电力英语水平考试题库(第二版)补齐短文

补全短文

1 The function of

power transmission/power

networks/step-down substations and connected transmission

equipment/transmission at high

voltage/power network operation

2 In ( ) such as U.S.A

some advanced countries/great advantages on economy and environmental

protection/good homogenization of distribution/whole process management is strengthened

3 Circuit breakers are automatically

to control electrical power networks/to switch the current which can be from a few amperes/to perform any switching operation after long periods/of the highest importance for high reliability/of the circuit breaker

4，Fuel cells are devices that

there is no storage capacity in a fUel

cell/further development is under way/as they are being developed there have been some applications/many cells are operated in series to obtain voltages/supply alternating current from fuel cells

5 Many large cities are anything

there is still something that can be

useful/there is no time to be lost/it can be put to use again/more and more machines are designed for this purpose/building beautifUl cities out of garbage is only a dream

6,The weather in winter

They can sleep for a long time/We call this kind of sleep in wintertime

“hibernation/Hibernating animals don’t need to eat much because they don’t move/So they don5t need to worry about bad weather and other dangerous animal/As it gets warmer and warmer in spring, the sleeping animals begin to wake up and look

around for food

7,The body that is

It circles the Earth and is therefore know as a satellite of the Earth/A satellite stays in orbit because the planet gravitational force keeps pulling it into a circle/The bigger and heavier a body is, the greater is its force of gravity/To get out into space we have to overcome the Earths gravitational pull/Artificial satellite can be used for various purpose

8，The secondary equipments

the equipments that provide protecting, monitoring/the equipments that send the command signal/current values in secondary system/5 A rated current of the current transformer secondary winding/50V rated voltage of PT secondary side

9,A sudden change in the configuration

by the operation of a circuit

breaker/determine the insulation requirements of transmission line/the cost of transmission and line failure rat/at both opening and closing of circuit breakers/by means of circuit breaker dosing resistor in 500kV system

10,The high voltage power transmitted from power planfs step-up

substation to step-down substatio/the power

line that transmits the power from step-down

substation/the overhead transmission

line/lightning frequently happening and

heavy raining/large spanning line section

11 ,The aim of introducing market

a wholesale market/a retail market/to agree

on the price and quantity to be traded/to

register as a market customer/to choose

electricity suppliers

12,Electric power is a most

the lack of electricity (a blackout)/its

unavailability/social disorder, and even

national tragedy/its growth rate/high electric

power consumption per capita

13,There are numerous examples

the research and development/the fake and

real items/new chemicals/the intellectual

property/physical property

14, Electrical energy is the presence

static electricity/electrical charge/electrical

energy/Alternating current/Electrical

potential

15,Many people think of

Sustainable/the best known is photovoltaic

cells/inefficient/the collected energy is used to

heat a fluid/efficient

16,Electrical energy conservation

reducing energy consumption can be

undertaken at home/making use of

alternative clean energy sources

/contributing to climate change/turning the

thermostat up in the summer and down in

the winter/looking for other opportunities for

electrical energy conservation in the home

17,Advanced Distribution Automation

The electrical power grid/distribution

systems/at lower voltages/to control smaller

entities/for a number of reasons

18,Solar energy is lauded

like satellites in Earth orbit/buildings and

futuristic cars/such as a battery/to collect the

sun's energy/United States

19, The American idea of

from the very beginning/how much items

cost/have paid for/after the sale/The

customer service representative

20,The necessity of reliable

developing countries/there are more

people/renewable energy systems in

particula/highly reliable/For this reason

21, “Look it up in the dictionary

But it was not until 1604 that a book of

uncommon English words appeared/Each

time, it has been updated/Dictionaries that

list all kinds of words are known as general

dictionaries/General dictionaries are not the

only kind/Thus there are many kinds of

special dictionarie

22,temperature,pressure,specific

Parameters of the medium/the rise in

temperature/external forces/heat

transfer/internal energy

23,according to the mode of energy

Nuclear,wind,solar/supplies power to

users/supplies steam to the user/fuel supply

and ash disposal/newly scheduled power

24,the most important pumps

It must be located/motor frequency/three

sets/two of them/it pressurizes and