题目内容
10．Diana made great success in her research because she put her effort into it．（改为简单句）Diana made great success in her researchbeacause of her effort．
分析 戴安娜在她的研究上取得成功因为她把所有努力全放在上面．
戴安娜在她的研究上取得成功因为她的努力．
解答 答案：beacause of．原句是because所引导的原因状语从句，可以换成because of短语表原因，of是介词，后接名词和动词ing，effort在这是名词，故答案是because of．
点评 本题考查了复合句和简单句的有关知识，做题时应注意正确区分简单句以及复合句，以及它们相互转化的方法．
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