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1、英语重点词汇详解不定冠词a和an的用法.概念：不定冠词a和an是用于单数可数名词或名词词组前，对名词起 限定作用的一种虚词，表泛指，即表示所说的人或物对听者或读 者来说可能是不明确的；或表意思“一个”.用法:表示数量“一”，但并不强调数目，只表示名词为不特定者。例如：a pen 一支钢笔；a handsome man 位英俊的男士。an orange 一个橙子笼统的指某人或某物，但不具体说明。例如：There is a car in the yard.院子里有一辆汽车。There is a ruler on the desk.桌子上有把尺子。泛指某一类人或事物。例如:（discover sb
2、in the act of doing sth wrong or committing a crime.）. to be shown the red card: （in football） card shown by the referee to a player that he is sending off the field. （比赛时裁判向球员出示的）红牌（罚球员下场）2 . be in / get into red: have more liabilities than assets; cause sb to owe money 负债，欠债，赤字. red-letter day: da
3、y that is important or memorable because sth good happened on it重要或值得纪念的日子3 . red-light district: part of a town where there are many prostitutes, sex-shops红灯区（城市中妓女、性用品商店集 中地区）. red carpet: strip of red carpet laid out for the reception of an important visitor （为迎接贵宾铺的）红地毯4 .out of the red还清亏欠. red
4、 figure 或 red ink 赤字8 . red cent 一分钱，red gold 纯金. red tip on stock market指股票市场的最新情报9 . red tape: excessive bureaucracy in public business 繁 文缗节，官僚作风四、Green绿色green常用来表示“新鲜”或“嫉妒”。1 . green back: US banknote 美钞. green belt: area of open land around a city, where building is strictly controlled环城绿化地带. g
5、reen-eyed: envious / jealous 嫉妒, 眼红2 . green fingers: skill in gardening 园艺技能. give sb the green light: give sb permission to do sth 准许某人做某事；开绿灯3 . green hand: new comer, without experience 新手. green power:金钱的力量或财团4 . look green: (of the complexion) pale, sick-looking 面 容苍白，带病容. live to a green old
6、age: full of vigour, fresh 老当 益壮5 . keep a person s memory green: not allow sb to be forgotten使记忆不忘. green meat 鲜肉6 . green stamp指美国救济补助票，因印面绿色而得名五、Blue蓝色blue在英语中表示“不快乐、忧郁的情绪表示社会地位高、 有权势或出身贵族或王族。1 . Once in a blue moon: very rarely 难得地，千载难逢地. a bolt from the blue晴天霹雳，意外地2 . to look blue: sad, depres
7、sed 面容沮丧. a blue film: indecent; pornographic 黄色电影a blue joke黄色/猥亵的笑话. blue blood: aristocratic descent or birth 贵族出身， 贵族身分a blue-blooded family 贵族世家. come out of the blue: happen unexpectedly, without warning意外的，未来先知的3 . blue-eyed boy: favourite of a person or group; darling 亲信；宠儿，宝贝儿. in a blue mo
8、od 情绪低落4 . blue-sky market 露天市场. blue-collar workers: relating to manual workers 体力 劳动者5 . blue sky bargaining:漫天讨价(指谈判或其它交易中提 出根本不切实际的或不合理的要求，使协议无法达成)六、Yellow黄色1 . to be yellow: coward 胆小的，懦怯的. to be shown the yellow card: (in football) card shown by the referee to a player that he is cautioning 黄牌
9、2 . yellow pages: telephone directory, or section of ore, listing companies according to the goods or services they offer黄页分类电话簿七、Purple紫色1 . born in / to the purple 出身王室（显贵）. purple prose词藻华丽的段落八、Grey灰色. grey beard: old man 老人1 . grey area:（灰色地区）指失业严重地区. a grey existence单调乏味地生活九、Brown棕色. as brown a
10、s a berry: having skin stunned brown by the sun or the weather皮肤晒得髅黑的1 . in a brown study: in deep thought; in a reverie 沉思， 默想. to be browned off: bored; fed up dishearten 厌烦2 . brown sugar:红糖. brown paper:包装2氏十、Pink粉红色. in the pink (of condition / health) : extremely healthy in perfect condition极健
11、康； 状况极佳1 . pink-eye: infectious disease causing inflammation of the surface of the eye, conjunctivitis 红眼病； 传染性结 膜炎. be tickled pink: extremely pleased or amused 感至ll非 常满足或高兴。A dog is a lovely animal.狗是一种可爱的动物。A horse is a useful animal.马是一种有用的动物。表示首次提到的人或事物（常用于介绍用语中）。例如：This is a map.这是一张地图。表示某一类人或
