辨析seenoticeobservewatch.doc
词语辨析
glance, glare, stare, watch, notice, see, look, observe 这几个词都有“看”的意思，但含义略有不同。
glance意为“瞥一眼”，强调看得很快；glare意为“怒视”，强调看的时候带着强烈的不满情绪；stare意为“凝视”，强调看的时间长；watch意为“监视”，强调看的时候集中注意力；notice意为“注意到”，多指无意中注意到；see指看见，强调看的结果；look单纯指看的动作，不强调结果；observe 意为“观察”，强调看的时候认真关注事物发展变化的过程。
【即学即用】请用以上单词的适当形式填空。
(每词限用一次)1. Have you ______ that he was red with anger when you said that to him?2. May I have a ______ at your copy of English Weekly?3. He likes to ______ his bike being repaired.4. He was lost in thought while ______ at the old photo.5. I came in when you were playing chess with others. Didn’t you _____ me?6. The teacher instructed the students to ______ what he was doing carefully.7. He ______ over the classroom and found it was very crowded.8. He banged his fist onto the desk and ______ at her angrily.Key：1. noticed2. look3. watch4. staring5. see6. observe7. glanced8. glared以下这些短语都有“与……有联系、有关”的含义：be linked to / with，be related to，be associated with，be connected with / to, have something to do with它们在意义上有着细微的区别：link指连环式的连接，或用其他接合物或其他方式连接，还可指一事物与另一事物的联系或关系；relate指人与人有亲戚或婚姻关系，也指人或物之间的实际或假想的联系；associate 指人与人友好和平、平等地联合在一起，用于物时，指两事物因历史或其他原因，很自然被人们联系在一起，即产生联想；connect 指两事物在某一点上相连接，但彼此又保持独立。
动词类词义辨析
动词类：1“看”look看的动作/ see看的结果; watch观察/observe为了研究进行的观察; Notice注意catch sight of看见/ stare好奇地看/ glare瞪着看Glance瞅见/glimpse瞥见see a film watch TV2“说”telll sth to sb.=tell sb sth告诉的内容talk with sb about sth强调说话者之间的交流Say sth诉说的内容speak in English说的语言whisper sth to sb 耳语Inform sb of sth 通知某人某事reason /talk/persuade sb into doing sth 说服某人做某事Bargain讨价还价chat聊天repeat重复explain解释warn警告remind提醒Discuss 讨论debate辩论figure 指出declare宣布claim自称mention 提起admit 承认deny 否绝describe描述announce 公布introduce 介绍complain抱怨3“叫”cry哭叫call叫shout大喊scream尖叫moan呻吟sigh叹气quarrel大吵4“问”ask 询问interview 采访express表达question审问5“答”answer回答respond回应(用其他方式回应) reply回复6 “听”listen to听的动作hear听的结果pick up收听overhear无意听到7“写”dictate听写write sth 写describe描写drop a line 写信draw画take down/write down写下，记下8“拿/放”take拿走bring拿来hold举着carry扛，挑（无方向性）fetch拿来拿去lift举Put放lay 铺/放置pull拉/push推9“抓”take hold of 抓着seize紧抓grasp 握住scratch 抠10“打”hit一次性的打击beat不间断的打击strike突然的击打/突然想到blow吹刮attack攻击11“扔”throw扔drop掉放弃错过fall 倒下无意掉下来wave 招手shake摇12“送”send寄送deliver递送give给offer 主动给予see off给某人送行13“摸/抱”touch摸/fold折叠/embrace拥抱/ hug抱/hold 握in one’s arms14“踢/碰”kick踢/knock敲/ tip 轻敲15“行”walk run climb jump skip 单腿跳slip溜come/go enter进入move搬迁drive开车ride 骑fly crawl 匍匐前进16“坐”sit down be seated seat oneself take a seat/ stand站，耸立/ lean斜靠17“睡/休息”lie /on one’s back/ on one side/ on one’s stomach stay in bed have a rest take a nap打盹be asleep bend turn over翻身rest18“笑”smile 微笑（不出声）laugh burst into laughter burst out laughing19“哭”cry shed tears 留泪weep呜咽地哭sob抽泣burst into tears /burst out crying20“找/查”find找到look for正在找过程find out查明discover/explore 发现/探索hunt for search for seek / seek for in search of寻找Search sb 搜身search sp. for sth 为某物而搜寻某地Check检查，核实examine 考察发现问题/体检test检测，检验inspect视察21“穿”put on 动作wear穿戴have on试穿be dressed in 穿的状态make-up化装get changed换衣服be in red Take off 脱remove 去除22“吃/喝”eat/drink sip吮吸have a meal have supper toast tastetreat sb to请某人吃help oneself to 