代词与名词.ppt

1、代词：物主代词作定语表示与被修饰词之间的关系主表关系主谓关系动宾关系,主表关系,这一关系中被修饰的名词来自形容词，最常见的是presence和absence,分别来自形容词present和absent. Light is needed by the green plants to make them green and they cannot survive for long in its absence.,主谓关系:,被修饰的名词来自不及物动词 It is important to recognize that the gain coefficient is also a function

2、of time through its dependence upon the population difference (dependence来自不及物动词depend),主谓关系,被修饰的名词来自及物动词 This property justifies our choice of the above constant as positive,动宾关系,这一关系中被修饰的名词必定来自及物动词 The result of an experiment forced the abandonment of Thomsons model and its replacement by a new mo

3、del,代词one 的一个特殊用法,在科技文中要表示“有人，人们，大家”这一概念时，一般不用people这个词，通常用被动语态句或用one作主语的主动语态句。 No one can see radio waves One often thinks that friction is undesirable Doing so serves no one better,代词,用it, its, they, their 等代词来代替后面主句中的人或物 Before they are solved, all the problems must be expressed in binary.,名词,表示尺

4、寸，大小等的名词短语作后置定语 They installed a 250-w generator the size of a teapot . Basic Electronics is a book much the same size as this one Here m is any number not zero.,名词,用不带冠词的单个名词用作方式状语 The device can be computer controlled Heat treating the tool is necessary. The material in this book has been class te

5、sted. These components are temperature sensitive.,名词,名词短语用作前面整个句子或某一部分的同位语，以避免使用结构松散的并列句或非限制性定语从句。 When we use this multiplication method, it is not necessary to figure out all possibilities , a procedure which is often very lengthy, or even impossible from a practical point of view.,名词,名词短语位于主语前作主语

6、的同位语，以避免使用系表结构的并列分句，使整个句子的结构显得紧凑，平衡。 An instrument for measuring electric resistance, the ohmmeter is widely used in electrical engineering. A new technology introduced in the 1960s, laser can pierce the hardest substance such as diamond.,名词与介词的搭配模式名词+Of + A + 介词+B” 此模式中的A和B 均为名词，使用这种模式的句子显得非常地道。,1）

7、该“名词”来自普通的抽象名词,This section deals with the effect of temperature on transistors. The superiority of electronic telescopes to optical telescopes is obvious. Laser beams are used to determine the exact distance of the earth from the moon.,名词,该名词来自不及物动词 The revolution of the earth around the sun causes

8、 the changes of the seasons. 该名词来自及物动词 The removal of enough heat from water may change it to ice.,几种特殊的名词复数形式,缩略词的复数形式 如果缩略词为小写，为避免造成误解，其复数形式要用- s来表示；若是大写字母，其复数形式用- s 或-s表示。 Manufacturers provide a large variety of ICs/ICs designed to effect proper interfacing These systems include PCs running Micr

9、osoft Windows.,几种特殊的名词复数形式,字母及数字的复数形式多用-s来表示 All the Rs and Cs are made equal Note that the gs have canceled out in the calculation. 当数字小于1时，所修饰的名词需用复数形式 The odometer of a car has a resolution of 0.1 miles,几种特殊的名词复数形式,多个名词短语在共用一个名词中心词时，通常用单数名词表示复数的含义，但有时也可以使用复数名词 On this scale, the normal freezing a

10、nd boiling point of water are taken to be 32F and 212F, respectively.,几种特殊的名词复数形式,缩略词的复数形式应该置于点之前。 Figs.(1-2)and (1-3)show this process The well-grounded reader may skip Chaps.1,2,and 3.,几种特殊的名词复数形式,Time , work,energy 等不可数名词在特定情况下也可以变成可数名词 The works of W and N are zero because they are perpendicular

11、 to the motion.,几种特殊的名词复数形式,表示“试验表明-”时，多数情况用单数，但也有用复数形式的，而且不用冠词。 Experiments confirm this point.,I. 译成英语，注意正确使用代词 1.The detection process can be performed in either of the following two days. 2.There is a capacitance across the junction. Its presence/existence will cause problems at high frequencies

12、. 3. This baseball will soon come to rest because of its interaction with the ground. 4.Our choice of this coefficient as 1 is correct. 5. This is due to its use of relays rather than electronic devices.,6.Since transformers are large, heavy, and expensive, their elimination from the circuit will re

13、sult in considerable savings. 7.Emphasis is put on floated gyroscopes because of their utilization/use as a control component. 8. From its definition as the ratio of a force to a length, we can see that k has the same unit as work (does). 9.In the equation, that factor is ignored. Its inclusion here

14、 would merely complicate the proceedings.,10. In their discussion of that problem, scientists noticed this point. 11. Since feedback plays an important role in electronic circuits, its study is of great importance. 12.The black hole is invisible/cannot be seen, but its presence/existence can be dedu

15、ced. 13. Our analysis of the machine is of great significance,14. This facilitates their use in circuit analysis. 15. The success in design depends on our correct choice of the circuit.,III. 1.In the equation above, all hs are the hybrid parameters. 2. Between times 2 and t 3 the diode appears to be

16、 on. 3. In this circuit, there are three emfs. 4.The mass of the standard pound is equal to 0.4535924277 kilograms. 5. All as and bs in Eq.5-1 are related to the impendance. 6. This section describes the advantages of AC over DC,7. We must take the effect of temperature on/upon semiconductors into a

17、ccount. 8. In this case, the variation of output with input is very small. 9. This curve shows the dependence of distance on/upon speed. 10. The use of the atomic energy as the source of power is very important. 11. The separation of impurities from the ore is very difficult. 12. We are all familiar with the definition of current as the flow of charge.,IV Energy may be thought of as the ability to do work. When we say that something has energy, we mean that it is capable of exerting force on something else and doing work on it