語法總結(jié)：祈使句

祈使句表示請(qǐng)求、命令、建議、邀請(qǐng)等，謂語動(dòng)詞一律用原型，句子中通常不用主語，句末用驚嘆號(hào)或者句號(hào)，用降調(diào)。

肯定句：動(dòng)詞原型

Come here， please.

Go downstairs， please.

Stand up.

Sit down.

Be quiet.

Be careful.

祈使句中如果有喚語，一定要用逗號(hào)隔開，放在句首或者句尾：

Come in， Amy.

Sit down here， Tom.

Mary， give me a book please.

否定：Dont+動(dòng)詞原型

Dont come here.

Dont sit down.

Dont stand up.

Dont give me it.

let sb. do 讓某人做

Let me pass.

Let us have a rest.

Lets have a rest.

反意疑問：

Lets have a walk along the river， shall we？

Let us go out for a drink， will you？endprint