They can be used to amplify the small output current from a logic chip so that it can operate
他们放大逻辑芯片输出的小电流，从而来驱动灯、继电器或其他大电流器件
A transistor may be used as a switch~and asan
三极管也可用于开关（或是完全导通，流过最大电源，或是完全关断，没有电流流过）和放大器（总是不完全导通）
Transistors can be damaged by heat when soldering so if you are not an expert it is wise
三极管会被焊接时产生的热量所损坏，因此如果你不是这方面的专家，那么最好在焊接点与三极管管身之间的管脚上夹一个散热
Whether the device in question be voltage controlled or current controlled,the amount of
不管讨论的器件是受电压控制还是受电流控制，控制信号所需的功率一般远小于被控信号所用的功率
It is a fundamental rule of physics that energy
能量既不会被创造也不会被消灭，这正是物理学的一个基本法则
If this Law is true and an overwhelming mass of experimental data suggests that it is-then iti
如果这条定律是正确的—惊人的实验数据说明它是正确的—那么就不可能制造出一种器件，该器件可以吸收小能量，然后神奇的把小能量转换为大能量
Usually,machines fail even to meet this limit,losing some of their input energy in the f
通常，机器不能达到这个上限，会以热的形式丢失掉部分输入能量，该部分能量辐射到周围的空间，因此这部分能量不属于输出能量部分
Not only would such a perpetual motion machine prove that the Law of Energy~
这样的永动机不仅能够证明能量守恒定律不成立，而且它能够引导一场前所未有的技术革命，因为它可以循环的给自身提供能量并产生免费的多余能量
The key to understanding how amplifiers can exist without violating the Law of Energy co~
明白放大器能够存在而不违反能量守恒定律的关键在于有源元件的性质
The Law of Energy conservation is not violated because the additional power is suppli 能量守恒定律并没有被违背，因为增加的功率是由外部电源提供的，通常是直流电池或等效电源
Because the efficiency of an amplifier is always 100 percent or less,one can never be m
由于放大器的效率一定为100%或小于100%，任何东西都不可能被做成具有永动功能的装置
One key to the usefulness of these little circuits is in the engineering principle of feedback,particularly negative feedback,which
这些小电路发挥作用的关键在于工程学中的反馈原理，特别是负反馈，其构成了几乎所有自动控制过程的基础
The peak-to-peak amplitude of this amplifier's
Output between cutoff and saturation remains
放大器处于截至饱和状态间的峰峰值保持不变
Large forward transfer function
正向传递函数很大
Virtually nonexistent reverse transfer function
事实上不存在反向传递函数
Large input impedance,Zin
输入阻抗很大，Z（任何信号都可加到运算放大器上而不存在带负载问题）
Small output impedance,Zout
输入阻抗很小，Z（运放提供的功率没有限制）
Wide bandwidth
带宽宽
Infinite gain
增益无穷大
This polarity inversion from input to output is due to the fact that the input signal is being se
输入与输出间极性相反是由于输入信号被夹在运放的反向输入端，因此其相当于反相放大器However,if we apply a constant,positive voltage to the input,the op-amp output will fall
Negative at a linear rate,in an attempt to produce the changing voltage across the capacitor necessary to maintain the current est
可是，如果我们将产生一个恒定的正电压加到输入端，运放的输出将为一个线性的负电压，为了在电容上产生一个变化的电压，有必要维持电阻端电压产生的电流不变
Transmitter:the transmitter converts the message into a signal,the form of which is suitable for transmission over the communicat
发信机。发信机把消息转变为信号，信号形式要适合在通信信道中传送
Receiver:the receiver can be thought of as the inverse of the transmitter ,it changes the received signal back into a message and passes the message onto its destination which
接收机：接收机可以看作是与发信机相反的东西。他把接收到的信号变回成信息，并把消息传给终端，这个终端可以是一台扬声器、电传打字机或一个计算机数据库
This unwanted noise may cause distortions of sound in a telephone,or errors in a telegraph
这种人们不希望存在的噪声会引起电话声音失真，电报报文或数据出现差错
Groups or supergroups are moved as single units by the communications equipment and it is not necessary for the radios to know how many channels are involved
通信设备把群或者超群做为一些单一的单元来传送。对于无限设备来说，并不需要知道含有多少路。
A radio can handle a supergroup provided sufficient bandwidth is available
只要有足够的带宽，无线电可以处理一个超群
The size of the group is a compromise as treating each channels individually involves far more equipment because separate filters,modulators and oscillators are required 群的大小采取折中考虑确定，因为处理每一路都需要独立的滤波器、调制器、振荡器，这比每个群所需的设备要多得多
However the failure of one module will lose all of the channels associated with a group
但若有一个部件失效，则会失去与这个群相关的全部话路
The signal created by sampling our analog speech input is known as pulse amplitude 对模拟话音输入取样所产生的信号称为脉幅调制信号
It will be seen later that most of the advantages of digital modulation,come from the transmitted pulses having two levels only,this being known as a binary system 数字调制的大多数优点来自于发送的脉冲只有两个电平，这种系统称为二进制系统
To do this it is necessary to employ syncnronized switches at each end of the communication link to enable samples to be
要做到这一点，必须在通信链路的两端采用同步开关，使对来自各条电路的抽样值能依次轮流传送
Although each user only has periodic short time slots,the original analog signals between samples can be reconstituted at the receiver
虽然每个用户只有一些周期性的短视隙，抽样值之间的原来的模拟信号却可在接受机中重新构成
The advantages of optical fiber as a transmission medium are due to the fact that the fiber is made of a dielectric and the signal
光纤做为传播媒介的有点在于它是由绝缘体制成而且传送的信号是光。
