1．Division　n
　　the act of dividing or partitioning; separation 分开或分割
　　The division of wealth is very important.
　　派生词汇Divide vt 分割，分离 dividend n 红利

　　2．Splitting　adj
　　very painful 剧烈的
　　I have got a splitting headache.
　　派生词汇Split 劈开，切开adj已被分开的或被劈开的n劈开

　　3．Audible　adj
　　that is heard or that can be heard 听得见的
　　Her voice was scarcely audible above the noise of the wind.
　　派生词汇Audibly adv 能听见地 audibleness n 可被听到 audibility n 能听度

　　4．Ethnic　adj
　　of a national, racial or tribal group that has a common cultural tradition 种族的
　　Do not look at it with your ethnic view.

　　5．Causality　n
　　cause and result 因果
　　Do not forget the causality.
　　派生词汇Casual adj 表原因的，构成原因的，因果关系的

　　6．Landslide　n
　　sliding of a mass of earth, rock, etc. down the side of a mountain, cliff, etc 崩塌，滑坡
　　There is a landslide.

　　7．Aide　n
　　assistance 助手
　　They are the chief aides to the President.

　　8．Cinematograph　n
　　a movie camera or projector 电影摄影机或放映机
　　I have a cinematograph.
　　v to make films or movies 拍摄电影
　　派生词汇Cinematographer n 电影摄影师

　　9．Addicted　adj
　　unable to stop taking or using sth as a habit 入了迷的，上瘾的
　　He becomes addicted to drugs.
　　固定搭配Addict oneself to, be addicted to
　　派生词汇Addict v 使人上瘾Addictive adj 成瘾的addiction n 沉溺

　　10．Tranquilizer　n
　　drug used to diminish anxiety 镇静剂，安静药
　　She is taking tranquilizers frequently.

　　Exercises
　　1. Sound is ___ only within a limited distance.
　　2. The people on this globe is divided into groups according to __ and cultural differences.
　　3. The economists must study the ___ relationship between scarcity of goods and higher prices.
　　4. ___ behaviour should

　　答案
　　1.audible
　　2.ethnic
　　3.causal
　　4.Addictive
　　5.tranquilizers