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  • 选择合适的重量或容量单位

    lesson content

    Jeffrey works part-time at the butcher shop. Today he is labeling single portions of steak and bottling the store's special barbeque sauce. Each item must be measured accurately in order to be priced correctly. Which unit of measurement should Jeffery use to label the steaks and the bottles of barbecue sauce?
    ::Jeffrey在屠宰场兼职工作。今天,他给牛排上单部分的标签,并装瓶该店的特殊烧烤酱。每件食品都必须精确测量,以正确定价。杰弗里应该使用哪一单位测量来给牛排和烧烤酱瓶贴标签?

    In this concept, you will learn how to choose the best unit of weight or measure.
    ::在这个概念中,你会学会如何选择最好的重量单位或计量单位。

    Selecting the Appropriate Weight or Capacity Units
    ::选择适当的重量单位或能力单位

    Choosing the correct units can make all the difference for a measurement. You would not measure how tall you are in miles. Neither would you measure  length  of a football field in  inches . The same idea applies for weight and volume. If you were making a pot of soup, it could be pretty complicated to measure the amount of liquid in  ounces . Think of how challenging that would be as you are measuring. To get an idea of the size of the units of weight and volume, take a look at the table below.
    ::选择正确的单位可以对测量做出所有区别。 您不会测量自己在英里上的体位。 您也不会测量足球场的长度。 同样的理念也适用于重量和体积。 如果您正在做汤, 测量盎司中的液体数量可能非常复杂。 想想测量时的难度。 要了解重量和体积单位的大小, 请看看下面的表格 。

    lesson content

    This table is useful as a reference for many of the different ways to measure weight and  capacity . Think about what you are measuring before you choose a unit. Use units of weight to find how heavy an object is. Use units of volume to find how much space that object takes up. Generally, the size of the object you are measuring can give you a clue as to which unit to use.
    ::此表格对于测量重量和容量的许多不同方法非常有用。 在选择一个单位之前, 请先想一想您正在测量什么。 使用重量单位来查找一个物体有多重。 使用体积单位来查找该物体占用多少空间。 一般来说, 您正在测量的物体的大小可以为您提供使用哪个单位的线索 。

    Which unit of measurment would you use to weigh a large dog?
    ::你用哪个体位来称一只大狗的重量?

    There are three units of weight in the table-- ounce, pound, and  ton . Think about which unit would work best for this example.
    ::表格中有三个重量单位 -- -- 盎司、磅和吨。想想哪个单位最适合这个例子。

    The ounce is too small of a unit. A large dog would weigh several hundred ounces. The ton is too large of a unit. The pound would be the best unit to measure the weight of a large dog.
    ::盎司太小了。 大狗的重量会达到几百盎司。 吨的重量太大。 磅是衡量大狗重量的最佳单位。

    Examples
    ::实例

    Example 1
    ::例1

    Earlier, you were given a problem about Jeffrey at the butcher shop.
    ::早些时候,你在屠夫店 遇到Jeffrey的问题

    Jeffrey has to label the steak packages and bottles of barbeque sauce. He has to decide which unit would work best to accurately label each item.
    ::Jeffrey得给牛排包和烧烤酱贴上标签

    First, consider the packages of steak. Most of the steaks are less than a pound. Therefore, Jeffrey should use ounces to label the packages of steak.
    ::首先,考虑牛排包。大部分牛排不足一磅。因此,杰弗里应该用盎司来给牛排包贴标签。

    Then, consider the bottles of barbecue sauce. The bottles are about the size of a water bottle. He has several options he can use—  fluid ounce ,  cup , or  pint . The most accurate unit would be the smallest unit. Therefore, Jeffrey should use fluid ounces to label the bottles of barbecue sauce.
    ::想想烤肉酱的瓶子。瓶子与水瓶的大小差不多。他有几种选择 — 液盎司、杯或品脱。最准确的单位是最小的单位。因此,杰弗里应该用液盎司给烧烤酱瓶贴标签。

    Example 2
    ::例2

    Choose the best unit of measure: if Darcy is filling up her swimming pool, which unit of capacity would she use to measure the amount of water needed?
    ::选择最佳测量单位: 如果达西正在填充她的游泳池, 她用哪个能力单位来测量所需的水量?

    Think about what is being measured. A swimming pool requires a large amount of water. Darcy would use gallons, the largest unit for capacity.
    ::想想正在测量什么。游泳池需要大量的水。达西会使用加仑,这是最大的容量单位。

    Example 3
    ::例3

    Choose the best unit of measure: the milk in a baby bottle.
    ::选择最好的计量单位:婴儿瓶中的牛奶。

    Measure the capacity of a baby bottle using fluid ounces.
    ::使用液体盎司测量婴儿瓶容量。

    Example 4
    ::例4

    Choose the best unit of measure: a bundle of wood.
    ::选择最佳度量单位:一捆木柴。

    Measure the weight of a bundle of wood using  pounds .
    ::用磅量一捆木头的重量

    Example 5
    ::例5

    Choose the best unit of measure: flour for a cake.
    ::选择最好的计量单位:蛋糕面粉。

    Measure the capacity of flour for a cake using cups.

    ::用杯子测量蛋糕面粉的容量。

    Review
    ::回顾

    Choose the best unit of measure for each item below.
    ::选择以下每个项目的最佳计量单位。

    1. The weight of a dog
      ::狗的体重
    2. The weight of a camper
      ::野营车的重量,
    3. Soda in a can
      ::在一个罐子里的苏打水
    4. Two Elephants
      ::两种大象
    5. A television set
      ::电视机
    6. The volume of a baby bottle
      ::婴儿瓶的体积
    7. A jug of milk
      ::一壶牛奶
    8. An automobile
      ::汽车汽车
    9. The water in a pool
      ::水池中的水
    10. A pile of pennies
      ::一堆零钱
    11. A pallet of wood pellets
      ::木质颗粒的托盘
    12. A rhinoceros
      ::犀牛
    13. A boat
      ::一艘船
    14. An apple
      ::一个苹果
    15. Water in an eye dropper
      ::水在眼水滴眼水中

    Review (Answers) 
    ::回顾(答复)