2021大學(xué)英語四級英語詞根練習(xí)100天(匯總)
1. [同義相連]將左欄中的單詞和右欄中相對應(yīng)的詞義連接起來。
① ambitious a.有野心的；有抱負的
② transitory b.開始的；入門的
③ initiatory c.煽動叛亂的
④ seditionary d.關(guān)于死亡的，訃告的
⑤ obituary e.短暫的；曇花一現(xiàn)的
2. [尋根問底]指出下列單詞的詞根并領(lǐng)會其詞義的由來。
① ambit n.界線；范圍；領(lǐng)域；涉及面
② coition n.性交（提示：co-=with）
③ preterit(e) n.過去時
preterition n.省略，不提；忽略，遺漏（提示：preter-=past）
④ adit n.進口，入口；進入，到達（提示：ad-=to）
3. [節(jié)外生枝]下列單詞也是it的同根詞，只是詞根發(fā)生較大的變化。
① itinerate v.巡回，巡游[it→itiner]
itinerant a.巡回的，巡游的 n.巡回者
itinerancy n.巡回，巡游
itinerary n.旅程；路線；旅行計劃
② perish v.喪生；消亡；腐敗，腐爛[it→ish]
perishable a.易腐敗的；易死的；易消亡的
③ transience n.短暫，倏忽；無常[it→i]
transient a.短暫的，倏忽的；無常的
④ issue v.流出，出來，發(fā)出；發(fā)行[it→iss]
issuer n.發(fā)行者，發(fā)行人
46. jac, ject [L]=to throw投擲
詞根jac和ject是同源的，它們都來自拉丁動詞jacere，意思相當于to throw（投擲）。其中，jac是不定式詞干，在英語中派生詞較少；ject是動名詞詞干，有較強的派生能力。
adjacent [ad-=to, next to向，靠近；jac=to throw投；-ent a.=-ing……的→“being thrown to something，or lying next to it被投向某物的，靠近某物放置的”→] a. situated or located near one another;adjoining鄰近的；毗連的：adjacent troops友鄰部隊
▽adjacency [ad-;jac;-ency n.] n.毗鄰；接近；鄰接物
inject [in-=into入；jest=to throw投→“to throw or shoot into投入或射入”→] v. shoot or force some fluid or drug into the body with a syringe注射：The nurse injected penicillin for him.護士給他打了青霉素。
▽injection [inject;-ion n.] n.注射；針劑
project [pro-=forward向前；ject=to throw投射→]Ⅰv. throw forward投擲，發(fā)射：to project a guided missile發(fā)射導(dǎo)彈→Ⅱn. something put forth or proposed;plan提出或規(guī)劃的事；計劃：a project for developing local industry發(fā)展地方工業(yè)的規(guī)劃
▽projector [project v.;-or n.] n.放映機；計劃人
projectile [project v.;-ile a./n.] a.拋射的 n.拋射體
eject [e-(ex-)=out出；ject=to throw投→“to throw out扔出去，拋棄”→] v. cast out;expel逐出；驅(qū)逐：He was ejected from the country.他被驅(qū)逐出國。
▽ejector [eject;-or n.] n.驅(qū)逐者；噴射器
ejective [eject;-ive a.] a.噴出的；逐出的
reject [re-=back回；ject=to throw投→“to throw back something given or unneeded拋回所給的或不需要的東西”→] v.① refuse to accept拒受，抵制：to reject an offer of help拒絕別人的幫助② throw away;put aside拋棄；剔除：to reject weak seeds剔除不好的種子
▽rejectee [reject;-ee n.] n.被拒絕者；遭剔除者
rejector [reject;-or n.] n.拒絕者；拋棄者
adjective [ad-=to向；ject=to throw投；-ive a.=being……的→“being thrown to a main body被投向主體的”→]Ⅰa.① added;dependent添加的；從屬的：adjective dyes間接染料② added to noun as to qualify it修飾名詞的；形容詞的：an adjective phrase形容詞短語→Ⅱn. word added to a noun to qualify it形容詞：attributive adjective定語性形容詞
▽adjectival [adjectiv (e) n.;-al a.] a.形容詞的
object [ob-=in the way of在……的面前；ject=to throw投→“something thrown in one's way被投放在眼前的物體”→] n.① things observed or material things客觀物；物體：shining objects發(fā)光體② things aimed at, or purpose目的物；對象：an object of study研究對象③ word or group of words aimed at by a verb or preposition（動詞或介詞的）賓語：the object of a transitive verb及物動詞的賓語
▽objective [object;-ive a.] a.客觀的；賓語的
objectify [object;-ify v.] v.使客觀化；使具體化
subject [sub-=under在……之下；ject=to throw 投→“to throw under one's control投在某人控制之下”→]Ⅰv. throw or bring under control使受制，使隸屬：Accient Rome subjected most of Europe to her rule.古羅馬帝國使歐洲大部分臣屬于它。→Ⅱa. subordinate從屬的：a subject state屬國→Ⅲ n.① one who is subject to a sovereign臣民：the subjects of a king國王的臣民② that which subjects the purpose of speaking or writing主題；題目：the subject of conversation談話的主題③ the part in a sentence which subjects主語：“I”is the subject in“I see the cat”.“I”是“I see the cat”的主語。
▽subjective [object;-ive a.] a.主語的；主觀的
deject [de-=down下；ject=to throw or cast投，拋→“to cast down in spirit情緒拋落下去”→] v. discourage;make sad or gloomy使沮喪；使氣餒：She looked dejected.她顯得垂頭喪氣的。
2021大學(xué)英語四級英語詞根練習(xí)100天(匯總)
