我在初二(2)班引导学生划分这句单句成分:“毛主席同三位科学家广泛地谈到地球形成和生物进化……等问题”时,其中班上有不少的同学将“毛主席同三位科学家”误划为主语成分。我认为,出现这个知识错误的关键在于“同”(还有“和”、“与”、“跟”)在句中是连词还是介词,没有弄清楚.要辨别它们在不同的句子中作连词还是作介词,归纳起来可从以下三个方面去判断:(一)“和、同、与、跟”如果在两个名词或 In the first two classes, I guided the students to divide the phrase into sentences: “When Chairman Mao talked with the three scientists extensively about such issues as the formation of the earth and the evolution of biology ...”, many of his classmates named “Mao Chairman with three scientists ”misjudged as the subject matter. In my opinion, the key to this wrong knowledge lies in whether “same” (and “and”, “and”, “followed”) are conjunctions or prepositions in the sentence and are not clear about them, and to distinguish them from each other in different sentences Or prepositions, summed up from the following three aspects to judge: (a) “and, with, with, and” If the two terms or