• 定冠词: • 表示独一无二的或者被认为是唯一东西的名词 • The sky is the color of jade • The moon is really bright tonight.
• 有些名词有阴晴雨雪等表现出不同状貌 • 前有形容词修饰时 • 也可以用不定冠词 • 例如: • a blue sky • a bright moon • a red sun • a half moon • a cloudless sky
• 表示特指的人或物的名词前 • 表示说话人和听话者都知道的 • The snows came. • Where are the other students?
• 第二次提到的人或者事物的前面
• It is a dog,the dog is Kitty’s.
• He must do something ,even though the something is as simple as action as opening the book.
• 由短语或者从句修饰的名词前
• The key to the safe is lost
• The restaurant where I had my dinner last week is most convenient .
• 与先前提及的事物有某种关系或者联系的名词前面 • The girl was crying for milk,but the bottle was empty. • They came near to a car,the driver was dead drunk.
• 形容词最高级,副词最高级或者序数词前面:或者前有: only,same,following ,next ,usual,wrong 等