a,an,the的用法讲解及练习冠词是虚词，本身不能单独使用，也没有词义，它用在名词的前面，帮助指明名词的含义。

英语中的冠词有三种，一种是定冠词（the Definite Article），另一种是不定冠词（the Indefinite Article），还有一种是零冠词（Zero Article）。

an,/a是不定冠词，仅用在单数可数名词前面，表示“一”的意义，但不强调数目观念。

a用在以辅音（指辅音音素）开头的词前，an用在以元音（指元素音素）开头的词前。

the是定冠词，修饰特指名词，翻译成“这个”。

如果泛指某物,用a/an,具体指某物的话，用the.注意：（1）当我们使用an时，条件有三：①这个名词的读音必须是以元音音素开头--即它的音标的第一个音素是元音，而不是说它是以元音字母开头。

②它必须是个可数名词。

③它还必须是个单数名词。

我们常常见到这类用法：an university一所大学; an hour一个小时;an orange一只桔子an engineer一位工程师an ordinary man一个普通人an honest person一位诚实的人（2）定冠词在句子中，既可以用于可数名词前，也可以用于不可数名词前；既用在可数名词的单数形式前，也用在可数名词的复数形式前。

从表达意义上讲，它既可表达this,that之意义，也可表达these,those之意义。

一．不定冠词的用法：1．用于可数名词单数前，表示某一类人或事物。

This is a ruler.He’s a student.2．指人或事物，但不具体说明何人或何物。

There are seven days in a week.We have three meals a day.3．表示“一个”，但数的概念没有one强。

There’s a tree on the hill.He has an interesting book.4．指某类人或事物中的任何一个。

An elephant is bigger than a horse.A car runs faster than a bike.用于某些固定词组中。

a lot of\a bit\have a rest\have a cold\a kind of\a piece of\have a good time6.首次提到的人或物。

二.定冠词的用法（1）特指某（些）人或某（些）事物。

例如：The book on the desk is mine.（2）指双方都知道的人或事物。

例如：Open the door,please.请开门。

（3）用在世界上独一无二的事物前。

例如：The sun is bigger than the moon.太阳比月亮大些。

但这些名词作为描绘性定语时，可用不定冠词。

例如：Look!A red sun is rising.瞧！一轮红日正在升起。

（4）用在序数词和形容词最高级前。

例如：The first island is the biggest of the three.第一个小岛是三个中最大的。

（5）用在用普通名词构成的党派，国家等专有名词以及江河、海洋、山脉、群岛、海峡、海湾等专有名词前。

例如：They will visit the Great Wall next week.（6）用在形容词前表示一类人，the+形容词指的是一群人，是一种复数含义，所以其后动词应用复数形式。

例如：The old are sick.（7）用在姓名复数形式前表示一家人。

例如：The Smiths have moved to London.（8）用在某些习惯用语中。

例如in the morning,on the left ,the day before yesterday,all the same(9)弹奏西方乐器前面要用定冠词，东方乐器则不用。

例如：Play the piano,play Erhu三．零冠词即不用冠词的情况：1．专有名词和不可数名词：China,Class One如特指可与冠词连用。

2．泛指的复数名词前:Books are my best friend.3．在星期(on Monday)、月份(in March)、季节(in Summer)、节日(in Christmas)前4．一日三餐(have breakfast)、球类(play basketball)、学科(maths)、语言(in English)名词前5．职务、头衔、称呼前:Doctor,I am not feeling well.6．名词前已有指示代词、物主代词或不定冠词时7．在某些固定短语中I.在下列句中空白处填入适当冠词，不需用冠词处划/。

1．There is__picture of ___ elephant on__wall．2．This is___ useful book.I've read it for __ hour．3. ___ elephant is much heavier than___horse．4.___ doctor told him to take __ medicine three times ___day.5．Let's go out for_______walk．6．It's too hot．Open_______door，please．7．There is ___ woman over there. ____ woman is Meimei's mother．8．_______sun rises in_______east．9．_____Changjiang River is_____longest river in ___ China．10．Are you going to do it_______second time？11．Washington is_______capital of_______USA．12．___Turners are living at the end of___Turner Street．13．He joined the army in___spring of_____1995．14．____old man is_____teacher．He likes playing____basketball after____supp er．15．After I had _____ quick breakfast，I hurried to school．16．Are ____ sheep kept by___ farmers for producing ___ wool and _____meat？17．They went to ___ People's Park,but we both went to _____ People's Cinema yesterday．18．I often watch_______TV in_______evening．19．_______day of _____ December 20，1999is Monday．20．Tomorrow is_______Christmas Day and my father and I went to choose______ _Christmas tree today．21．I think ____ maths is more important than an other subject．22．He often goes to_______school by_______bike．23．What does this_______word mean，_____Father？24．What_______important news！II.选择填空。

