一般现在时：表示真理性,经常性,习惯性,普遍性.[在口语里常用,在叙事性文章和故事里很少用]例句：1.Theearthissmallerthanthesun.[状态][真理性]2.Tomgetsupearlyeverymorning.[动作][经常性和习惯性]...

　　一般现在时Ialwaysswimintheafternoon.Itisusuallysunny.Healwaysswimsintheafternoon.Hefeelsveryrelaxed.Theearthissmallerthanthesun.Tomgetsupearlyeverymorning.Everybodyknowshim.一般过去时YesterdaywewenttotheparkThebookwastheretenminutesago.Iswamyesterdayafternoon.Ididn'tdomyhomework.Heswamyesterdayafternoon.Hehadnothingtodoatthattime.Iwenttoswimminglastweek.一般将来时Tomwillhelpyoutomorrow.Weshallbehereintimenexttime.NextFridaywe'regoingonourfirstfieldtriptostudyaboutourhometown.I'mgoingtovisitMarynexyMondayHeisgoingtostudyabroad.