1、主语动词表语
2、主语动词
3、主语动词宾语
4、主语动词宾语宾语
5、主语动词宾语补语
掌握好这些基本句型，就可以为灵活运用语言打下良好的基础。下面分别讲解这五种句型。
一、主语---动词----表语
在这一句型中，动词是系动词，划线部分为表语。
n is an engineer.(名词做表语)
ualy he became silent.(形容词做表语)
remained standing for a hour.(现在分词做表语)
question remained unsolved.(过去分词做表语)
machine is out of order.(介词短语做表语)
television was on.(副词做表语)
plan is to keep the affair secret.(动词不定式做表语)
job is repairing cars.(动名词做表语)
question is what you want to do.(从句做表语，即：表语从句)
注意：在下面的.句子中，形容词做表语，在表语的后面常常接不定式结构。
I'm happy to meet you.
They are willing to help.