1．—Does Jim have_______ruler？—Yes，he has_______．A．an；some B．a；one C．a；／D．any；one2．There is_____old bike．_____old bike is Mr Zhao's．A．an；The B．the；An C．a；The D．the；The3．____apple a day keeps the doctors aw ay．A．The B．A C．An D．Two4．—How many books do you have？—I have_____book．That's_____English book．A．a；an B．a；one C．one；an D．one；one5．At that time Tom was_______one-year-old baby．A．a B．an C．the D．／6．_______tiger is_______China．A．The；a B．A；the C．The；from D．The；the7．We can't see_______sun at_______night．A．the；the B．the；／C．a；／D．／；／8．_______useful book it is！A．What an B．How a C．What a D．What9．One afternoon he found_______handbag．There was_______“s”on the corner of_______handbag．A．a；an；the B．a；a；the C．an；an；an D．the；a；a10．_______old lady with white hair spoke_______English well at_____meeting．A．An；an；a B．The；／；an C.The;／;a D．The；／；the11．____Great Wall is ___ longest wall in the world．A．A；a B．The；the C．A；the D．The；a12．___new bridge has been built over Huangpu River．A．The；a B．A；／C．A；the D．An；the13．____woman over there is____popular teacher in our school．A．A；an B．The；a C．The；the D．A；the14．He used to be ____ teacher but later he turned _____ writer．A．a；a B．a；the C．／；a D．a；／15．They made him_______king．A．a B．the C.an D．／16．His father is_______English teacher．He works in our school．A．a B．an C．the D．／17．Is he_______American boy？A．an B．a C．one D．／18．Does Tom often play _____football after____school？A．／；／B．／；the C．the；／D．a；／19．They passed our school____day before yesterday．A．an B．one C．a D．the20．Australia is_______English-speaking country．A．a B．an C．the D．／21．She has_______orange skirt．___skirt is nice．A．a；The B．an；The C．an；A D．the；The22．This is_______apple．It's_______big apple．A．an；a B．a；the C．a；an D．an；the23．Look at_______horse over there．A．a B．an C．the D．／24．Don't play_______basketball here．It's dangerous．A．a B．an C．／D．the25．There is_______old woman in the car．A．／B．the C．a D．an26．Beijing is _____ beautiful city.It's ____ capital of China．A．a；a B．the；the C．／；the D．a；the27．Shanghai is in_______east of China．A．／B．an C．a D．the28．I've been a student there for nearly two and_______half years．A．a B．an C．the D．／29.Bill is_____English teacher．He likes playing_____football．A．a；the B．an；the C．a；／D．an；／30．The museum is quite far．It will take you half__hour to get there by_______b us．A．an；／B．an；a C．a；／D．／；／练习：一、选择正确的答案1.I am___(a,an)student.2.There is____(a,an)elephant in the zoo.3.You are____(a,an)good boy.4.I have____(a,an)orange.5.Miss Grant is____(a,an)ugly teacher.6.This is_____(a,an)new book.7.Please take____(a,an)umbrella.8.Close____(a,an,the)door,please.9.My father is____(a,an)doctor.10.There is_____(a,an)orange on the table.11.He gives me_____(a,an)sticker.12.What is___(a,an, the)biggest bird in the world?13.I have ____orange .____orange is very sour.( a, an,the)14.My father is____(a,an,the)man.15._____(A,An,The)moon is in the sky.16.There’s____(a,an,the)apple on the table.17.____(a, an, The)blackboard in our classroom is big.18.He likes to play____(a,an,the)piano.19.Monday is ____(a, a, the )first day of the week.20.My favorite animal is____(a,an,the)cat.二、在需要的地方填入适当的冠词，不需要的地方填‘/’。