1. [由此及彼]根据已知单词的词义推断出其同根词的词义。
① correct a.正确的→incorrect a.
② direct a.直接的→indirect a.
③ regular a.正规的；规则的→irregular a.
2. [同义相连]将左栏中的单词和右栏中相对应的词义连接起来。
① corrector a.指导者；导向器
② director b.校正者；校对员
③ erector c.调整者；矫正器
④ rectifier d.树立者；建立者
⑤ rector e.教区长；校长；负责人
3. [望文生义]根据所学词根的知识推测下列单词的词义。
① directional a.
② indirection n.
③ regularization n.
④ regulator n.
4. [寻根问底]指出下列单词的词根并领会其词义的由来。
① regent n.摄政者
② regicide n.弑君
③ regulate v.管理；调整；校准
regulation n.规章；法规；管理；调整；校准
regulative a.管理的；调整的；调节的
④ regime n.政体；统治方式；社会制度
regimen n. [古]政体；统治方式；社会制度
⑤ rectum n.直肠
rectitis n.直肠炎
⑥ rectitude n.正直；严正；正确
⑦ rector n.教区长；校长
rectory a.教区长住所
⑧ regiment n. [军] 团
78. rupt [L]=to break破
常用词corrupt，interrupt，disrupt和erupt都是rupt的派生词，词根rupt是拉丁动词rumpere的动名词词干，意思相当于to break（破）。
corrupt [cor-(com-)=thoroughly完全地；rupt =to break破→“to break thoroughly完全破坏”→]Ⅰv. destroy morally;spoil使腐败；腐蚀：to corrupt the minds of young people腐蚀年轻人的思想→Ⅱa. dishonest;immoral贪污的；腐败的：corrupt officials贪官污吏
▽corruption [corrupt;-ion n.] n.腐化；贪污
corruptible [corrupt;-ible a.] a.易腐化的；可收买的
interrupt [inter- = between 在……中间；rupt = to break 破→“to break between 在中间破入”→] v. break into the continuity of;stop temporarily打断；中断：to interrupt the speaker打断演讲者
▽interruption [interrupt;-ion n.] n.打断；中断
disrupt [dis-=apart分开；rupt=to break破→“to break apart破开”→] v.① break up分裂：to disrupt a nation分裂一个民族② upset破坏：to disrupt a meeting破坏集会
▽disruption [disrupt;-ion n.] n.分裂；破坏
erupt [e-(ex-)=out出；rupt=to break破→] v. break out, or burst out爆发；喷出：The volcano erupted at noon.火山在中午爆发。
▽eruption [erupt;-ion n.] n.爆发；喷发
rupture [rupt = to break 破；-ure n. = the state 表状态→“the state of breaking破裂的状态”→] n. breaking off破裂：The rupture between the two countries was healed.两国间的破裂关系修复了。
bankrupt [bank=bench板凳；rupt=to break破，断→“the broken bench of a money-exchanger钱商的断板凳”→“broken business破产的生意”→]Ⅰn. person who breaks his business破产者→Ⅱ a. broken in business破产的：The company went bankrupt last year.该公司去年破产了。
▽bankruptcy [bankrupt;-cy n.] n.破产；无偿付能力
abrupt [ab-=off分离；rupt =to break破，裂→“to break off分裂；分离”→] a.① very sudden or unexpected, as if broken off（像断离似的）突然的；出其不意的：The road is full of abrupt turns.这条路有许多急转弯。② suddenly sloping陡峭的：abrupt slope陡峭的斜坡
▽abruption [abrupt;-ion n.] n.突然分离；分裂；断裂
irrupt [ir-(in-)=in入；rupt=to break破→] v. break in, or enter forcibly侵入；闯进：to irrupt into a house闯入民宅
▽irruption [irrupt;-ion n.] n.侵入；闯进
