关于英语作文中故事开头的万能句子，综合多个权威来源整理如下：

一、人物引入类

1. I have a friend who... [后接行为描述]

示例：I have a friend who always helps others. [他总是乐于助人]

2. There once was a man who... [完整故事开头]

示例：There once was a man who traveled the world alone. [曾经有一个独自环游世界的人]

二、现象描述类

1. Nowadays, [现象描述]

示例： Nowadays, people are increasingly concerned about environmental protection. [如今，人们越来越关注环境保护]

2. It is widely acknowledged that... [普遍观点]

示例：It is widely acknowledged that exercise is crucial for health. [人们普遍认为锻炼对健康至关重要]

三、问题提出类

1. What makes things worse is that... [转折引出问题]

示例：What makes things worse is that pollution affects not only the environment but also human health. [更糟糕的是，污染不仅影响环境还危害健康]

2. Should we put... above... else？ [价值判断开头]

示例：Should we put education above entertainment else？ [我们是否应该把教育置于娱乐之上？]

四、引用类

1. As the famous quote goes, '... [名言引用]

示例：As the famous quote goes, 'Knowledge is power.' [正如名言所说，知识就是力量]

2. According to a recent study, ... [数据支撑]

示例：According to a recent study, 60% of people prefer online shopping. [根据最新研究，60%的人更喜欢网购]

这些句子可根据作文主题灵活选用，故事类作文建议使用人物引入或现象描述类开头，议论文则更适合问题提出或引用类开头。注意使用时需结合具体语境调整，避免生硬堆砌。