冠词---
定冠词the
1、特指和再次提到ThisisthebookIwant.
2、序数词及形容词最高级前Heisthelastonetocome.
3、用于指独一无二的自然界现象，或表方位，左右等名词之前
Turntotheleft/Turnleftandyouwillfindthebookstore.
但是space不加Ourearthtravelsthroughspace.
4、与某些形容词或分词连用，表一类人或物therich,thepoor,theyoung,theold,thesick,thedead,theinjured,thewounded,theemployed,theliving
5、在乐器名称前Canyouplaythepiano/theviolin/theguitar?
6、在山脉、江河、湖海、岛屿前ChinaisontheeastofthePacificOcean.
7、由普通名词构成的表示国名，组织名，姓氏名等专有名词前
thePeople’sRepublicofChinatheTangDynasty,theGreatHallofthePeople,8、表说话人与听话人共同知道，共同所指的东西
Ilookedunderthebedandfoundnothing.
9、by和计量单位名词之间要有the:bythedozen/pound/hour/thousand/day
10、发明创造的东西表类别
Doyouknowwhoinventedthetelephone/computer?
11、习惯用法Heisthetallerofthetwo.Iledthechildbythehand.
不定冠词a,an
1、半元音（辅音）auniversity,auniform,ausualthing,anumbrella,anhour,anhonor,anhonestmans,h,x,m,f,r
2、抽象名词具体化success,surprise,pity,honor,smoke
It’sapitythatyoucannotcome.Youareasuccess.
3、不可数名词前表一份、一杯、一阵、一种acoffee/tea/fog/rain/snow/wind
Therewasaheavyrainduringthenight.Twoteas,please.
4、序数词前加不定冠词表示“又一”。asecond,athird
Doitasecondtime,andI’msureyouwillsucceed.
5、表“某一”(acertain)AMr.Smithwantstoseeyou.
6、amostBeijingisamostbeautifulcityintheworld.
不用冠词/零冠词
1、物质名词，抽象名词，复数可数名词，专有名词
2、在球类，棋类，一日三餐
但是特指或具体指某顿饭时要+the:ThebreakfastIatethismorningwasbig.
有形容词修饰时用a.Ihadabigbreakfastthismorning.
3、表独一无二的头衔、职位时chairman,mayor,boss,secretary,head,leader,
Hewaschosenmonitoroftheclass.Hewasmadeheadoftheteam.
但是Themonitorisgoingtodeliveraspeechthismorning.
4、在节日、星期、月份、季节前onNewYear’sDay,onFriday,onOctober1st,inDecember,insummer,atChristmas,onMayDay但是the
mid-AutumnFestival,theSpringFestival如果季节、月份被修饰inthewinterof1997,onaFriday
5、音译地名组成的街道，广场，公园，旅馆和大学等前
BeijingUniversity,