【精选词汇】
㈠重点短语
1. I have no idea.＝I’ve no idea.＝I don’t know.我不知道。 (p40)
2. turn on the TV turn on/off打开/关闭…，turn up/down调大/调低；都是“动词＋副词”。
3. change the channel换台on Channel…在…台，e.g. on CCTV-5拓展：the English Channel英吉利海峡
4. different uses of computers计算机的不同用途：
draw and design, play computer games, search for information, send and receive e-mails收发电子邮件, do word processing进行文字处理, write computer programs编写计算机程序 (p41)
5. travel around the world in eight hours八小时环游地球，educational CD-ROM教育软件 (p42)
6. come out (书等)出版，发行，发表，不能用于被动语态，可以转化为be published。
〈知识链接〉When will her new novel come out?＝When will her new novel be published?
〈用法拓展〉⑴(太阳、月亮或星星)出现；露出，e.g. The rained stopped and the sun came out.
⑵(花朵)开放；(草)出芽，e.g. In March flowers and grass come out.
7. learn English and geography at the same time同时学英语和地理at the same time同时
〈知识链接〉learn and play at the same time边学边玩
8. the main character主角play the main character of…＝play the lead role of…
〈知识链接〉play the role…扮演…，the best actor最佳男主角，the best actress最佳女主角
9. have/get itchy feet渴望旅行，e.g. She has gone to Australia－she has always had itchy feet.
10. help you learn English by testing your knowledge of English grammar and vocabulary (p43)
〈知识链接〉⑴by介词，通过某种方法、手段，后接名词或动词-ing。①He made a living by selling flowers. ②You can know more about the news by reading today’s newspaper.
⑵have a knowledge of有某方面的知识，e.g. ①He has a wide knowledge of painting.他在绘画方面知识渊博。②Knowledge is power.知识就是力量。
11. one of the best on the market市面上最畅销的一种
12. choose one icon in the menu在菜单里选择一个图标，click on it for more details点击它以了解详情click on…点击…，left double-click on…左键双击…
13. open my new e-dictionary on my computer打开我电脑上的新电子词典(p48)
〈知识链接〉“打开”电脑的软件用open不用turn on。
〈用法拓展〉⑴英汉词典an English-Chinese dictionary，汉英词典a Chinese-English dictionary
⑵查字典：look up a word in a dictionary或look a word up in a dictionary
14. restart the computer重新启动电脑 start vt.启动；开始 restart重新启动
〈知识链接〉re＋部分动词再…，e.g. rebuild重建，reuse循环使用，retell复述
〈用法拓展〉set off＝start off出发；动身，set about doing sth开始做某事，着手做某事
15. check the settings检查设置，double-click on the “auto-run” icon双击“自动运行”图标，double-click on the icon for “Tour” double-click on the…icon＝double-click on the icon for…双击…图标，put in the CD-ROM插入光盘
16. connect the keyboard to the computer properly正确地连接键盘和电脑
〈知识链接〉⑴connect A to B连接A和B be connected to…与…连接 ⑵proper adj.正确的properly
17. grow an inch长一英寸，grow to six feet long长到六英尺长 A foot is equal to 12 inches.
18. daily English＝everyday English日常英语daily newspaper日报，Xinhua Daily新华日报
19. go on short tours of Australia and New Zealand去澳大利亚和新西兰短期旅行 (p52)
20. be hidden in somewhere in the Arctic被藏在北极的某个地方be hidden＋地点，被藏在…
21. the treasure box百宝箱treasure hunt寻宝 (p55)
㈡词汇解析
1. online adj.联网的；在线的e.g. chat online网上聊天，order a package online网上订购一套
2. reach ⑴vt.到达＝get to…＝arrive at/in… ⑵达到，e.g. ①reach 18 years old年满18岁 ②The child isn’t tall enough to reach the snacks on the table. ⑶reach out a hand伸出一只手
3. ⑴correctly adv.正确地correct ①adj.正确的incorrectincorrectly ②vt.改正；修正，e.g. correct a mistake改正错误 ⑵correct正确的wrong错误的，in the correct order按正确顺序
4. educate v.教育education n.教育educational adj.教育的，e.g. ①educate oneself自修；培养 ②be educated at school在学校里受教育 ③have a good education受到良好教育
5. knowledge n.知识know vt.知道be known to sb为某人所知，be well known/famous for…因…而出名，be known as…作为…而出名，e.g. Samuel Clemens, who was known as Mark Twain, was a famous American writer. 塞缪斯•克莱门斯，以马克•吐温知名，是美国名作家。
6. point ⑴n.分数 e.g. get 100 points得100分 ⑵n.小数点 e.g. 1.732读作one point seven three two
⑶v.指 e.g. point out指出，point at/to…指向
7. regards(用于信函的结尾或转达问候)致意；问候regard sb as…把某人视为…
8. company简写作Co.，e.g.有限公司company limited＝Co., Ltd。producer制作人；制造商。
9. 使用计算机Office word常用短语：create a file创建文档，keep/save the file for future use保存该文档以备用。“收发电子邮件”send and receive e-mails需要“电子信箱”e-mail address。
10. control ⑴n.(键盘上的)控制键 ⑵vt.控制 e.g. ①The traffic lights are controlled by a central computer.交通信号灯由中心计算机控制。②This knob controls the volume.此旋钮调节音量。