research有研究，调查，探索;等意思，那么你知道research的过去式是什么吗?下面一起来学习一下research的过去式以及research的用法和例句，希望对大家的学习有所帮助!
research的过去式及其它时态
research的过去式:researched
research的复数:researches
research过去分词:researched
research现在分词:researching
research第三人称单数:researches
research的用法和例句
1、He has carried out extensive research into renewable energy sources.
他已经对再生能源进行了广泛研究。
2、a research project/grant/student
研究项目 / 经费；研究生
3、What have their researches shown?
他们的研究证明了什么？
4、Before taking actions, we should consult the state mandatory planning.
我们在行动前, 应先参考国家的指令性计划.
5、His research was at a dead end.
他的研究无法进行下去.
6、It is successful for us to research on the reform of farm tools.
我们对农具改进的研究取得了成功.
7、I've done some research to find out the cheapest way of travelling there.
我查阅读了一番，想找到去那里最省钱的方式。
8、That engineer is big on research.
那个工程师热衷于研究工作.
9、This book has been very well researched.
该书是在搜集了大量资料的基础上写成的。
10、I will earmark this money for your research.
我将为你的研究指拨一笔款项.
