B2 adjective 正式

troposphere

/ˌtroʊ.pə.sfɪər/

The troposphere is the lowest layer of the Earth's atmosphere, extending from the surface to an average altitude of about 12 kilometers. It is the region where nearly all weather conditions, such as clouds and precipitation, occur and where most of the atmosphere's mass is concentrated.

例句

3 / 5
1

Most clouds that you see in the sky are located within the troposphere.

The majority of clouds visible in the sky are found in the lowest layer of the atmosphere.

2

Environmental regulations aim to reduce the concentration of pollutants released into the troposphere.

Laws regarding the environment seek to lower the amount of harmful substances sent into the Earth's first atmospheric layer.

3

It's crazy to think that the troposphere is where all our rain and snow actually come from.

It is amazing to realize that the first layer of the atmosphere is the source of all precipitation.

词族

名词
troposphere
副词
tropospherically
形容词
tropospheric
相关
tropopause
💡

记忆技巧

Think of 'Tropo-' as 'Tropical weather'. The 'tropo'sphere is where all the 'tropical' storms and weather changes happen.

快速测验

Commercial airplanes usually fly near the top of the ____ to avoid turbulent weather found at lower altitudes.

正确!

正确答案是: troposphere

例句

1

Most clouds that you see in the sky are located within the troposphere.

everyday

The majority of clouds visible in the sky are found in the lowest layer of the atmosphere.

2

Environmental regulations aim to reduce the concentration of pollutants released into the troposphere.

formal

Laws regarding the environment seek to lower the amount of harmful substances sent into the Earth's first atmospheric layer.

3

It's crazy to think that the troposphere is where all our rain and snow actually come from.

informal

It is amazing to realize that the first layer of the atmosphere is the source of all precipitation.

4

The boundary between the troposphere and the stratosphere is known as the tropopause.

academic

The dividing line between the first and second layers of the atmosphere is called the tropopause.

5

The aviation industry monitors wind currents in the troposphere to optimize flight paths and save fuel.

business

Airline companies track air movements in the lower atmosphere to improve routes and reduce costs.

词族

名词
troposphere
副词
tropospherically
形容词
tropospheric
相关
tropopause

常见搭配

lower troposphere the part of the troposphere closest to the ground
upper troposphere the highest part of the troposphere near the stratosphere
tropospheric ozone ozone found in the lowest layer of the atmosphere, often as a pollutant
temperature in the troposphere the heat levels measured within the first atmospheric layer
across the troposphere moving through or spanning the entirety of the lowest layer

常用短语

within the troposphere

inside the Earth's lowest atmospheric layer

tropospheric heating

the warming of the lowest part of the atmosphere

thickness of the troposphere

the vertical measurement of the Earth's first layer

容易混淆的词

troposphere vs stratosphere

The stratosphere is the layer above the troposphere; it is where the ozone layer is located and is generally calmer.

📝

使用说明

The word is almost exclusively used in scientific, environmental, or meteorological contexts. In general conversation, people usually just say 'the air' or 'the atmosphere'.

⚠️

常见错误

Learners often confuse the troposphere with the stratosphere or think it refers to the entire atmosphere rather than just the lowest layer.

💡

记忆技巧

Think of 'Tropo-' as 'Tropical weather'. The 'tropo'sphere is where all the 'tropical' storms and weather changes happen.

📖

词源

Derived from the Greek 'tropos' (meaning 'turn' or 'change') and 'sphaira' (meaning 'sphere'), referring to the turbulent air and weather changes in this layer.

语法模式

Used as a singular countable noun. Almost always preceded by the definite article 'the'. Often functions as a noun adjunct in terms like 'troposphere temperature'.
🌍

文化背景

While not tied to a specific culture, it is a standard term in global environmental science and climate change discussions.

快速测验

Commercial airplanes usually fly near the top of the ____ to avoid turbulent weather found at lower altitudes.

正确!

正确答案是: troposphere

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