1.categorical a.無條件的．絕對的(absolute)；分類的(of a category)

詞根記憶：來自category(n.種類；范疇)

例:The boss gave acategorical no for an answer.

2.category n．類別，種類(any of several fundamental and distinct classes)

例:There are several categories of surgical procedures that are often performed unnecessarily.

派生詞：categorical(a.類的)

3.cater v.滿足（需要）(to supply what is required or desired)

例:Will the restaurant cater to our special requests?

4.caterpillar n.毛蟲(larva of a butterfly or moth)

該詞本意是hairy cat(長毛的貓)，其中pillar意為hair

例:Once ingested by a caterpillar, the crystals dissolve, releasing the virus to infect the insect's cells.

5.cathedral n．大教堂(main church of a district under the care of a bishop);a．大教堂的(of a cathedral)

詞根記憶：cathedra(拉丁文：主教座位)+I--設有主教座位的地方--大教堂

例:No doubt castle and cathedralbuilding was not totally barren of profit.

6.Catholic a．羅馬天主教的(Roman Catholic)

例:Roman Catholic church羅馬天主教堂

7.causative a.成為原困的（effective or operating as a cause）

詞根記憶：來自cause(n.原因)

詞根記憶：Sources of financing must be a more important causative factor in the success of a start-up company.

8.cease v/n.終止，停止(to stop）

聯想記憶：c+ease(安逸，安心)--生于憂患，死于安樂--終止，停止

例:The government ceased to regulate major industries.

9.celestial a．天體的，天空的(of or relating to the sky)

詞根記憶：celest(天空)+ial一天空的

例:celestial body天體

同根詞：celeste（n.天藍色）

10.cellular a．細胞的(of or consisting of cells)；蜂窩狀的(full of cells, shaped like a beehire)

詞根記憶：cell(細胞)+ular --細胞的

例:cellular structure蜂窩狀結構

派生詞：intracellular(a．細胞內的)：multicellular(a.多細胞的)i subcellular(a.亞細胞的)：unicellular(a.單細胞的)