for: (1) prep. （表示时间、距离）计，达 word that shows how far or how long 例句 I have waited for three hours. 我等了三小时。 They were silent for a while. 他们沉默了一会儿。 (2) prep. 开往，向 word that shows where someone or something is going 例句 She left Tianjin for Beijing. 他离开天津上北京去了。 (3) prep. 给，与，适于 word that shows who will get or have something 例句 This is a present for you. 这是给你的礼物。 (4) prep. 当作 as; as being 例句 I took him for his brother. 我把他当作是他的兄弟。 (5) prep. 因为，由于 by reason of, on account of; because of 例句 We could not see for the fog. 因为有雾，我们看不见。 They did not draw the conclusion for the following reason. 由于下述理由他们没有作出结论。 (6) prep. 就而言 word that shows whom you are talking about 例句 It is dangerous for a small child to cross the road alone. 小孩子自己过马路危险。 He is tall for his age. 他小小年纪，个子倒挺高。 （就他的年纪来说，他的个子算是高的。 ） (7) prep. 为了，供 word that shows why you are doing something 例句 It is very cold for October. 十月里这样的天气真是很冷。 I have got some picture books for you to look at. 我有一些让你看的书。 No house was big enough for him to live in. 没有那么大的房子可供他住。 We work hard for socialism. 我们为社会主义努力工作。 (8) prep. （比赛或战斗时）代表，代，替 on the same side in a sport or fight 例句 They would run for the United States. 他们将代表美国去参加赛跑。 (9) prep. 价格，交换 word that shows how much something is 例句 I want to change this for that. 我想用这个换那个。 I paid two dollars for the book. 为这本书我付了两元钱。 (10) prep. 赞成，支持 word that shows you like an idea 例句 Some people were for the strike and others were against it. 有些人赞成罢工，另一些人反对。 (11) conj. 因为 because; on account of the fact that 例句 I am thirsty, for the sun is hot. 我由于天热而口渴。 of: (1) prep. （表示所有，要占有）的 word that shows what you have and own 例句 Its the custom of the country. 这是这个国家的习惯。 Beijing is the capital of China. 北京是中国的首都。 (2) prep. 从，在其中 out of,from among 例句 A cow is a kind of animal. 牛是动物的一种。 He is one of my best friends. 他是我的最好的朋友之一。 (3) prep. 包含有；有 containing,having 例句 Pass me a glass of milk. 递给我一杯牛奶。 He lives in a house of three rooms. 他住在一所有三个房间的房子里。 (4) prep. 由制成 made from 例句 The bridge is made of stone. 这座桥是用石头造的。 (5) prep. 关于 about,concerning 例句 I have heard of the news. 我听说过这个消息。 It was he who told me the news of the victory. 是他告诉我这胜利的消息。 (6) prep. 叫做；系 which is (called) 例句 The city of Harbin is a big city. 哈尔滨市是一个大城市。 (7) prep. 从；来自 from 例句 He is a man of humble origin. 他是一个出身微贱的人。 He was born of a good family. 他生于一个好家庭。 (8) prep. 表示地点 word that shows place 例句 He lives at the end of the road. 他住在马路的尽头。 (9) prep. 表示和别人的关系 word that shows what you are to another person 例句 He is beloved of all. 他受到大家的爱戴。 (10) prep. 表示解除，剥夺，免除 indicating relief,deprivation,riddance 例句 I was robbed of my watch. 我手表被抢了。 The doctor cured the sick man of his disease. 这医生治好了这病人的疾病。 (11) prep. 表示原因 indicating cause 例句 We are proud of our motherland. 我们为我们的祖国而骄傲。 You ought to be ashamed of yourself. 你应为你自己感到羞耻。 (12) prep. 表示区分，包含，分量 indicating partition,inclusion, measure 例句 Yesterday I bought a ton of coal. 昨天我买了一吨煤 to: (1) prep. 到；向；往 word that shows where someone or something is going,etc. 例句 We walked to town. 我们走路进城。 Point to the blackboard. 指着黑板。 That road leads to Beijing. 那条路通向北京。 (2) prep. （表示接受者）给 word that shows who is receiving something 例句 Please give the book to me. 请把书给我。 I gave the candy to Mary. 我把糖果给了玛丽。 (3) prep. （表示几点差几分）到；缺 word that shows how many minutes before the hour 例句 Its ten minutes to six. 六点差十分。 (4) prep. 远至；直到 as far as; until 例句 I shall stay to the end of June. 我会一直待到六月底。 She read the book from the beginning to the end. 这本书她从头到尾全都看了。 (5) prep. （表示地点）在；到 word that shows where 例句 Fasten it to the wall. 将它系到墙上。 (6) prep. （表示原因）为 word that shows why 例句 He came to help me. 他帮我的忙来了。 (7) prep. （表示变化）成为 word that shows a change 例句 He was brought to poverty. 他变穷了。 The sky changed from blue to grey. 天空由蓝变灰。 (8) prep. 表示发展到的地步 (expressing some point reached or extent) 例句 He is an Englishman to core. 他是彻头彻尾标准的英国人。 I got wet to the skin. 我全湿透了。 (9) prep. 表示比较、相比 (expressing comparison) compared with 例句 He is quite rich to what he once was. 比起从前，他现在是富裕多了。 (10) prep. 表示加上、附合、配合 expressing addition or accompaniment with 例句 Add three to five. 五加上三。 We danced to the music. 我们配合着音乐跳舞。 (11) prep. 表示结果或事情引发的情状 expressing a result or a resulting condition 例句 He tore it to pieces. 他把它撕成一片片。 The train slowed to a stop. 火车缓速而后停下来。 (12) prep. 构成动词不定式 用作名词；用作形容词；用作副词；其他用法 (used as a sign of the infinitive) a) noun use; b) adjectival use ;c) adverbial use;d) other uses (13) adv. 来回地 to and fro, backwards and forwards 例句 She swung to and fro on the swing. 她在秋千上摆来摆去。 about: (1) adv. 大约；差不多 a little more or less than; nea