catalyst
A catalyst is something that makes a change happen faster or more easily. In science, it is a substance that speeds up a chemical reaction without being changed itself.
例句
3 / 5The warm sun was the catalyst that made the snow melt quickly.
The sun was the cause that made the snow melt faster.
The new law acted as a catalyst for major social change.
The new law was the reason that society changed quickly.
His funny comment was the catalyst for the whole room laughing.
His joke made everyone in the room start laughing.
词族
记忆技巧
Think of a 'Cat' jumping on a 'List' of chores to make them happen faster.
快速测验
The new manager was a _______ for the team's success.
正确！
正确答案是： catalyst
例句
The warm sun was the catalyst that made the snow melt quickly.
everydayThe sun was the cause that made the snow melt faster.
The new law acted as a catalyst for major social change.
formalThe new law was the reason that society changed quickly.
His funny comment was the catalyst for the whole room laughing.
informalHis joke made everyone in the room start laughing.
Enzymes are biological catalysts that help our bodies work.
academicEnzymes are natural things that speed up body processes.
The new technology was a catalyst for the company's growth.
businessThe new tech helped the company grow much faster.
词族
常见搭配
常用短语
catalyst for growth
something that makes a business or person get bigger/better
prime catalyst
the most important reason something happened
economic catalyst
something that helps the economy move faster
容易混淆的词
A catastrophe is a very bad disaster, while a catalyst is something that causes a change (often good).
A category is a group of similar things, whereas a catalyst is a cause of an event.
使用说明
You can use this word for chemistry (real science) or for people and events (metaphorical science). It usually describes something that starts a big process.
常见错误
Learners often think a catalyst is the result of the change, but it is actually the thing that starts the change.
记忆技巧
Think of a 'Cat' jumping on a 'List' of chores to make them happen faster.
词源
From the Greek word 'katalusis', which means to loosen or dissolve.
语法模式
快速测验
The new manager was a _______ for the team's success.
正确！
正确答案是： catalyst
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