新东方-柯林斯雅思备考词典

powerIELTS重点词汇

英 [paʊə]

[ADJ, NOUN, VERB]

词汇频率：

ADJ. 形容词

1. 电动的
Power tools are operated by electricity.
双语例句
例：
large power tools, such as chainsaws.
大型电动工具，如链锯。

NOUN. 名词

powers
1. [U 不可数名词] 权力
If someone has power, they have a lot of control over people and activities.
近义词
influence , control , command
双语例句
例：
In a democracy, power must be divided.
在民主政体中，权力必须被分散。
例：
a political power struggle between the Liberals and National Party.
一场自由党与国家党之间的政治权利斗争。
2. [U 不可数名词] 能力
Your power to do something is your ability to do it.
双语例句
例：
Human societies have the power to solve the problems confronting them.
人类社会有能力解决他们面临的问题。
例：
Fathers have the power to dominate children and young people.
父辈们有控制孩子们和年轻人的能力。
3. [U 不可数名词] 能力范围
If it is in or within your power to do something, you are able to do it or you have the resources to deal with it.
双语例句
例：
Your debt situation is only temporary, and it is within your power to resolve it.
你的债务状况只是暂时的，你有能力解决好。
4. [U 不可数名词] （法律赋予的）权力
If someone in authority has the power to do something, they have the legal right to do it.
双语例句
例：
The police have the power of arrest.
警察有逮捕权。
5. [U 不可数名词] 政权
If people take power or come to power, they take charge of a country's affairs. If a group of people are in power, they are in charge of a country's affairs.
双语例句
例：
Idi Amin came into power several years later.
伊迪·阿明几年后执掌了政权。
例：
He first assumed power in 1970.
他于1970年首次执掌了政权。
6. [C 可数名词] 强国
You can use power to refer to a country that is very rich or important, or has strong military forces.
双语例句
例：
the emergence of the new major economic power, Japan.
新兴重要经济强国日本的崛起。
7. [U 不可数名词] 动力
The power of something is the ability that it has to move or affect things.
双语例句
例：
The vehicle had better power, better tyres, and better brakes.
这种车辆的动力、轮胎和刹车都更好。
例：
massive computing power.
强大的计算能力。
8. [U 不可数名词] （尤指电）能量
Power is energy, especially electricity, that is obtained in large quantities from a fuel source and used to operate lights, heating, and machinery.
近义词
energy
双语例句
例：
Nuclear power is cleaner than coal.
核能比煤更清洁。
例：
Power has been restored to most parts that were hit last night by high winds.
昨夜受到强风袭击的大部分地区已经恢复了供电。
例：
Solar power is an example of a renewable source of energy.
太阳能是一种典型的再生能源。
9. [SING 单数型名词] 次方
In mathematics, power is used in expressions such as 2 to the power of 4 or 2 to the 4th power to indicate that 2 must be multiplied by itself 4 times. This is written in numbers as 2⁴, or 2 x 2 x 2 x 2, which equals 16.
双语例句
例：
Any number to the power of nought is equal to one.
任何一位数的零次方等于一。
例：
A trillion is 10 raised to the 12th power.
一万亿等于10的12次方。

PHRASAL VERB. 短语动词

power up
1. [PHRASAL 短语] 将…接通电源
When you power up something such as a computer or a machine, you connect it to a power supply and switch it on.
近义词
switch on
双语例句
例：
Simply power up your laptop and continue work.
只要把你的手提电脑接通电源就能继续工作。

VERB. 动词

powers , powering , powered
1. [T 及物动词] 为…提供动力
The device or fuel that powers a machine provides the energy that the machine needs in order to work.
近义词
operate
双语例句
例：
The 'flywheel' battery, it is said, could power an electric car for 600 miles on a single charge.
据说，“飞轮”电池每充电一次可驱动一辆电动汽车行驶600英里。
例：
Vehicles can be powered by hydrogen and batteries.
机动车可由氢和电池提供动力。