1. First lesson
Profa. Beatriz Montes
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2. Introduction
 In this course the students are learning English as a
second language. It develops the fundamental
grammar comprehension through explanations and
variety of application exercises in order to lead them
to communicative performances when speaking and
writing as well as understanding the language in
listening and reading activities. This course promotes
vocabulary acquisition, especially that within the
students’ technological area, computer field and daily
life.
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3. Note: To the students
 Before you continue the skill of this lesson you have to
answer the pre test.
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4. Pre test #1
 EXERCISE: Complete the sentences. Use a or an.
 1. Bob is eating ____ apple.
 2. Tom is eating ______ banana.
 3. Alice works in ______ office.
 4. I have _____ idea.
 5. I have _____ good idea.
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5. Objectives
 Explain how to use the correct word order in a
sentence.
 To define how to enrich their vocabulary words in
English.
 Explain how to capitalize words correctly in a sentence.
 Explain how to use punctuate sentences correctly in a
sentence.
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6. Skill: USING AN VS. A
 A and an are used in front of singular count nouns.
 A count nouns are things that you can counts.
 Example:
 Animal, house, table, building.
 (a) A dog is an animal.
 In (a) dog and animal are singular count nouns.
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7. Using An
 Use an in from of words that begin with the vowels a,
e, i, and o:
 An apartment, an elephant , an idea, an ocean.
 (b) I work in an office.
 (c) Mr. Lee is an old man.
 In ( C ): Notice that an is used because the adjective
(old) begins with a vowel and comes in front of a
singular count noun (man).
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8. Using An versus A
 Use an if a word that begins with “u” has a vowel
sound:
 An uncle, and ugly picture.
 COMPARE:
 (d) I have an uncle.
 Use a if a word that begins with “u” has a /yu/ sound:
 A university, a usual event.
 COMPARE:
 He work at a university.
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9. Using An versus A
 In some words that begin with “h” is not pronounced.
Instead, the word begins with a vowel sound and an is
used :
 An hour, an honor.
 COMPARE:
 (F)I need an hour to finish my work.
 In most words that begin with “h” is pronounced.
 Use a if the “h” is pronounced.
 COMPARE:
 (g) I live in a house. He lives in a hotel.
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10. Exercise #1
 Instruction:
 Go to the content with
the article a vs. an and
do the exercise #1.
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