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.