1. [詞海垂釣]從詞典中“釣”出一串同根詞吧。
① e-(ex-)
② tra-(trans-)
③ retro-
2. [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 convertible a.可變換的→inconvertible a.
② reversible a.可逆的→irreversible a.
③ advertent a.注意的→inadvertent a.
3. [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 reconversion a.墮落；反常
② subverter b.再轉(zhuǎn)變；恢復原狀
③ diversification c.顛倒；倒退
④ reversal d.顛覆者
⑤ version e.翻譯；譯本
⑥ perversity f.多樣化；多種經(jīng)營
4. [舉一反三]根據(jù)已知單詞的詞義推斷出其同根詞的詞義。
A. introvert v.使內(nèi)向；使內(nèi)翻→① introverted a.
→② introversion n.
→③ introversible a.
B. conversation n.會話；交談→① conversational a.
→② conversationally ad.
→③ conversationalist n.
C. adverse a.敵對的；不利的→① adversary n.
→② adversity n.
→③ adversely ad.
D. advertise v.作廣告；登廣告→① advertiser n.
→② advertisement n.
→③ advertising a.
5. [尋根問底]指出下列單詞的詞根并領(lǐng)會其詞義的由來。
① contravert v.辯論；反駁
controversy n.爭論；論戰(zhàn)
② conversant a.熟悉的；精通的
conversance n.熟悉；精通
③ verse n.詩句；詩
versify v.作詩
versification n.作詩法；詩體
④ versatile a.多方面的；多才多藝的
⑤ obvert v.換個面觀看（事物）
obverse n.相互對應面；正面 a.正面的
⑥ verso n.（書的）左頁；（書的）封底
⑦ vertical a.垂直的 n.垂直線；垂直面
⑧ vertebra n.脊椎
vertebrate n.脊椎動物 a.有脊椎的
⑨ convertiplane n.平直兩用飛機
⑩ invertase n. [生化]轉(zhuǎn)化酶，蔗糖酶
97. vid, vis [L]=to see看見
在常用詞evident，provide，divide，television和visit中，vid和vis是一對同源根。vid來自拉丁動詞videre，其意思是to see（看見），vis是它的動名詞詞干。
evident [e-(ex-)=out出；vid=to see看；-ent a.=-ing……的→“seeing out看得出的”→] a. easily seen or recognized;clear顯而易見的；明白的：It is evident that you have made much progress.顯然你已經(jīng)取得很大的進步。
▽evidence [e-;vid;-ence n.] n.明顯；明白；證據(jù)
evidential [evident;-i-;-al a.] a.證據(jù)的；證明的
self-evident [self-;evident a.] a.不證自明的
provide [pro-=beforehand事先；vid=to see看；-e→“to see beforehand事先預見到”→] v.① prepare or supply beforehand預備；供給：to provide the food 供應食物 ② supply with necessary things for life;support提供生計；贍養(yǎng)：to provide for five children贍養(yǎng)五個孩子
▽provider [provid(e);-er n.] n.供應者；家庭的供養(yǎng)人
provision [pro-;vis;-ion n.] n.供應；供應品；預備
divide [di-(dis-)=apart分開；vid=to see看見；-e→“to see apart分開來看”→] v.① separate into parts劃分：to divide a class into four groups把一個班級分成四組 ② share分配：Let's divide the job.我們分工一下吧。
▽dividend [divid(e);-end n.] n.被除數(shù)
divisor [di-;vis;-or n.] n.除數(shù)
division [di-;vis;-ion n.] n.分開；劃分；分配
divisible [di-;vis;-ible a.] a.可分的；可除盡的
provident [pro-=beforehand事先；vid=to see看見；-ent a.=-ing……的→] a. seeing beforehand and providing for the future;prudent有遠見的；遠慮的：provident statesmen有遠見的政治家
▽providence [pro-;vid;-ence n.] n.遠見；[大寫]天意；上帝
providential [provident;-i-;-al a.] a.上帝的；天意的
television [tele-=far遠；vis=to see看；-ion n.=the manner表行為方式→“the way of seeing at a distance在遠距離收看的方法”→] n. the method of sending images over a distance by electrical waves 電視：television program電視節(jié)目
▽televise [television的逆構(gòu)詞：tele-;vis;-e] v.電視播送
televisor [tele-;vis;-or n.] n.電視廣播員
televisual [tele-;vis;-u-;-al a.] a.電視的；適于拍電視的
visit [visit（來自videre的反復動詞形式visitare）=to go to see去看→]Ⅰv. go to see;pay a call upon參觀；訪問：to visit a school參觀學校→Ⅱ n. visiting參觀；訪問：to pay a visit to an exhibition參觀展覽會
▽visitor [visit v.;-or n.] n.參觀者；游客；訪問者；來賓
visitation [visit v.;-ation n.] n.訪問；探望；視察；巡視
advise [ad-=to到；vis=to see看；-e→“to see to, or to notice看到，注意”→] v.① give notice to;inform通知；告知：I have advised her that the visitors are coming.我已經(jīng)通知她客人要來了。② give counsel or opinion to勸告：I advised him to wait until the proper time.我勸他等到合適的時期再干。
▽advisable [advis(e);-able a.] a.可取的；賢明的
advice [ad-;vic (=vis);-e] n.勸告；忠告；通知；消息
revise [re-=again再；vis =to see 看；-e→“to see again so as to avoid errors再看一次以免錯誤”→] v. examine and correct校訂；修正：to revise a book校訂一本書
▽reviser/revisor [revis(e);-er/or n.] n.修訂者；校對員
revision [revis(e);-ion n.] n.修訂；修正；修訂本；修訂版
supervise [super-=over在……之上；vis=to see看；-e→] v. see or keep watch over監(jiān)督；管理：The foremen supervised the workers.工頭監(jiān)管工人。
▽supervisor [supervis(e);-or n.] n.監(jiān)督人；管理人
supervision [supervis(e);-ion n.] n.監(jiān)督；管理
vision [vis=to see看；-ion n.=the act or result表行為或結(jié)果→“the act or result of seeing看的行為或結(jié)果”→] n.① sense of sight視覺；視力：to wears glasses to improve vision戴眼鏡矯正視力② insight or imagi-nation眼光；想象力：a man of vision有眼光的人③ something seen in the mind's eye幻見或夢見之物：He had a vision of owning a ranch.他夢見自己擁有一個大農(nóng)場。
▽visional [vision;-al a.] a.夢幻的；非實有的
visible [vis=to see看；-ible a.=capable of可……的→] a.① capable of being seen看得見的：The star is visible to the naked eyes.那顆星用肉眼可以看到。② evident明顯的：The object seems to serve no visible purpose.這東西好像沒什么用處。
▽visibility [visib(le);-ility n.] n.可見性；能見度
