掌握句型是学号英语的基础，以下是小编整理的的六年级三大句型知识点，希望能帮助大家!
祈使句
表示请求、命令、建议、邀请等，谓语动词一律用原型，句子中通常不用主语，句末用惊叹好或者句号，用降调。
★肯定句：动词原型
Come here, please.
Go downstairs, please.
Stand up.
Sit down.
Be quiet.
Be careful.
祈使句中如果有唤语，一定要用逗号隔开，放在句首或者句尾：
Come in, Amy.
Sit down here, Tom.
Mary, give me a book please.
★否定：Don't+动词原型
Don't come here.
Don't sit down.
Don't stand up.
Don't give me it.
let sb. do 让某人做
Let me pass.
Let us have a rest.
Let's have a rest.
反意疑问：
Let's have a walk along the river, shall we?
Let us go out for a drink, will you?
倒装句：
so/neither的倒装
eg: He can swim. So can I.
She didn't go to class. Neither did I.
结构：
so/neither+be+ 主语
so/neither+助动词+ 主语
so/neither+情态动词+ 主语
助动词：
一般现在时: do, does/am, is, are
现在进行时: am, is, are
一般过去时: did
现在完成时: have, has
一般将来时: will, shall
过去进行时: was, were
过去完成时: had
过去将来时: would
感叹句：
1 What +名词+主语+谓语
What a beautiful girl she is!
What tall buildings they are!
2 How +形容词+主语+谓语
How beautiful the girl is!
How tall the buildings are!
? 在口语中，感叹句的主语和谓语常常省略：
What a nice present!省略it is
How disappointed!省略she is或其它可作本句主、谓的词语
六年级三大句型知识点
