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英语时态的问题,怎么讲,能通俗易懂呢?

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英语时态的问题,怎么讲,能通俗易懂呢?
英语时态的问题,怎么讲,能通俗易懂呢?
英文最基本的五个时态
英文最常用的时态有五个:一般现在时;现在进行时;一般过去时;一般将来时和现在完成时.
一、 一般现在时:
用动词原型表示,但单数第三人称后要加-s,在词尾加-s时要注意:
1. 一般情况:加-s 例:reads,writes,says
2. 以s,x,ch,sh收尾的词加-es 例:teaches,washes,guesses
3. 以辅音字母+y结尾的词变y为i再加-es 例:try—tries,carry—carries.
这个时态的疑问句一般以句首加助动词do,does构成.句中动词要用原型动词be提前:
do you know it?
are you students?
does she have a pen?
1.一般现在时表示经常性或习惯性的动作:
we always care for each other and help each other.
they cycle to work every day.
2.现在的特征或状态:
he loves sports.
do you sing?a little.
i major in english.
3. 遍真理:
light travels faster than sound.
two and four makes six.
the moon moves round the earth.
有些表示状态和感觉的动词常常可用于一般现在时:be,love,like,hate,want,hope,need,prefer,wish,know,understand,remember,believe,recognize,guess,suppose,mean,belong,think(以为),feel,envy,doubt,remain,consist,contain,seem,look(看起来),see,fit,suit,owe,own,hear,find,suggest,propose,allow,show(说明),prove,mind(在意),have(有),sound(听起来),taste(尝起来),matter,require,possess,desire等等.
i feel a sharp pain in my chest.
the soup contains too much salt.
you see what i mean?
the coat fits you very well.
how do you find the book?
有些表示动作的动词间或可用于这一时态,表示现刻的动作,由于动作持续时间机短,用于进行时不自然:
i send you my best wishes.
i salute your courage.
now i extend my heartfelt thanks to you.
在口语中这个时态用来表示一个按规定、计划或安排发生的情况(这是都有一个表示未来时间的状语):
when do the train leave(stop at jinan)?
the plane take off at 11 am.
tomorrow is saturday.
is there a firm on tonight?
但这只限少数动词,如begin,come,go,leave,sail,start,arrive,return,dine,end,stop,depart,open,close,be等.另外,在时间或条件从句中,将来动作或状态多用这一时态表示:
tell her about that when she come.
turn off the light before you leave.
we‘ll start as soon as you are ready.
在口语中,这个时态间或可以用来表示一个已经发生的动作(这个动作发生的时间在说话人脑中处于很不重要的地位):
they say xiao wu is back.is that true?
xiao yu tells me you‘re going abroad.
oh,i forget where he lives.
yes,you answer quite well.
此外一般现在时还多用于报刊、电影、电视解说等其他几种情况.
二、 现在进行时
现在进行时用助动词be的人称形式加现在分词构成,它的肯定、否定、疑问形式如下:
i am working.
i am not working.
am i working?
现在进行时主要表示现在或现在这一阶段正在进行的动作.
where are they having the basket-ball match?