一、观点表达类

两种观点并存

- Some people believe that...

- Others think that...

- There is probably some truth in both sides.

个人观点阐述

- In my opinion/view, ... = To my mind, ... = As far as I am concerned, ...

二、现象描述类

时间对比

- People used to do...

- However, things are quite different today.

普遍现象

- With the development of technology, ...

- Nowadays, ... has become a common phenomenon.

三、建议与看法类

行动建议

- It is essential to... = It is necessary that... = We should...

价值判断

- What's more important, ... or ...？ = The key is to...

四、连接词与过渡类

并列结构

- Neither...nor... = Either...or...

因果关系

- The reason why... is that... = The cause of... is...

五、健康相关类（高频话题）

生活习惯

- A balanced diet and regular exercise are crucial.

- It's easy to maintain a healthy lifestyle with proper sleep.

健康警示

- Smoking is harmful to both physical and mental health.

- Lack of sleep can lead to poor concentration.

这些句子可根据作文主题灵活选用，建议结合具体语境调整表达。写作时注意使用多样化的句式结构，避免重复，同时注意语法准确性。