同学你好，该知识点来自沪江网校《新概念英语第二册【超值现金奖励班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学好：
Breakfast is one of the most important meals in our daily lives.
【daily life 更常见】

In order to have a further and deeper discussion, we divided them into two groups according to the results: group A-the students who don’t have breakfast, group B-the students who have breakfast regularly.
【further 是比较级，结合语境，deep 也应该用比较级；建议further 和deeper 取一个用即可，因为它们含义非常接近。results 后面可以用冒号】

3.Fastidious about the foods for breakfast
【of 通常表示所属关系居多；这里用for 更恰当一些，“早餐吃的食物”】
Some students are not willing to eat breakfast prepared at the school canteen or by their parents.  They are fastidious about what they eat.
【这里用过去分词可以更简洁，句意适当扩展了一些（如果只是家长给孩子准备早餐的话，多数还是会准备孩子爱吃的食物的，为了让论据更充分，这里加了“学校餐厅”；另外留意断句】

The listed them as below.
【这里讲不通】

1. Getting essential nutrition to be energetic
【这里是列举优点，一件件“… 事”，处理为名词性短语更恰当；absorb 是动词，“吸收”，强调这个动作，建议换成getting “获取”更符合语境】
They understand that breakfast contains the essential nutrition that is needed for them to grow.
【描述人们的日常认知，像上面列举叙述的那部分一样，用现在的时态；nutrition 是不可数名词，be 用is】
And having breakfast makes them feel energetic in the morning.  
【动名词做主语，相当于第三人称单数；makes 后面可以参考them full of energy 这样的表达，避免重复出现同样的单词（energetic）】
3.Staying healthy
【同第一处的说明，处理为动名词】
They feel they are healthy and are less likely to feel ill.
【这里是否想用fall ill，“生病”？；they are healthy 可以替换为they are in excellent condition，供参考】

另外一点：
第一部分举例时，每一条后面都加了句号；第二部分则没有；建议保持一致。

文章结构完整；
词汇方面建议可以尝试多使用一些词组，固定表达等；
语法方面注意主谓一致等细节。

祝学习愉快！