In this case the information source provides an electrical signal to a transmitter comprising an electrical stage which drives an optical source
发信源提供电信号给发射机，发射机组成一个电子平台来驱动光源以完成对光载频的调制The optical source which provides the electrical-optical conversion may be either a semiconductor laser or light emitting diode
光源是由发光二极管或半导体激光器组成，他完成光-电变换
Thus there is a requirement for electrical interfacing at either end of the optical link and at present the signal processing is usually per
因此，在光系统链路的两端都要求有电接口，并且再现阶段，信号处理通常是通过电路实现的
In the telephone system,the use of fiber optics for interconnecting central offices within a metropolitan area and for lower levels in the
在电话系统中，光纤在主要城市地区中心交换局间互连和低级交换中的使用继续迅速增加These wideband subscriber loop systems would provide access to services such as pictu 这些宽带用户环路系统将为可视电话，视频娱乐节目等业务提供通路
The means of standardizing these various broadband communication services so that they can be provided in an integrated manner is no other than the broadband integrated serv
将这些不同的宽带通信业务标准化的最好方法莫过于采用宽带综合业务数字网，这样能够使这些服务以集成的方式提供
Fortunately,the remarkable advances in the field of electronics and fiber optics have led to
The maturation of broadband communication
幸运的是，电子及光纤领域的显著近战导致了快带通信技术的成熟
ATM allocates bandwidth on by constructing virtual channels and virtual paths between source and destination points on the ATM net
ATM通过在其网络边界内的起点和终点之间建立虚拟信道和虚拟通路，按需分配带宽
The nuances and peculiarities of digital video
Make it impractical to transport real-time video in its native uncompressed format over
数字视频的细微差别和特别之处也使得在ATM上传输天然的、未经压缩的实时视频是不切
实际的
The most important of these components is the central processing unit (cpu),or microprocessor, which acts as the “brain” of your computer.
这些组件中最重要的是作为计算机“大脑”的中央处理器，也叫微处理器
B ecause hard disks can hold massive amounts of information, they usually serve as your computer’s primary means of storage, holding almost all of your programs and files.
因为硬盘可以容纳大量的信息，它们通常用作计算机上主要存储器，保存几乎全部程序和文
件
When you move the mousse with your hand, a pointer on your screen moves in the same direction. (T he pointer’s appearance might change depending on where it’s positioned on your screen.)Where you want to select an item, you point to the item and then click( press and release)the primary button, Pointing and clicking with your mouse
is the main way to interact with your computer.
当你用手移动鼠标时，屏幕上的指针会向相同的方向移动（指针的外观可以改变，这取决于
拟将其置于屏幕上的什么位置）如果要选择某个项目先指向该项目，然后“点击”(按住不放)主按钮，使用鼠标指出并点击是与计算机交互的主要方式
Both types produce sharp images, but LCD monitors have the advantage of being much thinner and lighter .CRT monitors, however, are generally more affordable.
两种类型都可产生清晰的图像，但LcD显示器具有薄，轻的优势，而crt显示器通常价格较
便宜
The two main types of printers are inkjet printers and laser printers. Inkjet printers are the most popular printers for the home. They can print in black and white or in full color and can produce high-quality photographs when used with special paper.
打印机的类型有两种，喷墨式打印机和激光打印机。喷墨式打印机是供家庭使用的最流行的
打印机，它们可以进行黑白或全色打印，使用特殊纸张时打印出高质量的照片。
An operating system (os) is a collection of system programs that together control the operation of a computer system.
操作系统（OS）是控制计算机系统运行的系统程序的一个集合
In essence, a single-user operating system provides access to the computer system by a single user at a time.
从本质上来说，单一用户操作系统一次只能让一个用户访问计算机系统。
In the early days results were monitor screen.
早期的多用户计算机提供多个终端，（键盘和相关的显示器）。这些终端设备将使用者的命
令传送到多用户计算机的主机上，由主机来处理，并且处理的结果将会在相关的显示器上显
示出来。
The third generation mobile in Europe ,,,,,(voice ,data, video and multimedia) networks.
目前在欧洲已经移动通信系统（3G）其目的是要综合第二代系统的所有不同业务并覆盖更
广泛的业务（话音，数据，多媒体）范围，而且还要也固定电信号网络的技术发展保持一致和兼容。
The ideal mobile telephone unlimited areas.
理想的移动电话系统将在有限的给定频段上工作，但却可以向任意多的地区中几乎是任意的用户提供服务。
A basic cellular system (MSC) hand-held unit.thebase stations
consist …..and receiving antennas. the base station serves as ….linkes to the MSC 一个基本的风我系统有移动站，基站和一个移动叫控中心（msc）组成。一个移动站包括无线电接收机无线和控制电路，这种控制电路可以安装在传输系统或手机里，基站包括几台发射机和借手机能同时进行全双工通信，全双工通常还有用以支持收发无线电的天线塔。，在所有的蜂窝移动用户间建立了一座桥梁，通过电话线或微波连到MSC基站把同步移动电话连接起来。
CDMA….linearly. the key to CDMA …random noise
CDMA也不认为相遇的数据帧会造成数据间的混淆;相反，CDMA假定多路信号之间是线性相加。CDMA的关键在于能够提取出希望得到的信号，而把其他信号当做随即噪声加以抑制。
1.Voltage attempts to make a current flow and current will if the circuit is complete. 电压使电流流动，如果电路是闭合的电流就会流动。
2.Voltage is a diffevence between two points,but in electronics we often refer to voltage at a point meaning the voltage tiffevence between that point,and a reference point of 0V.
