To compare two things in English, we use comparative adjectives. These special words help us say that one thing has more of a quality than another. For example, if you have two apples, one might be bigger than the other. We change the adjective to show this comparison. For short adjectives, we usually add -er to the end, like small 变成 smaller. For longer adjectives, we put the word more before the adjective, such as beautiful 变成 more beautiful. Remember to use than after the comparative adjective when you name the two things you are comparing. This is a basic but very important part of English grammar for everyday conversations.
What Are Comparative Adjectives?
Comparative adjectives help us compare two nouns (people, places, things, ideas). They show which of the two has a certain quality to a greater degree.
Think about two cars. One car might be faster than the other. Or one book might be more interesting than another book.
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How Do We Form Comparative Adjectives?
We change the adjective’s form to make it comparative. There are two main rules:
- For most short adjectives (1 or 2 syllables), we add -er.
- For most long adjectives (3 or more syllables), we add more before the adjective.
Short Adjectives: Add -er
If an adjective is short, usually one or two syllables, we add -er 直到最后。.
- old → older
- fast → faster
- nice → nicer (if it ends in ‘e’, just add ‘r’)
Long Adjectives: Use “more”
If an adjective is long, usually three or more syllables, we put the word more before it.
- beautiful → more beautiful
- expensive → more expensive
- important → more important
Using “than” with Comparatives
When you compare two specific things, you almost always use the word than after the comparative adjective.
It tells us what the first thing is being compared to.
- My car is faster than your car.
- This book is more interesting than that movie.
Special Spelling Rules
Sometimes, we need to change the spelling of an adjective before adding -er.
- If an adjective ends in -y, change y 到 i and then add -er: happy → happier, noisy → noisier.
- If a short adjective ends in a consonant-vowel-consonant pattern, we often double the last consonant before adding -er: big → bigger, hot → hotter.
What About Superlative Adjectives?
When you compare three or more things and want to say which one has the most of a quality, you use a superlative adjective.
对于 superlatives, we usually add -est to short adjectives (e.g., oldest, biggest) and use the most for long adjectives (e.g., the most beautiful).
请记得使用 the before the superlative adjective.
例如 Lisa is small. Lulu is bigger than Lisa. But Lenny is the biggest!
| 形容词 | Comparative | Superlative |
|---|---|---|
| old | older | oldest |
| big | bigger | biggest |
| nice | nicer | nicest |
| happy | happier | happiest |
| expensive | more expensive | most expensive |
| beautiful | more beautiful | most beautiful |
示例
- My new phone is faster than my old one.
- This book is more interesting than that movie.
- The mountain is higher than the hill.
- Learning English is easier with Langcom.
- Cities are often noisier than the countryside.
- Today’s weather is hotter than yesterday’s.
练习
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西班牙语母语者常犯的错误
讲西班牙语的人有时会犯以下错误：
- Using “more” with short adjectives: In Spanish, you often use “más” for all comparisons. In English, remember to use -er for short adjectives.
-
错误： My house is more big than yours.
-
正确： My house is bigger than yours.
- Forgetting “than”: When comparing two specific things, you need than.
-
错误： She is taller him.
-
正确： She is taller than him.
常见问题
What is the main difference between comparative and superlative adjectives?
Comparative adjectives compare two things (e.g., taller). Superlative adjectives compare three or more things and show which one has the most of a quality (e.g., the tallest).
Do all adjectives follow the -er / more rule?
Most do! But there are a few irregular ones, like good → better, ， 和 bad → worse. You will learn these as you continue studying English.
When do I use “the” with comparative adjectives?
You usually don’t use the directly before a comparative adjective when comparing two things (e.g., He is taller than me, 而不是 the taller). We use the 与 superlative adjectives (e.no-translation>He is the tallest).
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