随便吃23“得”get obtain acquire获得知识和技能gain possess24“失”lose 丢了be lost /be missing人错过失踪，不见gone不见（物）great loss die die off相继死去die away 逐渐消失25“有”have 有own是自己的conquer征服occupy占有=possess26“无”nothing left the remaining thing disappear be missing /gone27“增/减”rise / go up /drop人主动抬价raise /bring down /reduce increase/decrease28“买/卖”buy purchase afford pay pay off pay for sell on sale bargainBill / cheque / cash/ credit card notes/ coins discounts29“存在/消失”come into being exist appear survive live show turn upDisappear die die out pass away be out of sight30“变化”develop improve become grow go+ bad /wrong/ sour /without（negative adj.）turn + colour change /change into reform31“认识的过程”feel sense guess suppose wonder doubt know /learn realize understand remember be familiar with recall recite apply to32“成功/失败”make it succeed make progress come true realize one’s dream win lose fail to do failure defeat suffer loss beat turn sth. Into reality 33“努力”try /manage make efforts attempt do ones best do as much as one can to do34祝贺congratulations on sb celebrate observe 庆祝get together 聚会35赞美/批评praise think highly of / blame sb for sth/ sb is to blame criticize /scold sb. for sth. have a low opinion of sb Speak ill of36喜/恶like love be fond of be keen on be crazy about adore be into prefer enjoy in favor of Dislike hate be awful/disgusting ignore turn off 37判断think believe consider find feel conclude infer doubt38到达arrive at reach return to get to stay in sp visit leave leave for on one’s way to upon one’s arrival on doin g sth39受伤hurt injured wound cut kill drown bleed get burnt suffer from suffer a loss40损坏damage destroy ruin break down be broken crash41修复repair rebuild restore fix recover oneself42支持/反对agree disagree accept receive refuse turn down be against elect vote for/ against43 做饭cook wash cut chop boil fry steam make mix clean brush cover uncover cooker44 建议advise suggest recommend urge propose demand persuade 说服45 花费sth/doing sth+cost sb+spend+ in doing sth Sb+afford +n/to do sth It +take some t ime/ money/energy +to do sth sb+ pay+$ for sth. at one’s expense46 省/存钱save /save up set aside put away spare no effort/ time47 参加take part in join /join in attend compete in/ for/against48控告accuse sb. of charge sb. With49 救治help /help out save /rescue sb from sth. Treat过程/ cure 结果sb. Of sth aid sb in doing sth / to do sth help sb with sth assist sb in doing sth50敬佩admire respect show respect for/to adore envy /be jealousy in honor of51逃避ran away escape from flee hide52 阻止/禁止prevent / keep/ stop sb. From doing sth forbid doing sth. Ban prohibit53 对付/处理handle / do with / deal with /tackle /overcome sth solve settle54 效仿copy imitate learn from learn54 爆发/发生come about happen to take place break out burst out go off explosion55安装/装备fasten fix set equip be armed with 用什么武装be equipped with装备有56 追求pursuit ran after seek after chase catch up with赶上keep up with跟上57 想/考虑think of 考虑/+as把什么看成think about想起consider think over仔细考虑be concerned 担心be considerate towards sb.58 打算plan / intend / design to do be going to do /be about to do /will do59 似乎/好象seem appear look like as if as though60 