Unit 3 1. represent v. 1）体现；成为…实例 These comments do not represent the views of us all. 2）展示；描绘 This new report represents the current situation in our school. 3）象征；表示 They represent the promise of spring and a renewal of life. 4）代表 I sent my husband to represent me at the wedding. 5）相当于（linking v.） This book represents ten years of thought and research. [词形转换] 1）representative adj. 典型的 n. 代表 be representative of… 是…的典型/代表 The firm has representatives in every major city. 2）representation n. 表现；描述；描绘 2. cover 1）v. 占（一片面积） The reserve covers an area of some 1140 square kilometers. 2）v. 覆盖；遮盖；掩盖 cover sth. with sth. 用某物覆盖某物 I covered my face with my hands. cover up 掩饰（真相）；（完全）遮盖 So, it’s been useful to know how to cover up holes and repaint a room. cover up for sb. 为某人掩盖错误；包庇某人 3）v. 包括；涉及 A school year in China covers tow semesters. 4）v. 行走（一段路程） This simple vehicle could let me cover long distances in a fairly short time. 5）v. 报道 A journalist was sent to cover the conference. 6）v. 足以支付；够付 To cover the cost of a bus, each student will have to pay $10. 7）n. 盖子；书皮；封面；覆盖物 Her face was on the cover of every magazine. [词形转换] 1）coverage: n. 新闻报道；覆盖范围 3. vary v.（大小、形状等）不同，相异；多变；使多元化 vary from…to… 从…到…各不相同 Class activities will vary from day to day. vary in… 在某方面不同 The students’ work varies considerably in quality. vary with… 随着…的变化而变化 [词形转换] 1）variety n. 变化；多样性；种类 2）various adj. 各种各样的 3）variable adj. 易变的；变化无常的 4）varied adj. 多变的 5）variation n. 变化；变体 4. date 1）v. 确定年代；注明日期；（与…）谈恋爱 When I first dated Steve, I learned he had a dog, Molly, and a cat, Flora. date from 始于；追溯到；自…至今 = date back to Chinese tea culture dates from thousands of years ago and drinking tea gradually becomes a tradition. 2）n. 日期；约会 blind date 相亲 best-before date 最佳保质期 out of date 过时的 up to date 现代的；时髦的；拥有或包含最新信息的 set/ fix a date for… 确定…的日期 the due date 到期日 to date 迄今为止（= so far） To date, we have received over 200 replies. 5. account 1）n. 叙述；说明；报道；账户；账目 on account of 由于；因为 Did you choose this company on account of high pay on no account 决不 The professor warned the students that on no account should they use mobile phones in his class. take sth. into account 考虑某事 = take account of sth. When judging his performance, don’t take his age into account. be of little/ no account (to sb.)（对某人）无足轻重/不重要 account for 解释；占（一定数量或比例） The poor weather may have accounted for the small crowd. [词形转换] 1）accountant n. 会计 2）accounting n. 会计工作；会计行业 6. promote v. 促进，推动；促销；提升，晋升；将（运动队）晋级 promote sth. as sth. 把某物推广为某物 The area is being promoted as a tourist destination. get promoted 得到晋升 Peo ... ...
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