资源简介

(共25张PPT)
-act-to drive,draw out or move行动，做
act,action,active,activity,actor,
actress,actual,exact,radioactive,react,
interaction,
Objectives:
通过词根词缀拆解和词源解析，掌握act,action,active,activity,actor,actress,actual, actuary, actuate; radioactive, counteract; exact; interact; react; retroactive; transact; transaction等词及其核心词.
1.interact / nt r kt/ v.互动，交流
inter-,在内，在中间，相互，act,行动，作用。"act on each other, act reciprocally/r s pr kli/
," 1805, from inter- + act (v.). Related: Interacted; interacting.
derivatives of interact
interactive / nt r kt v / a.交互式的；相互作用的
interactional / int r k nl / a.相互作用的
interaction / nt r k ( )n / n.相互作用；[数] 交互作用
教材复现：
We use both words and body language to explore our thoughts and opinions in our ___________ with other people.
interactions
2.act / kt/ v.行动；n.行为
derivatives of act:
action/ k ( )n / n.
active a.
activity n.
actor n.
actress n. -ess,表女性
2023新高考I阅读理解C：
Part one concludes by introducing my suggested method for adopting this philosophy: the digital declutter. This process requires you to step away from optional online activities ： for thirty days.
3.actual/ kt u l/ a.真实的，实际的
-act-,-u-,-al
derivatives of actual
actually/ kt u li / ad.
actualize/ kt u la z/ v.
actualization/ kt la ze n/ n.
actuality/ kt u l ti/ n.现状；现实；事实
2024新高考I 阅读理解D
Using a global dataset of 1.9 billion records of plants, insects, birds, and animals, Daru and his team tested how well these data represent actual global biodiversity patterns.
高考复现：2025新高考读后续写
A few days passed, and I hadn’t heard anything from my brother. I texted him and expressed wishes for him to come out again. His reply came as a surprise—a shock, actually: “Not a chance.” Clearly, he was unhappy over the way we had parted. After all, I had left him little choice. Well, he’ll get over it, I reasoned.
4.exact/ ɡ z kt/a.确切的，精确的
ex-, 向外。-act, 做，驱使，称量，词源同act, examine, exigent. 即称量的，精确要求的。
exacting a.严格的；苛求的；吃力的
exactly ad. 恰好地；正是；精确地；正确地
exactitude/ ɡ z kt tju d/ n.
正确，精确；严格，规规矩矩
exaction 强求；勒索；榨取；苛捐杂税
exactness 正确；精确
高考复现：2025新高考七选五
Catherine Murphy, a cafe worker in a green shirt and black hat, makes sure that each customer gets exactly what they order. She goes back and forth between machines to make the drinks.
5.counteract/ ka nt r kt/ v.抵制，抵消，中和;
counter-, 同contra-，相对，相反,
-act-, 行为。
derivatives of counteract
counteractive a. 起反作用的
counteraction n. 反作用
6.react/ri kt/ v. （作出）反应；起化学反应
re-,相反，act,行动。引申词义反应，反抗。
derivatives of react，
reaction/ ri k n / n.
reactive/ri kt v/ a.
reactor /ri kt (r)/ n. 反应堆，反应器
教材复现：How do I know my students
_______ to body language is an important component of being a teacher.
Reacting
7.radioactive / re di kt v/ a.放射性的
-radio-射线,放射 + -act-行动 + -ive形容词词尾。
radioactivity / re di k t v ti/ n.
-ity 抽象名词后缀；
8. transact / tr n z kt / v. 交易，处理
trans-across, beyond, through + -act-行动
transaction/tr n z k ( )n/ n.交易，买卖，业务
transactor/ tr n z kt (r) /
9.retroactive/ retr kt v/a.追溯的；
retro-,向后，往回，active,有效力的。
If a decision or action is retroactive, it is intended to take effect from a date in the past. (决定或行为)有追溯效力的。
retroactively/ retr kt vli/ ad.追溯地
10. actuary/ kt u ri/ n. [保险] 保险计算员；保险精算师
a person who is employed by insurance companies to calculate how much they should charge their clients for insurance.
1550s, "registrar, clerk," from Latin actuarius "copyist, account-keeper," from actus "public business" (see act (n.)). Modern insurance office meaning first recorded 1849.
11.actuate/ kt ue t/ vt.开动（机器等）；促使，驱使；激励（人等）
actuator / kt e t (r) / n.[自] 执行机构；激励者；促动器
actuation/ kt u e n/ n.冲动，驱使；刺激；行动
They were _______ by desire.
actuated
语法填空：
Action: The Antidote to Anxiety
Feeling anxious about exams, your future, or social pressures This is a common experience, but the most effective way to counteract this unease is not by overthinking, but through __1_（decide） action. When you feel worry actuate within you, don‘t allow it to become paralyzing. Instead, ____（conscious） channel that nervous energy into something active and productive.
Consider your education as a continuous __3__(interact)between you and the world of knowledge. You cannot remain a passive spectator in the audience, merely __4__(observe) the actor and actress on the stage of information. To gain a deep and exact understanding, you must react to the material, question it, and engage with it dynamically. Every successful transaction of ideas __5__(require)you to transact—you must invest your focus and effort to receive genuine _6_（comprehend）. Don't fix solely on the final grade; trust that the actual power and growth lie in the consistent process of doing. Even an actuary, who specializes in _7__(calculate) risk, knows that some probabilities only become clear through movement.
The very activity itself generates momentum and __8_(strong). This principle can even be retroactive; taking a positive step forward today can reshape how you feel about yesterday's anxieties. It is similar to radioactive decay—an unstoppable, transformative process once it is initiated.
Therefore, remember that every single action you take, from starting a difficult homework problem __9_ organizing your study schedule, builds inner fortitude. Each act chips away at doubt and creates tangible change. So the next time anxiety appears, your response must be immediate: act. Move, do, and engage. You will quickly discover that purposeful action is the very force that produces the power to overcome any challenge, turning anxiety into __10__（accomplish）.
参考答案：
1.decisive 2.consciously
3.interaction 4.observing
5.requires 6.comprehension
7.calculating 8.strength
9.to 10.accomplishment

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