from.1從...起,始于 She is singing from morning to night.她從早唱到晚.2離(開) Our school is two miles from the station.我們學(xué)校離車站兩英里.3從...來;出自 He comes from Shanghai.他來自上海.4(表示原料)由 Flour is made from wheat.面粉由小麥制成.to:1prep.1.向,往,到 She lives in the house to the right.她住在右邊的房子里.This road leads to Paris.這條路通往巴黎.2 (表示時(shí)間)直到,在...之前 He wrote from morning to night.他從早到晚寫東西.3 趨于;(變)成,(變)到 Things are going from bad to worse.4(表示對(duì)象)對(duì),向 Excessive drinking did harm to his health.過量飲酒損害了他的健康.5(與原形動(dòng)詞一起構(gòu)成不定式) It's very important for us to study English well.6 (用來代替不定式或不定式短語,以免重復(fù)) You can do it this way if you want to.如果你樂意的話,可以這樣做.一般的上午、下午或晚上,季節(jié)以及月或年一般用in；in January 在一月,in winter在冬季,in 1999 在1999,in the morning(afternoon,evening).在上午（下午,晚上） in a week 在一周內(nèi) 如:We watch Tv in the evening．我們晚上看電視.用某種語言 in English 穿著 in red We can tell the story in English.我能用英語講述這個(gè)故事.The girl is in red.這個(gè)女孩子穿著紅衣服.on指在某一天或某一天的上午,下午,晚上,如：on Monday,在星期一 on Sunday afternoon 在周日下午,on July 1,1999 在1999年7月日 on Monday 在周一 on Monday afternoon 在周一下午 on March 7th 在3月7日 on March 7th,1998.在1998年3月7日 on the morning of March 7th,1998.在1998年3月7日上午 表示時(shí)間和年齡用at;at six o’clock,at half past three .習(xí)慣用法：at night,at noon 比如 I get up at six in the morning．我早上6點(diǎn)鐘起床.He got married at the age of 25．他25歲結(jié)婚.