18.____________ [E5raiz] vi. 出现， 19.____________ [Ilek5trRnIk] adj. 电子的，

　　20.____________ [E5piErEns] n. 外貌 application finance

　　explore

　　anyhow goal

　　signal type

　　arise

　　electronic appearance 二、单词运用

　　根据句子的结构和意义，在空格处填入一个恰当的单词，或者用括号中所给的适当形式填空。 1. At the end of a letter you should write “Yours _______” and your name. 2. With the development of science and ___________, people will live a happier life. 3. IQ(智商) stands for ___________ quality. 4. The captain had an ___________ leg, made of wood. 5. English is a _____________ language, so we have to learn it. Truly

　　technology

　　intelligence

　　artificial

　　universal

　　6. An a__________ is a calculating tool for dealing with figures in ancient China. 7. One Laptop per Child is a non-profit association devoted to research to develop a ＄100 l_________ for every child in the world. 8. During the course, students will develop their ______________(analysis) skills. 9. The ______________ (develop) of the information technology was the greatest advance of the 20th century. 10. We will soon arrive at the point where we can find all the knowledge of humankind on a computer _____________(网络). abacus

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