1.purification n．凈化，提純(the act or an instance of purifying or of being purified)

詞根記憶：來自purify(v.凈化；使…純凈)

例：water purification method水質凈化方法

同根詞：purge(v.使清凈)

2.Puritan n．清教徒(a group of English Protestants in the 16th and 17th centuries who lived in a very strict and religious way)；a．清教徒的(of or relating to puritans)

詞根記憶：pur(=pure純潔)+itan--講究道德純潔--清教徒

例：The ideas and institutions developed by New England Puritans had powerful effects on North American culture.

派生詞：Puritanism(n．清教徒主義)

3.purport n.意圖(intention);v.聲稱(to claim)

注意：purpose(n．目的)

例：The book purports to be an original work but is really a compilation.

派生詞：purportedly( ad.據稱)

4.pursue v.追求(to seek)；追擊(to follow in order to capture, kill, or defeat)；繼續(to proceed with)

詞根記憶：pur(向前)+sue(求)--向前追--追求

例：pursue pleasure追求快樂//Police were trying to pursue criminal copyright infringers.//The government decided to pursue its conservative economic policies.

派生詞：pursuit(n.追求；研究)

5.purview n．（工作、活動等的）范圍(range of operation or activity; scope)

6.putty n.油灰(a dough like material typically made of whiting and linseed oil that is used especially to fasten glass in window frames and to fill crevices in woodwork)；易被擺布的人（one who is easily manipulated）

例：The plumber sealed the joint in the pipes with putty.

7.pyramid n．角錐(solid figure of this shape with a base of three or more sides);金字塔(an ancient massive structure found especially in Egypt having typically a square ground plan, outside walls in the form of four triangles that meet in a point at the top)

例：The chambers inside the pyramid of the Pharaoh Menkaure(門卡烏拉法老王)were closed to visitors for cleaning.

8.quadrant n．象限（被坐標軸分開的平面中的四個區域的任一個）(an instrument with an arc of 90 degrees marked off in degrees, for measuring angles)

詞根記憶：quadr(四)+ant--由四個部分組成的--象限

例：quadrant IV 第四象限

同根詞：quadrilateral(n．四邊形)

9.quadruple v.（使）成四倍(to become four times as great or as numerous)

詞根記憶：quadru(四)+pIe(加)--加四次--成四倍

例：A certain culture of bacteria quadruples every hour.