1.用於被動語態的句子中,表示動作的執行者,意為“被;由”。 He was praised by the teacher.他受到了老師的表揚。 the book was written by Lu Xun.這本書是魯迅寫的。
2.表示方式、方法、手段等,後常接無冠詞的名詞或動名詞,意為“透過;靠;用”。 Don"t judge a person by appearances. 勿以貌取人。 He made a living by teaching.他以教書為生。
3.表示時間,意為“到……時(為止”或“不遲於……”。 He ought to be here by now.他現在應該在這兒了。 By the time he was ten, he had learnt about 1,000 English words.到十歲時,他已學了約一千個英語單詞。
4.表示(增減)程度,尺寸數量等,意為“至……的程度”。 the bullet missed me by two inches.那子彈以兩英寸之差未擊中我。 the rope needs to be longer by two feet.這繩子需要再長兩英尺。
5.表示交通路線或工具,後接名詞不用冠詞,意為“乘;坐”。 go by bus / plane / train 乘汽車(飛機、火車)去 travel by land / sea / air 陸上(海上、空中)旅行
1.用於被動語態的句子中,表示動作的執行者,意為“被;由”。 He was praised by the teacher.他受到了老師的表揚。 the book was written by Lu Xun.這本書是魯迅寫的。
2.表示方式、方法、手段等,後常接無冠詞的名詞或動名詞,意為“透過;靠;用”。 Don"t judge a person by appearances. 勿以貌取人。 He made a living by teaching.他以教書為生。
3.表示時間,意為“到……時(為止”或“不遲於……”。 He ought to be here by now.他現在應該在這兒了。 By the time he was ten, he had learnt about 1,000 English words.到十歲時,他已學了約一千個英語單詞。
4.表示(增減)程度,尺寸數量等,意為“至……的程度”。 the bullet missed me by two inches.那子彈以兩英寸之差未擊中我。 the rope needs to be longer by two feet.這繩子需要再長兩英尺。
5.表示交通路線或工具,後接名詞不用冠詞,意為“乘;坐”。 go by bus / plane / train 乘汽車(飛機、火車)去 travel by land / sea / air 陸上(海上、空中)旅行