七年级英语冠词讲解+练习试题1 / 18 七年级英语冠词的用法I. 冠词的分类冠词可以分为不定冠词(a/an )、定冠词( the )和零冠词(不用冠词) 。II.冠词的用法一. 不定冠词的用法不定冠词 a (an) 表示的意思是“一个” 。a 用于辅音音素开头的词前;而 an则用于元音音素开头的词前。注意:这里讲的音素指的是发音,不是指辅音字母。例: hotel knife tool useful book uniform uncle ant eye ear English book egg apple old man elephant one-eyed man hour 1. 用于可数名词的单数形式前,表示“一”。There is an apple on the plate. a.a (an) 虽表示“一个”,但不强调数量,而是强调类别;one 则强调数量。例: I bought a computer. 我买了一台电脑。(不是收音机和电视机)I bought one computer. 我买了一台电脑。(不是两台)Would you like an ice cream? 来一客冰淇淋好吗?(不是别的食物)七年级英语冠词讲解+练习试题2 / 18 2. She gave one ice cream to them each. 她给他们每人一客冰淇淋。(不是两客)b. 表示数量对比时,要用one, 不用 a(an) 。比如: 我有一支红铅笔,但是他有三支。I have a red pencil, but she has three. (误)I have one red pencil, but she has three. (正)我只需要一美元,但他给了我两美元。I only want a dollar, but he has given me two. (误)I only want one dollar, but he has given me two. (正)2.表示一类人或物。A dog is a cute animal. 3.第一次提到某人或某物。This is an English-Chinese dictionary. A girl wants to see you. 一位姑娘要见你。4.用于专有名词前,表示不认识某人A Zhang called you just now. 一位姓张的刚才给你打电话。A Mr. Smith wanted to see you. 有位史密斯先生想要见你。七年级英语冠词讲解+练习试题3 / 18 5.表示身份、职业不定冠词用于单数名词前表示身份、职业,尤其用在作表语或补足语的名词前。例: She is a high school teacher. Her name is Li Fang. 她是一位中学教师,名叫李芳。The Whites wanted their daughter to be a musician. 怀特夫妇想要他们的女儿成为音乐家。提示 在某一时期内只有一人担任,或表示某人的头衔,则不用冠词。例: He is c...