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1、a/an 的用法,语法,名词单数变复数,a和an的用法区别:,1.a 用在以辅音音素开头的单词前。例如：a book,a desk,a teacher,a student,2.an 用在以元音音素开头的单词前。例如：an egg,an apple,an English teacher,an old car/man/woman,你知道吗？,a/an被称作不定冠词，用在单数可数名词前，表达某一个人或事物中的一个，相当于汉语的“一”，但不强调数目概念。,a/an用法的区别：,用a/an填空。1.I have _ good friend.2.She has _apple.3.Please give m
2、e _ MP4.4.Miss Zhang is _ English teacher.5.Its _ desk,and its _ old desk.6.He wants to buy _ pen and _ eraser.7.There is _ UFO.8.There is _“d”and _“s”in the word“desk”.,a,an,an,an,a,an,a,an,a,a,an,你能归纳出26个字母哪些用a,哪些用an吗？,an,a,A,B,C,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,D,总结：常见用an 的单词有：,egg,eraser,apple,orange,MP4,
