1.caseload n.办案量(the number of cases handled usually in a particular period)
例:There isnt sufficient funding to process the increased caseload of arrests and convictions that new officers usually generate.
2.cashew n．腰果(the nuts of a tropical American tree)；腰果树(a tropical American tree)
例:If the tariff were lifted and unprocessed cashews were sold at world market prices, more farmers could profit by growing cashews.
3.caste n.社会等级制度(hereditary social class system)；社会团体(any exclusive social class)
发音记忆：“卡死他”--在一个等级上卡死他，不让他上来--社会等级制度
例:a rigid caste system严格的社会等级制度//The black smiths belong to a special caste.
4.casualty n．伤亡（人）（person who is killed or injured in war or an accident）；[pl.]伤亡人数( total of the killed and injured persons)
联想记忆：casual(随便的)+ty--因为随随便便造成的--伤亡
例:They resulted in extremely high overall casuatty rates in Black combat units.
5.cataclysm n．大灾难（catastrophe）；（社会政治的）大变动(a momentous and violent event)
例:A little under a million years ago, the briny waters of the Baltic Sea began flooding into the cold North Atlantic: geologists are still debating whether the flood was gradual or created by a cataclysm.
派生词：cataclysmic(a．大变动的：洪水的)
同根词：catastrophe(n．大灾难)
6.cataclysmic a.大变动的( of a sudden violent change or a disaster)
词根记忆：来自cataclysm(n．巨变;灾难)
例:Elements heavier ihan helium would remain there if it were not for the cataclysmic supemova explosions.
7.catalog(ue) n.商品目录(complete list of items)；v.为…编目录(to make a catalog of)
例:Kim purchased some items from acatalog for $8 each.//Such artifacts are already cataloguedin museum collections.
8.catalyst n．催化剂(a substance th-at eabes achemical reaction to proceed at a usually faster rate)；促使事物发展的因素(a person or a thing that causes a change)
词根记忆：cata(下面)+lyst(=lysis溶解)--促进溶解--催化剂
例:The new taxes imposed by the government were a catalyst for revolution.
同根词：analyst(n.分析家)
9.catalytic a.催化的，起催化作用的(causing, involving, or relating to catalysis)
例:Many people who own cars made before 1993 have had catalytic converters installed in their cars.
派生词：catalytically(ad.催化地)
10.catastrophe n．灾难，灾祸(disaster)
词根记忆：cata(下面)+strophe(辖)--天转地覆--灾难
例:The perceived threat of nuclear catastrophe decreases the willingness of people to postpone consumption.
派生词：catastrophic(a．灾难性的；巨大的)
同根词：apostrophe(n.省略符号)