人民邮电出版社《科技英语》课件 unit 4 Information Science

Unit 4 Information Science
English for Science and Technology
Text A--Comprehension



1. Is there any difference between IP4 and IP4s? 2. How did Siri influence the cultural world according to the text? 3. Why did Siri turn out to be a disappointment once?




generate ['dʒenəreit] 1.V-T To generate something means to cause it to begin and develop. 造成 例：The labour secretary said the reforms would generate new jobs. 劳动部长说这些改革将带来新的工作。 2.V-T To generate a form of energy or power means to produce it. 产生 (电等能量) 例：The company, New England Electric, burns coal to generate power. 新英格兰电力公司燃烧煤来发电。





casual ['kæʒjuəl] 1.ADJ If you are casual, you are, or you pretend to be, relaxed and not very concerned about what is happening or what you are doing. 放松的 例：It's difficult for me to be casual about anything. 要我轻松待事有难度。 2.ADV 放松地 casually 例："No need to hurry," Ben said casually. “不必匆忙，”本轻松地说道。 3.ADJ A casual event or situation happens by chance or without planning. 不经意的 例：What you mean as a casual remark could be misinterpreted. 你不经意所说的话可能会被误[,rekəg'niʃən]
1.N-UNCOUNT Recognition is the act of recognizing someone or identifying something when you see it. 认出; 识别 例：He searched for a sign of recognition on her face, but there was none. 他在她的脸上搜寻她认出来的迹象，但没有。 2.N-UNCOUNT Recognition of something is an understanding and acceptance of it. 认可; 接受 例：Recognition of the importance of career development is increasing. 对职业发展重要性的认可在不断增加。






transmit /trænzˈmɪt/ 1.V-T/V-I When radio and television programmes, computer data, or other electronic messages are transmitted, they are sent from one place to another, using wires, radio waves, or satellites. 传播 (广播电视节目、计算机信息等) 例：The game was transmitted live. 这场比赛被现场直播。 This is currently the most efficient way to transmit certain types of data like electronic mail. 这是目前传输电子邮件等某类数据最有效的方法。 2.V-T If one person or animal transmits a disease to another, they have the disease and cause the other person or animal to have it. 传播 (疾病) 例：...mosquitoes that transmit disease to humans. …向人类传播疾病的蚊子。 3.V-T If an object or substance transmits something such as sound or electrical signals, the sound or signals are able to pass through it. 传导 (声音、电子信号等) 例：These thin crystals transmit much of the power. 这些薄薄的晶体能传导大部分的能量。




dictate [dik'teit, 'dikteit] 1.V-T If you dictate something, you say or read it aloud for someone else to write down. 口授; 使听写 例：Sheldon writes every day of the week, dictating his novels in the morning. 谢尔登每天都进行创作，在上午口述他的小 说。 2.V-T If someone dictates to someone else, they tell them what they should do or can do. 指示; 命令 例：What right has one country to dictate the environmental standards of another? 一个国家有什么权利规定另一个国家的环境 标准？





accuracy /ˈækjʊrəsɪ/ 1.NUNCOUNT The accuracy of information or measurements is their quality of being true or correct, even in small details. 精确 (性); 准确 (性) 例：Every care has been taken to ensure the accuracy of all information given in this leaflet. 已经采取了一切措施来保证这张传单上所有 信息的准确。 2.N-UNCOUNT If someone or something performs a task, for example, hitting a target, with accuracy, they do it in an exact way without making a mistake. 准确 无误 例：...weapons that could fire with accuracy at targets 3,000 yards away. …那些可以准确无误地射中3000码以外的目 标的武器。



4. What the difference between the two forms of Siri? 5. How does Siri the speechrecognition engine work exactly? 6. What does the author suggest about how to treat Siri? And why?


unveil /ʌnˈveɪl/ 1.V-T If someone formally unveils something such as a new statue or painting, they draw back the curtain which is covering it. 为…揭幕 例：...a ceremony to unveil a monument to the victims. …死难者纪念碑揭幕仪式。 2.V-T If you unveil a plan, new product, or some other thing that has been kept secret, you introduce it to the public. 公布 例：Mr. Werner unveiled his new strategy this week. 沃纳先生本周公布了他的新策略。




artificial /ˌɑːtɪˈfɪʃəl/ 1.ADJ Artificial objects, materials, or processes do not occur naturally and are created by human beings, often using science or technology. 人造的 (物体、材料、 工艺等) 例：The city is dotted with small lakes, natural and artificial. 这座城市满是天然和人造的小湖泊。 ...a wholefood diet free from artificial additives, colours and flavours. …一种无人造添加剂、色素及味素的全天然 食物饮食。 2.ADV 人造地 artificially 例：...artificially sweetened lemonade. …人工加了糖的柠檬汽水。