假設你是紅星中學高三（1）的學生李華，為校刊英語園地寫一篇題為“An Unforgettable Hike”的英文稿件。請根據以下四幅圖的信息，敘述上周五你們學校組織的20公里遠足活動的全過程。
注意:1．文章的開頭已為你寫好。
2．詞數不少於60。
高三英語作文 An Unforgettable Hike 一次難忘的活動（遠足）
An Unforgettable Hike
We took a 20-kilometer hike last Friday, and it has been one of the most unforgettable experiences since high school. _________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
參考範文
We took a 20-kilometer hike last Friday, and it has been one of the most unforgettable experiences since high school.
Early in the morning, we got together and set out on foot. All of us carried backpacks with water and food. At the beginning, we enjoyed the beautiful scenery and had a great time. Gradually we started to sweat a lot. Some of us became out of breath and some fell behind, but we encouraged each other to keep going. We kept at walking and walking. We almost made it to school when one of my classmates fell down. All of us ran up to help her, having no time attend to our tiredness. After another hour, we finally managed to walk back to school. We were so pleased and proud, cheering and hugging each other. We took photos to record the exciting moment.
What an unforgettable experience! It’s more than a hike. It’s a journey of hard work and challenge, in which we’ve learnt to be more determined and strong-minded.