In Chapter one, with a general survey of the study of discourse markers, by comparison, I shall define what discourse markers are and what the features of them.

本文的第一章节回顾了对话语标记语的理论研究，然后对话语标记语进行了下定义，最后指出话语标记语的特征。

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A case in point is the study by Linda Sax at UCLA, who used data from a large national survey of college freshmen to evaluate the effect of single-sex versus coeducational high schools.

加州大学洛杉矶分校的琳达·萨克斯的研究就是一个恰当的例子，她利用了一项全国性的大一新生调查来评估单性别高中和男女混合高中的效果。

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From a survey about their study, only two percent of the children get good results, while ten percent of them are common and eighty-eight percent of them are poor.

根据一项关于他们研究的调查，只有2%的孩子取得好成绩，而10%的孩子是普通的，88%的孩子取得不理想的成绩。

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For the study, the researchers used the two thousand seven National Survey of Children's Health.

VOA: special.2010.05.06

Part of the research study included a survey of 500 business travellers and executives from the US, United Kingdom, Germany, Brazil and China.

BBC: Business travel is big business

The survey involved the largest ever astronomical study of the nearby universe and is considered one of the most important achievements of 20th century astrophysics.

UNESCO: MEDIA SERVICES

In fact, two different sources of data ( a survey of scientists and a study linking agreement to the credibility of the expert) converge on the same fact: 97 to 98 percent of climate scientists are convinced by the evidence for anthropogenic climate change.

FORBES: Climategate-gate: The Dangerous Psychology of Ongoing Climate Change Denial