电子信息工程专业英语课件20.ppt

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1、第一节 词类形容词1.某些形容词作后置定语的情况(1)必须后置的形容词主要有present(存在的),else(其它的，别的),what(so)ever(任何的)This charge interacts with other charges present.(2)有些形容词常放在被修饰的名词后以加强语气 Even in this case,here are two directions possible.第一节 词类形容词2.形容词只能放在由some,every,any,no与thing,body,one组成的不定代词后的情况现在计算机没什么神秘的了。Now there is nothing

2、 mysterious about computers.这本书里有些新内容。This book contains something new.所有的电子设备都将数字化。Everything electronic will be done digitally.第一节 词类形容词3.两个形容词作定语的情况这本书对新老电路设计人员都是有帮助的。This book is a help to circuit designers both new and old.有许多问题有待于解决，既包括技术问题，又包括财政问题。There are many problems,both technological an

3、d financial,that remain to be solved.中子不带电，既不带正电，也不带负电。Neutron has no charge,neither positive nor negative.第一节 词类形容词4.”副词或数量状语+某些形容词”常用作后置定语该放大器的效率为50%，这是理论上所能达到的最大值。The efficiency of the amplifier would be 50percent,the maximum theoretically possible.图16-3画出了更为复杂一点的情况。Fig.16-3 shows a situation a b

4、it more complex.第一节 词类形容词5.单个形容词(uned形式)作方式状语借助于计算机，这台机器能自动的工作。With the help of a computer,this machine can work unattended.即使一个学生能看懂本书中每一个例题的每一句话，这也并不意味着他能独立地解题了。Even if a student can follow every line of every example in this book,that doesnt mean that he or she can solve problems unaided.第一节 词类形容

5、词6.形容词短语的两种功能(1)作后置定语、无穷大是大于任何数的一个量。Infinity is a quantity greater than any number.把弹簧拉得越长，拉伸所需的力就越大。The more the spring is stretched,the greater is the force necessary to stretch it.(2)作状语 由于计算机运算准确，速度快，它能节省人类大量的时间和劳力。Accurate in operation and high in speed,computers can save man a lot of time and

6、labor.The force acts perpendicular to the x-axis.第一节 词类代词1.物主代词作定语时所表示的主谓关系和动宾关系Physics is the most quantitative of the sciences,and we must become accustomed to its insistence upon accurate measurements and precise relationships if we are to appreciate its results.(主谓关系)物理学是各种科学中最讲究定量的，因此如果我们要理解其各种

7、结果的话，我们必须习惯于它坚持要有的精确的测量和各种精密关系，The questions of convergence are not simple,and their study forms an important chapter in modern analysis.(动宾关系)有关收敛的问题并不简单，对它们的研究构成了现代分析中重要的一章。第一节 词类代词2.代词one的一个特殊用法 科技文章中表示“有人,人们,大家”，一般不用people,英美科技工作者通常使用被动语态句或用one作主语的主动语态句 所谓最有效的算法，人们一般指最快的算法。By the“most efficient”

8、algorithm one normally means the fastest.在人们学习某一系统前，必须要定义和讨论一些重要的术语。Before one studies a system,it is necessary to define and discuss some important terms.第一节 词类代词3.用it,its,they,their等代词来代替后面主句中的人或物计算机在工作之前必须被告知要做什么。Before it can work,a computer must be told what to do.由于计算机能够在很短的时间内处理大量的数据，所以在时间有限的情况下计算机也许是解题的唯一工具。Because of its capacity to handle large volumes of data in a very short times,a computer may be the only means of resolving problems when time is limited.