一个教师要想上好一堂课,完成教学目的,必须充分了解学生的学习情况。对化学科第一课讲来尤其重要。因为学生们对新的学科有很多的疑问,譬如‘化学研究的是什么,它有什么用处,好不好学,怎么学呢?’。这些问题就是我们在第一堂课所要给他们解决的,并且要通过这样的一些问题的讲解形成学生对化学学习的兴趣和爱好。所以在第一课应该集中地讲解绪言,不应该把第一节‘附加’在内否则会造成学生的思想混乱。学生存在的那些疑问或问题,是可以在教师刚上第一节课的时候看出来的,教师刚上讲台会看到他们的眼光、表情以及每一个细小的动作里,都涵蓄着充份的希望和要求。教师的教态、表情和语言在这样情况下,会给他们很大 A teacher wants to have a good lesson, complete teaching purposes, we must fully understand the learning of students. It is especially important for the first class of chemistry. Because students have a lot of questions about the new subject, such as ’What is the chemical research, what is its use, and whether it is good or not, how to learn?’ These problems are what we should give them in the first class and explain the students’ interest and interest in chemistry learning through the explanations of such problems. Therefore, in the first lesson should focus on the introduction, should not be included in the first section, otherwise it will create student confusion of ideas. Students have those questions or problems that can be seen when the teacher first class, the teacher just came to the podium will see their eyes, facial expressions and every small move, all contain full Hope and demand. Teachers’ teachings, expressions and language will be great for such cases