prep (1)(指地點(diǎn))在……里(面)(at a point within the area，volume or shape of sth)：the highest mountain (longest river)～the world/Africa/China 世界上/非洲/中國最高的山峰(最長的河流);live～a small village/the south of France/London 住在一個小村莊里/法國的南部/倫敦;children playing～the street/the park 在街上/公園里玩耍的孩子;swimming～the pool/the river/the lake/the sea在游泳池/河/湖/海里游泳;～the corner of a room 在房間的角落里(比較：at/on the corner of the street 在大街的拐角處);sit～a chair 坐在扶手椅子上;have a stick～one's hand 手里拿著手杖;have a cigarette～one's mouth 嘴里叼著香煙;
?(2)(指動作)進(jìn)入(into)：put the papers/the photograph～one's briefcase (a drawer/one's pockets) 把文件/照片放進(jìn)公文包(抽屜/口袋里);get～the car 鉆進(jìn)汽車;go (run)～the house/the room 走(跑)進(jìn)房子/房間;throw sth～the fire/the wastepaper basket 把……扔進(jìn)火里/廢紙簍里;dip one's pen～the ink 把筆尖浸入墨水里;
?(3)a)(指時(shí)間)在(during)：～the twentieth century 在20世紀(jì);～1996/the 1990's 在1996年/20世紀(jì)90年代;～spring/summer/autumn/winter在春/夏/秋/冬季;～January/February/March 在1/2/3月;～the morning/the afternoon/the evening 在上午/下午/晚上;～the past/the future 在過去/將來;b)在……(一段時(shí)間)內(nèi)(within the space of)：He learnt to drive (finished the task/wrote the whole book)～three weeks/two months. 他用三周/兩個月學(xué)會了開車(完成了任務(wù)/寫完了全書)。Rome was not built～a day.(prov)羅馬非朝夕建成。c)在……以后(after)：He'll return～a few minutes/hours/days/months. 他將在幾分鐘/小時(shí)/天/個月以后回來。 She is going up to London～three day's time. 她三天后去倫敦。 The concert will begin～an hour from now. 音樂會一小時(shí)后開始。
?(4)構(gòu)成整體或一部分，含有(forming the whole or part of sth;contained with)：seven days～a week一個星期有七天;100 cents～a dollar 一美元有100美分;There is a cover charge included～the total. 總額里含有服務(wù)費(fèi)。
?(5)(指比率)(indicating ratio)：a slope/gradient of one～four 一比四的坡度/梯度;taxed at the rate of 12p～the pound 每一英鎊須納稅12便士;One～five of the population could not read. 有五分之一的人口不識字。
?(6)穿(戴)著(wearing clothes，colours，etc)：dressed (clothed)～rags/green衣衫襤褸/穿著綠色的衣服;～uniform/plain clothes/mourning/armour 穿著制服/便衣/喪服/盔甲;～disguise化裝;～high-heeled shoes/a silk skirt 穿著高跟鞋/絲綢裙子;a man～spectacles/a hat 帶著眼鏡/禮帽的男子;
?(7)(指環(huán)境)(indicating physical surroundings)：go out～the rain/the cold/the sun 冒雨/冒著嚴(yán)寒/頂著太陽外出;
?(8)(指狀態(tài)或狀況)(indicating state or condition)：～order/disorder/a mess 整齊/混亂/亂七八糟;be～poor health/deep poverty/trouble/great confusion 健康不佳/處于極度貧困之中/處于困境/迷惑不解;be～a hurry/a rage 匆匆忙忙/憤怒;be～danger/anger/love/retirement 處于危險(xiǎn)之中/氣沖沖/在戀愛/退休了;be～a panic/a bad temper驚恐/發(fā)脾氣 be～good spirits/pain/despair 精神振奮/處于痛苦之中/處于絕望之中;The roses are～bud/flower/bloom 玫瑰含苞欲放/盛開/盛開。They met～public/secret. 他們公開/秘密會面。
