假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错词下划一横线，并在该词下面写出修改后的词。
注意：1). 每处错误及其修改均仅限一词；
2). 只允许修改10处，多者（从第11处起）不计分。
Interest is a kind of power that can drive people learn actively and happily. And it also makes learning more effective and efficiently.
I really appreciate the opinion. I begin to be crazy about English when I was a little boy. And I got interested in foreign culture and custom in particular to meet my curiosity. I read English stories, listened to English songs and watched English films on every day, all of that even seemed to be the “meal” of my daily life. As the result, I always did very well in English exams.
In a word, interesting is the key to success. Anyone who are interested in something will devote himself to them.
,则4x与3sin2x的大小关系 。