1. 动词用法(及物动词)
- 基本结构:boost + 名词
- 例:The government plans to boost the economy.(政府计划促进经济。)
- 常见搭配:
- boost confidence(增强信心)
- boost production(提高产量)
- boost efficiency(提升效率)
- boost immunity(增强免疫力)
2. 名词用法(可数名词,常以单数形式出现)
- 基本结构:a boost to/in + 名词
- 例:The new policy gave a boost to the tourism industry.(新政策推动了旅游业。)
- 常见搭配:
- a big/major boost(重大推动)
- a psychological boost(心理激励)
- a boost in sales(销售额增长)
3. 易混淆词对比
- Boost vs. Raise:Raise多指垂直向上“抬起”,如“raise your hand”;Boost侧重“增加、促进”,如“boost confidence”。
- Boost vs. Promote:Promote常用于“晋升、推广产品”,如“promote a product”;Boost更通用,强调“短期或迅速的提升”。
三、语境化例句与深度解析
例句1(经济类)
“The tax cuts are expected to boost consumer spending, which accounts for 70% of the national economy.”
解析:此句中的“boost”意为“刺激、促进”,后接名词短语“consumer spending”(消费者支出)。注意“accounts for”是固定搭配,意为“占比”。整句体现经济政策与消费的关系。
例句2(心理类)
“Receiving that award really boosted his self-esteem, and he became more active in class.”
解析:此处“boost”与“self-esteem”(自尊心)搭配,强调外部奖励对内在心理的积极影响。注意“boosted”的过去式形式,以及“more active”的比较级结构。
例句3(科技类)
“Adding a new processor can boost the computer’s performance by at least 30%.”
解析:该句展示“boost”与具体数值(30%)连用,表“提升幅度”。介词“by”用于引出具体比例或数值。此用法在技术类阅读中常见。
例句4(健康类)
“Regular exercise helps boost the immune system, reducing the risk of diseases.”
解析:固定搭配“boost the immune system”是高频考点。注意“reducing the risk of”是分词短语做结果状语。
四、精编试题与解题思路
选择题1
The advertisement is designed to _____ the company’s brand image among young consumers.
A. raise
B. boost
C. arise
D. rise
答案:B
解析:本题考查动词搭配。“boost brand image”(提升品牌形象)是常见商业英语表达。Raise多指物理抬起(如raise a flag),arise是动词(意为“出现”),rise是不及物动词(如prices rise)。需结合语境选择。
选择题2
The new subway line will give a major _____ to local business.
A. lift
B. promotion
C. boost
D. rise
答案:C
解析:固定搭配“give a boost to”意为“对……有推动作用”。Lift虽可作名词表“提升”,但搭配不如boost广泛;Promotion多指“晋升”或“促销”;Rise通常作动词或名词表“上升”,不用于此结构。
填空题
The government’s investment in education will _____ (促进) the development of human resources.
答案:boost
解析:根据中文提示“促进”,此处需填入及物动词。注意“boost”后可接名词短语“the development of human resources”。若填“promote”也可接受,但题目要求“boost”精讲,故优先使用目标词。
七选五选词填空(模拟自考题型)
选项:A. boost B. promote C. raise D. increase E. enhance
句子:The online course is designed to _____ students’ learning efficiency through interactive exercises.
2. 语法细节的提醒:在动词用法中,“boost”为及物动词,其后直接跟宾语,无需介词。如“boost the economy”而非“boost up the economy”。名词用法中,“a boost to”后接受益对象(如“a boost to the economy”),而“a boost in”后接具体指标(如“a boost in sales”),此区分在写作中尤为重要。