科技英语7句子成分的强调手段.ppt

第七章 句子成分的强调手段 §7.1 强调句型 先做下面一个改错题： It is in 1984 which China launched her first comsat（通讯卫星）. 1、句型： +被强调的成分 + that [which; who] + … It is was 主语 宾语 状语 介词宾语 注：① “be”的形式还可以是“has been;will be;may be;must be;must have been”等。 §7.1 强调句型 ② “状语”可以是“副词；介词短语；状语从句；不定式（目的）”。 ③ “that”一般可用于强调任何东西；“which”只能用于强调事物的主、宾、介宾；“who”只能用于强调人的主语；强调介宾时，可用“介词+which [whom]”或用“that [which; who] ……+介词（在句尾）”。 §7.1 强调句型 2、译法 （1）一般译成“正是★；是★；就是；只是”。 （2）当强调疑问词、连接代词、连接副词时，要译成“到底；究竟”。 §7.1 强调句型 3、例句 It is when an object is heated that the average speed of molecules（分子）is increased. It was Faraday who first discovered electromagnetic induction（电磁感应）. §7.1 强调句型 When an electron and a proton（质子）attract each other, it will be the tiny（微小的）electron that will do most of the actual（实际的）moving. It is the nurse（护士）with whom the patients（病人）spend most of the time in a ward room（病房）. It is not clear yet why it is that this is so. §7.1 强调句型 Fig. 1 – 3 shows how it is that a coil of wire（导线圈）induces（感应）a current in another coil when the current in it is turned on or off. ***Computer software has become a driving force. It is the engine（发动机）that drives（推动） business decision making（商务决策）. §7.1 强调句型 ***P = 1.5 P when m =1. This is important because it is the maximum power that relevant（有关的）amplifiers（放大器）must be capable of handling（处理）without distortion（失真）. §7.1 强调句型 1、“助动词‘do (does, did)’+ 动词原形”→ 译成“的确★；确实★；一定；真的；务必” β does vary with temperature. Mathematical analysis shows that these methods do work, but it is not clear yet under what conditions it is that they may be used. §7. 2 利用某些词汇来强调某些成分 (There does exist a generation gap（代沟）between parents and children.) The current starts to flow at the very moment the circuit is closed. 2、“形容词’very’ + 名词”→ 译成“就★；正；最；一” §7. 2 利用某些词汇来强调某些成分 The alternating current is the ve