The document discusses the difference between the words "like" and "as". It explains that "like" is a preposition followed by nouns, pronouns, or verbs ending in "ing", and is used to indicate similarity. In contrast, "as" is used before a subject and verb to show something is done in a certain way. It can also be used as a preposition followed by nouns to indicate something is being used for a specific purpose.

1. LIKE VERSUS AS I work as a teacher, like you.

2. Like is a preposition , so it is followed by nouns, pronouns or ing. It means similar to, the same as of for example.