一般现在时1.一般现在时的基本用法:1)经常性或习惯性的动作,常与表示频率副词的时间状语连用。时间状语:everymorning(afternoon,Sunday),sometimes,onSunday,often,usually等.例如:IwakeupatsixO’clockeverymorning.MyfriendsoftengototheparkonSundays.2)用于表示客观真理,客观存在,科学事实。例如:Theearthmovesaroundthesun.TomorrowisTuesday.3)用于格言或警句中。例如:Wherethereisawill,thereisaway.4)用于表示现在时刻的状态、能力、性格、个性。例如:Idon'twantsomuch.Sheisagoodgirlandalwayshelpothers.Mywatchisverynew。2.一般现在时的构成:当主语是第一人称,第二人称或第三人称复数时,谓语动词要用动词原形。当主语是第三人称单数时,谓语动词要用第三人称单数形式,即动词词尾要加s或es.例.Wehavefourclassesinthemorningeveryday.Theyworkinabigoffice.Shelikessingingverymuch.附注:动词的第三人称单数变化形式分为规则变化和不规则变化两种形式。1.规则变化:(1)直接在动词词尾加-s.ask---askswork---worksget---getsstay---stays(2)以字母s,x,ch,sh或o结尾的动词,在词尾直接加-es.fix---fixesdo---doesgo---goespass---passeswatch---watcheswash____washes(3)以“辅音字母加“y”结尾的动词,要先变y为i再加-es.try---triesstudy---studiescry---cries2.不规则变化:be----ishave----has3.一般现在时的句子转换:变否定句、一般疑问句(1)一般疑问句:当句子中有be动词或情态动词时,则把be动词或情态动词提到主语的前面变成疑问句;否定句:在be动词或情态动词后面加not变成否定句.例:Sheisastudent.Icanswim.→Issheastudent?→Canyouswim?→Sheisnotastudent.→Icannotswim.(2)一般疑问句:当句子中即没有be动词,也没有情态动词时,则在主语前加助动词do,does变成问句;否定句:在主语后谓语动词前加助动词don’t,doesn’t变成否定句,助动词后的谓语动词要变成动词原形。例:Wegetupat7:00everymorning.→Doyougetupat7:00everymorning?→Wedon’tgetupat7:00everymorning.Shehasalittlebrother.→Doesshehavealittlebrother?→Shedoesn’thavealittlebrother.百看不如一练一、写出下列动词的第三人称单数形式。sitswimreadmakerunwritetypegowatchcleancrywashjumpcomestudy二、用do、does填空1、_____yourideabikeafterschool?Yes,I________.2、______yoursisterlikefootball?No,she______not.3、What_______thestudentshave?Theyhavesomepens.4、How______Lindagotoschool?Shegoestoschoolonfoot.5、He______notspeakEnglish.HespeaksChinese.6、______theywatchTVonSundays?Yes,they______.7、Myfatherandmother______notreadnewspapersonSaturday.三、改句子1.Doyouoftenplayfootballafterschool?(肯定回答)2.Ihavemanybooks.(改为否定句)3.GaoShan’ssisterlikesplayingtabletennis(改为否定句)4.ShelivesinasmalltownnearNewYork.(改为一般疑问句)5.IwatchTVeveryday.(改为一般疑问句)6.Davidhasgotagoal.(改为一般疑问句)7.Wehavefourlessons.(否定句)8.Nancydoesn’trunfast(肯定句)9.Mydogrunsfast.否定句:一般疑问句:10.Mikehastwolettersforhim.一般疑问句:否定句:11.IusuallyplayfootballonFridayafternoon.否定句:一般疑问句:12.SuYangusuallywashessomeclothesonSaturday.否定句:一般疑问句:13.Mingmingusuallywaterstheflowerseveryday否定句:般疑问句:14.Tomdoeshishomeworkathome.否定句:一般疑问句:现在进行时一、现在进行式的基本结构。1)第一人称:主语+am+现在分词+……IamwatchingTV.2)第三人称单数:主语+is+现在分词+……Sheiswashingthedishes.3)第二人称及复数人称:主语+are+现在分词+……Theyareplayinggames.二、进行时的基本用法:1)表示现在(指说话人说话时)正在发生的事情。Wearewaitingforyou.2)习惯进行:表示长期的或重复性的动作,说话时动作未必正在进行。Mr.Greeniswritinganothernovel.SheislearningEnglishunderMr.Smith.3)表示渐变的动词有:get,grow,become,turn,...