电压是两点间的差值，但在电子学中我们通常说某一点上电压其实是这点跟0V参考点的之间的一个电压差。
3.Noise is relatively easy to eliminate from difital signals becarse it is easy to distinguish from the clesired signal which com only have particular values.
噪声是相对容易从数字信号中消除的，应为有用信号只取特定的值，所以噪声就很容易与有用信号区别开。
4.The forward voltage drop of a diode is almost constant|wharever the cuvrent passing througe the diode|so they have a vory stecp cuaracteristic.
无论流过二极管的电流是多少，二极管的正向压降几乎为一个常数，因此二极管有一个非常陡峭的特性曲线。
5.All diodes have maximum reverse voltage (usually 50V or mare) and if this is exceeded the diode will fail and pass a large curvent in the reverse direction. 所有的二极管都存在一个最大的反向电压（通常为50V或更大）如果这个电压被超过，二
极管会损坏，并且反向通过一个很大的电流。
6.Small signal cliodes can be damaged bu heat when soldering .but the nisk is small unless you are using a qermaniun diode.
焊接时产生的热会损坏信号二极管，但除非你用的是锗二极管，否则这种风险很小。
7.Silicon diodes are becter because they are less easily damaged by heat when soldering they have a lower resistance when conducting,and they have very low leakage currents when a revrse voltage is applied.
硅二极管性能更好，因为它不容易被焊接时产生的热损坏，导通时电阻更低并且如反向电压时，漏电流很小。
8.The transmitter converts the message into a signal ,the form of which is suitable tor transmission over the communication channel.
发送机把消息转变为信号，信号形式要适合在通信信道中传输
9.It changes the received signal back into a message and passes the message onto which may be a loudspenker,teleprinter or computer data bank.
它把接收到的信号变回成信号，并把消息传输给终端，终端可以使一台扬声器，电传空机或计算机数据库
10.A radio can handle a supergeoup provided sufficient hand width is available. 只要有足够的带宽，无线电可以处理一个超级群。
11.To do this it is necessary to employ synchronized slritches at each end of the communication link to enable samples to be transmitted in turn,from each of several circuits.
要做到这点必须在通信链路的两端采用同步开关，使对来自个电路的抽样值能依次轮流传送。
12.Altheach each user oirly has periodic short time slots the original analog signals between samples cam ne recomstituted at the receiver.
虽然每一个用户只有一些周期性的短时隙，原来的模拟信号跟抽样值之间可以再接收机中从新构成。
13.The signal created by sampling our analeg speech input is known as pulse amplitude modulation.
我们模拟语言输入取样所产生的信号称为脉冲幅度调制。
14.It will be seen later that most of the advantaqes of digital modulation come from the transmitted pulses naving two levels onlt,this being known as a binary sysrem. 数字调制的大多数优点来自发送的脉冲只有两个电平，这种被称为三进制系统。
15.We an nuv define telecommunication......over long distances
现在的我们定义远程通信为信号源到目的地远距离传输或传递信息的过程。
16.the information source proides......of the liglct wave carrier.
信源提供电信号给发射机，发射机组成一个电子平台块驱动光源以完成对光源以完成对光载波的调制。
17.The optical source which praides the.....or light emitting diode(LED).
光源是由发光二极管或半导体激光器构成的，它完成光电转换
1.Volrage is a difference between two......point of 0V(zero volts)
电压两点之间的差值，但在电子学中我们常常说的某一点上的电压其实是指这点和0V参考点之间的一个电压差.
2.The symbol I is used for current in equations.
符号I表示方程中的电流。
3.All electronic circuits suffer from "noise"...the desired signal
所有的电子电路都会受到“噪声”干扰，噪声是混合在有用信号中的无用信号.
4.However,all diodes have a maximum ...(usually 50V or more)...this is called breakdown.
所有的二极管都存在一个最大的反向电压（通常为50V或更大）如果这个电压被超过，二极管会损坏，并且反向通过一个很大的电流。
5.Small signal cliodes can be damaged bu heat when soldering .but the nisk is small unless you are using a qermaniun diode.
焊接时产生的热会损坏信号二极管，但除非你用的是锗二极管，否则这种风险很小。
6.for general use,where the size...Silicon diodes are becter because they are less easily damaged by heat when soldering they have a lower resistance when conducting,and they have very low leakage currents when a revrse voltage is applied. 一般场合，正向压降的大小不是很重要，硅二极管性能更好，因为它不容易被焊接时产生的热损坏，导通时电阻更低并且如反向电压时，漏电流很小。
7.If you are new to...NPN transistors.
如果你是电子学的初学者，那么最好从学习如何使用NPN三极管开始.
8.Transistors can be...joint and the transistor body.
三极管会被焊接时产生的热量所损坏，应为如果你不是这方面的专家，那么最好在焊接点与三接管管身间的管脚上夹上一个散热片.
9.If you find that a...certainly needs a heat sink!
如果你发现三极管变得太热无法触摸，那么它当然需要一个散热片.
10.If the..OK,theLED...is released
如果三极管是好的，那么当按下开关时发光二极管应该亮，而松开开关时发光二极管不会亮.
11.Not only would such a .... excess power gor "gree".
这样的永动机不仅能够证明能量守恒定律不成立，而且它能引导一场前所未有的技术革命，因为它可以循环的给自身提供能量并产生免费的多余能量.
12.The key to undersranding how......behavior of active devices.
