1. U 视力，视觉　 ability to see; vision
2. U 看见，瞥见　 action of seeing sb/sth
3. U 视域，眼界　 range within which sb can see or sth can be seen
4. C 情景，景象　 thing to be seen, or worth seeing, especially sth remarkable
5. P 风景，名胜　 interesting buildings, places, features, etc. of a place or district
6. P 瞄准器，观测器　 device that one looks through to aim a rifle, etc. or to observe sth through a telescope, etc.

　check one's ～　检查视力
　control one's ～　控制视力
　destroy sb's ～　毁坏某人的视力
　lose one's ～　失去视力，失明
　preserve one's ～　保持视力
　recover one's ～　恢复视力
　rely upon one's ～　依靠视力
　bear the ～ of　看见…
　catch ～ of　看到…
　come into ～　进入视野，出现
　fix one's ～ on　把目光固定在…
　get ～ of　看到，发现…
　get out of ～　看不见…
　hate the ～ of　讨厌看到…
　have ～ of　看见…
　keep ～ of　将…保持在视线内
　lose ～ of　看不到…
　make a ～ of oneself　出洋相，使自己惹人注目
　miss the ～ of　没看见…
　recover ～ of　又看到…，又发现…
　see the ～s of　游览…
　set one's ～s high　有远大抱负
　stand the ～ of　看见…
　take a ～ at the sun　观测太阳
　far ～　远视
　good ～　视力好
　keen ～　敏锐的目光
　long ～　远视
　near ～　近视
　poor ～　视力差
　short ～　近视
　appalling ～　骇人听闻的景象
　beautiful ～　美景
　bright ～　一道靓丽的风景线
　common ～　常见的情景
　familiar ～　熟悉的情景
　frightening ～　可怕的情景
　front ～　正面
　funny ～　好笑的情景
　grand ～　壮观景色
　magnificent ～　壮观景色
　memorable ～　难忘的情景
　perfect ～　惹人注目
　pleasant ～　令人愉快的情景
　principal ～s　主要名胜
　sorry ～　悲伤的情景
　telescopic ～　望远镜瞄准器
　terrible ～　可怕的情景〔场面〕
　ugly ～　丑恶的情景
　unexpected ～　出乎意外的景象
　play music at ～　见乐谱即演奏，视奏
　at first ～　乍一看，初看起来
　fall in love at first ～　一见钟情
　at (the) ～　一看见
　at the ～ of sb's distress　一看到某人痛苦的样子
　faint at the ～ of blood　一见血就昏倒
　beyond the ～　一望无际
　by ～　见过，见到
　know sb by ～　跟某人只是面熟
　for sb's ～　给某人看
　in ～　看见
　in ～ of land　看见陆地
　on ～　一看见
　out of ～　看不见
　within ～　看见，在视线范围内
　～s of the West Lake　西湖风景

　His sight is not very good.　他的视力不是很好。
　His sense of hearing is poor but his sight is excellent.　他的听力很差，但他的视力特别好。
　She has good sight for a woman of 80, she never uses glasses.　对于一个80岁的妇女来说，她的视力是很好的，从不戴眼镜。
　It was my first sight of it.　这是我第一次看到它。
　I can't bear the sight of it.　看到它我受不了。
　As I looked through the book, several printing mistakes arrested my sight.　我翻阅这本书时发现了几个印刷错误。
　The sight of smoke alarmed the night porter.　旅馆夜班接待员看到冒烟就惊恐起来。
　The sight of the birds suggested the idea of flying machines.　看见了鸟启发了制造飞行器的想法。
　The view burst upon our sight.　那景象突然出现在我们眼前。
　The sight of such desolation was burnt into his soul.　那种荒凉的景象使他毕生难忘。
　She saw some amazing sights at the zoo.　她在动物园里看到一些珍禽异兽。
　The sunset was a very beautiful sight.　那次落日真是一幅美景。
　What a sight you look in those old clothes!　你穿上那些旧衣服的样子可真怪。
　The room is a sight. Clean it as soon as you are free.　这房间太乱了，你一有时间就把它打扫一下。
　One man who knows his area is a damn sight better than a truck load of documents.　一个熟悉本行业务的人总比装满一卡车本行的资料要有用得多。
　I confess I wanted a sight of them too.　我承认我也需要很多。
　It cost him a sight of money.　这花了他一大笔钱。
　I like the sights here.　我喜欢这儿的风景。
　I am seeing the sights of London.　我在游览伦敦名胜。
　She went out to see the sights of Shanghai.　她去上海观光了。
　The rifle has a new sight.　这支步枪上有一个新的瞄准器。
　There are front and rear sights on the gun.　那杆枪有前后瞄准器。

