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1、时态在英语中，动词的时态、语态、语气都是通过不同的动词形式來体现的。英语中共有16种时态。一般进行完成完成进行现在一般现在时现在进行时现在完成时现在完成进行时过去一般过去时过去进行时过去完成时过去完成进行时将來一般将來时将來进行时将來完成时将來完成进行时过公将来过去将来时过去将来进行时过去将来完成时过去将来完成进行时一般进行完成完成进行现在work/worksam/is/areworkinghave/hasworkedhave/hasbeenworking过去workedwas/wereworkinghadworkedhadbeenworking
2、将来shall/willworkshall/willbeworkingshall/willhaveworkedshal1/wi11havebeenworking过去将来should/wouldworkshould/wouldbeworkingshou1d/wou1dhaveworkedshould/wouldhavebeenworkingI.一般现在时构成：一般现在时的句子中谓语动词要用动词原形，否定句中用doirt,疑问句中把do放在主语Z前（疑问代词在问句中作主语时除外）。don^donot如果主语是第三人称单数，动词要发生变化（变化规律与名
3、词单数变复数相同），否定句屮用doesn't,疑问句中把does放在主语之前。doesn^doesnot动词“be”在一般现在时屮有三个形式，分别是：am,is,are.am用于I之后，is用于第三人称单数之示，are用于第二人称单数和所有复数之后。否定句屮把not放在be之示，疑问句中把be放在主语Z前。Iusuallygotoschoolat6:00everymorning.Idon'tlikeswimming.Dotheywanttobuythatbook?Wheredoyoulive?Jimexercisesthreetimesaweek
4、.Alicedoesn^tcatbreakfastontheweekend・DoesAlicegotoschoolearly?Whatdoesyourfatherdo?Iamateacher・Iamnotastudent.Mybestfriendisadoctor.Mybestfriendisn'tanurse.LilyandLucyarcfriends.LilyandLucyaren^ttwins.Areyouapolicemanorafireman?Isyourmotherateacher?功能：1.表示经常性、习惯性动作，与always,o
5、ften,usually,sometimes,never,everyday,everyweek,onceaweek,twiceamonth,ontheweekend,onMondays,occasionally,normally,generally,weekly,nowandthen,asarule,rarely等连用。Mr.Johnlovessports.Healwaysgetsupveryearly・Wegotoschoolfivedaysaweek.Ineversituplateintothenight.我从来不熬夜。Hecyclestow
6、orkeveryday.他每天骑年上班。2.表示普遍真理或客观事实。Thesunrisesintheeast.Theearthmovesaroundthesun.Waterboilsat100°CoTheUnitedStatesconsistsoffiftystates.美国由50个州组成。Twonegativesmakeanaffirmative.否定之否定等于iY定。Greatmindsthinkalike.英雄所见略同。3.表示根据吋间表(如：航班表、列车表、学校的吋间安排)将要发生的事情。Schoolbeginsat8:00everyda
7、y.TheflighttoLondonleavesat3:00thisafternoon.Thetrainfi-omBeijingarrivestomorrow.OurtripstartsfromMountTaitomorrowandfinishesupinHuashanMountainaweekfromtomorrow.我们的旅行明天从泰山开始，-•周后在华山结束。4.在时间状语从句或条件状语从句中用一般现在时表示将来的动作。IwillvisitmyEnglishteacherifitisfinetomorrow.Callmewhenyouge
8、thome・Ifitrainswe'llhavetocalloffthegame.如果天耍下雨，我们只好取消比赛。11.现在进行时构成：
