不唯一
Possible version:
Getting up early is a good habit. It is of great importance to our health, our study and our life. First, getting up early helps to keep us fit and strong. We can improve our health by doing morning exercises in the open air. Second, getting up early to read aloud helps us memorize what we have learned in class. Third, getting up early helps to prepare our work of the day. We can have enough time to wash our faces, brush our teeth and do other preparations. Before we go to school we can have our breakfast in no hurry. If we stick to getting up early every day, we will find it very useful for our character-training.