开办/关闭open start set up close/close up end close down名词类“1假期vacation holiday spring break ask for leave be on holiday have two days off2旅游trip journey tour voyage travel tourist passenger go camping/picnicking/hiking3职务人员clerk secretary passer-by friend minister manager waitress guest host hostess Assistant customer adult neighbor relative patient /vet staff crew nurse teacher Conductor tailor sailor inventor gardener guard4餐馆/定餐/就餐inn restaurant kitchen menu bill order tip fork and knife reserve /book table Taste delicious salad dash vegetables fruit tray napkin 5诊所/看病/服药clinic hospital take one’s temperature take medicine/pills have a fever/flu/headache doctor physician surgeon specialist patient6车站/机场airport on board miss the train/bus catch a train meet sb.7身体部位arm head hair brain waist back shoulder pulse wrist8意志will courage patience determination faith effort confidence ambition energy9才能/品质talent gift ability potential intelligent promising smart stupid careful proud Strict honest cold serious easy-going learned knowledgeable10优缺点advantage disadvantage strength weakness11目标aim goal intention purpose belief faith12方式means method way manner approach13身体素质strong weak pale sick ill be well keep slim/ fit cut weight/put on weight14图表photo picture graph drawing table line/bar graph pie chart draw a sketch 划草图15文章reading translation essay poem paper novel/fiction article magazine newspaper journal 日志diary日记Files form make a list of16课堂class course lecture example reason message notes words phrase scholarship degree Subject question trouble difficulty grades read comment marks17 学校活动match game activity hold a meeting /debate /speech/ ceremony18建议/观点advice suggestion idea proposal view recommandation19气候/天气climate weather storm windy cloudy rainy snow hot/cold/freezing/heat/warmth20交通by train/bus /boat bike on the train/bus /a bike drive a car ride a bike give sb. a lift/ride21习惯habit custom get used to regular有规律的（形容词）practice惯例（名词）22感觉sight hearing touch smell sense23情感feeling emotion anger delight sadness sorrow24 财富money possessions wealth belongings fortunes treasure diamond be rich/well-off25 运动比赛on the playground on the track and filed pitch event game match sports player Coach judge jogging weightlifting play volleyball/soccer/26衣服clothes, cloth, clothing clothes统指各种衣服，谓语动词永远是复数，cloth指布，为不可数名词clothing 服装的总称，指一件衣服用a piece of, an article of 27事件incident, accident incident指小事件, accident指不幸的事故形容词类1人的各种感受乐happy delighted to one’s joy pleased amused悲sad unhappy painful bitter平静calm quiet silent/still peaceful烦bother bored be fed up with震惊surprised astonished shocked /amazed怕in fear be frightened /scared /afraid失望desperate disappointed hopeless be depressed满意be satisfied with /be content to do生气Annoyed angry disgusting burst into rage2 表程度的副词类narrowly/ Nearly/ almost hardly/ hard extremely/ very very/ quite Accidently/ once in a while occasionaly/ once far / by farFarther/ further better/ worse be well/ good however/ therefore/so/thus 易考的近义词组Run/ manage grow/ plant leave/remain fit/ suit/ matchHit/ beat/strike meet/ satisfy touch /feel play /performer Contain/ hold /seat/ fill lie/sit/locate help/work/ doFall/ sink/ drop matter/ problem /trouble/ money/ accountCause/ reason that’s why/ that’s because because/ since,as/ forLast/ continue keep/ stay/ treat/ cure/ operate separate/ divide Stand/ bear/tolerate/hold turn/become/go change/vary/rangeProvide/supply/offer/ give/send。
