根据权威信息源，英语高级句型可归纳为以下五类，涵盖强调、条件、比较、结论等核心表达：
一、强调句型
结构：It is/was + 被强调部分 + that/who + 其他部分
示例：It was Tom who broke the window yesterday.（强调主语Tom）
二、条件句型
结构：If I were you, I would... / It is high time that...
示例：If I were you, I would study harder.（如果我是你，我会更努力）
三、比较句型
结构：A is to B what/ as C is to D
示例：Education is to a person what food is to an animal.（教育之于人犹如食物之于动物）
四、结论句型
结构：In conclusion/a word, I believe that...
示例：In conclusion, we should prioritize environmental protection.（总之，我们应该优先保护环境）
五、固定表达句型
示例：
There is no need for sb to do sth.（某人无需做某事）
By doing...， 主语+can...（通过做某事，主语能...）
以上句型在学术写作、演讲及日常交流中均能提升表达的准确性与丰富性。