明白放大器能够存在而不违反能量守恒的关键在于有源件的性质.
13.The transistor other acrive......"raw"DC...power source.
放大器内部的三极管或其他有源元件只有利用电池或其他电源提供的原始的直流功率对输入信号的波形进行放大.
1.Another component is random...(RAM)https://www.doczj.com/doc/654831214.html,puter is on.
另一种组件是随机存储器，当计算机工作时，CPU用它来临时存储信息.
2.Because hard disks can...all of your programs files.
因为硬盘可以容纳大量信息，它们通常用作计算机上的主要存储器，保存几乎全部程序和文件.
3.They can print in black...with special paper.
他们可以进行黑色或全色打印，使用特殊纸张时，可打印出高质量的照片。
A hierarchy can be set up with….
可以构成一个分级得体系，即以若干路组成一个‘群’，若干群组成一个超群，再若干超群组成一个主群或极群。
A radio can handle a supergroup…
只要有足够的带宽，无线电可以处理一个超群。
The advantages of optical fiber as…
光纤作为传播媒介的优点在他死后由电介质（玻璃或塑料）制成而且传送的信号是光。The transmission medium consists ….
传输媒介由光纤组成。光接收机包含一个光检测器，用来驱动下一级电子平台，已完成对调光载波的解调。
The third generation mobile communication system ….
目前在欧洲正在开发第三代移动通信系统，其目的是要综合第二代系统的所有不同业务并覆盖更广泛的业务（话音，数据，视频，多媒体）范围，而且还有与固定电信网络的技术发展保持一致和兼容。
The base stations consist of several transmitters …
基站包括几台发射机和接收机，能同时进行全双工通信，通常还有用以支持收，发无线电的天线塔。
The success of mobile systems across the world….
世界范围移动通信的成功标志着通信正在向着更加个人化，方便化得通信系统迈进。
英语中的句子可以按其作用或者按其语法结构(即句子的形式)两种标准分类。下面是具体的分类依据和结果。 (1)按其作用或使用目的，句子可分为： 陈述句：This is a truck. 这是一辆卡车。 疑问句：Is this a truck? 这是卡车吗? 祈使句：Drive the truck away. 把卡车开走。 感叹句：What a big truck it is! 多么大的卡车! 按语法结构，句子可分为：(2)简单句：I am busy. 我很忙。 并列句：I am busy washing, but he is playing Majiang with them. 我在忙着洗衣服，但他却在跟他们打麻将牌。 复合句：Although I am busy washing, he is playing Majiang with them. 尽管我在忙着洗衣服，他却在与他们一块打麻将牌。 一、陈述句:用于说明一件事，表示一种看法或表达某种心情的句子，都是陈述句。陈述句分为肯定陈述句和否定陈述句。 1肯定句 He is a middle school teacher. 他是一位中学老师。(一般现在时) She is cleaning the room. 她正在收拾屋子。(现在进行时) They have visited the museum. 他们已经参观过这所博物馆了。(现在完成时) He did a lot of washing yesterday. 他昨天洗了好多衣服。(一般过去时) They had already finished quarrelling when I came. 我来时他们已经争吵完了。(过去完成时) The meeting will begin at once. 会议马上就要开始了。(一般将来时) 2否定句 (1)使用not否定： He isn't a worker. 他不是个工人。(一般现在时) She doesn't do the cleaning every day. 她不是每天都做卫生。(一般现在时) I haven't had my breakfast yet. 我还没有吃早点。(现在完成时) You didn't do your homework seriously. 你没有认真地做你的作业。(一般过去时) You mustn't take her to your parents. 你千万不要把她带到你的父母那里去。(情态动词) She needn't quarrel with him. 她没必要跟他吵。(情态动词) The house won't be painted. 这所房子将不粉刷了。(被动语态将来时) She might not notice you.
关于科技的英语名言 导读：本文是关于关于科技的英语名言的文章，如果觉得很不错，欢迎点评和分享！ 1、在这个科技进步得飞快的世界，你想要活下去，就要不断地学习。 In this world of rapid technological progress, if you want to survive, you must continue to learn. 2、抓科技必须同时抓教育。 Science and technology must be emphasized at the same time as education. 3、科技越发达，人际关系越淡薄，这是社会的进步，还是倒退呢？ The more advanced science and technology, the less interpersonal relationship. Is this social progress or regression? 4、人类毎获得一项科技上的重大成就，人类就会又获得一次惨痛的非自然与自然的灾害和灾难。 Without a major scientific and technological achievement, human beings will get another tragic natural and natural disasters and disasters. 5、真正成功的科技天才在于使人不再有求于他。只有庸才才拼命要让自己显得不可或缺。
The real success of technological genius lies in the fact that people no longer need him. Only mediocrity strives to make itself indispensable. 6、新时代的科技让所有人情世故都像过眼烟云。 The technology of the new era makes all the worldly wisdom look like a cloud of smoke. 7、知识是一宝库，而实践就是开启宝库大门的钥匙。 Knowledge is a treasure house, and practice is the key to open the door of the treasure house. 8、我很不适应，祖国人民一提办事就要提钱，科技是属于全人类的！ I am not suited to it. The people of our motherland have to raise money whenever they do business. Science and technology belong to all mankind. 9、在过去人们面临的危险是变成奴隶，而在将来危险是人类可能变成机器人。 In the past, people faced the danger of becoming slaves, but in the future, the danger is that human beings may become robots. 10、一个尊重商业和科技的社会总是会进步的。 A society that respects business and technology will always progress.
