（写作文）请给一些段落结构如first,second,third之类的To begin within additionf

There are some possible reasons for the present situation.(主题句)First,＿＿＿＿＿＿＿＿＿＿＿＿＿＿.(第一点原因)Second,＿＿＿＿＿＿＿＿＿＿＿＿.(第二点原因)Finally,＿＿＿＿＿＿＿＿＿＿＿＿＿.(第三点原因)Asaresult,＿＿＿＿.(主题句的重申或深化)
表递进的next,also,besides,furthmore,moreover,in addition,what is more,for onething,for another,not only but also
表结论的 in conclusion,in short,on the whole,finally,lastly,to sum up,to conclude ,in any event

generally speaking
for the first place