一般现在时讲解及练习1. 一般现在时：1. 表示事物或人物的特征、状态。
如：The sky is blue. 天空是蓝色的。
2. 表示经常性或习惯性的动作。
如：I get up at six every day. 我每天六点起床。
3. 表示客观现实。
如：The earth goes around the sun. 地球绕着太阳转。
2. 构成：1. be 动词：主语+be(am,is,are)+ 其它。
如：I am a boy.我是一个男孩。
2. 行为动词：主语+行为动词(+其它)。
如：We study En glish. 我们学习英语。
当主语为第三人称单数(he, she,it) 时，要在动词后加"-s"或"-es"。
如：Mary likes Chi nese. 玛丽喜欢汉语。
注意：一般现在时经常和频率副词连用。
3. 我的变化--否定句、一般疑问句、特殊疑问句：1. be动词的变化。
否定句：主语+ be + not + 其它。
女口：He is not a worker. 他不是工人。
一般疑问句：Be +主语+其它。
女口：-Are you a student?-Yes. I am. / No, I'm n ot.特殊疑问句：疑问词+—般疑问句。
如：Where is my bike?2. 行为动词的变化。
否定句：主语+ don 't( does n't ) + 动词原形(+其它)。
如：I don't like bread.当主语为第三人称单数时，要用does n't构成否定句。
如：He does n't ofte n play.一般疑问句：Do( Does ) +主语+动词原形+其它。
如：-Do you ofte n play football?-Yes, I do. / No, I don't.当主语为第三人称单数时，要用does构成一般疑问句。
如：-Does she go to work by bike?-Yes, she does. / No, she does n't.特殊疑问句：疑问词+—般疑问句。
如：How does your father go to work?动词第三人称单数形式构成规则动词原形变第三人称单数的规则与发音规律同名词单数变复数大致相同，请认真观察。
1、大多数动词在词尾加“ S”在清辅音后发音为[s]，在浊辅音及元音后发音为[z]。
如:①stop —stops [s] make —makes [s]②read —reads [z] play —plays [z]2、以辅音字母加“ y”结尾的，要先将“ y”变为“ i ”，然后在加“ es ”读[iz]女口：fly —flies [z] carry —carries [z]study —studies [z] worry —worries3、以“ s, x, ch, sh ”结尾的，在词尾加“ es”，发音为[iz]女口：teach —teaches [iz] watch —watches [iz]4、以“ o”结尾的动词，加“ es”，读[z]女口：go —goes [z] do —does [z下面几个动词变为单数时，原词的元音部分的发音发生了较大的变化，请注意记忆。
如:1）、do [du:] —does [dz] 2）、say [sei] —says [sez]以不发音字母“ e”结尾的开音节词，如果尾音是[s] , [z]时，加“ s”后字母“ e” 与所加“ s”一起读做[iz]。
女口：close —closes [iz]be动词包括：am is , are。
第三人称单数用is ;过去式为was;复数are，过去式为have，遇到主语是第三人称单数时，要用has ；动词be的第三人称单一般现在时练习题（一）写出下列动词的第三人称单数形式：5. ____________ The boy (chase) it.6. G ra ndma Wang _ (live) in Pudo ng.7. When _____ (do)he get up?8. Kitty ____ (watch)TV everyday.9. John can ' t ______ (find) his watch.(三) 选择题1. Jack and her mother ____ happy.A.doesB.areC.isD. have2. .Her mother _____ the bea nstalk.A.takeB.is take Ctakes D. tak ing3. The woman _____ the bea nstalk.A.cutB.cutt ingC.are cutD.cuts4. The goose ______ golde n eggs.yB.l aysC.l ayedD.l ayes5. Supergirl and Superdog _____ them.A.savesB.saveC.sav ingD.is sav ing6. Ben ____ a new bicycle.A.haveB.hasC.areD.were 发音,were.7. A man _____ in front of his car.A.walkB.walksC.walk ingD.work8. How ____ it feel?A.doesB.doC.areD.is9. -He came early this morning, did n't he?-Yes, he did. He often __ to school early.A. comeB. comesC. cameD. has come10. Ann ____ h er hair every week.A. is going to washB. washC. washesD. is wash ing11. They usually ____ TV in the eve ning.A. watchB. will watchC. are watchi ngD. watches12. The sun __ in the east and ___ in the west.A. raises; setB. rise; setsC. rises; setsD. rises; set13. -I usually have milk and bread for breakfast. What about you, Jim?-So do I, but my sister ___.A. has n'tB. does n'tC. did n'tD. won't14. She will go if it ___ tomorrow.A. is n't rainB. don't rainC. does n't rainD. did n't rain15. These little boys ___ playi ng football.A. are liki ngB. likeC. likesD. were lik ing16. - __ he ___ to work on foot? -Yes, he ___ .A. Do; go; doB. Does; go; doesC. Is; going; doesD. Does; go; is17. - _____ t hey ofte n ___these old men?-Yes, they __ .A. Do; help; areB.Are; help ing; areC. Do; help; doD. Are; helped; are（四）变否定句。
1. He wants a book.2. Jimmy washes hands before dinner.3. Lisa likes milk very much.4. They walk to school.5. Lin gli ng and Dandan are 10 years old.（五）变一般疑问句并作肯定和否定回答1. He wants a book.2. Jimmy washes hands before dinner.3. I am Chin ese.4. They walk to school.5. Lin gli ng and Dandan are 10 years old.（六）戈U线提冋。
1. He wants a book.2. Jimmy washes hands before dinner.3. Lisa likes milk very much.4. They walk to school on Monday.5. Lin gli ng and Dandan are 10 years old.希望的灯一旦熄灭，生活刹那间变成了一片黑暗。
一一普列姆昌德薄雾浓云愁永昼，瑞脑消金兽。
佳节又重阳，玉枕纱厨，半夜凉初透。
东篱把酒黄昏后，有暗香盈袖。
莫道不消魂，帘卷西风，人比黄花瘦。