高二北师必修8--UNIT22重点词汇词组.ppt

5. lead to/lead...to lead to sth. 导致；造成(＝cause) lead to doing sth. 导致做…… lead sb. to＋名词　引某人到…… [解题警示]　lead to中的to为介词，后接名词或动名词作宾语。 6. advocate vt.提倡；主张；n.提倡者；拥护者(尤指对某一主义或目标) advocate sth./doing sth.拥护；主张 advocate＋that从句 an advocate of sb./sth.支持……的人 Do you advocate keeping all children at school still the age of sixteen? 你主张将义务教育延长至16岁吗？ The report advocated that all buildings be fitted with smoke detectors. 报告主张所有的建筑物都应安装烟火探测器。 [解题警示]　advocate接that从句时，从句用虚拟语气，即谓语动词用(should＋)动词原形。 [考试题]　⑨(河池模拟)Our school doesnt ________ students staying in the classroom too long.We think they should have time for sports. A．advocate B．admit C．assess D．approach 答案与解析：A　考查动词辨义。advocate提倡；admit承认；assess评估；approach接近。句意：我们学校不提倡学生在教室呆的时间过长。我们觉得他们应有时间来从事体育活动。 7. threaten vt.恐吓；威胁；有……危险；危及 threaten sb. with威胁，以……相威胁 threaten to do sth.威胁要做某事 His father threatened to beat the boy if he stole again. 男孩的父亲威胁说如果他再偷东西的话，就要揍他。 While danger threatens we must all be on our guard. 危险正逼近，我们必须保持警惕。 8. substitute n．代替者，代用品 vt.用……代替…… as a substitute 作为代理人/代用品 a substitute for sth. 代替……的人或物 substitute A for B用A代替B make a substitution(of)替换/取代 [解题警示]　①substitute A for B　用A代替B ②replace A with B　用B代替A 9. all in all 总体说来；总而言之；一切的一切 in all 总共 at all 根本，丝毫，到底，究竟，全然 (not)at all 一点也(不) above all 首先，最重要的是 after all 毕竟，别忘了 10. means n．方法，手段；工具 by all means一定；务必 by means of用某办法；借助于某事物 by no means一点也不，决不 by any means全然，无论如何 by some means用某种方法 by this means用这种方式 It is all a means to an end. 这只是达到目的的一种手段。 He climbed the tree by means of a ladder. 他用梯子爬上了树。 [解题警示]　means的单数和复数形式是一样的，所以当means作主语时一定要根据句子的语境来判断谓语动词到底是单数还是复数。 Every possible means has been used to prevent the air pollution，but the sky is still not very clear. 为防止空气污染，每种可能的方法都已用过了，但天空仍然不清澈。(由every可知，在此means应是单数形式，所以谓语动词就用单数。) Many means of transportation are to be used. 很多运输方式将被使用。(由many可判断means是复数形式，这样谓语动词应是对应的复数形式。) 11. flee vt.vi.逃走，逃跑，逃离 Many German artists fled to America at the beginning of the World War Ⅱ. 第二次世界大战初期，许多德国艺术家逃到了美国。 [