在交通工具前加介词by，但不能再有任何指示代词或冠词，否则要改换相应的介词。by taxi=in a taxi
［误］ I'm earlier today. I came here by his car.
［正］ I'm earlier today. I came here in his car.
［析］ 在交通工具前加介词by，但不能再有任何指示代词或冠词，否则要改换相应的介词。by taxi=in a taxi
by train=in a train
by bicycle=on a bicycle
by ship=on a ship
by boat=in a boat
by bus=on a bus
by plane=on a plane
by air 空运
by land 陆运
by sea 海运
on foot on horseback
by phone by letter by radio
by air mail by hand
单词：taxi的近义词、反义词、形近词辨析
taxi/cab/tax/taxpayer/fax/fox/truck/lorry/traffic/vehicle
记忆：
1. taxi [ 5tAksi ] n. 出租汽车 It’s too late to find a taxi. 太晚了，找不到出租车了。
2. cab [ kAb ] n. 出租马车, 出租汽车, 计程车 A cab can take you to the gym. 计程车可以带你到体育馆去。
3. tax [ tAks ] n. 税, 税款, 税金 vt. 对. . . 征税 No one can be free from taxes.没有人可以不交税。
4. taxpayer [ 5tAks7peiE] n. 纳税人 The government should apologize to its taxpayers if the money is wasted. 如果钱浪费了的话，政府应该向纳税人道歉。
5. fax [ fAks] n. & vt. 传真 I will send you the form by fax. 我将把表格给你电传过去。
6. fox [ fC:ks] n. 狐狸 The fox is believed to be very clever or sly.人们相信狐狸非常聪明或是非常狡猾。
7. truck [ trQk] n. 卡车, 敞棚货车 A truck can carry all the furniture to your new home. 卡车可以把所有的家具运到你的新家。
8. lorry [ 5lCri] n. 卡车(英) Lorry is the British way of saying truck. Lorry是英国人说的卡车。
9. traffic [ 5trAfik ] n. 交通, 通行 The policeman is regulating the traffic at present.警察正在指挥着交通。
10. vehicle [ 5vi:ikl] n. 交通工具, 车辆, 媒介物 His novels are a vehicle for his political views. 他的小说是他表达政治观点的媒介。
11. transportation [ 7trAnspC:5teiFEn ] n. 交通, 运输, 输送 The transportation by railroad is well developed in China. 铁路交通在中国很发达。
另类阅读：
The traffic tax is drawn from any vehicle: cars, taxis/cabs, trucks or lorries, and so on.