 ♣ at (first) sight〔on sight〕
　乍一看；一看到…就　as soon as sb/sth is seen
　At first sight the house appeared to be empty.　乍看起来，这房子似乎空无一人。
　They fell in love as soon as they met, it was love at first sight.　他们一见面就坠入情网，真是一见钟情。
　She can play music at sight.　她一见到乐谱就能演奏出来。
　They were told to shoot looters on sight.　他们奉命见到打劫者立即射击。
 ♣ at (the) sight of
　一见到…（就）　as soon as sb/sth is seen
　His anger rose at the sight of the villain, but he calmed himself.　一见那个恶棍，他就火冒三丈，但还是使自己冷静了下来。
　The dog didn't draw back at the sight of the strangers.　这狗看到这些陌生人并不后退。
　She fainted at the sight of a tiger.　她一见到老虎就晕倒了。
　At the sight of the snake, the girl drew back.　一看到蛇，那女孩就往后退缩。
 ♣ catch sight of
　发现，突然看见　start seeing, or get a glimpse of
　Finally he caught sight of the young man's light overcoat in the distance.　最后他总算在远处看见了那个年轻人穿的浅色外套。
 ♣ in〔into〕 sight
　看得见，被见到　in one's range of vision, or in one's awareness
　There was not a ship in sight.　看不到一艘船。
　A change of wind brought the little boat into sight.　风向变了以后，那条小舟就清晰在望了。
　Suddenly the leading car in the race burst into sight.　突然，比赛中的那辆领先的车出现了。
 ♣ in sb's sight〔the sight of〕
　〈正〉在某人看来，依某人的意见　 in sb's opinion or view
　All men are equal in the sight of God.　上帝对所有人都一视同仁。
 ♣ keep in sight
1. 看住… remain where one can see (sb/sth)
　Follow that woman and keep her in sight all the time.　要跟着那个女人，一直盯着她。
　The aircraft climbed so rapidly that it was difficult to keep it in sight.　飞机很快爬高，肉眼难以盯住。
2. 了解到… remain aware of (sth)
　That is irrelevant; we must keep the main purpose of this meeting in sight.　那毫不相干，我们要牢牢记住这次会议的主要目的。
 ♣ keep sight of
1. 看住… remain where one can see (sb/sth)
　The policeman asked me to keep sight of him.　那个警察要我一直盯着他。
2. 了解到… remain aware of (sth)
　You must keep sight of one fact; your life is in danger.　有一件事你必须明白，你有生命危险。
 ♣ lose sight of
1. 忽视；忘记 overlook; fail to take account of; forget (an aim)
　Under no circumstances should we lose sight of our main objective.　在任何情况下，我们都不能忘记自己的主要目标。
　They lost sight of the reasons for which they went to war.　他们忽略了他们去打仗的原因。
　He was so interested in the TV programme that he lost sight of the time.　他兴趣盎然地观看那个电视节目，竟连时间都忘了。
　No matter how rich and famous he became, he never lost sight of the fact that he was born in the slums.　无论他已多么富有和出名，他从不忘记自己出生于贫民窟。
　These grand schemes are all very well, but we mustn't lose sight of the fact that somebody has to pay for them.　这些宏伟的计划当然十分好，但我们别忘了，得有人要为它们出钱。
　The reason for which they went to war was soon lost sight of.　他们卷入战争的理由很快就被遗忘了。
　The importance of learning foreign languages must not be lost sight of.　学习外语的重要性一定不要忽视。
2. 看不见 no longer be able to see
　We lost sight of him in the crowd.　我们在人群里看不见他了。
　The place was so crowded, we soon lost sight of him.　这地方人那么多，一会儿我们就看不见他了。
　At a distance you lose sight of the town.　在远处，你看不见这个城市。
　We soon lost sight of the boat in the dense fog.　我们很快就看不见那条淹没在浓雾中的船。
　We watched the plane go higher and higher until we lost sight of it.　我们看着飞机越飞越高，直到看不见为止。
　At last the islanders lost sight of the vessel.　最后，岛上的居民看不见那只船了。
　In times of difficulty we must not lose sight of our achievements, must see the bright future and must pluck up our courage.　我们在困难的时候，要看到成绩，要看到光明，要提高我们的勇气。
　The glider was soon lost sight of in the clouds.　滑翔机很快消失在云层里。
3. 失去联系 lose touch
　I have lost sight of my old friend for many years.　我已多年没有老友的音讯了。
　We have lost sight of him since he went abroad.　在他出国以后，我们就失掉了联系。
　I have lost sight of him entirely.　我和他完全失掉了联系。
 ♣ out of sight
　看不见，在视野之外　outside sb's range of vision
　Stay out of sight, she mustn't see us.　躲开，不可让她见到我们。
　She stayed her tears until her lover was out of sight.　她忍住眼泪，直到她的爱人走远了看不见时，才哭了出来。
　The piece of paper fell onto the surface of the river and drifted away out of sight.　这张纸掉到了河面上，漂走看不见了。
 ♣ sight unseen
　事前未得以检查〔了解〕　without an opportunity for previous inspection or understanding
　You should never buy a motorbike sight unseen.　买摩托车时，事前未检查可千万不要买。
　I would be leery of committing my company to employ hundreds of Indian workers, sight and skill unseen.　在对几千名印度工人的技术情况事先还不了解时，我是不会随便让我的公司雇用他们的。
 ♣ take a sight
　用瞄准器〔观测器〕瞄准〔观测〕　aim or observe using a sight or sights
　The coach told me to take a careful sight before firing.　教练叫我仔细瞄准再开火。
　They took a sight with a compass.　他们用罗盘观测。