高一英语作文经典句子与模板 常用句型： 1. Only in this way can we … 只有这样，我们才能…… 2. It goes without saying that... 不用说...(意思是：论述的内容是显而易见的） 3. It can be said with certainty that... ...是肯定的。 4. As the proverb goes 有句谚语是这样说的...;常言道... 5. It has to be noticed that...必须引起注意的是... 6. It`s generally recognized that...通常认为... 7. What calls for special attention is that... .需要引起特别注意的是... 8. There’s no denying that....不容否认... 9. Nothing is more important than the fact that...没有比这更重要的是... 10. what’s far more im portant is that..更重要的是... 11. As time goes by,.....随着时间的流逝 12. There is no doubt that...毫无疑问... 13. As far as I'm concerned, I think....就我而言，我认为... 14. It is said that...据说... 15. It is important for sb to do sth. 做某事对某人很重要 16. Compared with A, B is more ...与A相比，B更... 17. in my opinion 在我看来 18. It is high time that we did sth.是我们做..的时候了。 19. Only in this way, can we solve this problem properly.只有这样我们才能妥善解决这个问题。 20. sth is so...that...如此..以至于.. 21. not only ...,but also...不仅...而且... Not only is English important to us, but it is also a must in our daily life. 22. To be honest To tell the truth 老实说来 23. too..to 太..以至于不能.. 24. On one hand,. .on the other hand,..一方面.. 另一方面... 25. With the development of science and technology, more and more people believe that…随着科技的发展,越来越多的人认为…… 段首句 1. 关于……人们有不同的观点。一些人认为…… There are different opinions among people as to ____ .Some people suggest that ____.
英语写作句型
句型一：分词作状语 Moved by the kids in the village, I decided to donate all my money to them. 被汶川的孩子们感动了，我决定把我所有的钱都捐给他们。 Seeing Dad working so hard, I could not help bursting into tears. 看到父亲工作这么辛苦，我忍不住怆然泪下。 点评：分词作状语可以用来替代时间、条件、原因等状语从句，让文章显得更加简洁，同时功底更深。 分词作状语的用法： 当状语从句的主语与主句的主语一样时，可直接省略从句的主语，并把从句的谓语改成分词（主动语态改成现在分词，被动语态改成过去分词），从而构成分词作状语结构。 【例1】When I see Dad working so hard, I could not help bursting into tears. →Seeing Dad working so hard, I could not help bursting into tears. 【例2】Because I was moved by the kids in Wenchuan, I decided to donate all my money to them. →Moved by the kids in Wenchuan, I decided to donate all my money to them.
句型二：副词提前 Obviously, one of the best ways to keep healthy is to do sports. 显然，保持健康最好的方法之一是做运动。 Eventually, every child will leave home to lead his own life as a fully independent adult. 最终，每一个孩子都会离开家庭去过自己的生活，成为一个完全独立地成年人。 点评：如果要选一种最让人心生感触的句型，副词提前的做法即使不是最好，也是之一了。前置的副词让作者还没说出具体的事件，内心的想法已经呼之欲出。这正是这种无比简单的语法现象所焕发出的魅力所在。 除了提升情感效果之外，副词提前也是让文章结构清晰的一个非常好的办法。我们常用的firstly, furthermore, finally等等所谓的“逻辑词”都是属于这一种类型，童鞋们要时刻想着去用它。 注意事项： 用来提前的必须是——副词！ 除了上面给出来的2个例句之外，再分享一篇作文里一个较难的句子，作文题目是“我最难忘的回忆”。 【例】... Oddly enough, my most precious memory lies in the days when I was ill in hospital...
精选高中英语写作句子三篇 【篇一】精选高中英语写作句子 1、我自信，我成功。 I’m confident, I success. 2、信心是成功的法宝。 Confidence is the first secret of success. 3、提高一分，干掉千人。 Raise a point, killing one thousand people. 4、行者常至，为者常成。 Walkers to continually, a person often become. 5、奋起飞翔，路在脚下。 Fly up, road in the foot. 6、始于信念，成于坚持。 Began in the faith, to adhere to. 7、今朝勤学苦，明日跃龙门。 Study hard today and yue longmen tomorrow. 8、经济要发展，高考是保障。 To economic development, the college entrance examination is the guarantee. 9、一点一点地进步，不求贪多。 Progress bit by bit, not too much. 10、笑对人生，抖擞精神向未来。 Smile to the life and moved on to the future.
11、含泪播种的人一定能含笑收获。 The sow in tears will reap with a smile. 12、人若勇敢就是自己的朋友。 If a man be brave is her best friend. 13、厚积分秒之功，始得一鸣惊人。 Who is a vehicle, a blockbuster. 14、人若软弱就是自己的敌人。 We are your own worst enemy if we are weak. 15、宁可辛苦一阵子，不要苦一辈子。 Would rather hard for a while, don’t be bitter for a lifetime. 16、鞋底磨穿了，不等于路走到了头。 Shoes wear out, it’s not the way to the head. 17、用心看卷，专心答题，细心复查。 Watching attentively volume, concentrate on problem solving, careful review. 18、智者一切求自己，愚者一切求他人。 All the wise for himself, a fool all for others. 19、把汗水变成珍珠，把梦想变成现实！ Sweat into pearl, to turn the dream into reality! 20、不经一番寒彻骨，怎得梅花扑鼻香。 How do without, would have no rainbow had the eyes no tears.
