| 释义 |
DET. 限定词1.?（用于首次提及或泛指某人或某物）一（个）You use a or an when you are referring to someone or something for the first time or when people may not know which particular person or thing you are talking about. 双语例句例： A waiter entered with a tray bearing a glass and a bottle of whisky. 一名服务员端着一个放有一只玻璃杯和一瓶威士忌酒的托盘进来了。 例： He started eating an apple. 他开始吃苹果。 2.?（用于指一类人或物，不需要特指）任何一（个）You use a or an when you are referring to any person or thing of a particular type and do not want to be specific. 双语例句例： I suggest you leave it to an expert. 我建议你把它留给专家来处理。 例： Bring a sleeping bag. 带个睡袋来。 3.?一种（用于前有形容词或后有修饰语的不可数名词前）You use a or an in front of an uncount noun when that noun follows an adjective, or when the noun is followed by words that describe it more fully. 双语例句例： The islanders exhibit a constant happiness with life. 这些岛民表现出一种对生活的持久的幸福感。 4.?一种（用于物质名词前，特指某物的种类或成分）You use a or an in front of a mass noun when you want to refer to a single type or make of something. 双语例句例： Bollinger 'RD' is a rare, highly prized wine. Bollinger“RD”是一种罕见的、非常名贵的葡萄酒。 5.?（用在量化词组中，如a lot, a little, a bit等）一......You use a in quantifiers such as a lot, a little, and a bit. 双语例句例： I spend a lot on expensive jewellery and clothing. 我在昂贵的首饰和衣服上开销很大。 6.?（指某人或某物是一个团队、阶层或类型中典型的成员或部分）一（个）You use a or an to refer to someone or something as a typical member of a group, class, or type. 双语例句例： Some parents believe a boy must learn to stand up and fight like a man. 一些家长认为一个男孩必须学会像男子汉一样奋起战斗。 7.?（用于某一天、某一月份或某节日前，特指在该天、该月或该节日发生的事件）一个You use a or an in front of the names of days, months, or festivals when you are referring to one particular instance of that day, month, or festival. 双语例句例： The interview took place on a Friday afternoon. 该面谈是在一个星期五下午进行的。 8.?（用于说明某人的职业）一位 , 一个You use a or an when you are saying what someone is or what job they have. 双语例句例： I explained that I was an artist. 我解释说我是一位艺术家。 9.?一（代替one，尤与量词hundred, hour, metre和分数词half, quarter, third合用）You use a or an instead of the number 'one', especially with words of measurement such as 'hundred', 'hour', and 'metre', and with fractions such as 'half', 'quarter', and 'third'. 双语例句例： more than a thousand acres of land. 一千多英亩的土地。 10.?每一（用于速率或比率的表达中）You use a or an in expressions such as eight hours a day to express a rate or ratio. 双语例句例： Prices start at $13.95 a yard for printed cotton. 印花棉布开价为13.95美元一码。
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