英语作文植物5句话

英文回答：

Plants are essential for life on Earth. They provide us with food, oxygen, and shelter. They also help to clean the air and water. In short, plants are vital to our survival.

Plants are composed of a variety of cells. These cells contain chlorophyll, a green pigment that allows plants to absorb energy from the sun. This energy is used to convert carbon dioxide and water into glucose, a sugar that plants use for energy.

Plants have a variety of different structures. These structures include roots, stems, leaves, and flowers. Each structure has a specific function. For example, roots absorb water and nutrients from the soil. Stems transport water and nutrients from the roots to the leaves. Leaves absorb sunlight and use it to convert carbon dioxide and water into glucose. Flowers produce seeds, which can

germinate and grow into new plants.

Plants play an important role in the food chain. They are eaten by animals, which are in turn eaten by other animals. Plants also provide food for humans. In fact, about 90% of the food that humans eat comes from plants.

Plants also have a number of medicinal uses. For example, willow bark can be used to relieve pain. Aloe vera can be used to treat burns. Ginseng can be used to boost the immune system.

中文回答：

植物是地球上生命不可或缺的一部分。它们为我们提供食物、氧气和住所。它们还有助于净化空气和水。总之，植物对我们的生存至关重要。

植物由各种细胞组成。这些细胞含有叶绿素，这是一种绿色色素，使植物能够吸收太阳能。这种能量用于将二氧化碳和水转化为葡萄糖，一种植物用于能量的糖。

植物有各种不同的结构。这些结构包括根、茎、叶和花。每个结构都有特定的功能。例如，根从土壤中吸收水分和养分。茎将水和养分从根部输送到叶部。叶子吸收阳光并利用它将二氧化碳和水转化为葡萄糖。花朵产生种子，种子可以发芽并长成新植物。

植物在食物链中发挥着重要作用。它们被动物吃掉，而动物又被其他动物吃掉。植物也为人类提供食物。事实上，人类食用的食物约有 90% 来自植物。

植物还具有许多药用价值。例如，柳树皮可用于缓解疼痛。芦荟可用于治疗烧伤。人参可用于增强免疫力。