关于六年级英语仿写句子的练习，以下是综合多个权威来源整理的典型例句及改写要求，供参考：

一、基础句型仿写

陈述句改写

- 原句：Tom is taller than Bob.

- 改写：Tom is taller than Bob.

一般疑问句

- 原句：Mike runs as fast as Ben.

- 改写：Does Mike run as fast as Ben？

否定句

- 原句：We all ate hamburgers and chips.

- 改写：We did not （didn't） eat hamburgers and chips.

二、特殊句型转换

现在完成时

- 原句：He flew a kite yesterday.

- 改写：He has flown a kite.

过去进行时

- 原句：They were playing soccer at the park.

- 改写：They were playing soccer at the park last Sunday.

条件句

- 原句：If it rains, we will cancel the picnic.

- 改写：We will cancel the picnic if it rains.

三、同义句转换

形容词替换

- 原句：She is very smart.

- 改写：She is extremely intelligent.

动词替换

- 原句：He likes reading books.

- 改写：He enjoys perusing literature.

四、综合应用练习

改写句子

- 原句：Turn right at the third crossing.

- 改写：Do not turn right at the third crossing.

根据提示造句

- 提示：I like autumn best.

- 仿写：He loves winter the most.

建议结合教材配套练习或英语学习网站（如道客巴巴、豆丁网）进行系统训练，注意区分一般现在时、过去时等时态变化，以及疑问句、否定句的语法结构。