She smokes too much.
I telephone to my parents once a week.
2.表达客观真理，科学事实。如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。
Three and four makes seven.
The teacher told us that the earth moves around the sun.
Shenyang lies in the north of China.
3.在格言或名言警句中。
Pride goes before a fall. 骄必败。
Actions speak louder than words.事实用于雄辩。
4.表示现在的状态、性格、个性。
I don’t want more, thanks.
He is a good student. He is always ready to help others.
五.一般现在时其它用法
一般现在时表将来
1.含有go, come, return, arrive, leave, start, begin等动词的一般现在时表将来。表示在时间上已确定或安排好的事情。
The school bus leaves at eight .
2.在时间或条件句中。
When Tom comes, ask him how to fix the tap.
I‘ll help you as soon as I arrive there.
3.在动词hope, take care that, make sure that等后。
I hope she has a good time.
Before you leave the room, please make sure that the door is closed.
4.时间状语从句,条件句中,从句中(常含有till , once , as soon as ,
when , while , before , after , so long as , by the time , if , in case ,
unless , even if , whether , the moment , the minute )
Eg. As soon as I get there, I will deal with this matter.
Whether he is happy is an important thing to her.
5.倒装句，表示动作正在进行
Here comes the teacher!= The teacher is coming.
There goes the bell. = The bell is ringing.
Here comes the car. = The car is coming.
一般现在时表过去
1.“书上”，“报纸上”的叙述。
The newspaper says that the president will retire next month.
2.叙述往事，使其生动。
Napoleon’s army now advances and the great battle begins.