04UNIT2科技英语基础知识
科技英语基础知识二PPT课件
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a≡b a∶b x2 x3 Z-10 xn
x 3x nx 5 x2
a is equivalent to b a to b x squared, the square of x, the second power of x x cubed, the cube of x, the third power of x Z to the minus tenth power the nth power of x, x to the power of n, x to the n the square root of x, root x the cube root of x the nth root of x the fifth root of x square
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logab
dn y dx n
b
na!
|x|
xx'
f(x) y=f(x)
log b to the base a the nth derivative of y with respect to x integral between limits a and b factorial n the absolute value of x the mean value of x, x bar x prime function f of x y is a function f of x
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2.3 常用前缀和后缀
记忆生词有很多方法, 如: (1) 利用音、形、义相结合来记(初学阶段)。 (2) 博览强记。 (3) 循环记忆。 (4) 把生词放在语句中来记忆, 利用词与词的联系来记忆。
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(5) 利用构词法来记忆, 有三个优点: ① 便于掌握单词的词性, 这对句法分析十分重要; ② 有利于了解单词的来历及其新添的含义, 当我们悟到一个新单词是由以前 熟知的单词变化而来的时, 便对这个新单词不再感到生疏; ③ 今后我们学到一个单词, 就可以旁征博引, 顺藤摸瓜, 联想到一系列同根词, 便于巩固记忆, 同时扩大了单词拥有量。
科普仁爱版初中英语Unit4__Topic2__SectionA__精品课件PPT课件
Year
2014
2048
Item
Houses and are built on the hospitals earth
will be built on Mars
Buses and _a_re__d_ri_ve_n____by
taxis
men (drive).
_w_il_l b_e__d_ri_ve_n_by robots.
Kangkang: Aliens are discussed by many people. But I don’t think aliens w__il_l_b_e__fo_u_n_d__ in space.
Maria: You’re probably right. I won’t believe there are aliens until I see them w__it_h__m_y__o_w_n__e_y.es
water. Now books ___a_re__p_ri_n_te_d__ (print) on the
paper. But in 2048 books w__il_l b_e__d_is_p_la_y_e_d_(display)
on soft screens.
Schoolbags and pens
2. I’m sure that stricter rules to control cigarette smoking ____w_i_l_l __b_e___ _m__a_d_e__ (make) very soon.
3. The task _w__il_l_ __b_e__ f_i_n_is_h_e_d_(finish) in an hour. Then we can go home and have a good rest.
Module4 unit2教案
A. has been built B. is being built C. has built D. is building
（六）课后作业
1.总结本节课所学的知识。
ng C. used D. are used.
7..Must old people _____ to politely?
A. speak B. spoken C. be spoke D. be spoken
8.Bike mustn’t _____ everywhere.
A. be up B. be put C. put C. putting
教学难点：Phrase
Made of at a time by hand at the beginning of in a way rather than
知识目标：能读懂谈论创造的文章；了解发明对人类生活的影响。
能力目标：能用被动语态的句子表述发明对人类的影响。
四、教学方法
PWP approach：在阅读中使用检索的学习策略。
3. The sun_ _ ___at night .
A. can be seen B. can't see C. can't be seen D doesn't see
4. Good books__ __again and again.
A. should be readed B. should be read C. must read D. may read
A．finish B．be finish
C．be finished D．finished
4000基础英语词汇背诵Unit2
4000基础英语词汇背诵Unit2Unit 2 （20词+1故事）21adventuren.冒险An adventure is a fun or exciting thing that you do. 做有趣或刺激的事。
→ Riding in the rough water was an adventure.在波涛汹涌的水面上骑水上摩托真带劲。
22approachv.接近To approach something means to move close to it. 表示靠近。
→ The boy approached his school.男孩快到学校了。
23carefullyadv.小心地Carefully means with great attention, especially to detail or safety.表示极度注意，尤其是对细节或安全方面。
→ The baby carefully climbed downthe stairs.小宝宝小心翼翼地爬下楼梯。
24chemicaln.化学制品A chemical is something that scientists use in chemistry.科学家在化学实验中使用的东西。
→ The scientist mixed the chemicals.科学家在混合这几种化学品。
25createv.创造To create means to make something new.表示制作出新颖的东西。
→ She created an igloo from blocks ofsnow.她用雪块做了一间冰屋。
26eviladj.邪恶的Evil describes something or someone bad or cruel, not good. 用于描述坏的或残忍的人或物。
→ The evil figure scared us all.这个邪恶的人把所有人都吓到了。
商英科技英语基础词汇
商英科技英语基础词汇Technology has become an integral part of our daily lives, revolutionizing the way we work, communicate, and access information. In the field of business, technology plays a crucial role in enhancing productivity, improving efficiency, and driving innovation. In this article, we will explore some fundamental vocabulary related to technology in the context of business English.1. Hardware:Hardware refers to the physical components of a computer system. It includes devices such as the central processing unit (CPU), monitor, keyboard, mouse, and printer. These components work together to enable the functioning of a computer system.2. Software:Software refers to the programs and applications that run on a computer system. It includes operating systems, word processors, spreadsheets, and