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Articles and Demonstratives
Lesson 2-Articles &
Demonstratives
 Articles are special adjectives that come
before nouns.
 The words a, an, and the are articles.
 Example: The telescope was mounted on a
large tripod.
Articles-The
Use the to refer to a specific item(s).
 Examples:
the sun
the eye
the stars
Articles-A & An
 Use a or an to refer to any one item in a group.
 A is used before words beginning with a consonant.
 An is used before words beginning with a vowel
sound.
 Examples:
 a planet
 an astronomer
 an hour
Demonstratives
 Adjectives that tell which one are called
demonstrative adjectives.
 They point out specific persons or things.
 Example:
This planet is nearer to the sun that that star.
These telescopes are more powerful than those
telescopes.
Demonstratives
 The demonstratives this and these point out
nearby people or things.
The demonstratives that and those point out
people or things that are more distant.
Singular/Plural Demonstratives
 Singular demonstratives:
this
That
 Plural demonstratives:
these
those
Guided Practice
Directions: Write which words correctly completes each sentence.
1. The astronomers are observing (a, the) sky.
2. This observatory has (a, an) enormous telescope.
3. We made a visit to (a, an) observatory.
4. The sky was very clear (that, those) evening.
5. (This, These) chart shows the constellation Pisces.