Scientific English Writing Section I
Scientific English Writing Section Ⅱ
CHAPTER PARTS OF SPEECH Independent Work.1 1、对系统的控制是一门跨学科的( interdisciplinary)科目。 2、速度等于距离与时间之比。 3、图5-1Q点对晶体管工作的影响。 4、论文对其性能做了初步的分析 理解二进制数字系统( binary number systems)的基础 是要熟悉(一下)2的各次幂 power) 6、必须确定为走完( cover)这全部距离的一半需要多长的 时间。 7、图1-3画出了一枚玩具“水火箭
CHAPTER I PARTS OF SPEECH 1、对系统的控制是一门跨学科的(interdisciplinary)科目。 2、速度等于距离与时间之比。 3、图5－1 Q点对晶体管工作的影响。 4、论文对其性能做了初步的分析。 5、理解二进制数字系统（binary number systems)的基础 - 是要熟悉（一下）2的各次幂(power)。 6、必须确定为走完(cover)这全部距离的一半需要多长的 - 时间。 7、图1－3画出了一枚玩具“水火箭”。 Independent Work .1
CHAPTER PARTS OF SPEECH Independent Work 1 The control of systems is an interdisciplinary subject 2, Speed is equal to the ratio of distance to time. 3 Figure 5-1 Effect of Q-point on operation of transistor. 4\ An initial analysis of its performance has been made in this paper. 5 Basic to understanding the binary number systems is a familiarity with the powers of 2. 6 It is necessary to determine how long(a time)is required to cover half the total distance. 7、Fig.1-3 shows a toy“ water rocket:
1、The control of systems is an interdisciplinary subject. 2、Speed is equal to the ratio of distance to time. 3、Figure 5-1 Effect of Q-point on operation of transistor. 4、An initial analysis of its performance has been made in - this paper. 5、Basic to understanding the binary number systems is a - familiarity with the powers of 2. 6 、It is necessary to determine how long (a time) is - required to cover half the total distance. 7 、Fig. 1-3 shows a toy “ water rocket .” CHAPTER I PARTS OF SPEECH Independent Work .1
EXERCISES y1.本书讨论 CAD/CAM的技术,应用及范围( scope This book describes the technology, applications and scope of CAD/CAM 2.用三角( trigonometry)来描述电信号已证明是很有价值的。 The use of trigonometry to describe an electrical signal has proved very valuable. 3.感抗( inductive reactance)与电阻之比被称为该电路的Q The ratio of inductive reactance to resistance is called the Q of the circuit
EXERCISES 1. 本书讨论CAD/CAM的技术，应用及范围（scope). 2. 用三角（trigonometry)来描述电信号已证明是很有价值的。 This book describes the technology, applications and scope of CAD/CAM. The use of trigonometry to describe an electrical signal has proved very valuable. 3. 感抗（inductive reactance)与电阻之比被称为该电路的Q。 The ratio of inductive reactance to resistance is called the Q of the circuit
4.这里使用了这两种方法的结合来设计共发放大器 (common-emitter amplifier). Here a combination of these two methods is used to design a common-emitter amplifier. 5.这两个值相差( differ)多少? By how much do these two values differ? 6.当A与B交成60°时,该物体已转了多大的角度? By through what angle will the body have turned when A makes an angle of 60 with B? By how large an angle
4. 这里使用了这两种方法的结合来设计共发放大器 (common-emitter amplifier). Here a combination of these two methods is used to design a common-emitter amplifier. 5. 这两个值相差（differ）多少？ By how much do these two values differ? 6. 当A与B交成60°时，该物体已转了多大的角度？ By [through] what angle will the body have turned when A makes an angle of 60 °with B? By how large an angle …
CHAPTER PARTS OF SPEECH Ⅱ、 NUMERALS 1). The ways to express a fraction general form 7/9 seven ninths a(one) half 零点几伏 a few/several tenths of a volt
1). The ways to express a fraction (1) general form 7/9 seven ninths 1/2 a (one) half 零点几伏 a few/several tenths of a volt CHAPTER I PARTS OF SPEECH Ⅱ 、NUMERALS
(2) special form 百万分之三 3 parts per(in a) million in 10 千分之七 seven parts per(in a) thousand in103
(2) special form 百万分之三 3 parts per (in a) million in 106 千分之七 seven parts per (in a ) thousand in 103
EXEMPLES 这个元件上的电流为零点零几安 The current through this component is a few hundredths of an ampere 这两个参数之差为百万分之十九。 These two parameters differ by 19 parts in a million The difference between these two parameters
EXEMPLES 这个元件上的电流为零点零几安。 The current through this component is a few hundredths of an ampere. 这两个参数之差为百万分之十九。 These two parameters differ by 19 parts in a million. The difference between these two parameters is…
CHAPTER PARTS OF SPEECH 2). Numerals as pre-modifier the+名词 倍数 that of 分数 what从句 y This voltage is 80 times the signal applied to the amplifier v Its speed is three tenths that oflight. y This current is two fifth what it was 该电阻器上的电压为总电压的五分之 The voltage across this resistor is two fifths the total voltage
CHAPTER I PARTS OF SPEECH 倍数 分数 the + 名词 + that of … what 从句 This voltage is 80 times the signal applied to the amplifier. Its speed is three tenths that of light. This current is two fifth what it was. 该电阻器上的电压为总电压的五分之二。 2). Numerals as pre-modifier The voltage across this resistor is two fifths the total voltage
CHAPTER PARTS OF SPEECH 3). Translation techniques for a special pattern Representation of the increase in the number of times n times+比较级= n times as+原级+as y这根导线比那根长四倍。 This wire is five times longer than that one y This value is nearly 4.5 times greater than the ideal one. 该数值约比理想值大3.5信 ※这个系数比那个小九倍。 This coefficient is 10 time less than that one. This coefficient is a factor of 10 less than that one
3). Translation techniques for a special pattern Representation of the increase in the number of times CHAPTER I PARTS OF SPEECH 这根导线比那根长四倍。 This wire is five times longer than that one. This value is nearly 4.5 times greater than the ideal one. 该数值约比理想值大3.5倍。 ※ 这个系数比那个小九倍。 ? This coefficient is 10 time less than that one. This coefficient is a factor of 10 less than that one. n times +比较级 = n times as + 原级 + as