A

名词 0 13

名词

n. 英语字母表的第一个字母；学业成绩得优者；表示“最好”的符号

考点牛津朗文柯林韦氏

一、字母A当名词时使用，注意复数为A’s或a’s。

二、A易混的用法是与当动词时的区分。

A is the first letter of “apple”. 名词

I have a pen. 冠词

Apple begins with (an) A. 名词

三、from A to Z的意义类似于 from the beginning to the end.

BrE /eɪ/ ; NAmE /eɪ/
(also a) (plural As, A’s, a’s BrE /eɪz/ ; NAmE /eɪz/ )
1 [countable, uncountable] the first letter of the English alphabet 字母表的第一个字母

‘Apple’ begins with (an) A/‘A’.

2 A [countable, uncountable] (music) the 6th note in the scale of C major C大调音阶中的第6个音

3 [countable, uncountable] the highest mark / grade that a student can get for a piece of work or course of study 学生在一项工作或一门课程中所能得到的最高分数或等级

She got (an) A in/for Biology.
He had straight A’s (= nothing but A’s) all through high school.

4 A [uncountable] used to represent the first of two or more possibilities 用于表示两种或两种以上可能性中的第一种

Shall we go for plan A or plan B?

5 A [uncountable] used to represent a person, for example in an imagined situation or to hide their identity 用来表示一个人，例如在一个想象的情境中或用来隐藏他们的身份

Assume A knows B is guilty. 假设A知道B有罪。

1 [countable, uncountable] the first letter of the English alphabet

2 [countable, uncountable] the sixth note in the musical scale of C major or the musical key based on this note

3 [countable] the highest mark that a student can get in an examination or for a piece of work

I got an A in French.
Julia got straight A’s (=all A’s) in high school.

→ A level

4 → an A student5 [uncountable] used to refer in a short way to one of two different things or people. You can call the second one B

A demands £500, B offers £100.

→ plan A

6 → from A to B from one place to another

get/go from A to B
Hiring a car was the best way to get from A to B.

7 →from A to Z describing, including, or knowing everything about a subject

the history of art from A to Z

8 [uncountable] a common type of blood

1.N-VAR 可变名词英语字母表的第1个字母 A is the first letter of the English alphabet.

2.N-VAR 可变名词C大调音阶中的第六音；A音 In music, A is the sixth note in the scale of C major.

3.N-VAR 可变名词（作业、考试等）甲等，优等 If you get an A as a mark for a piece of work or in an exam, your work is extremely good.

4.（用于首字母为 a 的一些单词的缩写，如 acceleration，ampère和answer） A or a is used as an abbreviation for words beginning with a, such as ‘acceleration’, ‘ampère’, or ‘answer’.

5.PHRASE 短语从一处到另一处；从甲地到乙地 People talk about getting from A to B when they are referring generally to journeys they need to make, without saying where the journeys will take them.

【搭配模式】：PHR after v

Cars are for getting people from A to B in maximum safety.
汽车用于将人们尽可能安全地从一地送往另一地。

a noun

or A /ˈeɪ/

plural a’s or as or A’s or As

1 : the first letter of the English alphabet英语字母表的第1个字母

[count]

a word that begins with an a以字母a开头的单词

[noncount]

a word that begins with a以字母a开头的单词

2 : a musical note or key referred to by the letter A : the sixth tone of a C-major scale*A音（C大调音阶的第6音或音符）；A调

[count]

play/sing an A演奏/演唱A调

[noncount]

a song in the key of A*A调歌曲

3 [count] : a grade that is given to a student for doing excellent work（学业成绩）第一等，优秀

She got an A on the exam.她考试得了个A。
He’s an A student. [=a student who gets A’s for his schoolwork]他是一个头等生。

4 [noncount] — used to refer to the first of two or more people, places, or things that are being considered（正在考虑的人、地点或事物中的）第一个，甲

If A, B, and C divide the coins equally, how many does each person get?如果甲、乙、丙三人均分这些硬币，每人获得几枚？

from A to Z

: including everything从头到尾；全部

The book is titled “Home Repairs From A to Z.”这本书名为《家庭修理大全》。

from (point) A to (point) B

: from one place to another从一地到另一地

I don’t care about the scenery. I’m only interested in getting from A to B.我不在乎风景。我就喜欢东游西逛。

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二级词汇词组

from A to Z

from (point) A to (point) B

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