关于四级英语高级句型，综合权威资料整理如下：

一、固定表达类

1. 不用说……：

It goes without saying that [主句]

例：不用说早睡早起是值得的。 It is obvious that [主句]

例：显然，健康才是革命的本钱。

2. 无法……：

There is no way of Ving

例：无法忽视团队合作的重要性。 It is impossible to V.

例：不可能不珍惜眼前的机会。

二、强调句型

It is/was + 被强调部分 + that + 句子其余部分

例：It is my English teacher who taught me to love English.

（强调“my English teacher”）

三、条件状语从句

If + 主句，主将从现：

例：If you study hard, you will pass the exam.

Unless + 主句，主将从现：

例：除非你及时复习，否则无法通过考试。

四、结果状语从句

So...that...：

例：The movie was so interesting that I watched it twice.

Such...that...：

例：This problem is so difficult that we can't solve it right now.

As a result：

例：Due to the heavy traffic, we arrived 30 minutes late.

五、让步状语从句

Although/Though + 主句，主将从现：

例：Although it was raining, we still went for a picnic.

Even if + 主句，主将从现：

例：Even if we fail, we will learn valuable lessons.

六、特殊结构

There is no possibility of Ving：

例：There is no possibility of winning the championship without hard work.

It is out of the question to V.：

例：It is out of the question to ignore the problem.

No one can V./We cannot V.：

例：No one can deny the importance of education.

例：We cannot wait any longer to start the project.

建议结合作文写作练习，注意句型转换（如将主动语态转换为被动语态）和逻辑关联词的使用，可有效提升作文档次。