1. [由此及彼]根據(jù)已知單詞的詞義推斷出其同根詞的詞義。
① docile a.馴服的；馴良的→incocile a.
② indoctrinate v.灌輸→indoctrinator n.
③ doctrinaire n.教條主義者→doctrinairism n.
2. [同義相連]將左欄中的單詞和右欄中相對應的詞義連接起來。
① indoctrination a.教條至上主義
② indocility b.文件的提供或使用
③ documentation c.難馴服；倔強
④ doctrinism d.灌輸；教訓
⑤ doctorship e.博士學位
3. [節(jié)外生枝]以下單詞都來自德語。其中dact可看作doct的異體。
① docent n.教員；臨時講師
② didact n.教育者；說教者
③ didactic a.教學的；教導的；教誨的
④ didactics n.教學學；教學法
⑤ didacticism n.教導（性）；說教（性）
28. duc, duct [L]=to lead引導
常用詞conduct, educate, introduce, produce等是同根詞。它們的詞根duc或duct都來自拉丁動詞ducere，意思相當于to lead（引導）。這對詞根的孳生能力很強，其同根詞不下百個。
conduct [con-表加強詞義；duct=to lead引導→] I n.① leading;guidance引導；指導：His conduct of the business is successful.他對企業(yè)的指導是有成效的。② leading oneself to a certain result, or behaviour行為；品行：His conduct in school is good.他在學校品行良好。→Ⅱv.① lead or guide 引導；帶領：The mayor conducted us through the town.市長帶我們參觀了城市。②direct（oneself）為人，表現(xiàn)：The children conducted themselves well tonight.孩子們今晚表現(xiàn)得很好。
▽conductor [conduct v.;-or n.] n.指導者；（樂隊）指揮；導體
conductible [conduct v.;-ible a.] a.能傳導的
conductive [conduct v.;-ive a.] a.傳導性的
educate [e-（ex-）=out of從……出來；duc=to lead引導；-ate v.→“to lead out of（the ignorant state）從（無知狀態(tài)）引導出來”→] v. give training or schooling to教養(yǎng)；教育：He has been well educated.他受過良好的教育。
▽education [educat(e);-ion n.] n.教育；教育的過程
educator [educat(e);-or n.] n.教育工作者
educative [educat(e);-ive a.] a.有教育意義的
introduce [intro-=into進；duc=to lead引導；-e→“to lead into引進”→] v.① lead or bring into use引用；采用：to introduce new techniques采用新技術 ② lead into acquaintance with介紹：to introduce a new teacher to the class把新老師介紹給班上學生
▽introducer [introduc(e);-er n.] n.引進者；介紹人
introduction [intro-;duct;-ion n.] n.引進；介紹；導言
introductory [intro-;duct;-ory a.] a.介紹的；導言的
produce [pro-=forward向前；duc=to lead引導；-e→“to lead or bring forward to some result向前引導，引出結(jié)果來”→] v. bring forth;make or create生產(chǎn)；制造；創(chuàng)造：This factory produces lathes.這家工廠生產(chǎn)車床。
▽producer [produc(e);-er n.] n.生產(chǎn)者；制造者
product [pro-;duct] n.產(chǎn)品；成果
production [pro-;duct;-ion n.] n.生產(chǎn)；總產(chǎn)品；總成果
productive [pro-;duct;-ive a.] a.生產(chǎn)的；多產(chǎn)的
deduce [de-=down from從……出來；duc=to lead引導；-e→“to lead a conclusion down from從……引出結(jié)論”→] v. draw as conclusion;infer演繹；推理：I deduced that she was married by the ring on her finger.根據(jù)她手上的戒指我推斷她已經(jīng)結(jié)婚。
▽deduction [de-;duct;-ion n.] n.演繹；推論；扣除
deductive [de-;duct;-ive a.] a.演繹的；推論的
reduce [re-=backward向后；duc=to lead引導；-e→“to lead backward引回頭，使后退”→] v. ① bring from a higher position to a lower position使降級：The officer was reduced to the ranks.那個軍官被降為士兵。②make less in size, amount, value, etc.縮小；減少；貶值等：to reduce the costs降低成本
▽reducer [reduc(e);-er n.] n.縮減者；減速器
reducible [reduc(e);-ible a.] a.可縮減的
reduction [re-;duct;-ion n.] n.減少；縮小
reductive [re-;duct;-ive a.] a.減少的；縮減的
seduce [se-=aside離，偏；duc=to lead引導；-e→“to lead aside引離正道”→] v. lead astray, or draw aside from what is right勾引；引誘：She seduced him to crime.她引誘他犯罪。
▽seducible [seduc(e);-ible a.] a.易受誘惑的
seduction [se-;duct;-ion n.] n.誘惑；勾引
seductive [re-;duct;-ive a.] a.誘人墮落的
abduct [ab-=away from離開；duct=to lead引導→“to lead away from home引離家庭”→] v. take away by fraud or violence;kidnap誘拐；劫持：His forefather was abducted to America a long time ago.他的祖先是很久前被綁架到美洲的。
▽abductor [abduct;-or n.] n.誘拐者
abduction [abduct;-ion n.] n.誘拐；劫持
induct [in-=into入；duct=to lead引導→“to lead into some group引導加入某種團體”→] v.①introduce formally使正式加入：He was inducted into the trade union.他入了工會。② put in possession使就職：This ceremony inducts the cabinet into office.儀式之后，新內(nèi)閣正式就職。
▽inductee [induct;-ee n.] n.入會者；就任者
inductor [induct;-or n.] n.引導者；授職人
induction [induct;-ion n.] n.入會；就職
inductive [induct;-ive a.] a.引入的；誘入的
