1. Overview:
Comparative structures are used to compare two things. They help us express how one thing is similar to or different from another. The structures "as... as" and "less than" are specific ways to make these comparisons.
2. Cases of Usage:
Case 1: Using "as... as" to show equality. This structure indicates that two things are the same in some way.
Example: "My sister is as tall as I am."
Case 2: Using "less than" to show that one thing has a smaller degree of something than another.
Example: "This book is less interesting than that one."
Case 3: Using "not as... as" to show that one thing is not equal to another in some way.
Example: "This exercise is not as difficult as the last one."
3. Exceptions or Things to Pay Attention To:
- When using "less than," it is important to remember that it is typically used with adjectives or adverbs. For example, "less expensive," "less quickly."
Example: "This car is less expensive than that car."
4. Additional Notes:
Common mistakes include mixing up "as... as" and "not as... as." Ensure you choose the correct structure based on whether you want to show equality or inequality.