翻译是把一种语言里已经表达出来的事物用另一种语言准确流畅地进行重新表达的过程。与其他题材的文章相比,科技专业文章在内容、表达形式和风格上有很大的差别,具有科技性强、专业性强、逻辑严密、表达要求简练的特点,在翻译上力求准确全面、严谨明确和通顺简练。 1科技英语翻译遵循的基本原则 从科技文章的特点来看,大多具有以下几个特征:述说事理、逻辑性强、结构严密、术语繁多,语言严谨、数据精确。这就要求译文必须概念清楚、条理分明、逻辑正确、数据无误,尤其对定义、定律、公式、图表、结论等更应特别注意。科技英语作为特殊英语的一个分支,在词汇构成、遣词造句等方面都有其自身的特点,其语法结构不十分严密、语言习惯和汉语也有不少差别、词汇量大、词语繁多,因此科技英语翻译起来比较困难。另外,科技文章比较重视叙事逻辑上的连贯及表达上的明晰与畅达; 避免行文晦涩,避免表露个人感情,避免论证上的主观随意性。因此,科技英语翻译力求少用或不用描述性形容词以及具有抒情作用的副词、感叹词及疑问词,而是大量使用科技词汇、专业技术用语,译者应尊重客观事实,不能随意改动数据、回避不易翻译的文字,更不能加进自己的主观想象,进行自由翻译。 我国著名翻译家严复提出的“信、达、雅”三准则一直为不少翻译工作者所接受。 “信”指的是译文要忠实于原文,“达”是指译文的通顺达意,“雅”指的是译文的用词修辞。三准则体现了译文和原文信息等值这一基本要领。 “信、达、雅”的翻译准则对各种英语文体的翻译实践都具有指导意义,是衡量一篇译文好坏的标准,也同样适用于科技文献的翻译。由于科技文章特有的文体特征,与其他类文章相比,其“达”和“雅”的内涵不同,它要求在准确传达信息的基础上,使译文更加简洁明快,流畅通顺。2科技英语翻译的基本方法
腿英语四级作文万能句子精选 薈（一）段首句 蒅1. 关于……人们有不同的观点。一些人认为…… 芀There are different opinions among people as to ____ .Some people suggest that ____. 袈2. 俗话说（常言道）……，它是我们前辈的经历，但是，即使在今天，它在许多场合仍然适用。 蚈There is an old saying______. It"s the experience of our forefathers，however，it is correct in many cases even today. 蚂3. 现在，……，它们给我们的日常生活带来了许多危害。首先，……；其次，……。更为糟糕的是……。肂Today, ____, which have brought a lot of harms in our daily life. First, ____ Second,____. What makes things worse is that______. 蚇4. 现在，……很普遍，许多人喜欢……，因为……，另外（而且）……。 螇Nowadays，it is common to ______. Many people like ______ because ______. Besides，______. 肃5. 任何事物都是有两面性，……也不例外。它既有有利的一面，也有不利的一面。 蒀Everything has two sides and ______ is not an exception，it has both advantages and disadvantages. 蚀6. 关于……人们的观点各不相同，一些人认为（说）……，在他们看来，…… 螇People’s opinions about ______ vary from person to person. Some people say that ______.To them,_____. 蒄7. 人类正面临着一个严重的问题……，这个问题变得越来越严重。 膂Man is now facing a big problem ______ which is becoming more and more serious. 葿8. ……已成为人的关注的热门话题，特别是在年青人当中，将引发激烈的辩论。 袇______ has become a hot topic among people，especially among the young and heated debates are right on their way. 袅9. ……在我们的日常生活中起着越来越重要的作用，它给我们带来了许多好处，但同时也引发一些严重的问题。 蚀______ has been playing an increasingly important role in our day-to-day life.it has brought us a lot of benefits
英语写作好句的集锦 英语写作好句集锦 1. Where there is a will， there is a way. 有志者事竟成。 2. Nothing is too difficult in the world if you set your mind into it. 世上无难事，只怕有心人。 3. Every coin has two sides. 每枚硬币都有两面;凡事皆有好坏。 4. Don't troubles trouble until trouble troubles you. 不要自找麻烦。 5. No pains，no gains. 不劳无获。 6. Night had fallen before we knew it. 不知不觉夜幕就降临了。 7. I'm looking forward to hearing from you soon. 希望早日收到你的来信。 8. You are always throwing things about. Look， what a mess in your room! 你总是乱扔东西。瞧，你的房间乱成什么样了! 9. Not until yesterday did I get to know that. 直到昨天我才知道那件事。 10. It was not until yesterday that I got to know that. 直到昨天我才知道那件事。 11. No sooner had he left home than it began to rain. 他一离开家天就开始下雨了。 12. Hardly had he left home when it began to rain. 他一离家天就开始下雨了。 13. It is obvious that China is getting more and more powerful. 显然，中国正变得越来越强大。 14. It is reported that a terrible accident happened on Highway 22. 据报道，在22号公路上发生了严重的交通事故。 15. It is said that another earthquake will hit this island. 据说，这个岛还会发生地震。
英语作文万能句子 一、熟记以下句型 want to do sth help sb with sth Help sb do sth ask sb to do sth forget to do sth take sb to sp stop doing sth get/Tell sb to do sth see sb do sth see sb doing sth hear sb doing sth be angry with sb teach sb to do fill A with B decide to do sth like doing sth hope/wish to do sth remember/forget to do sth begin/start to do sth There is/are sb doing sth it is kind/dangerous of/for sb to do sth so+adj/adv…that+句子 it takes sb some time to do sth Not…until…it is happy/glad/sad…to do sth How+adj+主语+bel What+a/an+adj+名词（单）！ Too+形容词/副词+to do sth 二、掌握以下词组 be good at be late for be worried about be interested in be busy dong sth be afraid of on one’s way to+地点have a good
time have a rest have sth done look after look over look like look the same look at look+形容词get ready for Get on/off get up get down get to turn on/off/up/down learn from sb do well in take away take sb to sp take sth with sb take one’s tem perature take off give up doing pick up put up put down put on put sth+介词+地点 go away go on doing go into go out of go back to go home go along make friends make one’s bed 三、熟练掌握以下搭配 Listen to the music talk to sb read books write a diary walk to school smile to sb run on the playground take jumping exercise See a film watch TV ask sb for help tell stories sit at table lie on the bed Sleep in bed play basketball/football Sing a song laugh at sb have breakfast/lunch/supper Clean my bedroom swim in the