 ♣ at (first) sight, at (the) first sight of
　这两个短语意思不同：前者意为“乍一看”，含义是“仅凭表面而未深入探究”， first前没有定冠词the，多位于句末；后者意为“一见到…（就）”，强调两个动作的连续性， first前常有定冠词the，可置于句末，亦可置于句首。另外， at (the) sight of常可转换为as soon as引导的时间状语从句。例如：
　
 ♣ catch sight of, catch a sight of
　这两个短语意思有差别：前者意为“一下子看到…”，后者意为“突然看了…一眼”。例如：
　
 ♣ in sight of, in the sight of
　这两个短语意思不同：前者意为“能看见”，而后者意为“在某人看来”。例如：
　
 ♣ sight, prospect, scene, scenery, view
　参见scene条。

　那列火车很快就看不见了。
　［误］ The train was soon out of the sight.
　［正］ The train was soon out of sight.
　［析］ out of sight意为“在视野之外，看不见”， sight前不用定冠词the.

1. vt.看见，发现　 get a view of, especially after a time of looking; see for the first time
2. vt. & vi.（用仪器）瞄准〔观测，察看　〕 aim or observe sth (by using a sight or sights)

　～ a sail　发现一艘船
　～ a target　瞄准目标
　～ land　看见陆地
　～ carefully　仔细地瞄准
　～ along　沿…观测
　～ along the edge　沿着边目测
　～ with　用…观测

　The hunter sighted carefully before firing his gun.　那猎人在开枪以前仔细地瞄准。
　He sighted in on the hill with his compass.　他用罗盘对准那座小山。
　Sight along the edge to see if it's straight.　顺着边目测，看看直不直。
　After five days at sea, we sighted land.　我们在海上航行了五天后见到了陆地。
　Crewmen aboard the tanker sighted a ship in distress off the coast of Senegal.　油轮上的船员们在塞内加尔的近海发现了一艘遇难船。
　He sighted a target.　他瞄准了目标。
　He is sighting his camera.　他在调照相机的焦距。
　Several rare birds have been sighted in this area.　有人曾在这一地区看见几种稀罕的珍禽。

　［派生词］ sightless adj.无视力的；盲的‖sightly adj.悦目的；好看的
　［同义词］ n. eyesight, vision, glance, glimpse, look, peek, peep, view; display, scene v. behold, discern, glimpse, observe, see
　［词源］　中古英语siht<古英语(ge)siht（视力，视觉）