a
美 [?]
英 [e?] ![]()
詞形變化
復(fù)數(shù):a’s 復(fù)數(shù):A's 復(fù)數(shù):As英漢雙解
1. | (用于可數(shù)名詞或單數(shù)名詞前,表示未曾提到的)一(人、事、物)used before countable or singular nouns referring to people or things that have not already been mentioned |
a man/horse/unit 一個(gè)人;一匹馬;一個(gè)單位 | |
an aunt/egg/hour/x-ray 一位姑母;一顆雞蛋;一小時(shí);一張 X 光片 | |
I can only carry two at a time. 我一次只能帶兩個(gè)。 | |
There's a visitor for you. 有位客人找你。 | |
She's a friend of my father's(= one of my father's friends) . 她是我父親的朋友。 |
2. | (用于前有形容詞或后有短語的不可數(shù)名詞前)used before uncountable nouns when these have an adjective in front of them, or phrase following them |
a good knowledge of French 精通法語 | |
a sadness that won't go away 揮之不去的悲愁 |
3. | 任何一;每一any; every |
A lion is a dangerous animal. 獅子是猛獸。 |
4. | (表示為某一群體或職業(yè)中的一員)used to show that sb/sth is a member of a group or profession |
Their new car's a BMW. 他們的新轎車是輛寶馬。 | |
She's a Buddhist. 她是佛教徒。 | |
He's a teacher. 他是教師。 | |
Is that a Monet(= a painting by Monet) ? 那是莫奈的畫嗎? |
5. | (用于視為一體的兩個(gè)名詞之前)used in front of two nouns that are seen as a single unit |
a knife and fork 一副刀叉 |
6. | (用于某些數(shù)字前,代替 one)used instead ofone before some numbers |
A thousand people were there. 那里有一千人。 |
7. | (用于價(jià)格、數(shù)量、比率等)一,每一used when talking about prices, quantities and rates |
They cost 50p a kilo. 其價(jià)錢是一公斤 50 便士。 | |
I can type 50 words a minute. 我每分鐘能打 50 個(gè)單詞。 | |
He was driving at 50 miles an hour. 當(dāng)時(shí)他正以每小時(shí) 50 英里的速度駕車。 |
8. | 像(某人)的人;…式的人物a person like sb |
She's a little Hitler. 她是個(gè)小希特勒。 |
9. | (用于某人姓名前,表示說話者不認(rèn)識此人)有個(gè)used before sb's name to show that the speaker does not know the person |
There's a Mrs Green to see you. 有位格林太太要見你。 |
10. | (用于一星期中某天的名稱前,表示具體某一天)used before the names of days of the week to talk about one particular day |
She died on a Tuesday. 她是在某個(gè)星期二去世的。 |
英漢解釋
n. | 1. 英文字母表的第一字母 2. 【數(shù)學(xué)】第一已知數(shù) 3. (學(xué)業(yè)成績的)優(yōu)等 4. 表示“第一”的符號 5. 腺苷 6. 吸光率 |
art. | 1. 〔普通可數(shù)名詞第一次提到時(shí),冠以不定冠詞主要表示類別,有時(shí)則兼含“一”的概念〕 |
na. | 1. 〔在數(shù)量概念上,說明表示時(shí)間,距離,重量及數(shù)目的名詞〕一 2. 〔與數(shù)量形容詞,數(shù)詞等連用而表示一個(gè)整體單位〕 3. 〔與某些復(fù)數(shù)名詞連用而仍表示一個(gè)單位〕 4. 〔與序數(shù)詞或形容詞最高級結(jié)合共同限定所修飾的名詞〕 5. 〔表示同類事物中的代表〕任何一個(gè)[種] 6. 同一的,相同的 7. 一(副) 8. 〔抽象名詞用作普通名詞,表示類別,例證〕 9. 〔用于專有名詞前,以整體概括個(gè)體,表示類似的一個(gè)或某一個(gè)〕 10. 每(...),在...內(nèi),按(...而論),換(得) 11. 〔口語〕一客 |
例句
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