大学英语核心词汇(3-2).ppt

New Horizon College English I Unit 1-B  expand aware barrier reflect critical perspective 1. expand -1 v. (cause to ) increase in size, number, degree or volume 扩大, 扩展, 扩张 【例句】 Irons expands when it is heated. 铁加热时就膨胀。 The writer expanded his short novel into a long one. 那位作者把他的短篇小说扩展为长篇。 expand -2 【辨析】expand extend expand 侧重指“上下、左右、前后的面或体的伸展”,特别 指在大小、面积、容积、体积或范围等方面的增长 Air expands when heated. 空气受热膨胀。 extend 指加大空间、加长时间或扩大范围，如： The baseball season may be extended. 棒球季节可能会延长。 2．aware -1 a. having knowledge or understanding 意识到的，知道的（同conscious, 反unaware） 【例句】 New babies are sometimes not aware of other people. 新生儿有时并不意识到他人的存在。 【记忆】awareness n.知道, 晓得 aware -2 【搭配】 be aware of/that…知道 He must have been aware that his parents’ marriage was breaking up. well/fully/acutely aware 非常清楚 They were well aware that the company was losing money. so/as far as I am aware 据我所知 As far as I am aware, they are a happily married couple. 3. barrier -1 n. 1) sth. used to keep people or things apart or to prevent or control their movement 栅栏，关卡，检票口 【例句】Because the road was being repaired, barriers were put up to prevent people from driving in that area. 因为修路而架起了栅栏，不让汽车开到那里。 2) (to) sth. non-physical that keeps people apart or prevents movement 障碍，隔阂 【例句】Mary did not let her lack of money become a barrier to getting a good education. 玛丽不让缺钱成为她接受良好教育的障碍。 3) a physical object that keeps two areas, people etc apart 屏障 barrier -2 【例句】The mountains form a natural barrier between the two countries. 这些山形成了两国间自然的屏障。 【搭配】a barrier to ······的障碍 Problems with childcare remain the biggest barrier to women succeeding at work. barrier between ······之间的障碍 We want to break down barriers between doctors and patients. cultural/ ideological/ language/ trade barrier 文化/思想/语言/贸易障碍 abolish/ break down/ demolish/ remove/ smash/tear down the barrier 消除障碍 buil