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英语语法之形容词和副词原级的用法

形容词&副词的原级的用法
1. 句型"as…as",表示两者相比较程度相同, 翻译成“和...一样”. 如:
The old man walks as fast as a young man. 这位老人走路与年轻人一样快.
English is as important as maths. 英语与数学一样重要.
2.句型"not as(so)…as",表示两者相比较, 前者不如后者. 如:
I'm not as tall as Jack. 我没有杰克高.
She doesn't run so fast as I. 她没有我跑得快.
3 需要注意的形容词&副词的原级用法:
①"数词+times+as+形容词&副词原级+as",翻译成”是……的几倍”。 如:
This tree is twice as higher as that one.  这棵树比那棵树高一倍.
My scores are three times as many as yours. 我的分数是你的三倍.
This road is four times as wide as that one. 这条马路的宽度是那条的四倍.
Kelly runs two times as fast as you. 凯莉跑步比你快一倍。
②"half+as+形容词&副词原级+as",(……的一半……). 如:
My English is not half as good as yours. 我的英语不如你的一半好.
This town is half as big as ours. 这个城镇有我们城镇的一半大.
③"as…as"结构中,若形容词作定语修饰可数名词单数,不定冠词a(an)应置于形容词与名词之间. 如:
English is as important a subject as maths. 英语是和数学同样重要的一门学科.
Tom is as good a doctor as my father. 汤姆是与我父亲一样好的一个医生.
This is as famous a school as ours. 这是一所与我们学校同样著名的学校.
④句型: “.....as + 形容词&副词原级 + as possible/one can”,表示"尽可能......做某事". .
We should get up as early as possible/we can.
They must finish their work as quickly as possible/they can.
⑤ "as many / few + 可数名词复数 + as"或" as much / little + 不可数名词 + as "结构,翻译成“尽可能的多/ 尽可能的少做某事”。如:
 You may borrow as many books as you can.你能借多少书就借多少。
 "Drink as much water as possible/you can," the doctor said to him.
医生对他说:"你要尽可能地多喝些水。"
You should speak as little as possible/you can.你要尽可能的少说话。
We have to make as few mistakes as possible/we can. 我们必须尽可能的少犯错误。

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