精选优质文档-倾情为你奉上高一英语语法 一. 句子成分（一）句子成分的定义：构成句子的各个部分叫做句子成分。（二）主语：主语是一个句子所叙述的主体，一般位于句首。但在there be结构、疑问句（当主语不疑问词时）和倒装句中，主语位于谓语、助动词或情态动词后面。We often speak English in class.（代词）To swim in the river is a great pleasure.（不定式）Smoking does harm to health.（动名词）When we are going to have an English test has not been decided.（主语从句）It is necessary to master a foreign language.（三）谓语：谓语说明主语所做的动作或具有的特征和状态。动词在句中作谓语，一般放在主语之后。谓语的构成如下：1、简单谓语：由一个动词或动词短语构成。如：He practices running every morning.2、复
