1、Fuel cell engines (燃料电池发动机) are two to three times more efficient than combustion engines, meaning that much greater fuel economy is available using hydrogen in a fuel cell.

A、对
B、错

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2、A fuel cell is a device that produces electricity from chemical fuels, in just one step. Unlike batteries, fuel cells don’t run down or need recharging. As long as there is a constant source of fuel and oxygen, fuel cells will continue to generate po

A、对
B、错

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3、We are more independent on electricity than we were generations ago so a failure of supply today can have major consequences.

A、错
B、对

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4、Because the fuel cell is so much more efficient that the internal combustion engine, fueling a fuel cell car can cost around the same as fueling a gasoline car.

A、对
B、错

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5、Refueling a fuel cell car is more complex and dangerous than with traditional gasoline vehicles.

A、对
B、错

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6、Solar panels, wind turbines, hydro power and geothermal energy and hydrocarbons (natural gas or coal) can all be used to produce hydrogen (a primary energy).

A、对
B、错

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7、Electrolysis can use wind, solar, geothermal, fossil fuels, biomass, nuclear, and many other energy sources.

A、对
B、错

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8、Ways to produce hydrogen fuel include producing it from nuclear power, biomass, algae, artificial photosynthesis, direct solar and coal gasification.

A、错
B、对

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9、Solar power causes no pollution at all.

A、对
B、错

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10、Seasonal variations in precipitation and long-term changes in precipitation patterns, such as droughts, have a big impact on hydropower production.

A、错
B、对

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11、Petroleum and natural gas beneath the ocean floor are also considered a form of ocean energy.

A、错
B、对

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12、Hydropower systems build pressure either by containing the water behind a dam, or within a pipe that runs down a hill. The weight of the water behind the dam or in the pipe creates pressure at the bottom. More height creates more pressure, and more p

A、错
B、对

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13、The 1973 oil embargo and 1979 energy crisis caused a reorganization of energy policies around the world and brought renewed attention to developing solar technologies.

A、错
B、对

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14、New energy vehicles are driven by the enery of ______. It is believed that they reduce our dependence on petroleum and may reduce greenhouse gas emissions.

A、sunshine
B、electricity
C、wind
D、hydrogen

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15、_____ is the first element on the periodic table, making it the lightest element. Since it is so light, it rises in the atmosphere and is therefore rarely found in its pure form.

A、Nitrogen
B、Oxygen
C、Carbon
D、Hydrogen

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16、In a flame of pure hydrogen gas, burning in air, the hydrogen reacts with oxygen to form water and releases _______.

A、little hydrogen
B、waste
C、energy
D、little oxygen

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17、 has the highest energy content of all known conventional fuels (by weight). It has almost 3 times more energy content by mass than .

A、Oxygen, fossil fuels
B、Hydrogen, oil
C、Oxygen, gasoline
D、Hydrogen, gasoline

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18、The only products that come out of a fuel cell are _______. No pollution or other dirty byproducts come out of the tailpipe of a fuel cell car.

A、energy, water vapor, and oxygen
B、electricity and hydrogen
C、electricity, heat and water
D、water and oxygen

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19、Fuel cells are versatile as they can scale up easily and meet a variety of power needs – large or small. You can ____ individual fuel cells to increase the amount of power they can provide. The taller the stack, the more power you have.

A、install
B、stack
C、divide
D、separate

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20、Pure hydrogen does not occur naturally on Earth in large quantities, and it is locked up in enormous quantities in water, hydrocarbons, and other ______. One of the challenges of using hydrogen as a fuel comes from being able to efficiently extract h

A、organic matter
B、plants
C、inorganic matter
D、fossil fuels

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21、______ is an energy form found in nature that has not been subjected to any human engineered conversion process. It is energy contained in raw fuels, and other forms of energy received as input to a system.

A、Preliminary energy
B、Principal energy
C、Premium energy
D、Primary energy

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22、In electrolysis, electricity is run through water to separate the _ and _ atoms.

A、hydrogen, oxygen
B、hydrogen, water
C、water, heat
D、hydrogen, energy

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23、Manufacturers of hydrogen generators have developed methods to use lower amounts of electricity to split water into hydrogen. Different electrolytes or catalysts are used in _______ the bonds between hydrogen and oxygen atoms that make up water.

A、loosening
B、splitting
C、strengthening
D、separating

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24、The scientists and researchers have mostly decided that using nuclear power plants that are currently online may be able to produce hydrogen fuel as a byproduct of the water that they are already using to cool the ____.

A、reactors
B、nuclear fusion
C、nuclear fission
D、nuclear tower

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25、Landfills and farms can have high concentrations of _____ which is hydrogen-rich chemical compound.

A、hydrocarbon
B、oxygen
C、methane
D、carbon dioxide

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26、Most of today’s hydrogen is produced from natural gas through a process called steam methane reforming. This is where steam and _______come together under high temperature to produce hydrogen.

