*encyclopaedia n.百科全书human adj.人的dinosaur n.恐龙*Italian n.意大利人inventor n.发明家musician n.音乐家scientist n.科学家born n.出生countrysiden.乡村intelligencen.才智*artisticadj.有艺术天赋的ability n.才能，能力perhaps adv.可能，大概invention n.发明notebook n.笔记本include v.包括even adv.甚至however adv.然而suddenly adv.突然nobody pron.没有人*fossil n.化石win v.赢dollar n.元inthecountryside在乡村human being人die out 灭绝find out了解go for a walk去散步Unit 2number n.数字instructionn指标check v.检查gram n.克son n.儿子chess n.国际象棋India n.印度wise adj.充满智慧的challenge v.向 （ 某 人 ） 挑战promise v.许诺prize n.奖赏grain n.谷粒chessboardn.象棋棋盘double v.（使）加倍amount n.数量rest n.剩余部分gold n.金子instead adv.代替realize v.认识到copy v.抄写correctlyadv.正确地traffic n.交通accident n.（交通）事故alongtimeago很久以前challenge….to…向 （ 某 人 ） 挑战and so on等等copy down抄写Unit 3order n.订货compare v.比较monitor n.显示器speaker n.扬声器main unit n.主机keyboard键盘mouse n.鼠标type v.打字brain n.脑control v.控制expensiveadj.昂贵的tiny adj.绩效的depend v.依靠*calculate v.计算speed n.速度operate v.操作railway n.铁路系统company n.公司price n.价格total n.总额inch n.英寸sell v.出售popular adj.受喜爱的work as从事…….工作(be)unawareof没注意到;depend on依靠In addition除…..以外grand total总计lookforwardto盼望;Unit 4advertisementn.广告funny adj.滑稽的create v.创造telephone n.电话wheel n.车轮comfortableadj.使人舒服carriage n.四轮马车century n.世纪passenger n.乘客invent v.发明practicaladj.有用的since prep.从…..以后distance n.距离mobile n.移动电话anytime adv.在任何时候develop v.发展lamp n.灯candle n.蜡烛daytime n.白天dust n.灰尘special adj.特别的wing n.翅膀introductionn.引言insteadofprep.代替petrol n.汽油since then自那以来keep in touch与 … … 保 持 联系inthedaytime在白天keep…off使…..不接近atthesametime同时Unit 5educationaladj.有关教育的exchan...
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