- **be efficient in (doing) sth.**:在(做)某事方面高效
- 例:She is very efficient in handling customer complaints.
- **efficient way/method/system**:高效的方式/方法/系统
- 例:We need to find a more efficient way to produce these goods.
- **efficient use of resources/time/energy**:资源/时间/能量的高效利用
- 例:The company is known for its efficient use of energy.
- **cost-efficient / energy-efficient**:成本高效的 / 节能的
- 例:This new appliance is very energy-efficient.
**4. 反义词**
- **inefficient**:低效率的;浪费的
- 例:The old system was extremely inefficient and time-consuming.
**5. 同源词**
- **efficiency** (n.):效率;效能
- 例:We must improve the efficiency of our production line.
- **efficiently** (adv.):有效率地
- 例:He manages his time efficiently.
- An efficient manager can lead a team to complete a project ahead of schedule with fewer resources.
- 一位高效的经理能够带领团队用更少的资源提前完成项目。
- Our new software has made the data entry process much more efficient.
- 我们的新软件使数据录入过程高效得多。
- To be efficient at work, you need to prioritize tasks and avoid multitasking.
- 要想在工作中高效,你需要分清任务主次并避免多任务并行。
**2. 学习与考试场景**
- The most efficient way to prepare for the exam is to focus on past papers and key vocabulary.
- 备考最有效的方法是把重点放在真题和核心词汇上。
- She developed an efficient note-taking system that helped her review quickly.
- 她开发了一套高效的笔记系统,帮助她快速复习。
- It is not efficient to study for hours without taking breaks; short rests can improve concentration.
- 连续学习几个小时而不休息是低效的;短暂的休息能提高注意力。
**3. 日常生活场景**
- This car is highly efficient, traveling 50 miles on a single gallon of gas.
- 这辆车效率很高,一加仑汽油能跑50英里。
- We installed solar panels to make our home more energy-efficient.
- 我们安装了太阳能板,让房子更节能。
- Using a dishwasher is often more efficient in terms of water usage than washing dishes by hand.
- 就用水量而言,使用洗碗机通常比手洗碗碟更高效。
**4. 科技与系统场景**
- The new public transportation system is designed to be both efficient and environmentally friendly.
- 新的公共交通系统设计得既高效又环保。
- An efficient algorithm can solve complex problems in seconds, saving valuable computing time.
- 高效的算法能在几秒钟内解决复杂问题,节省宝贵的计算时间。
(1) The new factory is much more ______ than the old one, producing twice the output with half the workers.
A. effective
B. efficient
C. sufficient
D. proficient
**答案:B**
**解析:**
- **A. effective** (有效的):强调达到预期的效果或目标。例如“This medicine is effective against the disease.”
- **B. efficient** (高效的):强调投入与产出比,以较少的资源获得较大的产出。题目中“用一半的工人产出两倍的产量”正体现了资源使用的高效性。
- **C. sufficient** (足够的):表示数量或程度足够满足需求。
- **D. proficient** (熟练的):通常指在某一技能或领域内非常熟练,后常接介词“in”或“at”。
因此,描述生产线的效率应选 B。
(2) To improve your study ______, you should create a schedule and stick to it.
A. efficiency
B. effect
C. effort
D. affection
The manager decided to replace the old, (1) ______ computer system with a modern one. The new system is not only faster but also more (2) ______. It can process data in a fraction of the time, which means employees can (3) ______ their work more quickly. This change is expected to greatly improve the overall (4) ______ of the company.
(1) A. effective B. inefficient C. efficient D. proficient
(2) A. sufficient B. effective C. efficient D. expensive
(3) A. complete B. destroy C. complicate D. ignore
(4) A. efficiency B. weakness C. difficulty D. expense
**答案:** (1) B (2) C (3) A (4) A
**解析:**
- (1) 空格前有“old, (1) ______”,且经理要“replace”(替换)旧系统,说明旧系统不好。结合全文,应选反义词“inefficient”(低效的)。
- (2) 新系统“faster”(更快),且与旧系统对比,必然更“efficient”(高效的)。同时,下文“process data in a fraction of the time”进一步印证了效率高。
- (3) 新系统速度快,所以员工能更快地“complete”(完成)工作。其他选项:destroy(破坏)、complicate(使复杂化)、ignore(忽视)均不合逻辑。
- (4) 整篇文章都在讨论效率,所以“improve the overall (4) ______”应选“efficiency”(效率)。
**3. 翻译题**
(1) 使用先进技术是提高生产效率的一个高效方法。
**参考答案:Using advanced technology is an efficient way to improve production efficiency.**
(2) 这位秘书非常干练,她总能高效地处理大量邮件。
**参考答案:This secretary is very competent; she can always handle a large number of emails efficiently.**
(3) 为了达到更好的学习效果,我们不仅要学得有效,还要学得高效。
**参考答案:To achieve better learning outcomes, we should not only learn effectively but also learn efficiently.**
**4. 写作应用提示**
在自考英语专升本写作中,若要表达“充分或高效利用某物”,可灵活运用以下句型:
- It is crucial to make efficient use of time/money/resources.
- By adopting efficient methods, we can accomplish the task with less effort.
- An efficient approach to solving this problem is to ...
例如,在环保类话题中,可以写:Governments should encourage companies to adopt energy-efficient technologies to reduce carbon emissions.
(政府应鼓励企业采用节能技术以减少碳排放。)
2. 强化语境中的辨析能力:您提供的试题中已涉及“effective”与“efficient”的辨析,这一点非常重要。我建议考生在复习时,可以尝试自己造句,对比两者在相同语境下的不同侧重。例如:“A effective medicine cures you, but an efficient production process saves cost.”(有效的药能治愈你,而高效的生产流程能节约成本。)通过对比,能更深刻地理解“效率”与“效果”的本质差异。