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,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,2015/4/16,#,Unit4,词汇,Telecommunications,n.UThe sending and receiving of messages over distance,esp.by telephone,radio and television.,电信,远距离通信,The company specializes in telecommunications.,这家公司专门从事长途通信,。,a telecommunications satellite,长途通信卫星,the telecommunications industry,电信业,dumb,dm,a.acking,the power of speaking;unable to speak,哑的,,不会说话的,1.,He was struck dumb with fear.,他吓得说不出话来,。,2.The prisoner remained dumb throughout his,trial,.,整个审判期间犯人一言不发。,investment investmnt,n.C.UThe act of investing money in sth.,投资,investment,词根,记忆:invest(投资)+,ment,词形,变换:invest 投资,investor 投资者,ment后缀,:,assessment,评估,department 部门,系,improvement 提升,settlement 定居,unemployment 失业,utility,n.1.,C a service used by the public,such as an electricity or gas supply or a train service 公用事业,公用事业设施,The utility of this rescue equipment has still to be assessed in a real emergency.,这种救生设备的功用还有待在真正的紧急情况中评定。,2.U the usefulness of sth.,esp.in a practical way,功用,,效用,,利用,Some,kitchen tools have very little utility.,有些,厨房用具几乎没有什么用处。,词根记忆:util(使用)+ity可使用的效用,单词变形:utilize,vt.,利用,optical ptikl,a.Connect with sight or light.,视觉的,词根记忆:opt(视力)+ical(.的)视觉的,op前缀:option 选择,opportunity 机会,opinion 观点,diameter,daimit,n.C the(length of a)straight line that goes from one side of a round object to another,through the center of the object,直径,The,diameter measures twice the radius.,直径为半径的两倍。,The pond is six feet in diameter.,该池塘直径为,6,英尺。,形,近词辨析:diagram 图解 图表,diagnose,诊断,cable,keibl,n.C(a length of)wire,esp.twisted into thick strong rope or used to carry electricity,缆索,,,电缆,There,were cables used for telephones,lights and computers all over the floor.,地上满是电话、电灯、计算机的,线。,The,road has been dug up in order to lay cables.,路被挖开以便铺设电缆。,transmission tr,nsmi,n,n.1.Uthe act or process of sending out an electronic signal or message or of broadcasting a radio or television program,播送;发射;传输,2.Uthe process of passing sth.from one person,place or thing to another,传播,词根记忆:trans(越过)+miss(放出)+ion传送,,发射,trans前缀:translate 翻译,transaction 交易,业务,transfer,转移,transfrom,转换,transport 运输,parade,preid,n.1.C a series of people or things that seems never to end,一连串,,,一批,2.C a line of people,vehicles,etc.moving forward in order,often as a celebration of some event,(,庆祝)游行,检阅,When I asked him about his childhood,he remembered a parade,of baby-sitters,.,当我问起他的童年时,他记起了一大批保姆。,The,crowd marched through town in a victory parade.,人群游行走过市中心,欢庆胜利。,U,rban,a.of or in a city or town,城市的,词根记忆:urb(城市)+an(.的)城市的,词汇联想:nation 国家,民族,country,国家,village,村,town,镇,suburb,郊区,spider,spaid,n.Ca small insect-like creature with eight thin legs 蜘蛛,a,spiders web,蜘蛛网,Spiders,produce fine threads which they make into webs in order to trap insects for food.,蜘蛛用细丝做网来捕捉昆虫吃。,condensekndens,v.1.reduce(esp.sth.written)to a smaller or shortened form,缩短,,压缩,2,.(of a gas)become liquid or sometimes solid,esp.by,becoming cool,冷凝,Ive tried to condense ten pages of comments into two.,我,试图把十页长的评论文章缩短成两页,。,Steam condenses into water when it touches a cold surface.,蒸气,接触冷的表面就凝成水珠,词根,记忆:,con+dense,(密集的)变得密集的压缩,con,前缀,:,confuse,困惑,contribution,贡献,contract,合同,contact,联系,consume,消耗,convenient,方便的,intensiveintensiv,a.involving,a lot of activity,effort,or careful attention in a short period of time,密集,的,集中的,加强的,A lot of farming techniques have been abandoned because they were too labour-intensive.,许多农业技术因过于劳动密集而被放弃了。,形近词:,intend,打算,intense,强烈的,紧张的,intention,意图 打算,extensive,广泛的,expensive,昂贵的,rustrst,v.become covered with a kind of reddish-brown substance that is formed on iron and steel,生锈,n.Uthe reddish-brown substance that is formed on iron and steel,铁锈,Years,of being left out in the rain had rusted the,metal chairs,.,由于,常年淋雨,这些金属椅子生锈了。,The car was covered with rust.,车子,满身是锈。,antiquenti:k,n.C sth.made long ago that is valuable or interesting,古董,The,palace is full of priceless antiques.,王宫里全是价值连城的古董。,You cant give away Grannys old bookcase its a valuable antique.,你不能把奶奶的旧书架送人,那是一件很有价值的古董,licklik,vt.1.defeat,overcome,击败,,克服,2.pass ones tongue over sth.,舔,The computer people seem to have licked the problem.,电脑人员看起来已经克服了这个问题。,The child finished the dessert and then licked the plate.,孩子吃完了甜点后把盘子舔得干干净净。,strategic strti:dik,forming part of a plan or an aim to achieve a specific purpose or to gain an advantage,战略,的,The company has appointed a new marketing director to broaden its strategic expertise.,这家公司任命了一位新的营销主管来增加战略规划方面的人手,recessionrisen,n.C a period when the economy of a country is not successful,business conditions are bad,industrial production and trade are at a low level and there is a lot of unemployment,经济衰退,Many businesses are failing because of the continuing recession.,由于经济持续衰退,许多公司都倒闭了,。,同义词,contraction depression,scratchskrt,vt.cut or damage(a surface)slightly with sth.sharp or rough,抓,,搔,,划,scratch a and find a,scratch the surface,up to scratch,她的德语还不行。,her German was not up to scratch.,scratch ones head,儿子搔搔头皮又问:“要是妈妈生了第三个 呢?”,Son scratch ones head asks again:If mom gave birth to the third?,mianl
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