unit3computers重点词汇

Unit 3 Computers

1. calculate vt.

(1)计算，核算

e.g. The committee calculated the costs very carefully.

(2)估计

e.g. I calculate what it will cost.

(3)[美][口]以为；认为

e.g. I calculate all of them will come here.

(4)打算或计划做某事

e.g. This advertisement is calculated to attract the attention of children.

The loss has not yet been ____ accurately, but it is believed to be well beyond a hundred million dollars.

A. calculated

B. consider

C. completed

D. controlled

2. compare v. & n.

(1)比较，对比

compare A with B 把A与B相比较compare A to B 把A比作B

(2)vi. 与……类似、相似

compare with/to sb./sth. 比起某人、某物，与某人、某物相比

e.g. This school compares with the best in the country.

(3)独一无二的东西，举世无双

e.g. a diamond beyond compare

compare notes with sb.与某人交换看法（或意见等）

3. sum n. & v.

(1)n. [C]总数，总和

e.g. The sum of two and five is seven.

(2)n. [C]金额，钱数

e.g. It will cost an enormous sum to build the stadium.

(3)n.(pl.)算术题

e.g. Tom is better at sums than I am.

(4)vt. & vi. 共计

e.g. sum up the figures

in sum总而言之sum up总结，概括

4. before

(1)在……以前

e.g. He had left before I arrived.

(2)……之后才……

常用结构：It will be + 时间+ before +从句多久之后才……

It will bot be + 时间+ before +从句没过多久就会……

e.g. It will be three years before we meet again.

(3)（不久）就；还没来得及……就……

常见结构：It was(wasn’t) + 时间+ before + 从句

e.g. It wasn’t long before he returned from abroad.

5. solve 解答；解决

辨析：

易混词辨析例句

resolve 表示决心；解决困难；分解等。The conflict was resolved.

solve 主要表示解答难题等。He has solved all the problems.

辨析：

易混词辨析例句

solve “解决”，侧重的是给出一个答案。solve a mystery/a puzzle/difficulties/a problem settle “解决”，其对象通常是某种争端。settle an issue/an argument/a matter/a quarrel

6. from…on

from then/that time on从那时起from now on从现在起

from… to…from morning to night

7. reality

辨析：

易混词辨析例句

reality “真实，实在”，指某事物的

确存在。The film showed life in the poor area with great reality.

truth “真实，真理”，指对人或事

实而言。

This is an eternal truth.

8. finance n. & v.(finacial)

(1)n. 资金

e.g. finance for education

(2)n.[U]财政；金融；财务

e.g. the Minister of Finance财政部长the finance director/department财务主任、财务科

(3)(finances)(pl.)（个人、组织、国家的）财力，财源，财务管理

e.g. Buying the new house put a severe strain on our finances.

(4)v. 给……提供资金

e.g. He took a job to finance his stay in Australia.

9.mobile adj. & n.

(1)adj. 非固定的，可移动的

e.g. mobile equipment a mobile shop a mobile hospital mobile home

(2)adj. 行动方便的，腿脚灵便的

(3)adj.易于变换社会阶层（或工作、住处）的，流动的

e.g. a mobile workforce

(4)adj. 多变的，易变的