高中英语必修一M5单词讲解

2 [C] thing made by mixing 混合之物: a `cough mixture, ie containing several medicines 复方咳嗽药 The city was a mixture of old and new buildings. 该市是新旧建筑物的 混合体. 3 [sing] (chemistry 化) combination of two or more substances which do not alter their composition 混合物: Air is a mixture, not a compound of gases. 空气是多种气体的混合物, 不是化合物. oxygen n [U] chemical element, a gas without colour, taste or smell, present in the air and necessary for all forms of life on earth 氧; 氧气: There was a shortage of oxygen at the top of the mountain. 该山顶上缺氧. She died from lack of oxygen. 她缺氧致死. electricity n [U] 1 form of energy occurring in certain particles (electrons and protons) and hence in larger bodies, since they contain these 电. 2 supply of such energy in the form of electric current for lighting, heating, driving machines, etc 电流: Don't leave the lights on it wastes electricity. 走时要随手关灯--以免浪费电. When did the village first get electricity? 这个村何时通的电? 3 branch of science concerned with the study of this form of energy 电学. stage n 1 [C] platform or area (usu in a theatre) on which plays are performed to an audience 舞台（通常指剧场中的）:
He was on (the) stage for most of the play. 他几乎整出戏都在台上. 2 the stage [sing] the profession of actors and actresses; life and work in the theatre 演员的职业; 戏剧表演; 舞台生涯: She advised her son not to choose the stage as a career. 她劝儿子不要选择戏剧表演作职业. 3 [sing] (fig 比喻) scene of action; place where events occur 场所; （事件发生的）现场: Geneva has become the stage for many meetings of world leaders. 日内瓦已成为世界领袖经常召开会议的地方. 4 [C] point, period or step in the development, growth or progress of sth/sb 某事物[某人]的发展、 成长或进步的程度、 时期或阶段: at an early stage in our history 在我们历史发展的早期 At this stage it's impossible to know whether our plan will succeed. 目前尚无法预见我们的计划能否实现. The baby has reached the talking stage, ie is beginning to talk. 这婴儿已经会说话了. conclusion n 1 [C usu sing 通常作单数] end 结束; 结尾: at the conclusion of his speech 他讲话的结尾 bring sth to a speedy conclusion 将某事物迅速结束. 2 [C] ~ (that...) belief or opinion that is the result of reasoning （由推理而得出的）信念或意见, 结论: I came to/reached the conclusion that he'd been lying. 我看他是在说谎. What conclusions do you draw (from the evidence you've heard)? 你从（你听到的证据）中得出什么结论? aim v
我们（与他们）订有维修合约, 现在不能撤消. (b) ~ sth (with sb) (fml 文) enter into or undertake sth formally 正式缔结或确定（某事物）: She had contracted a most unsuitable marriage. 她订下的婚约极不匹 配. contract an alliance with a neighbouring state 与邻国缔结同盟. 2 ~ (sth) (to sth) 1 make or become smaller or shorter （使）缩小, 缩短, 缩约: Metals contract as they get cooler. 金属遇冷则收缩. `I will' can be contracted to `I'll'. Iwill可缩写为I'll. (fig 比喻) Our business has contracted a lot recently. 我们的生意近来大为减少了. 2 (cause sth to) become tighter or narrower; constrict （使某物）紧缩或收缩; 缩: contract a muscle 收缩肌肉 The tunnel contracts to a narrow passageway as you go deeper. 再往里走, 坑道缩小成了一条窄窄的通道. Cf 参看 expand. substance n 1 [C] particular type of matter 物质: a poisonous substance like cyanide 类似氰化物的有毒物质 a substance that will prevent rust 防锈物质 Water and ice are the same substance in different forms. 水和冰是同一物质的不同状态. mixture n 1 [U] mixing orbeing mixed 混合; 混合状态.
The petals of the flowers expanded in the sunshine. 花瓣在阳光下张开了. His face expanded in a smile of welcome. 他喜笑颜开地表示欢迎. Cf 参看 contract3. contract n 1 ~ (with sb) (for sth/to do sth) legally binding agreement, usu in writing 合同; 契约: You shouldn't enter into/make a contract until you have studied its provisions carefully. 你应该先仔细研究合同的条款, 然后再签订. We have a contract with the Government for the supply of vehicles/to supply vehicles. 我们在提供车辆方面与政府订有合约. When the legal formalities have been settled, the buyer and seller of a house can exchange contracts, ie to complete their agreement legally. 房子的买方和卖方办妥法律手续即可交换契约. He has agreed salary terms and is ready to sign a new contract, ie of employment. 他同意了薪金条件, 准备签新合同. I'm not a permanent employee; I'm working here on a fixed-term contract. 我并不是永久雇员, 而是根据定期合同在此工作的. [attrib 作定语] the contract price, date, etc, ie the price, date, etc agreed to 合同价格、 日期等 a contract worker, ie employed on a contract 合同工. v 1 (a) ~ with sb for sth make (a legal agreement) with sb for a purpose 与某人签订（合同或契约）: contract with ato buy fuel from it 与一家公司就供应燃料一事签订合同 Having contracted (with them) to do the repairs, we cannot withdraw now.
liquid n 1 [C, U] substance that flows freely but is not a gas, eg water or oil 液体: Air is a fluid but not a liquid, while water is both a fluid and a liquid. 空气是流体不是液体, 水是流体也是液体. If you add too much liquid the mixture will not be thick enough. 加入的液体太多, 混合液的浓度就不够. adj [usu attrib 通常作定语] 1 in the form of a liquid; not gaseous or solid 液体的; 液态的; 流质的: liquid food/nourishment, ie easily swallowed, eg by sick people 流质食物[营养品] (joc 谑) a liquid lunch, ie beer, etc rather than food 液体午餐（啤酒 等）. liquid gas gas reduced to liquid form by intense cold 液化的气体. expand v 1 ~ (sth) (into sth) (cause sth to) become greater in size, number or importance 使（某事物）变大, 扩大, 增大, 增加, 增强, 扩展: Metals expand when they are heated. 金属受热则膨胀. A tyre expands when you pump air into it. 轮胎一打气就鼓起来. His modest business eventually expanded into a supermarket empire. 他原先不大的生意后来扩展成了超级市场集团企业. Our foreign trade has expanded greatly in recent years. 我国的对外贸易近年来已有极大发展. Why not try to expand your story into a novel? 你怎么不把你的故事扩展成小说呢? 2 spread out; unfold 伸展; 伸开; 张开; 展开: