? 英语四六级核心词汇每日一练 Day 5

以下是5个四六级考试中高频出现的核心词汇，附例句和题型，帮你快速掌握。

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① accelerate /əkˈseləreɪt/

词义：v. 加速;促进

例句：The government plans to accelerate economic growth by investing in infrastructure.

派生：acceleration (n. 加速)

② adequate /ˈædɪkwət/

词义：adj. 足够的;适当的

例句：The company didn’t provide adequate training for new employees.

近义词：sufficient

③ controversy /ˈkɒntrəvɜːsi/

词义：n. 争议，争论

例句：The new policy caused a lot of controversy among citizens.

搭配：spark controversy (引发争议)

④ deteriorate /dɪˈtɪəriəreɪt/

词义：v. 恶化，变坏

例句：Air quality in the city has deteriorated due to industrial pollution.

反义词：improve

⑤ fluctuate /ˈflʌktʃueɪt/

词义：v. 波动，起伏

例句：Oil prices fluctuate depending on global demand.

派生：fluctuation (n. 波动)

2. 词汇练习

（1）选词填空(从今日5个词汇中选择合适的填入句子)

The patient’s condition began to ______ after the treatment was delayed.

The stock market tends to ______ during times of economic uncertainty.

There was a heated ______ over whether the new law would benefit the public.

To ______ the process, they hired more workers for the project.

Make sure you have ______ sleep before the exam.

（2）同义替换(选出与划线词意思最接近的选项)

The debate sparked a lot of disagreement.

A. controversy B. benefit C. agreement D. discussion

The weather gradually worsened over the week.

A. improved B. stabilized C. deteriorated D. changed

3. 答案与解析

（1）选词填空

deteriorate (病人情况因治疗延误而恶化)

fluctuate (股市在经济不稳定时波动)

controversy (新法律是否对公众有利引发争议)

accelerate (为加速进程，他们雇佣了更多工人)

adequate (考试前确保充足睡眠)

（2）同义替换

A. controversy(disagreement ≈ 争议)

C. deteriorated(worsened ≈ 恶化)

坚持每天学习，四六级词汇量会稳步提升!

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