地道科技英语句子写作 地道科技英语句子(Standard Sentence)的写作，在用词、句型和句子结构等方面都很有讲究，就句型和句子结构而言，表达要简洁是准则之一。首先，要避免赘词和不必要的复杂句子结构，要避免无意义的词语和结构，其次，对于由于含有较多信息而形成的长句，可采用以短代长（用短语代替从句（状语从句和定语从句等））、用词化的手段表意和用省略手段等使句子简洁、结构紧凑。下面就以短代长介绍常用的几种表达方法： 一、用短语代替从句 A. 名词短语（名词化结构） 1构成：名词短语，由一个中心名词及其修饰语组成。在其中，有一类名词短语，称为名词化结构（Nominalization），在该名词短语中，中心名词一般为表示动作或状态的名词或动名词。典型的结构为：“n. 1＋ of ＋n. 2＋介词＋n. 3”，其中，n. 1，n. 2和n. 3 都为名词或动名词。 名词短语还包括名词连用，即中心名词前有一个以上其他名词，它们都为中心名词的前置修饰语。名词短语还有其他形式。 2功能：名词短语在科技英语句子中经常使用，它常常包含主要或较多信息，使句子结构简单、紧凑。如名词短语可替代时间、条件和原因状语从句，使复合句变成简单句。名词短语在句子中可作主语、表语、宾语和介词宾语等。 3例句： (1) If water waves are compared with radio waves , it can be shown that … (A comparison of water waves with radio waves shows that … )（作主语，代替条件状语从 句） (2) Since there is no atmosphere in space, scientists could make pure drugs there. (The absence of atmosphere in space would enable scientists to make pure drugs there. ) （作主语，代替原因状语从句） (3) In order that the electrical operation of the ferrites can be successful, it is demanded that… ( Successful electrical operation of the ferrites demands that… ) （作主语，代替目的状语从句） (4) After the feedback is added, the output becomes stable. (The addition of the feedback makes the output stable. ) （作主语，代替时间状语从句）(5) The rotation of the earth on its own axis causes the change from day to night. (作主语) 地球饶轴自转，引起昼夜的变化。 (6) Television is the transmission and reception of images of moving objects by radio waves. (作 表语) 电视通过无线电波发射和接收移动物体的图象。 (7) The curve shows the variation of the current in the circuit with the applied voltage.（作宾语） 这条曲线画出了该电路的电流随外加电压的变化情况。 (8) The rate of decrease of power with increased case temperature is θjc. （作主语） 功率随管壳温度增加而下降的速率为θjc。 (9) The dependence of y upon x is expressed by y=f(x). （作主语） Y对于x的依从关系用y=f(x)来表示。 (10) Ellipses are used to describe the motions of the planets around the sun. （作宾语） 我们用椭圆来描述行星绕太阳的运行情况。 (11) We have discussed the passage of an electric current through liquid solutions of acids, bases
英语考试作文万能套用句子 有很多的同学是非常想知道，英语考试作文万能套用句子是什幺，小编 整理了相关信息，希望会对大家有所帮助！ 1 英语作文万能句子 引出不同观点 People’s views on … vary from person to person. Some hold that …. However, others believe that….人们对……的观点因人而异.有些人认为……，然而其他 人却认为…… People may have different opinions on …人们对……可能会有不同的见解. There are different opinions among people as to …关于……，人们的观点大不 相同. Taking all these factors into consideration, we naturally come to the conclusion that…把所有这些因素加以考虑,我们自然会得出结论…… There is no doubt that ... has its drawbacks as well as merits.毫无疑问,...有优点也有缺点. All in all, we cannot live without … But at the same time we must try to find out new ways to cope with the problems that would arise.总之,我们没有…是无法生 活的.但同时,我们必须寻求新的解决办法来对付可能出现的新问题. 提出建议 It is high time that we put an end to the (trend).该是我们停止这一趋势的时候了. It is time to take the advice of …and to put special emphasis on the
英语句子看上去纷繁庞杂，但仔细观察不外乎五个基本句式。这五个基本句式可以演变出多种复杂的英语句子。换言之，绝大多数英语句子都是由这五个基本句式生成的。这五个基本句式如下： S十V主谓结构 S十V十P主系表结构 S十V十O主谓宾结构 S十V十O1十O2 主谓双宾结构 S十V十O十C 主谓宾补结构 说明：S＝主语；V＝谓语；P＝表语；O＝宾语；O1＝间接宾语；O2＝直接宾语；C＝宾语补足语 基本句型一： S十V主谓结构这种句型中的动词大多是不及物动词，这些动词常见的有：appear, stop,arrive, come, die, happen,leave,laugh ,sing ,sing等等。如：1). 学生们学习很努力。_____________________________________ 2). 她什么也没说就离开了。_______________________________________ 3). 事故accident是昨天晚上发生的。 _____________________________________ 基本句型二: S十V十P主系表结构 这种句型中的系动词一般可分为下列两类： A. 表示状态的连系动词。这些词有：be, look, seem, appear, smell, taste, sound, keep, remain, 等等。如： 8) We should __________ __________ any time. 我们在任何时候都应该保持 谦虚。 9) 这种食物尝起来很糟糕。 _________________________________________________. B. 表示转变或结果的系动词。这些词有：become, get, grow, turn, go, come, prove,等等。如： 10) Spring comes. It is getting warmer and warmer. 春天到了，天气变得越来越暖和。 11) Don't have the food. _______________________________. 不要吃那种食物，它已经变质了。 12) The fact __________ ___________. 这个事实证明是正确的。 基本句型三: S十V十O主谓宾结构 这种句型中的动词应为及物动词或者可以后接宾语的动词短语。同时，句子中有时含有与宾语有关的状语。文综之家https://www.doczj.com/doc/654831214.html,作宾语的成分常是：名词、代词、动词不定式、动名词或从句。如： 13) 我昨天看了一部电影。 ________________________________________________. 16）They have ________ ________ _________ of the children．这些孩子他们照看得很好。 17）I don’t like being treated like this.________________________________。 基本句型四: S十V十O1十O2 主谓双宾结构，O1＝间接宾语；O2＝直接宾语