?(9)(指形式、形狀、排列或量)(indicating form，shape，arrangement or quantities)：sit (stand)～groups/rows/a circle 三五成群地/一排排地/圍成一圈地坐著(站著);a novel～five parts 分為五部分的一本小說;work～twos/threes/pairs 兩人一組/三人一組/兩人一對地工作;(hair)～a pony-tail(頭發(fā))成馬尾狀;
?(10)(指介質(zhì)，手段，材料) (indicating the medium，means，material，etc)：say sth～English/a few words 用英語說/簡單地說一說;speak～a loud/low voice 大聲/小聲地說;write～code/ink/pencil 用密碼/墨水/鉛筆寫;printed～italics/capitals 以斜體/大寫字母印刷;paint～oils 用油彩畫畫;a statue～bronze 青銅制作的塑像;go up～the lift 乘電梯上去;pay～cash 用現(xiàn)金支付(比較：pay by check 用支票支付);
?(11)關(guān)于，在……方面(with reference to;regarding)：be alike (differ)～character/appearance 性格/外表一樣(不同);be backward～the techniques 在技術(shù)方面落后;be strong (weak)～English/mathematics英語/數(shù)學(xué)好(不行);～principle/theory/practice 原則上/理論上/實(shí)際上;equal～strength/price 力量/價(jià)格相等;lacking～courage/common sense 缺乏勇氣/常識;a country rich/poor～minerals 礦產(chǎn)豐富/貧乏的國家;be blind～one eye 一只眼失明;four feet～length/depth/diameter 長度/深度/直徑為四英尺;There is no point～not telling her. 瞞她是沒有道理的。He saw no harm～letting her read those books. 他認(rèn)為讓她讀那些書沒有害處。
?(12)(指職業(yè)，活動)(indicating sb's occupation，activity，etc)：～the army/navy/air force 在陸軍/海軍/空軍服役;～business/insurance/politics/journalism/computers在商界/保險(xiǎn)業(yè)/政界/新聞界/電腦業(yè)供職;
?die/be killed in action 陣亡：He was killed～action in France. 他在法國陣亡。
?in that 因?yàn)椋篢he budget is unrealistic～that it disregards increased costs. 這個預(yù)算不現(xiàn)實(shí)，因?yàn)樗鼪]有考慮成本的增加。
?adv (1)(指位置)在里面(within a particular area or volume;inside)：run/walk/go/come/fall～跑進(jìn)/走進(jìn)/走進(jìn)/進(jìn)來/掉進(jìn);drink coffee with milk/sugar～喝加牛奶/糖的咖啡;call/ask/have/let sb～叫/請/讓/讓某人進(jìn)來;get/move/push/put/throw sth～把某物弄/搬/推/放/扔進(jìn)來;
?(2)(指人)在家(工作地點(diǎn))(at home or at a place of work)：Nobody was～when they called. 他們?nèi)グ菰L時(shí)家里沒有人。 Let's stay～tonight. 今晚我們待在家里吧。The president isn't～today. 校長今天不在。
?(3)(車、船)到達(dá)，進(jìn)站((of vehicles，ships，etc)coming to;arriving at)：Is the train～yet? 火車進(jìn)站了嗎? The plane is due～at 6 o'clock. 飛機(jī)應(yīng)該6點(diǎn)鐘到。
?(4)(指莊稼或畜類)從田里收回(從牧場趕回)(brought back from the fields)：get～the crops 收割莊稼;The wheat crop is safely～. 小麥完好無損地收進(jìn)來了。 The cows will be～for milking in half an hour. 半小時(shí)后奶牛就會被趕回來擠奶。
?(5)(指潮水)漲到最高位((of the tide)at or towards its highest point on land)：It's twelve o'clock. The tide must be～. 12點(diǎn)鐘了，潮水一定漲上來了。 The tide is coming～. 正在漲潮。
?(6)(指信、明信片等)送(收)到(delivered to the destination;received)：Applications must be～by May 31. 申請書必須5月31日前寄到我處。 Papers should be～on Friday afternoon. 論文應(yīng)于星期五下午交來。
