diapositivas an a

1. WELCOME TO ENGLISH WEEK 4
The principal topics are:
The indefinite article a/an
Prepositions of Time and Prepositions of Place
Adverbs
Countable and Uncontable nouns
Question Tags

2. The indefinite article a/an
Examples: Rules:
I has got a car
We use a:
Before singular countable nouns which
begin with a consonat sound.It is a house
It is a cat

3. The indefinite article a/an
Examples: Rules:
an hour
We use an:
Before singular nouns which begin
a vowel sound.
Mary is an engineer
an apple

4. The indefinite article a/an
Note: We don´t use a/an
I need some coffee and sugar
With uncountable. In these cases, we
use ¨some¨ instead a/an.
I will buy some envelopes
With plural nouns. In these cases, we
use ¨some¨ instead a/an.