九、书面表达。
假如你的朋友李华打算在本周末去自然公园的山里徒步。请你根据思维导图的提示，为他写几条行前须知。不少于5句话。
参考词语:weekend, nature park。

Dear Li Hua,
You plan to go hiking in the mountains of the nature park this weekend. Here are some notes for you before the trip.
First, you need to check the weather report first, so you can know what clothes to take.
Second, you should prepare your hiking shoes and sunglasses, they are very useful for your mountain trip.
Third, remember to take enough water and some food with you, you will feel hungry and tired after walking for a long time.
At last, don't forget to tell your parents about this trip, they will feel safe if they know where you go.
Wish you have a happy hiking!

这是一篇出行提示类书面表达，写作时需要覆盖思维导图的全部提示要点，用上指定参考词weekend和nature park，语句要简单通顺符合五年级英语的表达难度，总句数不少于5句，清晰告知李华徒步前的各项准备注意事项即可。