Unit1 Nature New Words词汇表 essential a. absolutely necessary;vitally necessary 必要的，重要的，本质的 nitrogen a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas 喷 vapor n. a visible suspension in the air of particles of some substance 蒸汽 inert a. havingonly a limited ability to react chemically;chemically inactive 惰性的 the act of liberating someoneor something;a process that liberates or 释放 to liberate or discharge something 释放 substance n. that which has mass and occupies space 物质 smog n. air pollution by a mixtureof smoke and fog 烟雾 ozone n. a colorless gas (03)soluble in alkalis and cold water 臭氧 wel-being n. a contented state of being happy,healthy and prosperous 幸福。安康 a tiny piece of anything;a body having finite mass and internal structure but negligible dimensions 微粒，粒子 diesel n. an internal-combustion engine that burns heavy oil 柴油机，内燃机
Unit 1 Nature New Words词汇表 essential a. absolutely necessary; vitally necessary 必要的，重要的，本质的 nitrogen n. a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas 氮 vapor n. a visible suspension in the air of particles of some substance 蒸汽 inert a. having only a limited ability to react chemically; chemically inactive 惰性的 release n. the act of liberating someone or something; a process that liberates or discharges something 释放 v. to liberate or discharge something 释放 substance n. that which has mass and occupies space 物质 smog n. air pollution by a mixture of smoke and fog 烟雾 ozone n. a colorless gas （O3）soluble in alkalis and cold water 臭氧 well-being n. a contented state of being happy, healthy and prosperous 幸福，安康 particle n. a tiny piece of anything;a body having finite mass and internal structure but negligible dimensions 微粒，粒子 diesel n. an internal-combustion engine that burns heavy oil 柴油机，内燃机
exhaustn.gases ejected from an engine as wasteproducts 废气 charcoal n. a carbonaceous material obtained by heating wood or other organic matter in the absence of air 木炭 barbeque n.a cookout in which food is cooked over an open fire 烤肉野餐 significant a.important;of consequence;having or expressing a meaning 重要的。重大的，有意义的，意味深长的 quantity n.an amountof somethingthat can be counted or measured 量，数量，许多，大量 soot n. a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink 煤烟，烟尘 sulfur n. an abundant tasteless odorless multivalent nonmetallic element 变 dioxide n. an oxide containing two atoms of oxygen in the molecule 二氧化物 monoxide an oxide containing just one atom of oxygen in the molecule 一氧化物 oxide n. any compound of oxygen with anotherelement or a radical 氧化物 reaction n.(chemistry)a process in which one or more substances are changed into others (化学)反应 large-scale a. usually large in scope;constructed or drawn to a big scale 大规模的，大比例尺的，大范围的 pollutant waste matter that contaminates the wateror air or soil 污染物质
exhaustn. gases ejected from an engine as waste products 废气 charcoal n. a carbonaceous material obtained by heating wood or other organic matter in the absence of air 木炭 barbeque n. a cookout in which food is cooked over an open fire 烤肉野餐 significant a. important;of consequence; having or expressing a meaning 重要的，重大的，有意义的，意味深长的 quantity n. an amount of something that can be counted or measured 量，数量，许多，大量 soot n. a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink 煤烟，烟尘 sulfur n. an abundant tasteless odorless multivalent nonmetallic element 硫 dioxide n. an oxide containing two atoms of oxygen in the molecule 二氧化物 monoxide n. an oxide containing just one atom of oxygen in the molecule 一氧化物 oxide n. any compound of oxygen with another element or a radical 氧化物 reaction n. (chemistry) a process in which one or more substances are changed into others （化学）反应 large-scale a. usually large in scope; constructed or drawn to a big scale 大规模的，大比例尺的，大范围的 pollutant n. waste matter that contaminates the water or air or soil 污染物质
derive v.to come from;to obtain 得自，起源；获得 emission n the act of emitting;causing to flow forth;a substancethat is emitted or released 发出，发出物 consequence n. the outcome of an event especially as relative to an individual 结果，后果 sulfuric a. of,relating to or containingsulfur 硫磺的，含多量硫磺的 global a. worldwide 全球的，全世界的 buildupn. the act of building up an accumulation;the result of the process of accumulation 组织，组成，增强 convertv. to change the nature,purpose,or function of something 使转变 legislative a relating to a legislature or composed of members of a legislature 立法的，有立法权的 assessment n. the classification of someoneor somethingwith respect to its worth 估价，评估 investigate v. to try find out the truth about something such as a crime,accident,or scientific problem 调查，调查研究 exposure n. thestate ofbeing putinto asituation in which something harmfulor dangerous might affect you;the act of making something publicly known because you believe it is wrongor illegal 暴露，曝光 regulation n. an authoritative rule 规则，规章 legislation n. law enacted by a legislative body
