前面说到形容词,那就不能不提他们的比较级,最高级,
从古至今,由中及外,只要有人的地方,就会有对比,“你看隔壁家的小孩…”,“你看这女的比刚才那个还漂亮”,“他比他有钱多了”,“这世界谁最富”,生活无时无刻不是在比较中度过,社会也在比较中发展,体制也在比较中进步,
好了,扯远了,当人们由比较的欲望时,就出现了这个词类,

下面我们先来说说形容词的比较级和最高级的规则用法,
1、比较级(2者相比):
1)当比较的结果是相等或不相等,或只是倍数关系时:
1>“相等”时用“as+形容词原级+as+比较对象”,如:
This pen is as good as that one.
这支笔和那只笔一样好。
2>“不如”或“不相等”用“not+as/so+形容词原级+as+比较对象”,如:
My pronunciation is not as/so good as yours.
我的发音不如你的。
3>“倍数”,如“一半/两倍/三倍/...”等,用“half/twice/three times+as...as...”,如:
This room is four times as large as that one.
这个房间比那个房间大三倍。
2)当比较的结果是有大小高低等之分时:
1>单独使用,如:
Who is better?
谁更好呢?
2>和than连用,用“... 比较级 + than ...”,如:
She is smarter than me.
她比我聪明。
3>在两者之间选择“哪一个更……”时,用“Which/Who is +比较级, ... or ...?”,如:
Which sweater is cheaper, the red one or the yellow one?
4>表“两者之间最……的一个”时,用“the + 比较级”,如:
Lucy is the taller of the twins.
5>固定句子搭配表“越……,越……”时,用“the + 比较级,the + 比较级”,如:
The more you eat, the fatter you will become.
而当表:“越来越……”时,用“比较级 + and + 比较级”,多音节词和部分双音节词用“more and more + 形容词原级”,如:
We should make our country more and more beautiful.

注:如果不是口语,而是考试或习题,可以中从下面来看出是不是比较级:
1、than,如:
She is smarter than me.
2、在“…of the two…”结构中,前面的形容词常用比较级,且比较级前要加定冠词the,如:
Lucy is the taller of the twins.(双胞胎,也是two)
3、在“Who/Which…, A or B”中,如:
Which sweater is cheaper, the red one or the yellow one?

1、最高级(3或3+以上对比):
1)有the的情况:
1>、the+最高级+比较范围,形容词最高级前必须加定冠词the,如:
He is the strongest of all the boys.
2>、表“最……之一”时,用“one of + the + 最高级”,如:
The light bulb is one of the most helpful inventions.
2)无the的情况:
1>、形容词最高级前可以由物主代词、指示代词、名词所有格等修饰,此时不用定冠词the,如:
Yesterday is her happiest day in her life.
2>、在三者或以上选择“哪一个最……”时,用“Which/Who +…+最高级, ... or ...?”,如:
Which fruit do you like best, banana, apple or strawberry?

注:如果不是口语,可以下面的词语进行分析:
1、含有in/of的介词短语,如:
He is the strongest of all the boys.
My sister is the cleaver in our family.
2、“one of the+形容词最高级+可数名词复数”结构,如:
The light bulb is one of the most helpful inventions.
3、“Who/Which…, A , B or C?”中,这里比较三个或以上,如:
Which fruit do you like best, banana, apple or strawberry?

如果是说话的话就看要表达的内容用不用比较,答题就看前后左右有没有要比较的。