高中重点英语语法讲解
下面是小编整理的高中重点英语语法讲解，一起来看看吧。
形容词和副词的原级
(1)讲述某人/物自身的情况时，用原级。基本句型是：
主语(sb./sth) + 谓语动词+ (very/too/so/quite/rather…) +形容词/副词原级 +…。
1)在否定句或疑问句中可用so… as.
He cannot run so/as fast as you.
2)当as… as 中间有名词时采用以下格式。
as +形容词+ a +单数名词
as + many/much +名词
This is as good an example as the other is.
I can carry as much paper as you can.。
3)用表示倍数的词或其他程度副词做修饰语时，放在as的前面。
This room is twice as big as that one.
Your room is the same size as mine.
4) 倍数+ as + adj. + as 倍数+ then + of
This bridge is three times as long as that one.
This bridge is three times the length of that one.
Your room is twice as large as mine.
Your room is twice the size of mine.
如：He is very oldnow.(他现在很老了) / They ran quite fast.(它们跑得相当快) / The weather looks ratherbad.(天气看上去相当糟) / I am so happy!(我是如此的快乐)
☆表示两者之间没有差别时，使用句型：
主语(第一个人物) + 谓语动词 + as + 形容词/副词原级 + as + 第二个人物 +…。
如：He is as excited as his younger sister.(他和他妹妹一样兴奋)/ Lily rode her bike as slowly as an old lady.(莉莉骑车像老太太一样慢)/ They picked as many apples as the farmers (did)。(他们摘的苹果和农民一样多)
☆表示第一个人比不上第二个人时，使用句型：
主语(第一个人物) + 谓语动词(否定式) + as / so + 形容词/副词原级 + as + 第二个人物+…。
如：He is not so / as excited as his younger sister.(他没他妹妹那么兴奋) / Lily did not ride her bike so / as slowly as an old lady. (莉莉骑车不像老太太那样慢) / They didn’t pick so / as many apples as the farmers (did)。 (他们摘的苹果不如农民多)
(2) 讲述两者有差异，第一个人物超过第二个人物时，用比较级。基本句型：
主语(‘A’)+谓语动词+(much/a little/even/still)+形容词/副词比较级+than+第二个人物(‘B’)+…。
如：A modern train is much faster than a car.(现代的'火车比轿车快多了) / This book didn’t cost me more than that one.(这本书花费我的钱不比那本多)
讲述两者有差异，第一个人物不及第二个人物时，用比较级。句型是：
主语(‘A’) + 谓语动词 + less+ (多音节形/副)比较级 + than +第二个人物(‘B’) +…。
如：I think English is less difficult than maths.(我认为英语不比数学难)/ Do you think it less important to learn a foreign language?(你认为学外语不那么重要吗?)
(3)讲述某人/物是一群之中最突出的一个时，用最高级。句型是：
主语(sb./sth) + 谓语动词 +(the) +形容词/副词最高级 +in / of …。
如：The Changjiang River is the longest in China.(长江是中国最长的河流) / He jumped (the) highest of the three (boys)。(三个男生中他跳得最高
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