research的过去式是什么

1. 研究，调查，探究，探讨，考察
2. 探索，仔细搜索，探寻
3. 探测
4. 追究
5. 学术
6. 调研工作，研究工作
7. 探索精神
8. 研究能力

1. 调查，研究，探讨，探究
2. 作（学术）研究， 从事…的研究
3. 追究
4. 分析

1. systematic investigation to establish facts
2. a search for knowledge;

   "their pottery deserves more research than it has received"
   

1. attempt to find out in a systematically and scientific manner;

   "The student researched the history of that word"
   

2. inquire into;

   "the students had to research the history of the Second World War for their history project"
   "He searched for information on his relatives on the web"
   "Scientists are exploring the nature of consciousness"
   

1. 调查,研究：这和孩子们在学校的学习方式是非常不同的. 在学校里,他们被要求(require)掌握(master)一堆老师传授的知识(knowledge). 孩子们上网是受到兴趣或友谊的激励. 根据(according to)调查研究(research),有关人员得出以下几个明确的(specific)发现:

research into (v.+prep.)

就…研究 do research into (a problem, etc.)
research into sth

They researched into the causes of the disease.

他们研究这病的起因。

He is researching into the reading problems of young school children.

他正在研究小学生的阅读问题。

Scientists have spent years researching into the effects of certain chemicals on the human brain, and still have left many questions unanswered.

科学家花了多年时间来研究某些化学物质对人脑的影响,但仍有很多问题得不到解答。

research on (v.+prep.)

研究; 探讨… do research on (a problem, etc.); discuss sth
research on sth

It is successful of us to research on the reform of farm tools.

我们对农具改革的研究取得了成功。

They researched on the effects of cigarette smoking.

他们探讨了吸烟的后果。

• He..despised Tom's researches into the subject.

  出自：B. Pym

• A team..has researched the phenomenon of 'jet lag'.

  出自：Times

research in, research into, research on

这3者意思稍有不同:research in着重指对…学科的研究; research into指更深入地研究以弄个水落石出; research on着重指对特定问题的研究。

research, examination

这两个词都有“调查”的意思。其区别在于:examination指对人或物仔细查验以获得实际情况,而research则指对实际情况或第一手资料的研究或调查以揭示新的知识。例如:

You may conduct your research for the term paper in the library.你可以在图书馆里为写学期论文进行研究工作。

It will be found upon examination that someone must have made a mistake.一经调查,便会发现有人犯了错误。

下列三句的意思相同:

They're researching in medieval history.

They're researching into medieval history.

They're researching on medieval history.

他们正在研究中世纪历史。

inquiry，investigation，research，survey

这些名词均有“调查”之意。

inquiry普通常用词，指正式调查，也指一般的打听或查询。

investigation一般指有系统的调查以得到希望发现或需要知道的事。

research指科学工作者等为揭示自然规律或获取某个领域的新知识而进行长时间的调查研究。

survey多指为写书面报告而进行的民意测验或调查。