重点在于从句中是否缺少成分：如果从句中缺少成分，那么应该就是定语从句如果从句中不缺少成分，则是同位语从句。例子1中，从句中动词value和expect是及物动词，缺少宾语，因此that引导的从句应属于定语从句。例子2中，从句中不缺少任何成分，因此that引导的从句应属于同位语从句。
2. 动词+从属连词+句子=宾语从句/表语从句
例子3：I think that the kinds of things that women are exposed to tend to be in more of a chronic or repeated nature.(2008年Text1)
从句类型：宾语从句
辨别方式：think(动词)+从属连词(that)+the kinds of things that women are exposed to tend to be in more of a chronic or repeated nature(句子)
译文：我认为那种妇女面对的事情往往更具有长期性和反复性。
例子4：A report consistently brought back by visitors to the US is how friendly, courteous, and helpful most Americans were to them.
从句类型：定语从句
辨别方式：is(动词)+how(从属连词)+(how) friendly, courteous, and helpful most Americans were to them (句子)
译文：由去美国的游客不断地带来的一个报告是大多数美国人对他们是多么的友好、礼貌和热心。
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