?(7)時(shí)髦，流行(fashionable，popular)：Short skirts are～again 短裙又流行了。Bright colours are～this spring. 今春流行亮麗色。
?(8)(水果，魚等)上市，可買到的((of fruit or fish，etc)on sale or obtainable)：New potatoes aren't～yet. 新土豆還沒上市。 Apples will soon be～. 蘋果很快就上市了。
?(9)當(dāng)政，上臺(elected to office)：Labour is～and the Conservatives are out. 工黨執(zhí)政，保守黨在野。The union president has been～sine 1995. 這位工會主席從1995年當(dāng)選一直干到現(xiàn)在。If the Workers' Party comes～at the next election，a lot of industry will be state-owned. 要是工黨在下次大選中獲勝上臺，許多工業(yè)就會收歸國有。
?(10)(指一些球類運(yùn)動)落在界內(nèi)，進(jìn)球(inside the boundary lines so as to score a goal)：His service was～. 他的發(fā)球落在界內(nèi)。 The ball bounced～.球彈落在界內(nèi)。 The ball is～—we've got a goal! 球進(jìn)了——我們得了一分!
?be in for (infml)1)將參加：I'm～for the 100 meters/the high jump/an examination.我將參加100米賽跑/跳高比賽/一項(xiàng)考試。2)將經(jīng)歷：I'm afraid we're～for a storm/a summer shower. 恐怕我們要遇上暴風(fēng)雨/陣雨了。 be～for a nasty shock/a surprise/a difficult time/trouble 會大吃一驚/非常吃驚/日子不好過/遇到麻煩;
?be in for it 可能受到懲罰：Stop that noise at once or you'll be～for it. 趕快安靜下來，不然你們會受懲罰的。
?be/get in on 參與，了解(infml)：Most of the staff want to be～on the new pension scheme. 大多數(shù)職員想?yún)⑴c新的養(yǎng)老金計(jì)劃。He is～on her secret. 他知道她的秘密。
?be/come/go in and out of 經(jīng)常進(jìn)出：During the holiday the children were～and out of the house all day. 在假日里孩子們一天到晚進(jìn)出不斷。
?be (well) in with sb 與……要好：He is well～with his boss/the Board of Directors. 他跟老板/董事會的關(guān)系很好。
?have/get it in for sb想報(bào)復(fù)，對……懷有惡意(infml)：After John beat Ted in a fight，Ted always had it～for John. 約翰打了特德之后，特德總想報(bào)復(fù)。
?day/year in，day/year out 日復(fù)一日/年復(fù)一年;For a whole year I have worked day～，day out，without a holiday. 整整一年我日復(fù)一日地工作，沒有假日。
?adj (1)里面的，往里的(being within or leading toward inside)[作attrib]：an～patient 住院病人;go through the～door 穿過向里開的那扇門;
?(2)流行的，時(shí)髦的(popular;fashionable)[作attrib]：an～thing to do 做時(shí)髦的事;the～place to dine 時(shí)髦的餐館;
?n (1)執(zhí)政者(a person，group that is in power，in office)[C，通常pl] the～s and the outs 執(zhí)政黨與在野黨;The election made him an～. 選舉使他上了臺。
?(2)寵信(favour)[C]：He has an～with the boss. 他得到老板的寵信。 enjoy some sort of～with the manager 得到經(jīng)理的某種賞識;
?the ins and outs (of sth) 1)詳情，細(xì)節(jié)：know all the～s and outs of the plan/a problem/legal procedures 了解這個計(jì)劃/一個問題/司法程序的詳情; 2)(道路的)曲折，(河流的)迂回：the～s and outs of a road 道路的彎彎曲曲;
?【辨異】1)in(指時(shí)間)與at的區(qū)別見AT。 2)in(指地點(diǎn))與at和on的區(qū)別見AT。