辨析seenoticeobservewatch
辨析see notice observe watch, look at①look (at) 意味着集中注意力地看，是有意的，强调动作.例如：The old lady was looking at him from head to foot 这位老夫人从头到脚地看着他.②see强调结果，意为“看见、看到”.例如：I looked but saw nothing. 我看了，但什么也没看见.③watch表示所看事物的变化、移动和发展.例如：We watched that boy swim. 我们观看那个男孩游泳.[注意]i. look at和watch的区别在于：look at 注意的是它后面的宾语，watch注意的是它后面宾语的举动.例如：I am looking at the boy. 我在注视这孩子.I am watching the boy. 我在注视这孩子的举动.ii. look at, see, watch都可跟不带to的动词不定式或现在分词作宾语补足语例如：We looked at the children walk up the hill. 我们望着孩子们上了山.（强调动作的全过程）We looked at the children walking up the hill. 我们望着孩子们在上山.（强调动作在进行之中）④see表“看见、看到”时，一般不用进行时态.see还作“看望；送行”讲，这时可用进行时.例如：I’m seeing him tomorrow . 我明天去看他. We’re going to see him home tomorrow. 我们打算明天送他回家. [注意]根据习惯选用see和watch.看电视用watch，看电影用see .如：Did you watch TV last night昨晚你看电视了吗Have you seen the film 你看过这部电影吗⑤notice“看到，注意到，觉察到”；偶而看到细小的但可能是重要的事情.例如：Did you notice anything unusual你觉察出有任何异样的情况吗⑥observe“观察”；从不同的角度长时间地看并研究.例如：observe the behave-iour of birds 观察鸟的习性/ observe stars all one’s life一生致力于观察星象.1. Several possible buyers have come to the house.A. lookB. observeC. viewD. watch解：答案为 C.该题意思是“几个可能是买主的人来看过房子”.observe, watch含有“观察”的意思，look是不及物动词，不能直接跟宾语.2. They the train until it disappeared in the distance.A. sawB. watchedC. noticedD. observed解：答案选B. 这句话的意思为“他们注视着火车直到它消失在远方”.； saw意思是“看见”noticed“注意到”； observed “注意到，观察”，都强调结果，只有watched “观察”强调动作的延续.。
感官动词的用法
感官动词的用法感官动词的用法1.see, hear, listen to, watch, notice等词，后接宾语，再接省略to的动词不定式或ing形式。
前者表全过程，后者表正在进行。
句中有频率词时，以上的词也常跟动词原形。
注释:省略to的动词不定式--to do是动词不定式，省略了to,剩下do，其形式和动词原形是一样的，但说法不同。
see sb do sth 看到某人做了某事see sb doing sth 看到某人在做某事hear sb do sth 听到某人做了某事hear sb doing sth 听到某人在做某事以此类推...I heard someone knocking at the door when I fell asleep. (我入睡时有人正敲门,强调当时正在敲门)I heard someone knock at the door three times. (听到有人敲门的全过程)I often watch my classmates play volleyball after school. (此处有频率词often)（了解）若以上词用于被动语态，须将省略的to还原：see sb do sth----sb be seen to do sthhear sb do sth----sb be seen to do sth以此类推...We saw him go into the restaurant. → He was seen to go into the restaurant.I hear the boy cry every day. → The boy is heard to cry every day.2.感官动词look, sound, smell, taste, feel可当系动词，后接形容词。
He looks angry.His explanation sounds reasonable.The cakes smell nice.The dishes taste delicious.The silk feels smooth.注意：如果加介词like构成词组,则后不可接形容词，而接名词或代词：sound like 听起来像...look like 看起来像...He looks like his mother.That sounds like a good idea.It sounds like great fun.It smells like a flower.It tastes like salt.3.如何判断look是实义动词还是感官动词?当look理解为"看起来"时,是感官动词,后接形容词.The naughty boys broke the window.The teacher looked angry.当look理解为"看"或者与其它词构成词组时,是实义动词,需要用副词修饰.The teacher looked anrily at the naughty boys.(A)感官动词(及物动词)有：see/notice/look at/watch/observe/listen to/hear/feel(Vt)/taste(Vt)/smell(Vt)(B)连系动词(含感官不及物动词)be/get/become/feel/look/sound/smell/taste/seem/ appear/grow/turn/prove/go/run用法一、look, sound, smell, taste, feel,这五个动词均可作连系动词，后面接形容词作表语，说明主语所处的状态。
