选修unitLanguagepoints自做课件.ppt

* Merry Christmas happy New Year! * 4．average adj.平均的；一般的 n．平均数 v．算出……的平均数 on (the/an) average above/below the average be of average height/intelligence 平均起来 一般水准以上/下 中等个头/智力 ，men smoke more cigarettes than women.平均起来，男子比女子吸烟多。 Economic growth in this city is well the national . 本市的经济增长远在全国平均水平之上。 On average above average * Merry Christmas happy New Year! * 【即时应用】 Dont expect too much of him. After all，he is a child of ______ intelligence. A．average B．slight C．strange D．different 【解析】　average平均的，正常的；slight轻微的；strange陌生的；different不同的。句意：不要对他期望太高，毕竟他只是一个普通智力的小孩。 * 5．circumstance n．环境；情况 under no circumstances 决不；无论如何都不 under any circumstances 在任何情况下 * Merry Christmas happy New Year! * I will be with you under any circumstances.  must you leave the house. 你无论如何也不能离开这屋子 Under no circumstances 6.glance　vi.看一下,扫视　n．一瞥 归纳拓展 (1)glance at/over/through 浏览;匆匆地看一眼 (2) at a glance 一眼;立刻 at first glance 乍一看 take/have a glance at 匆匆看一眼 He could tell at a glance what was wrong with the car. ③I took a glance at the hall and found many familiar faces among the audience. 我扫视了一下大厅,发现观众中有许多熟悉的面孔。 [易混辨析] glance,glare,stare glance 指快速地看某人或某物一眼。 glare 怒视 stare 长时间注视某人或某物。 [巧思妙解] 用glance,glare,stare填空 (1)He walked and ____________ at his watch now and then. (2)They ____________ at each other across the table after the quarrel. (3)It is bad manners to ____________ at strangers in the public. glanced glared stare 14. build up 逐步建立，增加， build up one’s fortune build up the business This built up my hope after the interview. Sediment (沉淀物)builds up on the ocean floor. collect 累积, 收集 累积财富 扩大, 发展 增加, 支持, 树立 16. keep on doing 继续做某事 （=continue/go on doing）。如： We kept on studying late into the night. keep on doing 与keep doing 在意思和用法上大致相同，经常可以互换使用。 15. so long as = as long as (只要，如果) Y