ACT考试英语词根大全（一）

actual [act=to do做；-u-；-al adj. =the act or fact表行为或事实→] adj. existing in fact；real实际的；现实的：the actual amount of money实际金

▲actualist [actual；-ist n.] n. 现实主义者

actuality [actual；-ity n.] n. 事实，现存情况；现实性

actualize [actual；-ize v.] v. 实行，使现实化

actuate [act=to do做；-u-；-ate v. =to make or cause使......→] v. cause to do驱动，激励：What motives actuated her?什么动机驱使她这样做的？

▲actuation [actuat(e)；-ion n.] n. 驱动，激励；开动

exact [ex- =out出；act=to drive驱使→“to drive out；driven out逼出来（的）”→]⑴ v. Demand or obtain by force强求，索取：He exacted obedience from his students.他强要学生服从他。⑵ adj. correct and without mistake准确的，精确的：to be exact in conduct行为一丝不苟

▲exacting [exact v.；-ing adj.] adj. 苛求的，严厉的；强索的

exaction [exact v.；-ion n.] adj. 强索；勒索；榨取

exactitude [exact adj.；-itude n.] n.精确（性）；严格，严谨

react [re- =back回返；act=to do做→] v. ①do or act in reply反应：She was slow to react.她反应迟钝。②do against反动，反作用：to react against oppression反抗压迫

▲reaction [react；-ion n.] n.反应；反作用；反动

reactor [react；-or n.] n. 引起反应的人或物；反应堆

reactive [react；-ive adj.] adj. 反应的；反动的

interact [inter- =between在......之间；act=to do做→“to do between two things在两者之间互动”→] v. have an effect on each other互相作用，互相影响：All things are inter-related and interacted on each other.一切事物都是互相联系又互相影响的。

▲interaction [interact；-ion n.] n. 互相作用；相互

interactant [interact；-ant n.] n. 反应物

interactive [interact；-ive adj.] adj. 互相作用的；交互的

transact [trans- =across or though穿过；act=to drive驱使→“to drive through使通过”→] v. carry on；manage执行，办理：He transacted some businesss at bank.他在银行处理一些事务。

▲transaction [transact；-ion n.] n. 办理，处理；交易，业务

transactor [transact；-or n.] n. 办事人，处理者

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