oxygen

简明释义

英[ˈɒksɪdʒən]美[ˈɑːksɪdʒən]

n. 氧，氧气

英英释义

单词用法

同义词

反义词

例句

1.Fish take in oxygen through their gills.

鱼用鳃吸取氧气。

2.If headaches only occur at night, lack of fresh air and oxygen is often the cause.

如果头痛只发生在晚上，缺少新鲜空气和氧气常常是其原因。

3.Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.

两个氢原子和一个氧原子结合组成一个水分子。

4.A molecule of water consists of two atoms of hydrogen and one atom of oxygen.

水分子由两个氢原子和一个氧原子构成。

5.A stroke can disrupt the supply of oxygen to the brain.

中风可导致大脑供氧中断。

6.Several chemicals have displaced the oxygen.

有几种化学物质取代了氧气。

7.Burning fossil fuels uses oxygen and produces carbon dioxide.

燃烧化石燃料消耗氧气并产生二氧化碳。

8.Plants absorb oxygen.

植物吸收氧气。

9.Diving at great depths requires special tanks filled with oxygen.

在深海潜水需要特殊的气瓶，里面装有氧气。

10.Plants produce oxygen through the process of photosynthesis.

植物通过光合作用产生氧气。

11.Humans need oxygen to survive.

人类需要氧气才能生存。

12.During exercise, your body consumes more oxygen.

在运动过程中，你的身体消耗更多的氧气。

13.The oxygen levels in the water are crucial for fish survival.

水中的氧气水平对鱼的生存至关重要。

作文

Oxygen is one of the most essential elements for life on Earth. It is a colorless, odorless gas that makes up about 21% of the Earth's atmosphere. Without oxygen (氧气), many forms of life would not be able to survive. From the smallest microorganisms to the largest mammals, all organisms require oxygen (氧气) to carry out cellular respiration, a process that converts food into energy.The importance of oxygen (氧气) extends beyond just its role in supporting life. It is also crucial for various chemical reactions and processes. For example, oxygen (氧气) is a key player in combustion, which is the reaction that allows us to use fuels for energy. Whether it’s burning fossil fuels for electricity or using natural gas for cooking, oxygen (氧气) is necessary for these processes to occur.In addition to its role in supporting life and combustion, oxygen (氧气) is vital for maintaining the balance of ecosystems. Plants produce oxygen (氧气) through photosynthesis, a process where they convert sunlight, carbon dioxide, and water into glucose and oxygen (氧气). This not only provides energy for the plants themselves but also releases oxygen (氧气) into the atmosphere, which is then used by animals and humans.The relationship between plants and animals highlights the interconnectedness of life on Earth. Animals, including humans, inhale oxygen (氧气) and exhale carbon dioxide, which plants need to perform photosynthesis. This cycle illustrates how essential oxygen (氧气) is for sustaining life and maintaining ecological balance.Moreover, the significance of oxygen (氧气) goes beyond just biological functions. It plays a critical role in various industrial applications. For instance, oxygen (氧气) is used in medical settings to help patients with respiratory issues. It is also utilized in metal cutting and welding processes, where high temperatures are required. The versatility of oxygen (氧气) makes it an invaluable resource in numerous fields.However, despite its abundance, oxygen (氧气) can also be a double-edged sword. While it is essential for life, it can also contribute to oxidative stress, leading to cellular damage. This is particularly relevant in the context of aging and various diseases. Antioxidants are substances that can neutralize the harmful effects of excess oxygen (氧气) in the body, highlighting the need for balance in our consumption of this vital element.In conclusion, oxygen (氧气) is a fundamental component of life on Earth. Its role in respiration, combustion, and ecological balance cannot be overstated. As we continue to study and understand the various functions and implications of oxygen (氧气), it becomes increasingly clear that preserving our environment and ensuring the availability of this essential gas is crucial for the future of all living organisms. We must recognize the importance of oxygen (氧气) not only for our survival but also for the health of our planet.

氧气是地球上生命最基本的元素之一。它是一种无色、无味的气体，占地球大气的约21%。没有氧气（氧气），许多生命形式将无法生存。从最小的微生物到最大的哺乳动物，所有生物都需要氧气（氧气）进行细胞呼吸，这是将食物转化为能量的过程。氧气（氧气）的重要性不仅在于它支持生命的作用。它对各种化学反应和过程也至关重要。例如，氧气（氧气）是燃烧的关键参与者，燃烧是使我们能够使用燃料获取能量的反应。无论是燃烧化石燃料发电，还是使用天然气烹饪，氧气（氧气）都是这些过程发生所必需的。除了在支持生命和燃烧中的作用外，氧气（氧气）对于维持生态系统的平衡也至关重要。植物通过光合作用产生氧气（氧气），这是一个将阳光、二氧化碳和水转化为葡萄糖和氧气（氧气）的过程。这不仅为植物本身提供了能量，还向大气中释放了氧气（氧气），然后动物和人类利用这些氧气（氧气）。植物和动物之间的关系突显了地球上生命的相互联系。动物，包括人类，吸入氧气（氧气），并呼出二氧化碳，而植物则需要二氧化碳进行光合作用。这个循环说明了氧气（氧气）对维持生命和保持生态平衡的重要性。此外，氧气（氧气）的重要性超出了生物功能。它在各种工业应用中发挥着关键作用。例如，在医疗环境中，氧气（氧气）被用于帮助有呼吸问题的患者。它还用于金属切割和焊接过程中，这些过程需要高温。氧气（氧气）的多功能性使其在众多领域成为一种宝贵的资源。然而，尽管氧气（氧气）丰富，但它也可能是双刃剑。虽然它对生命至关重要，但它也可能导致氧化应激，从而导致细胞损伤。这在衰老和各种疾病的背景下尤为相关。抗氧化剂是可以中和体内过量氧气（氧气）有害影响的物质，强调了我们对这种重要元素消费的平衡需求。总之，氧气（氧气）是地球上生命的基本组成部分。它在呼吸、燃烧和生态平衡中的作用不容小觑。随着我们继续研究和理解氧气（氧气）的各种功能和影响，越来越清楚的是，保护我们的环境并确保这种基本气体的可用性对所有生物的未来至关重要。我们必须认识到氧气（氧气）对我们生存以及对我们星球健康的重要性。