The Present Simple Tense (методичний матеріал)

The Present Simple tense.
The present simple refers the action which it denotes to the present time in a broad sense.
It bears no indication as to the manner in which the action is performed that is whether it is perfective or imperfective momentary or durative etc.
The present indefinite.To state facts in the present. We use the present tense to talk about: something that is true in the present:
I’m nineteen years old.
He lives in London.
I’m a student.
I live in St.-Petersburg.
To denote habitual actions.
Her daughter works in Rome.
We get up at 7.
On Sundays we stay at home.
To state general rules or laws of nature, something that is always true.
The earth is round.
The adult human body contains 206 bonesIt snows in winter.
Snow melts at 0°C.
To express declarations, announcements, etc. referring to the moment of speaking.
I pronounce you man and wife
I declare the meeting open.
I offer you my help.
To denote future actions.
Mostly with verbs of motion (to go, to come, to start, to leave, to return, to arrive, to sail and some other verbs), usually if the actions denote a settled plan and the future time is indicated:
The school term starts next week.
They start on Sunday.
My flight leaves at four thirty this afternoon
We fly to Paris next week.
In adverbial clauses of time and condition after the conjunctions when, till, until, as soon as, as long as, before, after, while, if, unless, in case, on condition that, provided, etc.:
Do it as soon as you are through with your duties.
I promise not to tell her anything if you help me to get out of here.
If it is the future indefinite that is used to denote future actions:
I don’t know when she will come.
I’m not sure if she will come at all.
To denote past actions:
In newspaper headlines, in the outlines of novels, films, etc.:
Dog Saves Its Master.
Students Say No to New Weapon.
They fall in love with each other.
To denote completed actions with the meaning of the present perfect (with the verbs to forget, to hear, to be told).
I forget your telephone number. I hear you are leaving for England?
I am told she returned from France last week.