“显然”是某些教师和学生的口头禅,经常在解答问题时,说“显然”怎么样,“显然”不怎么样……,然而有些问题虽说显然,其实不显然,学生甚至茫然.在“显然”的掩盖下,不利于学生思维进入角色和状态,不利于创设问题的情境,不利于培养学生的科学精神———大胆假设,小心求解.甚至 “Obviously” is a mantra of some teachers and students who often say “apparently” when answering questions, “apparently” not very good ... However, while some of the questions are obviously not obvious, the students are even at a loss. In “ Obviously, ”it is not conducive to creating students ’scientific spirit under the cover of“ masking ”, which is not conducive to students’ thinking entering the role and state, and is not conducive to creating problems. They even make bold assumptions and solve them with caution.