1、一般现在时
A、表示不受时限的客观存在如：He is a boy. She is a student.
My mother is anurse. This is a dog. I have a book.
B、表示现在的习惯动作，即指现在经常发生的动作，一般现在时常用来表示现在时间里某种动作的经常性和习惯性。它常与表示程度或频度的词连用，
如：often（经常） , usually（通常，一般） , sometimes（有时） ,
always（总是，一直） , never（从不）
如：I often go to school on foot.
My father works in a school.
Mike watches TV every day.
I usually playcomputer games on the weekend.
C、表示现时的状态和现在瞬间动作.如：How are you? You look happy. What’s the matterwith you? I have a headache. What do you have for lunch? I have some chicken.
☆注意☆ 英语动词的现在时与原形同形。但当主语是第三人称单数时，须在词尾加s 或 -es。例如：I have a fish for dinner. Her mother works in a hospital. Amy often goes to school by bike. Mr. Liu teaches us English. 加-es 的动词必须是以“sh , ch , o ”等字母结尾的。如：watches , teaches ,goes , washes
