内容正文:
Book 2 Unit 3 Computers
1. common 共同的;共有的;共用的; 常见的 in common with … 象……一样
1) Jack, you and I have one thing in common. 2) I had nothing in common with you.
have nothing/little/something/much/a lot in common (with…) (与…)没有/有点/有许多共同之处
【辨析】ordinary, common,usual & normal
ordinary 普通的;平常的;强调平常、平庸而无特别之处; usual 平常的; 通例的,遵循常规的
common 指常见的,常常发生的,不足为奇的; normal 符合标准而无异常;正常的
2. calculator n. 计算器 calculation n. 计算 calculate v. 计算
以or结尾表示“……人”的词:visit---visitor; survive---survivor; compete---competitor;
educate---educator; invent---inventor; operate---operator
3. simplify vt.简化;使简易 simple adj. 简单的;容易的;简朴的
simply adv. 简单地;容易地;仅仅;朴素地 simplification n. 简化
simplified adj. 简化的
4. operator n. 操作员
⑴ What skills are needed to operate this machine? (vt. 操作)
⑵ The motor operates smoothly. (vi. 运转,工作)
⑶ We will have to operate on his eyes. (operate on v. 对…实施手术)
⑷ He underwent a three-hour heart operati