一、“因为”和“由于” “因为”和“由于”都是表示原因的连词,有时又都是表示原因的介词。 (一)作为连词,“因为”和“由于”都可以用在因果复句的前分句里,表示原因。例如: 1.因为小腿伤口发炎,他掉队了。(王愿坚《七根火柴》) 2.因为这种幼稚的、低级的、庸俗的、不用脑筋的形式主义的方法,在我们党内很流行,所以必须揭破它……(毛泽东《反对党八股》) First, “because ” and “because ” “because ” and “because ” are conjunctions that represent the cause, and sometimes are prepositions that indicate the cause. (A) As a conjunctions, “because ” and “because ” can be used in the front clause of the causal complex, indicating the reason. For example: 1. Because the calf wound inflammation, he left behind. (Wang Yuanjian’s “Seven matches”) 2. Because of this naive, vulgar, vulgar, brainstorm formalism, it is very prevalent in our party and must be exposed ... (Mao Zedong’s “Eighth Party”