a
determiner
weak/ə/ukstrong/eɪ/weak/ə/usstrong/eɪ/(alsoan)adeterminer(NOT PARTICULAR)
A1
used before anounto refer to asinglething orpersonthat has not beenmentionedbefore,especiallywhen you are not referring to aparticularthing orperson
一（个）（用于名词前，表示未曾提及的，尤其是非特指的人、事、物）
I'veboughtacar.我买了辆汽车。
She's got aboyfriend.她交了个男朋友。
There was asuddenloudnoise.突然发出一声巨响。
What ashamethat you couldn't go to theparty.你不能去参加聚会，太遗憾了。
Iheardachildcrying.我听见有个孩子在哭。
Is he afriendofyours(= one ofyourfriends)?他是你的朋友吗？
A1
used to say whattypeof thing orpersonsomething or someone is
（表示人或物的类型）
Shewantsto be adoctorwhen shegrowsup.她长大了想当医生。
This is a verymildcheese.这是一种很清淡的奶酪。
Expertsthinkthepaintingmay be a Picasso(= by Picasso).专家们认为这幅画可能出自毕加索的手笔。
A1
used tomeanany or every thing orpersonof thetypeyou are referring to
（泛指所指类别中的任何一个）
Can yourideabike?你会骑自行车吗？
Acheetahcanrunfasterthan alion.猎豹能跑过狮子。
Ateacherneedsto have a lot ofpatience.做老师需要很有耐心。
used before someuncountablenounswhen youwanttolimittheirmeaningin some way, such as whendescribingthem morecompletelyor referring to oneexampleof them
（用于一些不可数名词前，在某种意义上起限定性作用）
I only have alimitedknowledgeofSpanish.我只懂一点西班牙语。
He has agreatloveofmusic.他酷爱音乐。
There was afiercenessin hervoice.她的声音中透着股凶气。
A2
used before somenounsofactionwhen referring to oneexampleof theaction
（用于某些行为名词前）一下；一次
Take alookat this, Jez.杰兹，看一下这个。
I'm just going to have asnack.我正要去洗个澡。
There was aknockingat thedoor.有人敲门。
A2
used when referring to aunitorcontainerof something,especiallysomething youeatordrink
（尤指饮食的）一份
I'dloveacoffee.我想来杯咖啡。
All I had forlunchwas ayogurt.午饭我只喝了一杯酸奶。
A2
used before the first but not the second of twonounsthat are referred to as oneunit
（用于被视为一体的两个名词中的第一个词前）一副；一套；一组
acupandsaucer一副杯碟
aknifeandfork一副刀叉
A2
used before some words thatexpressanumberoramount
（用于某些表示数量的词前）
a fewdays几天
abitofwool一点羊毛
a lot ofmoney很多钱
used infrontof a person'snamewhen referring to someone who you do notknow
（用于不认识的人名前）有个，某一（个）
There's a Ms Evans toseeyou.有位埃文斯女士找你。
used infrontof someone'sfamilynamewhen they are amemberof thatfamily
（用于某人的姓之前，表示其为该姓家族成员）
Is that a Wilson over there?那边那个人是威尔逊家的吗？
used before thenameof adayormonthto refer to oneexampleof it
（用于日期、月份前）一个
Mybirthdayis on aFridaythisyear.今年我的生日是个星期五。
It's been a verywetJune.今年6月一直都特别潮湿。
- What is theusualpayfor ajoblike this one?
- Suddenly adogranout into theroadinfrontof us.
- Thecustomersaid she'd like thiscoatif it was anicercolour.
- Colin told ajokeabout apostman, but it wasn't veryfunny.
- Shall Ibringabottleofwinewith me?
adeterminer(ONE)
A1
one
一
a hundred一百
a thousand一千
adozen一打
There were three men and a woman.有三位男士和一位女士。
A2
used between afractionand aunitofmeasurement
（用于分数和度量单位之间）
halfamile半英里
aquarterof akilo1/4公斤
threequartersof anhour三刻钟
sixtenthsof a second0.6秒
A2
used when saying how often somethinghappensin acertainperiod
（指某事在特定时间段内发生的频率）每一（个），一
Take onetabletthreetimesaday.一日三次，每次一片。
Iswimonceaweek.我每星期游一次泳。
A2
used when saying how much someoneearnsor how much somethingcostsin acertainperiod
（指特定时间段内的收入或费用）一，每
Sheearns$100,000 ayear.她一年挣10万美元。
Myplumbercharges£30 anhour.管子工每小时收我30英镑的维修费。
Ipay£25 aweekfor myparkingpermit.我的停车证费用是每周25英镑。
Grammar
A/anandthe
A/an and the are articles. They are a type of determiner and they go before a noun.…A/anandthe:meaning
A/an and the are articles. They are a type of determiner and they go before a noun.…When do we useaand when do we usean?
In speaking, we use a /ə/ before a consonant sound:…How do we pronouncethe?
We pronounce the in two ways depending on whether the sound which comes after the is a vowel or a consonant:…When do we use articles?
…A/anandthe: typical errors
We don’t use the with plural nouns when we are referring to things in general:…