# Comparative adjectives
Do you know how to use comparative adjectives like *older*, *better* and *more interesting*? Test what you know with interactive exercises and read the explanation to help you.\
你知道如何使用形容词比较级，如*older* 、*better*和*more interesting吗*？通过互动练习测试你所知道的知识，并阅读解释以帮助你。
Look at these examples to see how we use comparative adjectives.\
看看这些例子，看看我们如何使用比较级形容词。
> *The city is more interesting than the countryside.*\
> \&#xNAN;*This house is older than my house.*\
> \&#xNAN;*She's better at cooking now than before.*
Try this exercise to test your grammar.\
尝试这个练习来测试你的语法。
Read the explanation to learn more.
### Grammar explanation 语法解释
We use comparative adjectives to compare two things or show change. The comparative form depends on the number of syllables in the adjective.\
我们用比较级形容词来比较两件事或表示变化。比较级形式取决于形容词的音节数。
#### Adjectives with one syllable 单音节形容词
To make comparative forms with one-syllable adjectives, we usually add *-er*:\
要用单音节形容词构成比较级形式，我们通常添加*-er*：
> *old → older*\
> \&#xNAN;*clean → cleaner*\
> \&#xNAN;*slow → slower*
If an adjective ends in *-e*, we add *-r*:\
如果形容词以*-e*结尾，则添加*-r*：
> *safe → safer*\
> \&#xNAN;*nice → nicer*
If an adjective ends in a vowel and a consonant, we usually double the consonant:\
如果形容词以元音和辅音结尾，我们通常会双写辅音：
> *big → bigger*\
> \&#xNAN;*hot → hotter*
#### Adjectives with two or more syllables 两个或多个音节的形容词
If a two-syllable adjective ends in a consonant and *-y*, we change *-y* to *-i* and add *-er*:\
如果双音节形容词以辅音和*-y*结尾，我们将*-y*改为*-i*并添加*-er*：
> *noisy → noisier*\
> \&#xNAN;*happy → happier*\
> \&#xNAN;*easy → easier*
We use *more* to make comparative forms for most other two-syllable adjectives and for all adjectives with three or more syllables:\
我们使用*more*来构造大多数其他双音节形容词以及所有三音节或三音节以上形容词的比较级形式：
> *crowded → more crowded*\
> \&#xNAN;*stressful → more stressful*\
> \&#xNAN;*dangerous → more dangerous*
Exception: You can either add *-er*/*-r* or use *more* with some two-syllable adjectives, such as *common*, *cruel*, *gentle*, *handsome*, *likely*, *narrow*, *pleasant*, *polite*, *simple* and *stupid*.\
例外：有些双音节形容词可以添加*-er* / *-r*或使用*more*，例如*common*、*cruel*、*gentle*、*beautiful*、*likely*、*narrow*、*pleasant*、 peaceful 、 *peaceful*、*simple*和*stupid*。
> *I think life in the countryside is **simpler** than in the city.*\
> \&#xNAN;*It's **more simple** to live in the city because everything you need is there.*
#### Irregular adjectives 不规则形容词
The adjectives *good*, *bad* and *far* have irregular comparative forms:\
形容词*good*、*bad*和*far*有不规则的比较级形式：
> *good → better*\
> \&#xNAN;*bad → worse*\
> \&#xNAN;*far → further/farther*
#### *Than 比*
When we want to say which person or thing we are comparing with, we can use *than*:\
当我们想表达与哪一个人或事物进行比较时，我们可以使用*than*：
> *Their house is **cleaner than** ours.*\
> \&#xNAN;*Traffic is **slower** in the city **than** in the countryside.*\
> \&#xNAN;*After the race I was **more tired than** Anne.*
Do this exercise to test your grammar again.\
做这个练习来再次测试你的语法。
