前綴 cata-

漢：來(lái)源于希臘語(yǔ)，意為"down",是意為"up"ANA的為反義前綴。此外，cata還有"away,completely,against,throughout,backward,fully"等含有，在元音字母和輔音字母h前，cata的a脫落，變?yōu)閏at。
英：word-forming element from Latinized form of Greek kata-, before vowels kat-, from kata "down from, down to." Its principal sense is "down," but with occasional senses of "against" or "wrongly." Also sometimes used as an intensive or with a sense of completion of action. Very active in ancient Greek, this prefix is found in English mostly in words borrowed through Latin after c.1500.

1.cataclysm
n.sudden and violent change 大變動(dòng)，突變 *cate(=completely),clysm(=wash)
例句：The tearing down of the Berlin Wall graphically represented the cataclysm sweeping Eastem Europe in the post-Cold War era.柏林墻的推倒是后冷戰(zhàn)時(shí)代席卷東歐的社會(huì)大變動(dòng)的生動(dòng)體現(xiàn)。
2.catalogue
n.lists of names set down 目錄 （描述的很詳細(xì)） *cata(=completely),log (=speech)
例句：No catalogue of Afrcan literature existed before Jansen created this record.在詹森創(chuàng)意造此記錄之前，根本不存在關(guān)于非洲文學(xué)的目錄。
3.catalyst
n. a combination which starts a reaction 催化劑；觸媒 （使釋放出來(lái)）*cata(=completely),lys(=loose)
例句：The involvement of other countries is a catalyst that will make a lasting peace possible in the tormer Yugoslavia.其他國(guó)家的介入是前南斯拉夫?qū)崿F(xiàn)永久和平的催化劑。
4.catapult
n.an ancient apparatus for hurling stones（古代用的）石弩 *cata (=away),pult (=toss,hurl)
例句：A catapult was used in ancient wars.石弩曾被應(yīng)用于古代戰(zhàn)爭(zhēng)中。
5.cataract
n. a large waterfall;a clouding of the lens of the eye 大瀑布；白內(nèi)障 *cata(=down),ract (=break)
例句：She had an operation to clear up a cataract in her left eye.她做一個(gè)手術(shù)，以去除左眼的白內(nèi)障。
6.catastrophe
n.a moment of tragedy 災(zāi)禍，大災(zāi)難 （面臨惡運(yùn)） *cat (=completely),stroph(=turn)
例句：The Johnstown flood was a catastrophe.約翰郡灌水是一場(chǎng)巨大的災(zāi)難。
7.catharsis
n. outlet for strong emotion;emptying of the bowels 情感宣泄；精神凈化 *cat<cata(=completely,away),hars (=pure)
例句：Her diary was her only catharsis.寫(xiě)日記是她唯一的感情宣泄方式。
8.category
n.類；種；部門(mén) （當(dāng)作一集體->看成一個(gè)集體）《cat-(down)+egory(assembly 會(huì)議)》