see的同义词辨析
see的同义词辨析see有看见;明白;了解等意思，那么你知道see的同义词有哪些吗?下面店铺为大家带来see的同义词及辨析，希望对大家的学习有所帮助!see同义词：look, see, watch, observe, witnesssee同义词辨析：这些动词均有"看"之意。
look 侧看"重"的动作。
see 指看见。
watch 指用眼睛跟随某物，以便对每一个变化、运动等进行观察。
observe 侧重以客观的态度进行观察。
witness 指当场看见，亲眼看见。
see的例句：1. Specialists see various reasons for the recent surge in inflation.专家们认为目前通货膨胀加剧有多种原因。
2. I don't see the point in it really. It's just stupid.我真的不理解这到底有什么意义，简直是愚蠢透顶。
3. He'd phoned Laura to see if she was better.他打电话给劳拉看她是不是好些了。
4. The criticisms will not stop people flocking to see the film.批评的声音不会阻止人们涌到影院观看这部电影。
5. He could just about see the little man behind the counter.他勉强能看到柜台后面的小个子男人。
6. One month before the deadline we see the hollowness of these promises.离最后期限只有一个月时，我们认识到了这些许诺都是空头支票。
7. Friends passed the word that the miners wanted to see him.朋友们传话说矿工们想见他。
observe的同义词辨析
observe的同义词辨析observe同义词：look, see, watch, observe, witnessobserve同义词辨析：这些动词均有"看"之意。
look 侧看"重"的动作。
see 指看见。
watch 指用眼睛跟随某物，以便对每一个变化、运动等进行观察。
observe 侧重以客观的态度进行观察。
witness 指当场看见，亲眼看见。
observe的例句：1. the royal greenwich observatory was founded to observe and catalogue the stars.当初创立皇家格林尼治天文台就是为了观察星体并对其进行编目。
2. scientists observe the same dynamics in fluids.科学家们在液体中观察到了同样的驱动力。
3. let's observe a minute's silence in memory of the dead.让我们为死者静默一分钟.4. we must observe the correct protocol.我们必须遵守应有的礼仪.5. did he observe on your unusual performance?他对你那不寻常的演出发表评论了吗 ?6. we'll have to observe the formalities.我们得按手续办事.7. didn't you observe the difference?难道你没有看出差别?8. everyone should observe the law.谁都应该守法.9. one should not only observe but also help.不但要看,而且要帮.10. one must observe the rules.我们(任何人)必须遵守规则.11. the scientists will study the variety of trees and observe which are fruiting.科学家将研究各种树木，并观察哪些会结果实。
see watch等区别
see；look；watch；notice；meet的区别see ；look ；watch ；notice 这四个动词均有“看”之意（作谓语动词用），但表达的意义和用法不同。
see意为“看到”，表示视觉器官有意识或无意识地看到物体，强调看见或没看见什么内容，表示看到的结果，常用作及物动词（一般不用进行时态），后面直接跟宾语。
如： What can you see in the picture？在图画中你能看到什么？ I can see five books on the desk.我能看到桌上有五本书。
其他用法：see a film看电影；go to see sb.去拜访、看望某人；See you!再见！look意为“看”，表示有意识地观看，强调“看”的动作，做动词，看静态东西，通常是没有看的目标，是不及物动词，后面不能直接接宾语，做语气词，引起某人的注意，单独用的时候表示提醒对方注意。
如，Look! There are many birds flying in the sky.看！空中有许多鸟在飞。
Look ！How happily they are playing！看！他们玩得多高兴啊！Look ! can you see it? no ,I can't see anything.look at是一个常用词组，“看...,注视某人或某物”,表示看的动作和目的，但不一定能看得见或看得清楚，通常接宾语，其宾语可以是指人的词语，也可以是指物的词语。
如：I am looking at the blackboard, but I cant see the words on it. 我在看着黑板，但看不见上面的字。
如，Please look at the blackboard! 请看黑板！please look at me.watch意为“观看；注视”，指以较大的注意力观看，常用作及物动词，有“注视动静”之意，可以直接加宾语，指明是看什么，但不见得看到了什么，多掌握固定搭配。
三种“看”的英语词汇辨析
三种“看”的英语词汇辨析See 、 Look 、Watch都有“看” 的表达意思，其中的具体区别你知道么?下面是店铺为大家搜索整理三种“看”的英语词汇辨析，希望能给大家带来帮助!看，看见 See VS Look VS Watch当我们坐地铁时经常听到Watch your step这一句话，Watch有‘注视’的含义。
表示‘看’的单词有see、look、watch等，但它们的用法却都不一样。
此外，glance、glimpse等单词也有‘瞟一眼’的意思。
See主要用于用眼睛看的情况，侧重看的结果。
I went to China to see Beijing Olympics。
我为了看北京奥林匹克去了中国。
