1）This paper deals with……
    2）This article focuses on the topics of （that，having，etc）……
    3）This eassy presents knowledge that……
    4）This thesis discusses……
    5）This thesis analyzes……
    6）This paper provides an overview of……
    7）This paper elaborates on ……
    8）This article gives an overview of……
    9）This article compares……and summarizes key findings.
    10）This paper includes discussions concerning……
    11）This paper presents uptodate information on……
    12）This article covers the role of chemicals in……
    13）This paper addresses important topics including……
    14）This paper touches upon……
    15）This paper strongly emphasizes……
    16）This eassy represents the preceedings of ……
    17）This article not only describes……but also suggests……
    18）This paper considers……
    19）This paper provides a method of ……
    20）This paper introduces an applicable procedure to analyze……
    21）This paper offers the latest information regarding……
    22）This paper is devoted to examining the role of……
    23）This article explores……
    24）This paper expresses views on……