B1 verb 中性 #28 最常用 2分钟阅读

multiply

/ˈmʌltəplaɪ/

To increase a number or quantity by a significant factor, often by performing mathematical multiplication. It can also mean to increase or cause to increase greatly in number or quantity.

'Multiply' means to increase significantly in number or quantity, either through mathematical operation or rapid growth.

30秒词汇

  • To increase greatly in number or quantity.
  • Used in math for multiplication (e.g., 3 x 4 = 12).
  • Describes rapid growth or spread.

Summary

'Multiply' means to increase significantly in number or quantity, either through mathematical operation or rapid growth.

  • To increase greatly in number or quantity.
  • Used in math for multiplication (e.g., 3 x 4 = 12).
  • Describes rapid growth or spread.

Think of rapid growth

When you hear 'multiply', imagine something getting numerous very quickly, like rabbits in a field or stars in the sky.

Distinguish math vs. general use

Be aware if 'multiply' refers to the specific mathematical operation or a general, rapid increase in quantity.

Population growth concepts

The concept of multiplying is fundamental to understanding population dynamics, both in biology and social sciences.

例句

4 / 4
1

If you multiply 5 by 6, you get 30.

2

The bacteria were able to multiply rapidly in the warm environment.

3

After the success of the first store, they decided to multiply their efforts and open more branches.

4

The problems seemed to multiply after the initial setback.

词族

名词
multiplication, multiple
动词
multiply
形容词
multiple, multiplicative

记忆技巧

Imagine a mother rabbit having many babies, and then those babies having more babies – the number grows very fast, like multiplying!

**Overview**

The word 'multiply' primarily refers to the mathematical operation of multiplying, where one number is added to itself a specified number of times. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times (3 + 3 + 3 + 3), which equals 12. Beyond mathematics, 'multiply' is used more broadly to describe a rapid increase in the number or amount of something. This can apply to populations, ideas, businesses, or even physical objects.

**Usage Patterns**

As a verb, 'multiply' can be used transitively (taking an object) or intransitively (without an object). Transitively, it often appears with 'by' to indicate the factor of increase or the operation being performed. For example, “The bacteria multiplied by ten overnight.” Intransitively, it signifies a general increase. For instance, “The rabbits began to multiply in the fields.” It's commonly used in contexts discussing growth, expansion, and reproduction.

**Common Contexts**

You'll frequently encounter 'multiply' in educational settings, especially in math classes. In science, it's used to describe population growth (e.g., bacteria, cells) or the spread of something. In business, it can refer to expanding operations or increasing profits. In everyday language, it might describe how quickly something has become more numerous, like “The opportunities seemed to multiply after she got the promotion.”

**Similar Words Comparison**:

  • Increase: A more general term for becoming or making larger. 'Multiply' implies a more significant or rapid increase, often through a process of reproduction or repeated addition.
  • Grow: Similar to 'increase', but often suggests a natural, organic development. 'Multiply' can be more about a rapid surge in numbers.
  • Expand: Focuses on increasing in size, scope, or extent. While related to an increase in quantity, 'expand' doesn't always mean a rise in the number of individual units.
  • Reproduce: Specifically relates to the biological process of creating offspring, leading to an increase in population. 'Multiply' is a broader term that can encompass reproduction but also other forms of numerical growth.

使用说明

In mathematics, 'multiply' refers to a specific operation (e.g., 'multiply the numbers'). In general contexts, it implies a rapid increase in quantity ('opportunities multiplied'). The context usually makes the meaning clear. Be mindful of the distinction between the precise mathematical term and its broader figurative use.

常见错误

Avoid using 'multiply' when a simple 'increase' or 'add' would suffice, as 'multiply' suggests a significant or rapid rise. Also, ensure correct prepositions are used, like 'multiply by X' for the mathematical operation.

记忆技巧

Imagine a mother rabbit having many babies, and then those babies having more babies – the number grows very fast, like multiplying!

词源

The word 'multiply' comes from the Latin 'multiplicare', meaning 'to make many'. It's derived from 'multus' (many) and 'plicare' (to fold).

文化背景

The concept of multiplication is fundamental to economic growth, population studies, and understanding exponential trends, which are significant in many societal discussions.

例句

1

If you multiply 5 by 6, you get 30.

academic
2

The bacteria were able to multiply rapidly in the warm environment.

scientific
3

After the success of the first store, they decided to multiply their efforts and open more branches.

business
4

The problems seemed to multiply after the initial setback.

everyday

词族

名词
multiplication, multiple
动词
multiply
形容词
multiple, multiplicative

常见搭配

multiply by
multiply rapidly
multiply out

常用短语

multiply choice

multiply by ten

multiply the possibilities

容易混淆的词

multiply vs increase

'Increase' is a general term for becoming or making larger. 'Multiply' specifically implies a significant, often rapid, rise in number or quantity, frequently through a process akin to repeated addition or reproduction.

multiply vs divide

'Divide' is the inverse mathematical operation of multiplication, meaning to split into equal parts or groups. 'Multiply' means to combine groups of equal size to find a total.

语法模式

Subject + multiply + by + quantity (e.g., The price multiplied by two.) Subject + multiply (intransitive) (e.g., The rabbits multiplied.) Multiply + object + by + quantity (imperative) (e.g., Multiply your score by 10.)

Think of rapid growth

When you hear 'multiply', imagine something getting numerous very quickly, like rabbits in a field or stars in the sky.

Distinguish math vs. general use

Be aware if 'multiply' refers to the specific mathematical operation or a general, rapid increase in quantity.

Population growth concepts

The concept of multiplying is fundamental to understanding population dynamics, both in biology and social sciences.

自我测试

fill blank

Choose the best word to complete the sentence.

The number of infected people began to ___ rapidly.

正确! 不太对。 正确答案: b

'Multiply' fits the context of a rapid increase in number.

multiple choice

Select the sentence that correctly uses 'multiply'.

Which sentence uses 'multiply' correctly?

正确! 不太对。 正确答案: b

Option B correctly uses 'multiply' in a mathematical context for scaling a recipe. Option A is incorrect as multiplying ingredients would increase servings. Option C is a valid sentence but doesn't demonstrate the core meaning as well as B. Option D makes no sense.

sentence building

Arrange the words to form a grammatically correct sentence.

using / numbers / quickly / the / multiply / can

正确! 不太对。 正确答案: a

This sentence correctly uses 'multiply' intransitively to describe how numbers can increase rapidly.

得分: /3

常见问题

4 个问题

'Add' means to combine numbers to find their total sum. 'Multiply' is a specific type of addition where one number is added to itself a certain number of times.

Yes, 'multiply' is often used figuratively to describe a rapid increase in the number or amount of something abstract, like opportunities, problems, or ideas.

While often used for positive growth, it can describe any rapid increase in quantity, which could include negative things like problems or debt.

The most common symbol for multiplication is the 'x' sign (e.g., 5 x 6). An asterisk () is often used in computing and algebra (e.g., 5 6).

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