Look主要用于以引起对方注意为目的看。
She looks at me very carefully。
她目不转睛的看着我。
Watch的`意思是观看、注视，主要用于注视移动着的物体。
I'm watching TV。
我正看电视。
Please watch my baggage。
麻烦帮我看一下行李。
See--See through 看穿，帮助See out 送某人出去Look--Look over 把…看一遍，睁一眼闭一眼Look into 深入地检查，研究，调查Watch--Watch over 看守，照管，监视Keep a watch on 监视，密切注视相关阅读36组易混英语词汇1) quite 相当 quiet 安静地2) affect v 影响, 假装 effect n 结果, 影响3) adapt 适应 adopt 采用 adept 内行4) angel 天使 angle 角度5) dairy 牛奶厂 diary 日记6) contend 奋斗, 斗争content 内容, 满足的context 上下文contest 竞争, 比赛7) principal 校长, 主要的 principle 原则8) implicit 含蓄的 explicit 明白的9) dessert 甜食 desert 沙漠 v 放弃 dissert 写论文10) pat 轻拍 tap 轻打 slap 掌击 rap 敲，打11) decent 正经的 descent n 向下, 血统 descend v 向下12) sweet 甜的 sweat 汗水13) later 后来 latter 后者 latest 最近的 lately adv 最近14) costume 服装 custom 习惯15) extensive 广泛的 intensive 深刻的16) aural 耳的 oral 口头的17) abroad 国外 aboard 上(船，飞机)18) altar 祭坛 alter 改变19) assent 同意 ascent 上升 accent 口音20) champion 冠军 champagne 香槟酒 campaign 战役21) baron 男爵 barren 不毛之地的 barn 古仓22) beam 梁，光束 bean 豆 been have 过去式23) precede 领先 proceed 进行，继续24) pray 祈祷 prey 猎物25) chicken 鸡 kitchen 厨房26) monkey 猴子 donkey 驴27) chore 家务活 chord 和弦 cord 细绳28) cite 引用 site 场所 sight 视觉29) clash (金属)幢击声 crash 碰幢，坠落 crush 压坏30) compliment 赞美 complement 附加物31) confirm 确认 conform 使顺从32) contact 接触 contract 合同 contrast 对照33) council 议会 counsel 忠告 consul 领事34) crow 乌鸦 crown 王冠 clown 小丑 cow 牛35) dose 一剂药 doze 打盹36) drawn draw 过去分词 drown 溺水拓展延续read是看书、报纸：see是看电影watch是看电视．look是动词new新的sight视力,视觉agoodsight scene情景,景色beautifulscene scenaro电影剧本landscape风景,山水画例说英语中表“看”的常用动词最常见的表示“看”的动词是see和look,但除了see和look之外,还有不少表示“看”的动词,主要有watch、observe、view、perceive、notice、behold、contemplate、espy、survey等。
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辨析see notice observe watch, look at
①look (at) 意味着集中注意力地看，是有意的，强调动作.
例如：The old lady was looking at him from head to foot 这位老夫人从头到脚地看着他.
②see强调结果，意为“看见、看到”.
例如：I looked but saw nothing. 我看了，但什么也没看见.
③watch表示所看事物的变化、移动和发展.
例如：We watched that boy swim. 我们观看那个男孩游泳. [注意]i. look at和watch的区别在于：look at 注意的是它后面的宾语，watch注意的是它后面宾语的举动.
例如：I am looking at the boy. 我在注视这孩子.I am watching the boy. 我在注视这孩子的举动.
ii. look at, see, watch都可跟不带to的动词不定式或现在分词作宾语补足语
例如：We looked at the children walk up the hill. 我们望着孩子们上了山.（强调动作的全过程）
We looked at the children walking up the hill. 我们望着孩子们在上山.（强调动作在进行之中）
④see表“看见、看到”时，一般不用进行时态.see还作“看望；送行”讲，这时可用进行时.
例如：I’m seeing him tomorrow . 我明天去看他. We’re going to see him home tomorrow. 我们打算明天送他回家.
[注意]根据习惯选用see和watch.看电视用watch，看电影用see .如：Did you watch TV last night?昨晚你看电视了吗？
Have you seen the film? 你看过这部电影吗？
⑤notice“看到，注意到，觉察到”；偶而看到细小的但可能是重要的事情.
例如：Did you notice anything unusual?你觉察出有任何异样的情况吗？
⑥observe“观察”；从不同的角度长时间地看并研究.
例如：observe the behave-iour of birds 观察鸟的习性/ observe stars all one’s life一生致力于观察星象.
1. Several possible buyers have come to the house.
A. look
B. observe
C. view
D. watch
解：答案为 C.该题意思是“几个可能是买主的人来看过房子”.observe, watch含有“观察”的意思，look是不及物动词，不能直接跟宾语.
2. They the train until it disappeared in the distance.
A. saw
B. watched
C. noticed
D. observed
解：答案选B. 这句话的意思为“他们注视着火车直到它消失在远方”.；saw意思是“看见”noticed“注意到”；observed “注意到，观察”，都强调结果，只有watched “观察”强调动作的
延续.。