英语作文万能句子汇总 （一）段首句 1. 关于……人们有不同的观点。一些人认为…… There are different opinions among people as to ____ .Some people suggest that ____. 2. 俗话说（常言道）……，它是我们前辈的经历，但是，即使在今天，它在许多场合仍然 适用。 There is an old saying______. It"s the experience of our forefathers，however，it is correct in many cases even today. 3. 现在，……，它们给我们的日常生活带来了许多危害。首先，……；其次，……。更为 糟糕的是……。 Today, ____, which have brought a lot of harms in our daily life. First, ____ Second,____. What makes things worse is that______. 4. 现在，……很普遍，许多人喜欢……，因为……，另外（而且）……。 Nowadays，it is common t o ______. Many people like ______ because ______. Besides，______. 5. 任何事物都是有两面性，……也不例外。它既有有利的一面，也有不利的一面。 Everything has two sides and ______ is not an exception，it has both advantages and disadvantages. 6. 关于……人们的观点各不相同，一些人认为（说）……，在他们看来，…… People's opinions about ______ vary from person to person. Some people say that ______.To them,_____. 7. 人类正面临着一个严重的问题……，这个问题变得越来越严重。 Man is now facing a big problem ______ which is becoming more and more serious. 8. ……已成为人的关注的热门话题，特别是在年青人当中，将引发激烈的辩论。 ______ has become a hot topic among people，especially among the young and heated debates are right on their way. 9. ……在我们的日常生活中起着越来越重要的作用，它给我们带来了许多好处，但同时也 引发一些严重的问题。 ______ has been playing an increasingly important role in our day-to-day life.it has brought us a lot of benefits but has created some serious problems as well. 10. 根据图表/数字/统计数字/表格中的百分比/图表/条形图/成形图可以看出……。很显然……，但是为什么呢？ According to the figure/number/statistics/percentages in the /chart/bar graph/line/graph，it can be seen that______ while. Obviously，______，but why? （二）中间段落句 1. 相反，有一些人赞成……，他们相信……，而且，他们认为……。
Sentences 1 1.The North American International Auto Show has traditionally served as an extravagant unveiling of the latest in the automotive industry. 2. A new international initiative to increase grain crop yields could help raise incomes for six million farmers in South Asia and combat hunger in one of the poorest regions of the world. 3.The U.S. space agency, NASA, is celebrating the 40th anniversary of the Apollo 8 space mission. 4.At NASA, 2008 will be remembered for shuttle missions, discoveries on Mars, and mysteries revealed across the solar system and beyond. 5.Three main Internet cables from Italy to North Africa were inexplicably severed in the second such incident in a year, plunging Egypt and several other Arab countries into a communications crisis. 6.Clean energies are forms of energy which do not pollute the air, the ground, or the sea. Clean energies include: Solar power Wind power Wave power Salinity gradient power Tidal power Geothermal power 7.Solar power describes a number of methods of harnessing energy from the light of the Sun. 8.The world seems increasingly divided into those who favor genetically modified (GM) foods and those who fear them. https://www.doczj.com/doc/654831214.html,puter makers are pushing the limits of weight and power. 10.Meanwhile, labs are testing new battery technologies. 11.One of the most promising new technologies to help achieve that goal is a new breed of low-powered microprocessors that can vary the speeds at which they operate. 12.South Korean scientists clone first dog 13.South Korea's pioneering ste 14.m cell scientist has cloned a dog 15.Snuppy, the first cloned dog, appears with the three-year old male Afghan hound whose cells were used to clone him. 16.Researchers have since cloned cats, goats, cows, mice, pigs, rabbits, horses, deer, mules and gaur, 17.Researchers determined that the specimens are around 195,000 years old. 18.Many large cities are anything but beautiful. 19.If people want to solve the problem of waste, there is no time to be lost. 20.They must work out ways of making use of good things which are just thrown away as waste. 21.When a car gets too old, it may not run any more. But the metal that the car was made of is still good. It can be put to use again. 22.When a bottle is empty, it goes out in the trash. But bottle glass can be ground into sand and used to pave streets. 23.Garbage from food can be changed into fertilizer. But first you have to fish out all the glass and metal.