derive v. to come from;to obtain 得自，起源；获得 emission n. the act of emitting; causing to flow forth;a substance that is emitted or released 发出，发出物 consequence n. the outcome of an event especially as relative to an individual 结果，后果 sulfuric a. of, relating to or containing sulfur 硫磺的，含多量硫磺的 global a. worldwide 全球的，全世界的 buildup n. the act of building up an accumulation;the result of the process of accumulation 组织，组成，增强 convert v. to change the nature, purpose, or function of something 使转变 legislative a. relating to a legislature or composed of members of a legislature 立法的，有立法权的 assessment n. the classification of someone or something with respect to its worth 估价，评估 investigate v. to try find out the truth about something such as a crime, accident, or scientific problem 调查，调查研究 exposure n. the state of being put into a situation in which something harmful or dangerous might affect you; the act of making something publicly known because you believe it is wrong or illegal 暴露，曝光 regulation n. an authoritative rule 规则，规章 legislation n. law enacted by a legislative body
立法，法律 vehice. any means in or by which someone travelsor somethingis carried or conveyed, a means of transport 车辆，交通工具，运载工具 regulatory a. havingthe purposeof controlling an activity or process,especially by rules 调整的，管制的，调节的 regulate V. to controlan activity or process,especially byrules;to make a machine work at a particular speed,temperature,etc. 有系统地管理，规定，调节，调整 Phrases and Expressions顺序朗读新短语 supply with供应nitrogen oxide氮氧化物 inert gas惰性气体chemical reaction 化学反应 acid rain酸雨derive from来自 greenhouse effect温室效应suffer from遭受（不幸的事情），患有（疾病 等) ozonelayer臭氧层due to由于，归因于 have an effect on 对有影响convertto 转换成 as well as以及，和take stepsto dosth.采取措施做某事 refer to…as把…称作exposure to暴露于，接触 a quantity of许多，大量play a role in在…-方面起作用 sulfurdioxide二氧化硫in addition此外，另外 carbon monoxide 一氧化碳meet a challenge 应对挑战
立法，法律 vehicle n. any means in or by which someone travels or something is carried or conveyed; a means of transport 车辆，交通工具，运载工具 regulatory a. having the purpose of controlling an activity or process, especially by rules 调整的，管制的，调节的 regulate v. to control an activity or process, especially by rules; to make a machine work at a particular speed, temperature, etc. 有系统地管理，规定，调节，调整 Phrases and Expressions 顺序朗读新短语 supply with 供应 nitrogen oxide 氮氧化物 inert gas 惰性气体 chemical reaction 化学反应 acid rain 酸雨 derive from 来自 greenhouse effect 温室效应 suffer from 遭受（不幸的事情），患有（疾病 等） ozone layer 臭氧层 due to 由于，归因于 have an effect on 对……有影响 convert to 转换成 as well as 以及，和 take steps to do sth. 采取措施做某事 refer to ... as ... 把……称作 exposure to 暴露于，接触 a quantity of 许多，大量 play a role in 在……方面起作用 sulfur dioxide 二氧化硫 in addition 此外，另外 carbon monoxide 一氧化碳 meet a challenge 应对挑战
Unit1 Nature Difficult Sentences长难句 Air supplies us with oxygen which is essential for our bodies to live 空气为我们提供生存所必不可少的氧气。 “which”引导了一个限定性定语从句修饰"oxygen'。 'supply'通常指定期 “供应”，强调替代或补充所需物品，常用于"supply sb.with sth.”或"supply sth.to/for sb”等固定搭配中。 Cows supply us with milk. 母牛供给我们牛奶。 Our task is to supply vegetables all year round. 我们的任务是一年四季提供蔬菜。 5 upply作名词表示“储备”，用于复数表示储备事物的种类。 【相关短语】：in short supply短缺 【辨析l:offer,,provide和gve 三者都有“提供，给”之意，但含义不同。o伦既可表示主动慷慨地给别人提供某 物，也可表示无主动之情地提供，常用于“offer sb..sth.”或“offer sth.tosb.”等固定搭 配中。 Two days later I received a letter offering me the job. 两天后我收到了一封信，给我提供了这份工作。 The guesthouse offers all kinds of food to foreign visitors. 这家招待所为外宾供应各种食品。 "provide”用于表示无主动慷慨之意地为人或物提供需要或有用的东西，仅仅是 出于某种责任，常用于"providesb.with sth.”或providesth.for sb.”等固定搭配中。 The children are provided with good food and clothing. 孩子们有良好的衣食供应。 It is the duty of the government to provide homes for the old. 政府有义务为老年人提供住所。 give常用于"give sb.sth."或“givesth.tosb.”等固定搭配中
Unit 1 Nature Difficult Sentences 长难句 Air supplies us with oxygen which is essential for our bodies to live. 空气为我们提供生存所必不可少的氧气。 ““which”引导了一个限定性定语从句修饰“oxygen”。“supply”通常指定期 “供应”，强调替代或补充所需物品，常用于“supply sb. with sth.”或“supply sth. to/for sb.”等固定搭配中。 Cows supply us with milk. 母牛供给我们牛奶。 Our task is to supply vegetables all year round. 我们的任务是一年四季提供蔬菜。 supply 作名词表示“储备”, 用于复数表示储备事物的种类。 【相关短语】：in short supply 短缺 【辨析】：offer, provide 和 give 三者都有“提供，给”之意, 但含义不同。“offer”既可表示主动慷慨地给别人提供某 物，也可表示无主动之情地提供，常用于“offer sb. sth.”或“offer sth. to sb.”等固定搭 配中。 Two days later I received a letter offering me the job. 两天后我收到了一封信，给我提供了这份工作。 The guesthouse offers all kinds of food to foreign visitors. 这家招待所为外宾供应各种食品。 “provide”用于表示无主动慷慨之意地为人或物提供需要或有用的东西，仅仅是 出于某种责任，常用于“provide sb. with sth.”或“provide sth. for sb.”等固定搭配中。 The children are provided with good food and clothing. 孩子们有良好的衣食供应。 It is the duty of the government to provide homes for the old. 政府有义务为老年人提供住所。 “give”常用于“give sb. sth.”或“give sth. to sb.”等固定搭配中