as

A 開頭單詞專八核心詞高考詞匯詞源字典

音標(biāo)發(fā)音

英式音標(biāo) [?z; ?z]
美式音標(biāo) [?z,?z]
國際音標(biāo) [?z]
英式發(fā)音
美式發(fā)音

基本解釋

adv. 如同，像……一樣
prep. 作為；以……身份；當(dāng)作；像，如同；當(dāng)……時(shí)
conj. 因?yàn)椋捎?；?.....時(shí)，隨著；以……的方式，像；正如；雖然，盡管
n. 阿斯（古羅馬銅幣）

詞源解說

12世紀(jì)晚期進(jìn)入英語，直接源自古英語的alswa，意為的確如此。

同根派生

as相關(guān)詞

用法辨析

adv. (副詞)

as用作副詞時(shí)主要用來表示比較,意思是“像…一樣；如同”。可以單獨(dú)使用，但更多的是用在as...as結(jié)構(gòu)中，其中第一個(gè)as是副詞，其后可接形容詞或副詞,也可接其他成分，as前可有狀語。第二個(gè)as可以是介詞,也可以是連詞。as用作副詞時(shí)還可以指事物以同樣的方式發(fā)生,意思是“和…一樣”。
as...as結(jié)構(gòu)多用于肯定式，偶爾也可用于否定式。表示同樣意思的否定式多用so...as。as...as結(jié)構(gòu)用于否定句時(shí)多用于口語，側(cè)重“像…一樣”；so...as結(jié)構(gòu)則多用于書面語，側(cè)重“像…那樣”。
as...as結(jié)構(gòu)表示的是同級比較，第一個(gè)as后的形容詞或副詞不可用比較級，必須用原級，比較的對象亦須屬同類。
as...as結(jié)構(gòu)表示數(shù)量或程度時(shí)，可用于“as much+(不可數(shù)名詞+) as”或“as many+(可數(shù)名詞復(fù)數(shù)+) as”結(jié)構(gòu)。
修飾as...as結(jié)構(gòu)的常見詞語有nearly,almost,just,exactly,half,quite,表示倍數(shù)或次數(shù)的形容詞，“數(shù)詞+times”等。這些修飾語都放在as...as結(jié)構(gòu)之前。
使用as...as結(jié)構(gòu)時(shí)，若第一個(gè)as后的名詞是單數(shù)可數(shù)名詞并有形容詞修飾，則應(yīng)使用“as+ adj.+ a/an+ n. ”結(jié)構(gòu)，即不定冠詞應(yīng)位于形容詞和名詞之間。第二個(gè)as后面的名詞或代詞的格不同，意思也不同。
as...as結(jié)構(gòu)中后一個(gè)as用作連詞時(shí)引導(dǎo)的從句常為省略句，省略從句中的動(dòng)詞可使主句的意義得到加強(qiáng)；反之，重復(fù)從句中的動(dòng)詞則可使從句的意義得到強(qiáng)調(diào)。
使用as...as結(jié)構(gòu)時(shí)，在一定的上下文中可以省去其中的一個(gè)。

英漢例句

用作副詞 (adv.)

She is as tall as her mother.
她和她母親一樣高。

用作介詞 (prep.)

As a child,he lived in Japan.
他小的時(shí)候住在日本。

用作連詞 (conj.)

引導(dǎo)時(shí)間狀語從句

I was coming in as he was going out.
我進(jìn)來的時(shí)候,他正出去。

引導(dǎo)原因狀語從句

As rain has fallen,the air is cooler.
由于下了雨，空氣比較涼爽。

引導(dǎo)讓步狀語從句

Child as is Paul,he knows enough to tell good from bad.
保爾雖是個(gè)孩子，卻已懂得區(qū)分好壞。

引導(dǎo)比較狀語從句

Run as fast as you can.
你能跑多快就跑多快。

引導(dǎo)方式狀語從句

When in Rome,do as the Romans do.
入鄉(xiāng)隨俗。

用于插入語

As I said in my last letter,I am taking the exam in July.
我上次信里已經(jīng)說過，我七月份要考試。

as更多例句

詞組短語

用作副詞 (adv.)

～+形容詞+as+名詞

as alike as chalk and cheese 本質(zhì)上完全兩樣的，截然不同的
as big as life (畫像等)與原物一樣大的；千真萬確的
as black as a raven 像烏鴉一般黑
as black as a thunder 面帶怒容
as black as coal 黑得像煤一樣

as更多詞組

英英字典

劍橋英英字典

used in comparisons to refer to the degree of something
used to describe the purpose or quality of someone or something
(BECAUSE) because
(WHILE) during the time that
(LIKE) in the same way
(ALTHOUGH) although

柯林斯英英字典

If something happens as something else happens, it happens at the same time.
You use as to say how something happens or is done, or to indicate that something happens or is done in the same way as something else.
You use as to introduce short clauses that comment on the truth of what you are saying.
You can use as to mean "because" when you are explaining the reason for something.
You use the structure as...as when you are comparing things.
As is also a conjunction.
You use as...as to emphasize amounts of something.
You say as it were in order to make what you are saying sound less definite.
You use expressions such as as it is, as it turns out, and as things stand when you are making a contrast between a possible situation and what actually happened or is the case.
You use as when you are indicating what someone or something is or is thought to be, or what function they have.
If you do something as a child or as a teenager, for example, you do it when you are a child or a teenager.
You use as in expressions like as a result and as a consequence to indicate how two situations or events are related to each other.
as ever&rarrsee ever
as a matter of fact&rarrsee fact
as follows&rarrsee follow
as long as&rarrsee long
as opposed to&rarrsee opposed
as regards&rarrsee regard
as soon as&rarrsee soon
as such&rarrsee such
as well&rarrsee well
as well as&rarrsee well
as yet&rarrsee yet
You use as for and as to at the beginning of a sentence in order to introduce a slightly different subject that is still connected to the previous one.
You use as to to indicate what something refers to.
If you say that something will happen as of a particular date or time, you mean that it will happen from that time on.
You use as if and as though when you are giving a possible explanation for something or saying that something appears to be the case when it is not.
an ancient Roman unit of weight approximately equal to 1 pound troy (373 grams) 373
American Samoa

專業(yè)釋義

商業(yè)

見票照付(的)，即期(的)

電子、通信與自動(dòng)控制技術(shù)

業(yè)馀電臺 (amateur station)
安
自治系統(tǒng) (autonomous system)

計(jì)算機(jī)科學(xué)技術(shù)

位址空間 (address space)
高級系統(tǒng) (advanced system)
鑑認(rèn)伺服器 (authentication server)
安培秒
自動(dòng)選擇 (automatic selection)
自動(dòng)同步器 (automatic synchronizer)
自動(dòng)交換 (automatically switching)
輔助儲存器 (auxiliary storage)
輔助儲存 (auxiliary store)

化學(xué)

丙烯腈/苯乙烯樹脂
丙烯腈-苯乙烯樹脂
不對稱因數(shù)
不對稱因子

地球科學(xué)

高層云