presentation software. Software enables users to perform various tasks and interact with the computer system.3. Network:A network is a collection of interconnected devices that can communicate with each other. In a business setting, networks allow employees to share resources, such as files and printers, and collaborate on projects. Networks can be local area networks (LANs) within a single building or wide area networks (WANs) that connect multiple locations.4. Internet:The internet is a global network of interconnected computers and servers. It enables users to access and share information from anywhere in the world. The internet has revolutionized the way businesses operate, allowing them to reach a global audience, conduct e-commerce, and communicate with customers and partners.5. Cloud Computing:Cloud computing refers to the delivery of computing services over the internet. Instead of storing data and running applications on local computers or servers, businesses can use remote servers hosted on the internet. This enables them to access resources on-demand, scale their operations, and reduce costs.6. Cybersecurity:Cybersecurity refers to the protection of computer systems and networks from unauthorized access, damage, or theft of data. With the increasing reliance on technology, businesses face various cybersecurity threats, such as hacking, malware, and phishing attacks. Implementing robust cybersecurity measures is essential to safeguard sensitive information and maintain business continuity.7. Big Data:Big data refers to large volumes of structured and unstructured data that businesses generate and collect. This data can be analyzed to gain insights and make informed decisions. Big data analytics involves using advanced tools and techniques to process and interpret this data, helping businesses identify patterns, trends, and opportunities.8. Artificial Intelligence (AI):Artificial intelligence refers to the simulation of human intelligence in machines. AI technologies, such as machine learning and natural language processing, enable computers to perform tasks that typically require human intelligence. In a business context, AI can automate routine processes, provide personalized customer experiences, and improve decision-making.9. Internet of Things (IoT):The Internet of Things refers to the network of physical devices embedded with sensors, software, and connectivity, enabling them to collect and exchange data. IoT devices, such as smart thermostats, wearables, and industrial sensors, can be used in various business applications, including inventory management, predictive maintenance, and remote monitoring.10. Virtual Reality (VR) and Augmented Reality (AR):Virtual reality involves creating a simulated environment that users can interact with using specialized devices, such as headsets. Augmented reality, on the other hand, overlays digital information onto the real world. Both VR and AR have applications in business, such as virtual training simulations, product visualization, and immersive customer experiences.In conclusion, technology has become an indispensable part of modern business. Understanding the fundamental vocabulary related to technology is essential for effective communication and collaboration in the business world. By staying informed and adapting to technological advancements, businesses can leverage technology to gain a competitive edge and drive growth.。
科技英语4.2
比生铁重量轻的炉渣从炉墙上另外一个 位置比出铁口略高的出口排出，这一出口被 称为炉渣出口。
杂质
For separating iron from the impurities, the iron ore must be melted. The ore melts at a very high temperature, that is why the temperature inside the blast furnace is held about 2 500 degrees Fahrenheit.
生铁 含量
黑色金属在工业领域的应用主要有两种形 式：铸铁和钢铁。这两种铁合金通常都由生铁 制造，但其中碳的含量不同。
Steel is iron containing from 0.0218 to 2.11 per cent carbon, while pig iron is an alloy of iron and carbon with the carbon content more than 2.11 per cent. Pure iron is not used in industry because it is too soft.
高炉煤气
高热的产生依赖于焦炭在热风中的燃烧，而热 风则是在称作热风炉中的专用炉子中被加热的，在 这些炉子中通过燃烧高炉煤气来产生热量并加热空 气，一个鼓风炉可以容纳大约1000吨的铁矿石、焦 炭和助熔剂。
小结
ferrous metals:黑色金属； pig iron:生铁； blast furnace:鼓风炉； hearth:炉膛； charging mechanism:加料机构； coke:焦炭 ； tap:出铁口； slag：炉渣； hot blast stoves:热风炉； blast furnace gases:高炉煤气.
