8)A comparison between these changes may be a good way to learn more about……(可用于对比说明文)

　　9)More insight/inspiration/truth/thought can be deduced from these changes.(可用于知识性说明文)

　　10)This situation/phenomenon/trend/tendency is rather distressing/disturb ing/depressing/heart-rending， for the opposite of it is just in line with our wishes/just what is to be expected.(可用于分析建议、批驳分析和原因分析等议论文)

　　11)In that case， however， I prefer to……rather than……(用于理由陈述、比较分析、批驳分析类议论文和知识性说明文)

　　12)This is what we are unwilling to see， so some way must be found out to……(可用于分析建议、对比分析、批驳分析类议论文和知识性说明文)

　　13)Fortunately， however， more and more people come/begin to realize that……(可用于分析建议、对比分析和各抒己见类议论文)

　　14)Unfortunately， things have worsened/come/developed to the point where……(用于分析建议、原因分析、批驳分析、各抒己见类议论文和知识性说明文)

　　15)But have you ever stopped to think what/how/why……?(可用于除理由陈述之外的各种议论文和知识性说明文)

　　16)If we take a further/colder/closer look at this problem/matter， however， more secrets/grounds/chances/ways will be found out for……

　　(e.g.……putting it right/taking action against it/improving it)(可用于分析建议、对比分析、原因分析等议论文和知识性说明文)

　　17)But this(dis)agreement ceases to exist as soon as……(用于各抒己见、批驳分析、对比分析等议论文和对比说明文)

　　18)A further/deeper analysis/study/exposure of……/A further comparison between……can reveal more about……/can show us more ways to……(how to……)可用于分析建议、原因分析、对比分析、批驳分析等议论文和对比说明文及知识性说明文)