初中英语中描述外貌的常用句式包括：
基本描述
She has long curly hair.
He is of medium height.
She has short curly hair.
He has long straight hair.
五官描述
She has a pair of bright eyes.
He has a small nose and a big mouth.
Her cheeks are round and rosy.
体型描述
He is really heavy.
She is of medium build.
He is tall and strong.
整体描述
She is beautiful.
He is handsome.
She is charming.
细节描述
He wears a black hat and a black jacket.
Her skin is fair and smooth.
He has a broad smile.
这些句式可以帮助你更准确地描述人物的外貌特征。根据具体的语境和需要，可以选择合适的句式进行表达。