英语百科第4单元第2课
英语百科第4单元第2课
摘要：
1.了解英语百科第4单元第2课的主题和背景
2.掌握重点词汇和短语
3.提高阅读和理解英语文章的能力
4.学习如何运用所学知识到实际生活中
正文：
一、了解英语百科第4单元第2课的主题和背景
英语百科第4单元第2课主要介绍了________________（主题），通过阐述________________（背景），帮助学习者更好地理解________________（核心观点或知识点）。
二、掌握重点词汇和短语
1.词汇：________________（列出5-10个重点词汇，附上中文意思）
2.短语：________________（列出3-5个重点短语，附上中文意思）
三、提高阅读和理解英语文章的能力
1.阅读策略：________________（介绍阅读时应注意的要点、技巧等）
2.理解方法：________________（介绍如何理解文章中的难点、陷阱等）
四、学习如何运用所学知识到实际生活中
1.实际应用场景：________________（举例说明如何在生活中使用所学知识）
2.实践建议：________________（给出3-5个实际操作建议，帮助学习者将
知识应用于生活）
【结尾】
通过学习英语百科第4单元第2课，我们不仅对________________（主题）有了更深入的了解，还学会了如何在实际生活中运用所学知识。
unit 2英语科技词汇的形成与构词原理
英语有多种能引起词性变化的后缀，如名词后缀、动词后缀、 形容词后 缀和副词后缀等。
名词后缀可分别与动词、形容词以及其他名词组合， 构成新的名词。
1）与动词组合的后缀：-ant、-er/or、-ee、age、-al、-ation、-ing、-ment 等 例词（表示 施动者）：informant （报告者）、computer （计算机）、accelerator （加速器）
例词（表示动作承受者）:nominee （任命者）、 testee （接受实验者）,referee （证 明人）
例词（表示动作的名词化）：drainage （排水）、 refusal （拒绝）、electrification （电气化、充
电）、building （筹办）、management （管理）
件包）等
2）
机械加工术语:drilling （钻
削）,grinding 削）.finishing
（（磨精削加）工%）tu等rning
（车
3）
材料科学术语：strength （强度）、
toughness （韧性）、hardness （硬度）、
ductility （延展性）等
4）航空工业术语：nose （机首）、wind tunnel （风洞）、ceiling （升限）、ferry range （转场 航程）、stealthiness （隐形性）等
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翻译练习
4. 为了实现10位高性能和低功耗的流水线型 模数转换器，提出了基于0.6 μm CMOS混合 信号工艺的设计方法。
翻译练习
5. Despite of many standard process and design methods, performances of IC devices in use are always different , especially bipolar IC devices whose voltage and power are hard to match the standard design methods , are always designed separately .
翻译练习
5. 虽然有许多标准流程和设计方法，但在 实际应用中IC产品的性能是有很大区别的， 尤其是双极性IC产品，其电压和功率很难 与标准设计方法相匹配，总是需要单独设 计。
课后学习
阅读教材UNIT 3 Passage A； பைடு நூலகம்搜集专业术语。
表数词的前缀: “千”
“kilo - ” kiloampere (千安培) ; kilobyte (千字节) ; kilocalorie (千卡) ; kilogram (千克) ; kiloohm (千欧姆) ; kiloton (千吨) ;
表数词的前缀: “千”
“milli - ” 表“1/1000，毫 ” milligram毫克 milliampere 毫安培 millimeter 亳米
翻译练习
1. America’s plans didn’t seem to interest the eastern hemisphere.
2. Our team just scraped into the semifinals. 3. He was far from impressive in his semifinal
表数词的前缀:
“di - ” 如: dioxide二氧化物 diode二极管
“二”
“ ambi - ” 如: ambipolar 二极的,双极性的 ambiguous 模棱两可的 ambilateral 双方面的
表数词的前缀: “三”
“ tri - ” triangle 三角形 trilateral 三边形 triphase current 三相电流 tripod 三脚架
表数词的前缀: “四”
“quadr(i) - ” quadricycle 四轮脚踏车 quadriform 四种形态的 quadrangle 四边形
表数词的前缀: “1/4”
“quarter - ” quarter final 1/4决赛 quarter hour 一刻钟 quarter round 1/4圆
表数词的前缀 “一”
“mono - ” monocycle 独轮车 monoplane 单翼机 monologue 独白 monotone 单音调 monolithic 单片的
表数词的前缀: “一”
a monolithic constant bandwidth amplifier 一种单片恒带宽放大器
against Federer.
翻译练习
4. In order to implement an ADC with pipeline structure of 10-bit high performance and low power dissipation, a design method based on 0.6 μm CMOS mixed signal technology was proposed.
表数词的前缀: “十”
“deca - ” decade十年 decathlon 十项全能运动
“deci - ” 表示“10” ，“1/10” decimeter 1/10米，分米 deciliter 1/10升 decimal 十进制的
表数词的前缀: “百”
“cent 厘米
a monolithic society
统一的社会
表数词的前缀: “一”
“ uni - ”
unicolor 单色 unicycle单轮车 uniform 均匀的, 一致的, 清一色的, 统一的 unicellular 单细胞的
表数词的前缀: “二”
“ bi - 、 di - 、ambi - ” “bi - ” 如: bicycle 自行车 bipolar双极性的 bifunctional具有两种功能的 biparty 两党联合的
04UNIT2科技英语基础知识
本讲内容
1. 科技文章的摘要 2. 表数词的前缀
表数词的前缀 “一半，1/2”
“demi - , hemi - , semi – ” “demi –”
demilune半月 demitasse半杯 “hemi – ” hemicycle 半圆 hemisphere半球
表数词的前缀 “一半，1/2”
“semi – ” 用来构成各种新词: semiconductor 半导体 semicircle 半圆 semifinal 半决赛 semiautomatic 半自动的 semi-skilled半熟练的 semi-civilized 半文明的 semi-official 半官方的
表数词的前缀: “五”
“penta - ” 如: pentagon五边形，五角大楼 pentamirror五面镜 pentathlon 五项全能运动
表数词的前缀: “六”
“ hexa – ” hexagon 六边形 hexachord 六弦乐器
表数词的前缀: “七、八、九”
“ hepta - ” heptagon 七边形 “ octa - ” octagon 八边形 “ nona - ” nonagon 九边形