一般现在时语法

一般现在时一、 一般现在时的定义:表示现在经常性、习惯性、规律性的动作或者现在存在的状态的一种时态。二、一般现在时的用法分类例句1）表示现在经常性、习惯性、规律性的动作I get up at six oclock every day.I go to school at 7:00 every morning.I often go to school by bike.2）表示主语现在的特征或状态I am a teacher. /You are a student./He is a policeman./She is a doctor. /I am happy. /We are family./Mary is 12 years old.3）表示一般性事实、客观真理或格言The earth moves around the sun.Light travels faster than soundThe sun is bigger than the earth.Failure is the mother of success.Practise makes perfect.4) 表示按规定或时间表预计将要发生的动作We are going to Shanghai, and our plane takes off at 8:00.5) 当主句为一般将来时态时，在if, as soon as, until, when等引导的状语从句中用一般现在时代替一般将来时。（主将从现）If it doesnt rain this afternoon, well have a football match.We will start as soon as you are ready.当一般现在时表示现在经常性、习惯性的动作时常连用的时间状语：1）表示频度的副词：always, often, usually, sometimes2）on Sundays, on Monday afternoons, every day/week/month/year等时间状语3）once a year, twice a month, three times a week 等表示频度的词组三、一般现在时的构成1) 谓语动词为be (am ,is ,are) （主语+be+其他） I am a teacher. You are a student. He/She is a doctor. 2） 谓语动词为实义动词 （主语+do/does+其他）I like English. (Chinese,Math,Science,History,Geography,Physics,Chemistry,Sociology)Mike likes English. (Chinese,Math,Science,History,Geography,Physics,Chemistry,Sociology)Mike speaks good English.I go to school on foot (by school bus,by bus,by bike).Lily goes to school on foot (by school bus,by bus,by bike).Tony often watches TV in the evening.Jack always washes in cold water.Mike studies English,Chinese,Math at school.Sona has musical talent. 四、 动词第三人称单数变化规则第三人称单数：he/she/it; 可数名词单数；不可数名词. （口诀:不是你不是我，并且只有一个）规则动词原形动词第三人称单数形式例句一般情况加 -slikeenjoylikesenjoysLisa likes walking down the street and enjoys the sunshine.以 _s,_x,_ch,_sh,_o_ 结尾的动词后加 -es passwashwatchfixgopasseswasheswatchesfixesgoesHe always washes in cold water.Tony often watches TV in the evening.Lily goes to school on foot every day.以辅音字母加y结尾的动词，去y加-iesstudycrystudiescriesShe studies Chinese for leaning more culture of China.Mike studies English,Chinese,Math at school.Dont take any notice for Nina,she always cries for nothing.特殊形式havehasSona has musical talent.五、 句型转换1、 谓语动词为be动词否定：主语+be+not+其他一般疑问句：be+主语+其他 （即将be提到句首）含be动词的一般现在时肯定句（我用am，你用are，is连着他她它,单数is复数are，不可数用is）He is 12 years old.否定句（be后加not）He is not 12 years old.一般疑问句（be提至句首）Is he 12 years old?回答Yes, he is./ No, he isnt.2、谓语动词为实义动词肯定：主语+do/does+其他否定：主语+助动词do/does+not+动词原形+其他疑问：Do/Does+主语+其他回答：肯定：Yes,主语+do/does. 否定：No,主语+do/does+not.行为动词（主语为非第三人称单数）肯定句I like Jiaxin.否定句：动词前加助动词dontI dont like Jiaxin.一般疑问句：句首加助动词DoDo you like Jiaxin?回答Yes, I do./No, I dont.行为动词（主语为第三人称单数）肯定句Mike likes Jiaxin.否定句：动词前加助动词doesnt, 有助动动还原Mike doesnt like Jiaxin.一般疑问句：句首加助动词DoesDoes Mike like Jiaxin?回答Yes, he does./No, he doesnt.注意：dont 和doesnt 之后动词一定要用原形。课堂练习:一.句型转换：1. Lucy likes going skating with her friends. 否定句：_Lucy doesnt like going skating with her friends.一般疑问句：_Does Lucy like going skating with her friends ?2. His watch costs 300 yuan. （变成一般疑问句并否定回答）_Does his watch cost 300 yuan ?No,it doesnt.二、用所给动词的适当形式填空。1. Weoften_(play)football intheplayground.2. He_(get)upatsixoclock.3. _you_(brush)yourteetheverymorning.4. What (do)heusually (do)afterschool?5. Danny_(study)English,Chinese,Maths,ScienceandArtatschool.6. Mikesometimes_(go)totheparkwithhissister.7. Tom_(study)English,Chinese,Maths,ScienceandArtatschool.8. _Mike_(read)Englisheveryday?9. Howmanylessons_yourclassmate_(have)onMonday?10.Whattime_hismother_(do)thehousework?11.Mike_(like)cooking.12.They_(have)thesamehobby.13.Myaunt_(look)afterherbabycarefully.14.Youalways_(do)yourhomeworkwell.15.I_(be)ill.Imstayinginbed.16.She_(go)toschoolfromMondaytoFriday.17.LiuTao_(do)notlikePE.18.Thechildoften_(watch)TVintheevening.19.SuHaiandSuYang_(have)eightlessonsthisterm.20.Whatday_(be)ittoday?ItsSaturday.21.Heoften_(have)dinnerathome.22.DanielandTommy_(be)inClassOne.23.We_(notwatch)TVonMonday.24.Nick_(notgo)tothezooonSunday.25.They (like)theWorldCup.26.Whattheyoften (do)onSaturdays?27.Myparents (read)newspaperseveryday.28.Thegirl (teach)usEnglishonSundays.29.SheandI (take)awalktogethereveryevening.30.There (be)somewaterinthebottle.31. Whattime_hisfather_(do)thework?32.I_(get)upatsixoclock.33._you_(brush)yourteetheverymorning.34. What_(do)heusually_(do)afterschool?35.Howmanylessons_yourclassmates_(have)onMonday?习题答案：1. play 2.gets 3.Do; brush 4.does do 5. studies 6. goes 7.studies 8.Does ;read 9.does ;have 10.does ;do11. likes 12.have 13.looks 14.do 15.am 16.goes 17.does 18.watches 19.have 20.is 21.has 22.are 23.dont watch24.doesnt go 25.like 26.do 27.read 28.teaches 29.take 30.is 31.does do 32.get 33.Do; brush 34.does;do 35.do; have