Word origins: roots and prefixes

What is a prefix?

• A word, letter, or number placed before another

• A word, letter, or number placed after another

• A word in the sentence

• The subject of the sentence

The following words have prefixes:

-Coherence

-Biography

• True

• False

In the word ¨unimportant¨, ¨un-¨ is a prefix.

• True

• False

Complete the following word with the correct prefix:

-Read

• Re

• Auto

• Bi

• Hyper

The prefixes are usually one or two syllables long in a word

• True

• False

When to use prefixes?

• In any word.

• Are used mainly to long phrases into a single word.

• Are used mainly to shorten phrases into a single word.

• Only in sentences

Prefixes are also important in academic disciplines, specifically to classify subjects.

• True

• False

¨Not unnecessary¨are a correct negative prefix?

• True

• False

What is the prefix of ¨exterminador¨

• Exter-

• -Mina-

• Extra-

• Ex-

In which words we can use the prefix ¨auto¨

• biker

• graph

• biography

• dog