The Present Simple

They read a lot. He reads a lot.
I/you/we/they read a lot. He/she/(it) reads a lot.
Spelling
-es after -s -ss,- sh,-ch, finish- finishes, -watch-watches
-x fix-fixes and -o do- does, go- goes
Verbs ending in a consonant + y, drop the -y - study -studies, try- tries

Pronunciation
In the present simple the suffix of the third person singular is pronounced
/s/ when the verb ends in a /f/, /k/, /p/ or /t/sound e.g laughs, drinks, sleeps, hates
/iz/ when the verb ends in a /s/, /ʃ/, /tʃ/, /dʒ/ sound e.g. misses, wishes, matches, arranges, rises
/z/ when the verb ends in any other sound e.g. dreams, stays, begins, stands, saves.

Practice: Third person "s" - Pronunciation
http://www.better-english.com/easier/thirdpers.htm

We use the present simple for things that are true in general, or for things that happen sometimes or all the time.
e.g I like big cities. He works very hard. Water boils at 100 degrees centigrade.
With frequency adverbs: never, hardly ever, rarely, sometimes, often, usually, always.

http://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adverbs_of_frequency.htm
http://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adverbs_of_frequency1.htm


With adverbial phrases: once/ twice/ three times a week/month/year, very often
in the /morning/afternoon/evening On Sundays/ Tuesdays etc. in summer/winter etc

Exercises with the present tense

http://members.iinet.net.au/~adelegc/grammar/present_simple/pres_simple3.html
http://members.iinet.net.au/~adelegc/grammar/present_simple/pres_simple4.html

Present simple Negative:
I/you/we/they don't watch TV very often. He/ she/it doesn't watch TV very often.

http://www.englisch-hilfen.de/en/exercises/tenses/simple_present_negation_sentences.htm

Present simple questions
do I/you/we/they watch TV? does he/she/it watch TV?
Word order do/does subject infinitive ?

http://members.iinet.net.au/~adelegc/grammar/present_simple/pres_sim_quests1.html

wh- questions
where do your parents live? where does she live?
How often do you go to the cinema? How often does she go to the cinema?

http://members.iinet.net.au/~adelegc/grammar/present_simple/pres_sim_quests2.html