资源描述:
《初中英语语法:各个时态的标志和时态间的区别》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、英语中各个时态的标志和时态间的区别一)一般现在时。(do/does,am/is/are,情态动词)a.一般现在时表示的是客观事实或平时反复做的事情通常有频率副词always,usually,often,sometimes,seldom,onceaweek,everyday等。如:Theearthgoesaroundthesun.JapanlieseastofChina.Heisneverlateforschool.Heoftengetsupatsixeveryday.Catscanclimbtrees.Iheartheyhavemovedintoanewhouse.Hewritesto
2、hisfatheronceayear.b.一般现在时还可以表示、安排好的,或即将发生的事,通常使用瞬间动词come,start,begin,return,leave等。如:Myplaneleavesat6:00a.m..Isthereanymeetingtoday?Thegamestartsat8:00.(二)现在进行时。(am/is/aredoing)a.现在进行时表示现在或最近正在做的事情,后面一般接延续性的动词,都表示动作没有进行完。如:Look!Theboyisdancing.Heiswatchingafootballgame.Whatareyoudoingnow?Theyar
3、epreparingfortheexamrecently.b.还常与always,usually,constantly,forever,continually等词连用表示一种语气,“总是,老是…”,如:Heisalwaysworkinglate.第-9-页共9页Whyareyoualwaysmakingthiskindofmistake?Heiscontinuallygettingintotroublewiththepolice.c.后面接暂转动词时表示正在反复的动作,或表示将来时(一般只有go,come,leave和have)如:Themonkeysarejumping.Theyar
4、ehittingthetree.表将来:Wearegoingswimmingthisafternoon.Theyareleavinghere.TheyarehavinganEnglishclasstomorrow.试比较:Heisdoinghishomeworkuntilhisparentscometotakehimhome.Hewilldohishomeworkuntilhisparentscometotakehimhome.注:表示知觉、感觉、看法、认识、情感或愿望的动词和大部分暂转动词不能用现在进行时。如:see,hear,smell,taste,feel,like,hate,d
5、islike,want,love,hate,want,know,forget,remember,understand,believe,suppose,mean,wish,hope,need,believe,refuse,suppose,have,fit,seem,fear,own等(三)现在完成时a.现在完成时中用瞬间动词表示说话时已经完成的动作,而且这个动作对现在还有影响,句中的时间副词主要有already,yet,now,bythistime,bynow等;用延续动词表示过去已经开始持续到现在而且还有可能继续持续下去的动作,句中的时间副词主要有thisweek,inthepast/
6、last/recentfewyears,since…,for…。如:Hehasalreadyfinishedhishomework.Hehasn’tarrivedhereyet.Theyhavebeenherefortenyears.Hehaswaitedheresincehecame.*与一般过去时比较,看下面一段对话:A:Haveyouseenmybook?IthinkIhavelostit.第-9-页共9页B:Yes,I______(see)itonyourtablejustnow.Butit______(notbe)thereanylonger.Whereandwhen____
7、__you______(lose)it?A:IthinkI______(lose)ityesterday.B:______you______(find)it?A:______.(Yes./No.)b.现在完成时中的瞬间动词与延续动词的相互转化:havefinished/stopped/ended→havebeenoverhavestarted/begun→havebeenonhavejoined→havebeenin/amemberofhave