My cousin Li Ming is a senior three student, who devoted himself to his lessons every day. Last Saturday, as usual, he went to several class. In the evening, he continued to study at home until deeply into the night. He was too sleepy and tired that he couldn’t work effectively. In Sunday morning, he was about to do his lessons while his father came up and advised him to take a break. Soon they came up a good idea. They decided to go cycling in the countryside. Li Ming enjoyed himself peting and chatting with his father and felt relaxing in the open air. On Monday, Li Ming was energetic and active in class. He spent a whole day in the country, and Li Ming said what he had done was worth.devoted改为devotes,
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(答案→)devoted改为devotes,
解析：本题考查较为细致，要求考生要特别耐心答题中注意句子中人称和数是否一致，时态是否一致。各种词性之间的区别以及一些常用句型，固定短语的应用。一般的这类题型不会出现太复杂的单词和句子，这类题型考察基础知识较多。平时应注重积累，熟记一些句型及惯用结构。修改前先细读短文，标出出错的位置，改完以后还得细读短文，看看改过后的短文是否语意通顺，符合逻辑。
【小题1】devoted改为devotes, 本文的基本时态是一般现在时，故使用devotes.
【小题2】class改为classes, 前面有形容词several修饰，后面使用可数名词的复数形式。
【小题3】deeply改为deep, deep指具体意义的深入；deeply指抽象意义上的深入。本句中的deep into night指到深夜。
【小题4】too改为so, 固定句式so…that…如此…以至于….；too不能用于这样的结构。
【小题5】 In改为On, 具体到某一天的早晨使用介词on。
【小题6】while改为when, 固定句式be about to do sth when….正要做某事，在这时…。这里的when是一个并列连词，表示“在这时…”
【小题7】.came up改为came up with, 动词短语e up with想出，提出；指他们想出了一个好主意。
【小题8】relaxing改为relaxed, 本句的主语是人，故使用过去分词转换的形容词relaxed来修饰人。
【小题9】and改为but, 他在乡下度过了一天，但是他认为这是值得的。上下文之间存在着转折关系，故使用but。
【小题10】worth后加it或改为worthwhile be worth后面可以接宾语。指这样做是值得的。也可以单独使用worthwhile，做表语。