四、Choose and write. 请在上面这些自然公园中，选择一个你喜欢的，并帮该公园写一封欢迎游客的信。
Dear visitors,
Welcome to our ... park. There is / are ...
The weather here is usually good, but ...
Have a great time at the park, but please stay safe!
Yours,

Dear visitors,
Welcome to our Green Nature Park. There is a big clean lake in the park, and there are many green trees and pretty flowers everywhere. You can also see cute little squirrels and birds here.
The weather here is usually good, but it may get windy and cool in the evening, so you'd better take a thin coat with you.
Have a great time at the park, but please stay safe! Don't walk into the deep forest alone and don't swim in the lake.
Yours,
Green Nature Park Office

【分析】这是一道英语写作题，要求按照给定的书信框架完成自然公园的欢迎信。解题思路：1.先选定一个自然公园名称（如Green Nature Park）；2.按照信件结构依次填写：开头欢迎语+公园名，用There is/are句型介绍公园的景物，描述天气的特点及注意事项，最后给出安全提示并落款，确保符合书信格式和题目要求。
【解析】根据题目给出的书信模板，结合示例内容，选择Green Nature Park作为写作对象：①开头写欢迎语及公园名称；②用There is/are句型介绍公园的具体景物（大湖、绿树、花、松鼠、鸟）；③说明天气情况（通常好，但晚上多风凉爽，需带薄外套）；④给出安全提示（勿单独进深林、勿在湖里游泳）；⑤落款为公园办公室名称，完成信件。
【答案】Dear visitors,
Welcome to our Green Nature Park. There is a big clean lake in the park, and there are many green trees and pretty flowers everywhere. You can also see cute little squirrels and birds here.
The weather here is usually good, but it may get windy and cool in the evening, so you'd better take a thin coat with you.
Have a great time at the park, but please stay safe! Don't walk into the deep forest alone and don't swim in the lake.
Yours,
Green Nature Park Office
【知识点】英语书信写作；There be句型；描述自然事物与天气
【点评】本题考查学生对英语书信格式的掌握，以及运用There be句型、描述自然景物和天气的能力，题目提供了清晰的写作框架，降低了写作难度，适合基础阶段学生练习。
【难度系数】0.3