1. 掌握五大句型 句子主要都是在五大句型的基础上扩展的，总体上句子必须包含至少一个主谓结构（1）主+谓+（状） He smiles. The sun rises in the east.（2）主+系+表 He is an expert in computers.（3）主+谓+宾 I like sports. Mary has finished her work.（4）主+谓+双宾语 Would you buy him a gift? =Would you buy a gift for him?（5）主+谓+宾+宾补 The young couple watched their baby playing on the grassland. Karl Marx made London the base for his revolutionary work.2. 巧用复合句和并列句 并列句由and族，but族和or族等并列连词连接，复合句由各种引导词连接成为状语从句、定语从句和名词性从句。其中状语从句分类最为复杂。（1）并列句的并列连词and
