仙人掌的英文作文示例：
Cactus
The cactus is a very unique plant. It is known for its ability to survive in harsh environments.
Cacti have thick and spiky stems that help them store water. This feature allows them to withstand long periods of drought. Their spines not only protect them from being eaten by animals but also help reduce water loss by shading the plant.
The shapes and sizes of cacti vary greatly. Some are tall and column-like, while others are short and round. They can have beautiful flowers that bloom under specific conditions.
Cacti are often found in de rts and arid regions. Despite the challenging conditions, they manage to grow and thrive.
In conclusion, the cactus is an amazing plant that has adapted perfectly to survive in extreme circumstances. Its special features make it stand out among other plants.
写作思路：首先点明主题介绍仙人掌；接着描述仙人掌储存水分、自我保护的特点；然后提及仙人掌的形状和花朵；再指出其生长环境；最后总结仙人掌的独特和令人惊叹之处。希望这篇作文能满足您的需求！
