日記是人們對日常生活的記錄，用來記述自己一天生活的所見、所聞、所問、所思、所感。英文日記通常由兩部分構成，即書端和正文，其格式與中文相同，下面就是英文日記各部分的書寫格式示意圖： 那麼，用英語寫日記應注意哪些方面的問題呢?
1. 注意日期、星期和天氣的書寫位置。
日期和星期要寫在正文的左上角，其順序多是“星期 + 月、日、年”，也有把星期放在後面的，如“ 2014 年 11 月 22 日，星期一”可寫為“ Monday November 22, 2014 或 November 22, 2014 Monday ”。天氣情況應寫在正文的右上角，如： Fine, Rainy, Cloudy, Windy 等。
2. 關於標題的書寫。
在日期和天氣的下一行中間可以寫上日記小標題，也可以不寫標題。
3. 關於正文的書寫。
正文是關於一天生活的記載，也是日記的.主題。在書寫正文時要做到：
1 )要選擇當天感受最深刻、最有意義的事件來描述，不要寫成簡單的流水帳;
2 )日記的內容多是親身經歷和耳聞目睹的事情，所以要用第一人稱來寫;
3 )日記多是在當天晚上來記述當天發生過的事情，因為動詞時態常使用過去時，但使用時必須靈活掌握，如景物描寫、議論某事、對話引語等要使用現在時態;
4 )日記應以時間發生的先後順序來展開，並且要簡明扼要，條理清楚，寫出真實感。
[例文]
Sunday May 21,2014 Sunny Going on a Picnic
Today was Sunday. The weather was fine and warm. The sky was very clear and blue. My classmates and I were very happy, because we went out for a picnic at Nanshan Hill. We went to Nanshan Hill by bike with fruits, eggs, meat, vegetables, knives and some other things.
About one and a half hours later, we came to a nice place at the foot of the hill. There were many beautiful flowers and green trees. Birds sang their sweet songs. How pleased we were! Then we were busy with the picnic. Some of us were getting water, some were cutting the meat and vegetables and cook, others were sitting on the grass and waiting for nice lunch. At about 13 o'clock, our lunch was ready. We all sat around on the green grass, singing, talking, eating and drinking. At about 16:00 we began packing for our return. What a nice time we were having!
小作者能用準確、地道的語言，簡練的語句非常生動地描寫出了野炊的場面。這篇文章條理清楚，尤其是“ some „ some „ , others „”句型，以及 singing, eating 等現在分詞作伴隨狀語的運用，使這篇日記增色不少。本文結尾使用了一個感嘆句，更加反映出小作者對這次野炊的真實情感。