记忆方法
pact,词根表示“插”
插入里面→“冲击”→“影响”
n.&v.冲击,影响
双解例句
小知识
The noun impact can refer to a physical force (like a collision), an influence (a bad role model or a hero), or a strong effect (a foot of snow will have an impact on driving conditions).
Impact is used most often as a noun. A good teacher might have an impact (influence) on a struggling student. The moment two comets collide is called the “moment of impact.” But this versatile word can also be used as a verb, though many people prefer to use its synonyms instead: “affect,” “bear upon,” or “touch on.” Impacted teeth are wedged together or stuck behind each other.
实用短语
常用短语
单词用法
注意:
句中science后的介词用on或upon;impact作名词时,其所在的句子常用过去时。
The book made much impact.这本书的影响力很大。
impact on影响;对…冲击,碰撞
environmental impact环境冲击,环境影响
environmental impact assessment环境影响评价
词根词缀
词根: pact
=fastened,表示”包裹;紧的;结合”
adj.
compact 紧密的com全部+pact压紧→全部压紧→紧密的
n.
compact 合同com全部+pact压紧→全部压紧→紧密的
dispatch 派遣, 急件dis分开+patch=pact结合→v.分派, 派遣 n.派遣, 急件
impact 冲击,碰撞;影响im进去+pact包裹;紧的;结合→压进去的力量→影响力
pact 合同,条约,公约,协定pact包裹;紧的;结合→双方加紧约束→合同,条约,公约
v.
dispatch 分派, 派遣dis分开+patch=pact结合→v.分派, 派遣 n.派遣, 急件
impact 影响;挤入,压紧im进去+pact包裹;紧的;结合→压进去的力量→影响力
同义词辨析
同根词
词根:impact
adj.impacted压紧的;结实的;嵌入的;(人口)稠密的
impactive冲击的;有不良影响的
n.impaction压紧;装紧;嵌入
v.impacted装紧;挤满(impact的过去分词)