2011届高考英语语法专题复习语法剖析---三种时态?
详细内容
e,leave,go,arrive,start,move,stop,open,close,return等一类动词。
The plane takes off at ten o’clock.?They leave for Shanghai next Sunday.?The film starts at eight o’clock this evening.在有连词if,unless,before,when,as soon as,once,however等引起的时间（条件、让步）状语从句,需用一般现在时表示将来。If you work hard,you’ll sueed in passing the exam.??We’ll go out for a walk as soon as the rain stops.一般现在时还可用在戏剧、电影的剧本解说、体育比赛的解说以及图片的说明等场合。Tom carries the ball to the left.?The picture shows us how they built the motorwaylast year.现在进行时?
构成：动词原形-ing?(1)一般情况在动词原形后加-ing。例如：go―going,stand―standing?(2)以不发音的e结尾的动词，去掉e,再加-ing。例如：arrive―arriving?(3)少数几个以-ie结尾的动词，须将ie变成y,再加-ing。例如：die―dying lie―lying(4)以元音+辅音结尾的重读闭音节，双写辅音字母，再加-ing。例如：stop―stopping?用法?用法
例句
表示现在（指说话人说话时）正在发生的事情。Tom is playing basketball now.?We are waiting for you.表示目前一段时间内正在进行的动作,说话时动作未必正在进行。Mr Green is writing another novel.?She is learning piano under Mr Smith.与always,constantly,forever 等词连用,表示反复发生的动作或持续存在的状态,往往带有说话人的主观色彩,如赞叹或厌恶等。She is always changing her mind.（表示厌烦）You should not be constantly making the same mistake.表示在最近计划或安排要进行的动作。常限于go,e,leave,start,arrive,return,stay,do,have,wear等表移动、方向的词。We are starting the work in a few days.?My friends are ing to see me tomorrow.The plane is taking off in a few minutes.一般将来时?
构成
用法
例句
shall/will+动词原形表示单纯的将来；必然的将来；表示意愿、决心We shall know more and more as time goes on.No one knows what will happen in the future.I will explain it once again if you listen to me.be going to +动词原形表示计划、打算；表示客观迹象What are you going to be in the future?Look! The clouds are gathering.It is going to rain.be about to + 动词原形表示即将或正要去做……,不与时间状语连用, 但可和when 从句连用。I am about to go to the cinema.The train is about to leave.be to + 动词?原形表示预定要做……；（表命令、禁止）应该……All these are to be answered for!You are not to smoke in the meeting-room.be doing表示按计划安排即将发生的动,常限用于go,e,start,leave,reach,arrive,return,move等位移动词。They are leaving for Shanghai next week.When are you going abroad?