12、事物中的任何一个。例如：There is an elephant in the zoo.动物园里有一头大象。用于抽象名词前，使抽象名词具体化，表示“一次、一种、 场”等。例如：Its a pleasure to cooperate with you.和你合作很愉快。Its a pleasure to talk with you.和你谈话很愉快。用于某些固定搭配中。例如：have a look 看一看；take a walk 散步；have a nice day 过得开心;have a good time玩得很开心 a lot of许多，大量的3. a和an的用法区别:a用在读音以辅音音素开头的
13、单数可数名词（词组）或字母前。 注意：这里说的是元音音素不是元音字母。例如：a watch 一块手表。We can see an 0 and a U in the word your.我们能看到单词“your”中有一个字母“0”和“U”。an用在读音以元音音素开头的单数可数名词或字母前。an apple 一个苹果。注意：以元音字母开头的单词（或词组），其读音并不都是以元 音音素开头；以辅音字母开头的单词（或词组），其读音也并不 都是以辅音音素开头。例如：a useful book （单词useful以元音字母u开头，但它的读音以 辅音音素/ju:/开头，所以前面用a） 一本有用的书。an ho
14、ur （单词hour以辅音字母h开头，但h在这里不发音，hour 的音标为/a/,以元音音素开头，所以前面用an） 一个小时。人的七情与七种基本颜色有某种天然的、微妙的巧合。所以使得 颜色词除了具备本身所有的颜色之意义外，在一些短语和特定语 言环境中，还有一些有趣的特殊含义，“令人意外”，请看：红茶是black tea而不是red tea,金黄头发是blonde hair而 不是yellow hair,黑眼睛是dark eyes而不是black eyes,白 头发是gray hair而不是white hair,值得注意的是，black eyes 一般指的是黑圈青肿，可不要用错了哦！关于英语里的
15、颜色，还有很多有趣的事情，somebody is in + color表示“某人穿颜色的衣服”，但是，somebody/somethingis in the + color 则表示其他含义，例如：The little girl is in pink.意思是“小女孩穿粉红色的衣服”。The little girl is in the pink.指的是“小女孩气色好或者身体很健康”。类 似的还有下面的这些例子：1. in the black 表示“盈利、盈余”，例如：This company has been in the black for more than 10 years.这家公司已经盈
16、利超过10年了。2. in the red 表不“赤字、负债”，例如：He often spends money on games and now he is in the red.他经常花钱打游戏，现 在负债了。3. in the green表示“年轻力壮、年富力强”，例如:Although he is in the green, he is competent at the job. 他虽然年 富力强，但是他无法胜任这份工作。一、White 白色white使人联想起清白、纯洁。1 . bleed sb white: take away all sb s money 榨取某人所 有的钱(血汗
17、)2 . Show the white feather: act in a cowardly way, show fear 示弱、胆怯3 . a white elephant: possession that is useless and often expensive to maintain无用的而常指保管昂贵的东西；昂贵却 无用而难以安置的东西4 . White collar: of (a job, worker) not manual 白领的5 . White lie: harmless or trivial lie, esp one told in order to avoid hur
18、ting sb.无害的或无关紧要的谎话6 . the white houses:the official residence （in Washington DC of the President of the USA 白宫the US president and his advisers.7 . White wedding: wedding at which the bride wears a white dress, esp one that takes place in a church 新娘穿白色礼 服的婚礼. a white war没有硝烟的战争8 . white moments of
19、 life 人生得意之时. a white hair boy 宠儿 （blue-eyed boys 宠儿）9 . white coal 水力. white money 车艮币10 . white sale 大减价. white goods体积大、单价高的家用电器用具11 . the white way白光大街（指城里灯光灿烂的商业区）. be white of正直，可信赖的，可依赖（靠）的That，s very white of you.你这样做真是太正直了。12 . white coffee加牛奶的咖啡；black coffee不加牛奶的咖 啡Two white coffees, pleas
20、e.请来两杯加牛奶的咖啡。Do you take your coffee black or white?你喝咖啡加不加牛奶？13 . whiter than white(of a person人)完全诚实清白；纯洁无瑕The government must be seen to be whiter than white.政府须让人觉得是清正廉洁的。19,善良的They claim to be white witches.她们自称是善良的女巫。柯林斯高阶英汉双解学习词典20. in black and white书面的，白纸黑字的He gave me assurance in black and
21、 white.他给了我书面保证。汉英大词典二、Black 黑色 black常与“不好的”、“坏的”、“邪恶”相联系。1 . a black look: look back at sb / give sb a black look.look at sb angrily恶狠狠的瞪2 . a black deed: a harmful, evil deed 昧良心的行为3 . in black and white白纸黑字；以书面形式I want the contract in black and white. 我要这项合同见诸 文字。4 . black sheep: person regarded
22、as a disgrace or a failure by other members of his family or group 害群之马，败家子. black and blue: hit sb until she is covered with bruises （把某人打得）青一块紫一块5 . black coffee: coffee without milk 不加牛奶的咖啡black tea:红茶6 . black market: illegal buying and selling of goods or currencies黑市，黑市交易. in the black: have money in one s bank account 在专艮 行里有存款；盈利，赚钱7 . be in somebody s black books 失宠. to go into the black 哀悼8 . black ball秘密反对票或否决票三、Red红色无论是在英语国家还是在中国，红色往往与庆祝活动或喜庆日子 有关。因为日历中，这些日子常用红色字体，在经济领域中，red 表示业绩赤字。1 . to catch sb red 或 take sb red-handed 当场抓获