[解析]
(1)D总结大意题.根据文章内容Why is it that some people seem to learn several languages without any effort,while for others learning just one foreign language is neither enjoyable nor successful?What makes learning a new language so easy for some and so difficult for others.,不同的人学习外语时的努力程度是不一样的,有些好不费力而有些却非常努力;再结合选项,可知本文主要讲述了人们学外语的几种方法.故选:D.
(2)C推理判断题.根据文章We each have our own preferred way of learning as a result of our cultural and educational backgrounds and our personalities.专家说,我们不同的学习方式的形成主要受文化、教育背景、以及个性的影响,结合选项,符合A\B\D的描述,故选C,没有提及
(3)C细节理解题.根据倒数第三段"They love studying grammar rules and like to focus on details,"可知分析学习着者们喜欢专注于细节学习和研究.结合选项,故选:C.