fifths

简明释义

英[fɪfθs]美[fɪfθs]

n. 第五；五分之几；五等品（fifth 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Or again: about two-fifths the height of Scafell Pike, the highest peak in England.

或者说：大约是英格兰最高山峰斯科费尔峰高度的五分之二。

2.Since nitrogen is four fifths of the air we breathe, they are surprisingly optimistic about raising the temperature on Mars and believe it could be done in hundred years.

由于氮占我们呼吸的空气的五分之四，他们对提高火星的温度持惊人的乐观态度，相信这可以在一百年内完成。

3.Rents rose by three-fifths between 2007 and 2009.

租金在2007至2009之间提高了五分之三。

4.Ueberroth, 47, masterminded a triumph that involved four-fifths of the nations of the globe.

尤伯罗斯，47岁，他成功的使全球五分之四的国家参加奥运会。

5.Four-fifths of the world's fresh water is frozen.

世界五分之四的淡水都在冰冻状态。

6.Robot workers offer more hope to some: two-fifths of all the world's industrial robots are in Japan.

对有些人来说机器人提供了更多希望：世界上五分之二的工业机器人在日本。

7.Four-fifths choose an HMO.

四分之五的人选择HMO。

8.The recipe calls for three-fifths of a cup of sugar.

这个食谱需要三五分之一杯糖。

9.He divided the pizza into fifths so everyone could have a piece.

他把披萨切成五分之一，这样每个人都能有一块。

10.If you take two-fifths of the class, that would be ten students.

如果你选取班级的五分之一，那就是十个学生。

11.She completed four-fifths of her homework before dinner.

她在晚餐前完成了四五分之一的作业。

12.The team scored three-fifths of their total points in the first half.

球队在上半场得到了总分的三五分之一。

作文

In mathematics, the concept of fractions is crucial for understanding how to divide quantities into parts. One common fraction that we often encounter is a fifth, which is represented as 1/5. This means that if you take a whole and divide it into five equal parts, each part is one fifth of the whole. The term fifths refers to the plural form of this fraction, indicating multiple divisions of a whole into five equal segments. For example, if you have a pizza and you cut it into five equal slices, each slice represents one fifth of the pizza. If someone eats two slices, they have consumed two fifths of the pizza, leaving three fifths remaining. Understanding fifths can also help in various real-life scenarios. When cooking, recipes often require specific measurements, and knowing how to convert these measurements into fifths can be quite helpful. For instance, if a recipe calls for 2 cups of flour, and you want to make only a fifth of the recipe, you would need to measure out 2/5 of a cup of flour, which is equivalent to 0.4 cups. This practical application of fifths shows how fractions play a significant role in everyday tasks. In education, teaching children about fifths and other fractions is essential for developing their mathematical skills. Educators often use visual aids, such as pie charts or fraction bars, to illustrate how fifths work. By visually representing a whole divided into five equal parts, students can better grasp the concept of fifths and how they relate to other fractions. For instance, they can see that two fifths is larger than one fifth, but smaller than three fifths. This comparative understanding is vital for more complex mathematical concepts later on. Moreover, fifths are not only limited to mathematics; they also appear in music. In music theory, a fifth refers to the interval between two notes. When musicians talk about perfect fifths, they are referring to a specific distance between pitches that creates a harmonious sound. Understanding musical fifths is important for composers and performers alike, as it forms the basis of many melodies and harmonies. In summary, the term fifths encompasses various meanings across different fields, including mathematics, cooking, education, and music. Whether we are dividing a pizza, measuring ingredients, teaching fractions, or composing music, fifths play an integral role in our understanding of parts and wholes. Mastering the concept of fifths allows us to navigate through these areas with greater ease and confidence, illustrating the importance of fractions in both academic and practical contexts. As we continue to explore the world around us, recognizing the significance of fifths will undoubtedly enhance our problem-solving skills and enrich our experiences.

在数学中，分数的概念对于理解如何将数量划分为部分至关重要。我们经常遇到的一个常见分数是五分之一，表示为1/5。这意味着如果你将一个整体分成五个相等的部分，每个部分就是整体的一个五分之一。术语fifths指的是这个分数的复数形式，表示将一个整体分成五个相等部分的多个分数。例如，如果你有一个比萨饼，并将其切成五片相等的切片，每片代表比萨饼的一个fifth。如果有人吃了两片，他们就吃掉了比萨饼的两个fifths，剩下三个fifths。 理解fifths还可以帮助我们在各种现实生活场景中。当烹饪时，食谱通常需要特定的测量，知道如何将这些测量转换为fifths会非常有帮助。例如，如果一个食谱需要2杯面粉，而你只想做食谱的五分之一，你需要量出2/5杯面粉，相当于0.4杯。这种对fifths的实际应用显示了分数在日常任务中的重要作用。 在教育中，教孩子们关于fifths和其他分数的知识对发展他们的数学技能至关重要。教育工作者通常使用视觉辅助工具，如饼图或分数条，来说明fifths是如何工作的。通过直观地表示一个整体被分成五个相等的部分，学生可以更好地理解fifths的概念以及它们与其他分数的关系。例如，他们可以看到两个fifths大于一个fifth，但小于三个fifths。这种比较理解对于后来的更复杂的数学概念至关重要。 此外，fifths不仅限于数学；它们也出现在音乐中。在音乐理论中，五度指的是两个音符之间的间隔。当音乐家谈论完美的五度时，他们指的是音高之间的特定距离，这种距离产生和谐的声音。理解音乐的fifths对作曲家和演奏者来说都很重要，因为它构成了许多旋律和和声的基础。 总之，术语fifths在不同领域中涵盖了多种含义，包括数学、烹饪、教育和音乐。无论我们是在分比萨饼、测量配料、教授分数还是作曲，fifths在我们对部分和整体的理解中扮演着不可或缺的角色。掌握fifths的概念使我们能够更轻松自信地应对这些领域，说明了分数在学术和实际背景中的重要性。当我们继续探索周围的世界时，认识到fifths的重要性无疑会增强我们的解决问题的能力并丰富我们的经历。