求翻译：主要原因是作业量大，而且比较难，学生对功课没兴趣，又有点懒，做作业就只是像完成任务一样不认真做，让老师觉得自己做的好而去抄袭是什么意思？

Main reason is the large amount of jobs, and more difficult, students ' homework no interest, and a little lazy, doing the job just as completed tasks do not carefully done, teachers feel they do well to copy