英语六级考试中常见的句式类型及用法如下：

一、固定搭配句式

It is time + 过去分词

表示“该做某事的时候了”

例：It is time the authorities concerned took proper steps to solve the traffic problems.

There is no one but + 动词原形

表示“没有人不……”

例：There is no one but longs to go to college.

be + forced/compelled/obliged + to + 动词原形

表示“不得不……”

例：Since the examination is around the corner, I am compelled to give up doing sports.

It pays to + 动词原形

表示“……是值得的”

例：It pays to invest time in learning new skills.

二、特殊句型结构

强调句型

以it为引导词，被强调部分用that/who/which连接

例：It is only when one is ill that one realizes the value of health.

主语从句

用that/which引导，表示“众所周知”“显然”等

例：It is common knowledge that honesty is the best policy.

状语从句

包括时间、原因、条件、让步、转折等类型

例：

时间：When the man is enjoying the cigarette, the smoke becomes a monster.

原因：Whatever the reason, there are still some problems with student use of computers.

分词短语作定语或状语

例如：Prof. Kang, giving us a lecture on English acquisition, is very knowledgeable.

三、写作常用句型

表达建议

It is advisable that + 动词原形

We should + 动词原形

例：It is advisable that students take more notes in class.

表达原因

owing to / attributable to + 名词/动名词

例：The project failed due to lack of funding.

表达结果

result in / lead to + 结果

例：Poor communication led to misunderstandings.

四、复杂句式示例

主从句结构：

The company, which was founded in 1990, has grown to become a global leader.

并列句结构：

On the one hand, the new policy improves efficiency； on the other hand, it increases costs.

定语从句：

The book, which I borrowed from the library, is very interesting.

这些句型覆盖了六级考试中的常见题型，建议通过真题练习加深理解与运用。