【案例背景】《义务教育英语课程标准》明确指出:教育活动的组织形式应根据需要合理安排,因时、因内容灵活地运用。教师在教学前对教学内容早已吃透,但实际情况常常是瞬息万变的,如果不能根据实际情况及时调整教学方案,很容易产生事倍功半的结果。因此,教师应当机立断,灵活地改变教学方案,会有出乎意料的收获。教师应该帮助所有的学生积极参与英语学习活动,使他们能够从英语活动中享受到乐趣,使这种乐趣得以巩固、保留,并成为 Case Background The English Curriculum Standard for Compulsory Education clearly states that the organizational form of educational activities should be arranged reasonably according to the needs, because of the flexible application of the content. Teachers have thoroughly penetrated the teaching content before the teaching, but the actual situation is often rapidly changing. If the teaching plan can not be adjusted in time according to the actual situation, it is easy to produce less effective results. Therefore, teachers should act promptly and flexibly to change the teaching plan and there will be unexpected gains. Teachers should help all students actively participate in English learning activities so that they can enjoy the fun of English activities, consolidating, preserving, and becoming