allow动词1）允许、许可。

观察以下例句，总结出allow的常用句式

My parents allowed me to have a picnic in the park.

Teachers don’t allow eating in class.

【搭配】

allow sb. to do sth. 允许某人做某事

allow (doing) sth. 允许(做)某事

观察下列几个例句，归纳allow的其他用法。

They don’t allow us to park here.

We are not allowed to park here.

They don’t allow smoking in the restaurant.

Smoking are not allowed in the restaurant.

知识讲解 be allowed 被允许

2）allow 允许…进入（或停留）

【小试牛刀】

You can’t wear shoes inside this place. It_____.

A. doesn’t allow B. isn’t allowed

C. hasn’t allowed D. wasn’t allowed

解析：选B