book2 unit3 computers期末复习.docVIP

Book 2Unit3 Computers复习 重点词汇 1. sum n. 金额; 款项; 总数; 总和in sum简言之; 总而言之 2. consist of : 由…构成；由…组成。无被动语态。 · The United Nations Organization consists of over 160 nations. 联合国组织由一百六十多个国家组成。 ①The air ________more than 70%of nitrogen. A. consists of B. complains of C. approves of D. dreams of ②A medical team _______of five men and two women nurses ______sent to the countryside this morning. A. consists; were B. consisting; was C. consisted; was D. being consisted; were 3. Signal vi. vt. 发信号，示意 n. 信号，暗号 ★signal (to) sb to do…. 向某人发出做….的信号 ★【拓展】mark symbol sign signal sign:迹象 、招牌 后面常常跟that从句。表示有......的迹象、征兆signal:（报警）信号、红绿灯 A red lamp is often a danger signal比较具体symbol:象征The lion is the symbol of courage 比较抽象mark:分数、做标记The road we should take is marked on the map①The policeman_____ the children to cross the road quickly. A. let B. made C. signaled D. called ②The _____if cell phone is poor here. That is why I can’t call you. A. message B. space C. signal D. service 4. in a way : 在某种意义上，在某种程度上 【拓展】in the way 挡道；造成阻碍no way 没门儿 in no way 决不，无论如何都不（位于句首时构成倒装）①I can’t see the word on the blackboard. Your head is . A. on the way B. in a way C. by the way D. in the way ② --I think he is taking an active part in the social volunteer work . --I agree with you _______. A. on the way B. in a way C. by the way D. in the way ③ --–I think you should phone Jenny and say sorry to her ---___, it was her fault. A no chance B not possible C no way D not at all 5. make up ：组成；虚构（故事，诗等）make up for sth 补偿make sth out 理解；懂得；辨认出①In Singapore, a southeastern Asian country, the Chinese people _______the largest percentage of its population, so you can speak Chinese there. A. make up B. take up C. hold up D. turn up ②The ideas made me so confused that it took me seconds to______ A. make it up B. make it out C. make it over D. make