初中語法講解：名詞與冠詞1-3
[00:17.47]John Denver,a famousAmerican singer,diedin an aircraft crash.作同位語
[00:51.88]冠詞
[01:02.68]冠詞分為不定冠詞和定冠詞兩種不定冠詞a, an定冠詞the
[01:25.42]1 不定冠詞的用法不定冠詞有a和an兩種形式，a用在一般名詞之前
[01:36.74]an用在發(fā)音上以元音音素開頭的詞之前(不是以元音字母開頭的詞)
[01:49.19]a housean houra universityan umbrella
[02:52.90]a bookan apple
[02:58.13]1)第一次提到某人或某物時(shí)，比如There's a ball underthe chair.
[03:10.19]Mrs. Li is a mathteacher.
[03:15.68]2)代表某一類人或事物比如，A horse is a usefulanimal.
[03:32.55]Even a child cananswer this question
[03:42.16]3)表示“每一”的意思比如，Take this medicinethree times a day.
[03:57.75]4)用于固定詞組搭配，比如，have a resta long time
[04:13.24]a few a littlea lot of a bitgo out for a walk
[04:32.56]2 定冠詞的用法
[05:14.53]1)特指某個(gè)或某些人或事物，或指談話雙方都知道的人或事物，或復(fù)述上文提過的人或事物
[05:28.75]They 're playingbasketball.The ballis hers.
[05:43.65]Would you please ta-ke the book to Mr.Liu?
[05:59.54]There is a table bythe window.On thetable there are somebooks.
[06:26.50]2)用在世界上獨(dú)一無二的事物或?qū)Ｓ忻~或方位名詞等前面
[06:37.10]Liu Beibei wants tovisit the SummerPalace.
[06:48.46]The sun sets in thewest.
[07:10.69]3)用在單數(shù)可數(shù)名詞之前，表示某一類人或事物
[07:19.56]The computer is auseful machine.The elephant is big-ger than the horse.
[07:55.76]4)用在序數(shù)詞，形容詞及副詞最高級、only修飾的名詞前
[08:09.23]This is the firsttime he visitsEurope.
[08:23.98]She's the best teac-her they have evermet.
[08:41.16]She's the only teac-her who has been toboth America andBritain.
[09:01.67]5)用在樂器的名稱前My daughter likes toplay the piano.
[09:45.97]6)和某些形容詞連用，表示某一類人the poor the youngthe wounded
