As is planned, everything goes well.

正如所计划的那样，一切进展顺利。

The island is such a good place as many people hope to travel to some day.

这个岛是一个很多人希望有一天能去旅行的好地方。

As is known to all, regular study habits help students perform better in school.

众所周知，规律的学习习惯有助于学生在学校取得更好的成绩。

As is often the case, he forgot to bring his pen with him.

他忘了带笔，这是常事。

As we all know, a journey of a thousand miles begins with a single step.

众所周知，千里之行始于足下。

As is well known to us, participating in extracurricular activities can enhance students' social skills.

众所周知，参加课外活动可以提升学生的社交能力。

As is known to the United States, Mark Twain is a great American writer.

美国人都知道，马克·吐温是一位伟大的美国作家。

Taiwan is, as you know, an inseparable part of China.

你知道，台湾是中国不可分割的一部分。

这些例子展示了as引导的句型在句子中的不同用法，包括引导定语从句、时间状语从句、原因状语从句和非限制性定语从句等。希望这些例子能帮助你更好地理解和运用as引导的句型。