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1、4初中英语五种时态讲解一、一般现在时。概念：经常、反复发生的动作或行为及现在的某种状况1、基本结构：①be动词；②行为动词当主语是第三人称时，谓语动词要用第三人称单数形式，加-s/es。除此之外都用动词原形。否定形式：①am/is/are+not;②此时态的谓语动词若为行为动词，则在其前加don't,如主语为第三人称单数，则用doesn't，同时还原行为动词。一般疑问句：①把be动词放于句首；②用助动词do提问，如主语为第三人称单数，则用does，同时，还原行为动词。例：肯定句：主语+V原+其他。Iusuallygotosch
2、oolbybus.主语（三单）+V三单Sheplaystennisonceaweek.疑问句：Do+主语+V原……？Does+主语（三单）+V原……？否定句：主语+don’t+V原.主语（三单）+doesn’t+V原.2、用法：1、表示经常或习惯性发生的动作。Iusuallygotoschoolbybus.2、表示客观真理、事实。Theearthgoesaroundthesun.3、在时间、条件等状语从句中，用一般现在时表示将来。(if,assoonas,until,when)Ifitrainstomorrow,wewon’t
3、gotothepark.WhenIgrowup,I’llgotoParis.3、时间状语：Always,often,sometimes,usually,onSunday,onMondayafternoon,everyday/month/year/week,inthemorning,onceayear,twiceaday,threetimesaday等例题：1.He______(be,am,is,are)ateacheratNo.2MiddleSchool.2.He______(have,has)classesintheafte
4、rnoon.3.He______(get,gets)upathalfpastsixeverymorning.4.Healways_____(come,comes)toschoolontime.5.He______(study,studies)veryhardathislesson.6.Oneandtwo_____(be,is,are)three.7.Blueandyellow_____(make,makes)green.8.Theearth_____(move,moves)roundthesun.9.Iwillgotherei
5、fI____(be,willbe,am,is,are)freetomorrow.10.IwillgotherewhenI_____(have,willhave,has)timetomorrow.11.Hewon’tcometothepartyunlesshe_____(be,willbe,am,is,are)invited.12.I’llwaithereuntilmymother____(come,comes,willcome)back.13.Pleasereturnthebooktothelibraryassoonasyou
6、______(finish,finishes,willfinish)readingit.14.Onceyou_____(see,sees,willsee)him,youwillneverforgethim.4⑵一般过去时。1、⑴表示过去某个时间发生的动作或存在的状态。Igotuplatethismorning.⑵表示过去的习惯或经常发生的动作。WhenIwasinthecountryside.Ioftenswamintheriver.Iusedtogofishing.2、结构：基本结构：①be动词；②行为动词否定形式：①was
7、/were+not;②在行为动词前加didn't，同时还原行为动词。一般疑问句：①was或were放于句首；②用助动词do的过去式did提问，同时还原行为动词。例：肯定句：主语+V过去+其他。Wevisitedthemuseumlastweek.MyfriendTomwenttothebeachyesterday.疑问句：Did+主语+V原……？Didyougoshoppingwithhim?Didshecookdinnerforherfamily?否定句：主语+didn’t+V原……。Hedidn’tgotoseethemo
8、vielastSunday.3、动词的规则变化。4、时间状语：Yesterday,lastnight/week/year/month,lastSunday,in1995,theotherday,justnow,ago等例题：1.He____(be,was,were,been)
