，即you。第三人称：除第一、二人称外都是第三人称，名词都是第三人称。第三人称单数：包括代词he，she，it，可数名词单数和不可数名词做主语时都是第三人称单数做主语。第三人称复数：包括代词they，可数名词两个或两个以上为复数，不可数名词没有复数形式。如：I am a student.You are 11 years old.He is at work.She is a Japanese girl.It is fine today.They are from Korea.2.如果谓语动词不用be动词。那么，当句子的主语为第一人称、第二人称或第三人称复数时，在肯定句中，谓语动词用原形。如：I do my homework every day.We study Chinese, Math and English at school.You work in a supermarket，dont you?They go to school bu bus.The boys often play basketball on the playground.当主语为第三人称单数时，在肯定句中，谓语动词要用第三人称单数形式（简称三单形式）。如：Mr. Bush usually goes to work in his car. Our teacher wears a pair of glasses.Time flies fast.Mother likes apples.动词三单形式的变化规则有：1）直接加s：givegives,askasks, taketakes, getgets, writewrites 2） s, x, sh, ch, o结尾的, 加es：fixfixes , passpasses, watchwatches, washwashes, go goes3)以辅音字母+y结尾的，要把y变成i再加es：studystudies, carrycarries, worryworries4) 特殊变化：havehas3一般现在时的否定句，如句中有am, is, are，直接在后面加not；没有的，要在谓语动词前要加助动词dont或doesnt。主语为第一、第二人称和第三人称复数的，用dont；主语为第三人称单数的，用doesnt，但谓语动词要恢复原形。如：We are at home. We arent at home. The lady is from Canada. The lady is not from Canada.I want to go to the party. I dont want to go to the party.They have some cartoon books. They dont have any cartoon books.The bull runs faster than the lion. The bull doesnt run faster than the lion.Mike likes swimming and skating. Mike doesnt like swimming or skating. 4一般现在时的疑问句，如句中有am, is, are，把其提到主语前即可；没有am, is, are的，要在主语前加助动词do或does。第一、第二人称和第三人称复数作主语的，用do；第三人称单数作主语的，用does，谓语动词要恢复原形。注：一般现在时常用于if, when, as soon as, until,等词引导的时间，条件等状语从句中表示将来要发生的动作或状态，从句用一般现在时，即“主将从现”。如：We will go to the zoo if it is fine tomorrow.She will tell me the news as soon as she sees her friends.We wont see each other until the winter vocation comes.They will go to work at this school when they leave the college.练习：A.用括号中所给动词的适当形式完成句子。1.It is spring now. Jim often _(climb) the mountains with his brother.2.Jack often _(watch) TV after work these days.3.Mr. Black _(get up) at a quarter to seven every morning.4._you_(know) his telephone number?5.Usually my father_(catch) the No.11 bus_(go) to work, but sometimes he _(go) by taxi.6._(be) everyone here today?7.Sue and I_(be) good students.8.Mr. Brown_(look) very young.9.I_(not have) an English book.10.He _(go) to bed at nine in the evening.B.单项选择。( )1.Does Jim have a pear? Yes, he _.A. is B. have C. do D. does( )2.I dont _ breakfast, but my sister_.A. has; has B. have; doesnt C. has; have D. have; does( )3.Jack doesnt _pears, but Lily _ to eat them very much.A. likes; like B. like; likes C. like; like D. likes; likes( )4.What _she do? She is a teacher. She _ French.A. is; teach B. does; teach C. does; teaches D. do; teaches( )5.She _fishing with her sister every Sunday.A. is going B. shall go C. go D. goes( ) 6.Mrs Read _ the windows once a month.A. is cleaning B. clean C. cleaning D. cleans( ) 7. Tom is a worker, he _ in a factory.A . working B. works C. work D. is work( )8. We _ music and often _ to music.A. like ,listen B. likes, listens C. like ,are listening D. are like, are listening ( )9. Mr Green will write to me as soon as he _ to New York.A. will get B. get C. gets D. are get( )10.They will have a football match if it _ next Sunday.A. rain B. rains C. doesnt rains D. doesnt rain 改句子 1.Do you often play football after school? (肯定回答) 2.I have many books. （改为否定句） 3.Gao Shans sister likes playing table tennis （改为否定句）4.She lives in a small town near New York. （改为一般疑问句） 5.I watch TV every day. （改为一般疑问句） 6.David has got a goal. （改为一般疑问句）7.We have four lessons.（否定句）8.Nancy doesnt 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.I usually play football on Friday afternoon. 否定句: 一般疑问句: 划线提问12.Su Yang usually washes some clothes on Saturday. 否定句: 一般疑问句: 划线提问:13.Mingming usually waters the flowers every day 否定句: 一般疑问句: 划线提问14.Tom does his homework at home. 否定句: 一般疑问句: 划线提问用所给的人称改写句子1.I take photos on Sunday. ( Mike)2.We grow beautiful flowers. (she)3.They like collecting stamps. (Ben)4.I listen to music carefully. (my aunt)5.You like making a model ship. (Helen)6.We clean the classroom every day. (he)