​231 politics 政治

词根： -polit- 国家,城市,政治
变形：polit,polic,poli
（1）.cosmopolitan 世界的,全球的

记忆方法：cosmo(宇宙)+polit(城市)→全世界的
实例：Hong Kong has always been a cosmopolitan city.

（2）.metropolis 大都市

记忆方法：metro(=matr母亲的)+polis(城市)→母市→大都市
衍生: metropolitan
实例：He was dazzled by the gaiety and splendour of the metropolis.

（3）.apolitical adj.对政治不感兴趣的,与政治无关的

记忆方法：a(不,相反的)+political(政治的,对政治有兴趣的)→　对政治不感兴趣的
实例：Henry used to be totally apolitical, but I think he is now politically more aware.

232 credit 信用

词根： -cred- 相信

（1）.credulous 轻信的

记忆方法：cred(相信)+ulous(多)→过多相信的→轻信的
实例：You must be credulous if she fooled you with such a story.

（2）.credential 凭证

记忆方法：cred(相信)+ential→让人相信的文件 近义词: certificate
实例： Enjoy fantasy games, merchandise discounts and other benefits reserved for Credential holders.

（3）.discredit 使不信任,败坏名声

记忆方法：dis(不,无)+credit(信用)→无信用
实例：A secret unit within the company was set up to discredit its major rival.

（4）.credence n.相信(传言); 凭证;真实性,可信性

记忆方法：cred(相信, 信任)+ence(表名词)→ 相信
实例：Good studies are needed to lend credence to the notion that genuine progress can be made in this important field.

（5）.credo n.信条;教义

记忆方法：cred(相信, 信任)+o(表名词)→ 相信的条例→信条
实例：To be the first to bear hardship and the last to enjoy comfort is our credo.

233 encrypt 加密

词根： -crypt- 秘密,隐藏

（1）.cryptic 隐晦的,神秘的

实例：The notes are getting more and more cryptic.

（2）.cryptonym 匿名

记忆方法：crypt(秘密的)+nym(名字)→匿名 近义词: alias
实例：A hundred other unseen locks and keys, oaths of secrecy, and cryptonyms stood in my way.

（3）.decrypt 解密

记忆方法：de(分开)+crypt(秘密)→解密
实例： A newer system is required to decrypt this encrypted file.

234 culprit (参见难记词表) 犯人

词根： -culp- 罪过

（1）.culpable 有罪的

记忆方法：culp(罪过)+able(表形容词)→有罪的
实例：Their decision to do nothing makes them culpable.

（2）.exculpate 开脱,使无罪(主要是申请,即辩白阶段)

记忆方法：ex(出)+culp(罪过)+ate→开脱罪过
实例：He exculpate himself from stealing the money.

235 encumber 妨碍

词根： -cumber- 躺下(lie),障碍(barrier)

（1）.succumb 屈从,死亡

记忆方法：suc(下面)+cumb(躺)→躺在下面→屈从,死亡
实例：The Minister said his country would never succumb to pressure.

（2）.cumbersome 笨重的

记忆方法：cumber(障碍)+some(…的)→有障碍的→笨重的,费力的
实例：Although the machine looks cumbersome, it is actually easy to use.

（3）.incumbent 在职的,有义务的

记忆方法：in(入)+cumb(躺)+ent→躺在(职位)中的→在职的,有义务的
实例：It is incumbent upon all of us to make an extra effort.

（4）.recumbent 躺着的

记忆方法：re(一再)+cumb(躺下)+ent(表形容词)→躺着的
实例：The assumption of the recumbent position is associated with shoulder pain.

236 tailor 裁缝

词根： -tail- 剪裁(cut)

（1）.curtail 缩短

记忆方法：cur(短)+tail(剪)→缩短
实例：NATO plans to curtail the number of troops being sent to the region.

237 occasion 情况,发生

词根： -cas- 落下(occasion=oc(to)+cas(落下)+ion→事情落下→发生) cas, cata

（1）.casual 偶然的

记忆方法：cas(落下)+ual→落下来的→偶然的
实例：But advisers past and present said that characterizing any conversation with Putin as casual would be a mistake.

（2）.casualty 伤亡人数

记忆方法：注意和causality区分
实例：There are fears that the casualty toll may be higher.

难记词

270.crank 曲柄,古怪的人

记忆方法：联想记忆: 和crane(起重机)一起记忆,crank的形状有些像crane
衍生: cranky古怪的
实例：1. He looked like a crank. 2. A crank is a device that you turn in order to make something move.

271.crayon 彩色蜡笔

记忆方法：联想记忆: c=can+ray(光线-7彩)+on→can put ray on→彩色蜡笔
实例：A crayon is a colorful stick of wax made for drawing and coloring.

272.crest 顶峰,浪尖,头冠

记忆方法：联想记忆: c=can+rest→can rest是因为到顶了
实例：1. Surfers are riding the crest of the wave. 2. When someone crests a hill, they reach the top of it.

273.crevice 裂缝

记忆方法：联想记忆: 词根cred表示信任,而crev表示裂缝(v很像出现的裂缝)
实例：I saw a plant growing out of a crevice in the wall.

274.crumble 弄碎→衍生为崩溃

记忆方法：联想记忆: crum=cram(挤压)+ble→挤压多了就碎了
实例：1. Roughly crumble the cheese into a bowl. 2. It only takes a minute for the football hopes of an entire country to crumble.

275.cue 暗示(多用于给演员的台词提示)

记忆方法：联想记忆: clue→cue
实例：The actors not performing sit at the side of the stage, waiting for their cues.

276.culinary 厨房的

记忆方法：联想记忆: cu=cut+lin=line+ary(place)→place to cut things into lines→厨房的
实例：She was keen to acquire more advanced culinary skills.

277.culvert 水沟,下水道

记忆方法：联想记忆: cul=cultivate(培养)+vert(转)→"培养"出来的转圈的东西→下水道
实例：After days of hard work , the culvert was at last completed.

278.cunning 狡猾的, 巧妙的

记忆方法：常见词,来源于can
实例：He tackled the job with a great deal of imagination, skill and cunning.

279.clement (尤其指气候)温和的

记忆方法：联想记忆: clem=climate(气候)+ent→指气候温和,后来也用来形容人 近义词: temperate, 反义词: inclement
实例：Clement weather is pleasantly mild and dry.