4、everon the contrary, after all等连接的并列句,具有平行选择关系的并列句,如由both…and…,as well as,as well,neither…nor,either…or…,not only…but also…等连接的并列句。第三类是一些特殊句型,如使用强调句、倒装句、含有with复合结构的句子、there be开头的句子、以形式主语it开头的句子等。1如何在写作中避免句式单一Rewritethesentences1.Theyarrivedattheschool.Theyfeltthehappyatmosphere.2.Iwillbegivenanother