A、water
B、hydrocarbons
C、oxygen
D、methane

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27、A raging river contains energy a small stream.

A、same, with
B、less, than
C、more, than
D、all possibilities above

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28、Beams of sunshine are waves of light and heat energy, radiated across 93 million miles of space to reach our earth in about ________.

A、a year
B、eight minutes
C、a second
D、an hour

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29、Sunlight reaches us by radiation. Radiation travels in electromagnetic waves consisting of ______, and when the energy waves reach an object, they can either pass through it, or be reflected, or be absorbed, depending on the material. PVs are made ou

A、neutrons
B、photons
C、electrons
D、atoms

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30、Floatovoltaics reduce the need of valuable land area, save drinking water that would otherwise be lost through __, and show a higher efficiency of solar energy conversion, as the panels are kept at a _ temperature than they would be on land.

A、precipitation, cooler
B、evaporation, hotter
C、precipitation, hotter
D、evaporation, cooler

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31、The island of Ta’u in American Samoa, small in size though, is large when it comes to renewable energy. It producing 100% of its electricity from solar power. The batteries store energy for up to ____ days on which the sun doesn’t shine.

A、thirty
B、three
C、three hundred
D、one

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32、Hydrogen fuel can be harvested from biomass. , and are three places that create much biomass.

A、farms
B、landfills
C、sewage plants
D、hospital

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33、The amount of _____ that drains into rivers and streams in a geographic area determines the amount of water available for producing hydropower.

A、precipitation
B、snowfall
C、raindrop
D、flood

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34、The volume of the water flow and the change in _____ from one point to another determine the amount of available energy in moving water.

A、water speed
B、water flow
C、fall
D、elevation

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35、Water wheels are machines that use the energy of ______ to turn a wheel. The axle of the turning wheel can then power other machines to do work.

A、flowing water
B、neither of them
C、or falling water
D、or both

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36、The Three Gorges Dam has brought benefits to Chinese people mainly in __________.

A、navigation improvement
B、tourism opportunities
C、power generation
D、flood control

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37、New nuclear is impractical in western countries because of ________.

A、oft demand for multiple reactor units
B、popular opposition
C、regulatory uncertainty
D、high costs

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38、Strong ocean currents are generated from a combination of temperature, wind, salinity, bathymetry, and the rotation of the Earth. The Sun acts as the primary driving force, causing _____________.

A、temperature differences
B、winds
C、currents
D、tides

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39、Common environmental concerns associated with marine energy developments include ____.

A、the effects of EMF and underwater noise emitted from operating marine energy devices
B、the potential effect on nearfield and farfield marine environment and processes such as sediment transport and water quality
C、the risk of marine mammals a

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1、Fuel cell engines (燃料电池发动机) are two to three times more efficient than combustion engines, meaning that much greater fuel economy is available using hydrogen in a fuel cell.

2、A fuel cell is a device that produces electricity from chemical fuels, in just one step. Unlike batteries, fuel cells don’t run down or need recharging. As long as there is a constant source of fuel and oxygen, fuel cells will continue to generate po

3、We are more independent on electricity than we were generations ago so a failure of supply today can have major consequences.

4、Because the fuel cell is so much more efficient that the internal combustion engine, fueling a fuel cell car can cost around the same as fueling a gasoline car.

5、Refueling a fuel cell car is more complex and dangerous than with traditional gasoline vehicles.

6、Solar panels, wind turbines, hydro power and geothermal energy and hydrocarbons (natural gas or coal) can all be used to produce hydrogen (a primary energy).

7、Electrolysis can use wind, solar, geothermal, fossil fuels, biomass, nuclear, and many other energy sources.

8、Ways to produce hydrogen fuel include producing it from nuclear power, biomass, algae, artificial photosynthesis, direct solar and coal gasification.

9、Solar power causes no pollution at all.

10、Seasonal variations in precipitation and long-term changes in precipitation patterns, such as droughts, have a big impact on hydropower production.

11、Petroleum and natural gas beneath the ocean floor are also considered a form of ocean energy.

12、Hydropower systems build pressure either by containing the water behind a dam, or within a pipe that runs down a hill. The weight of the water behind the dam or in the pipe creates pressure at the bottom. More height creates more pressure, and more p

13、The 1973 oil embargo and 1979 energy crisis caused a reorganization of energy policies around the world and brought renewed attention to developing solar technologies.

14、New energy vehicles are driven by the enery of ______. It is believed that they reduce our dependence on petroleum and may reduce greenhouse gas emissions.

15、_____ is the first element on the periodic table, making it the lightest element. Since it is so light, it rises in the atmosphere and is therefore rarely found in its pure form.

16、In a flame of pure hydrogen gas, burning in air, the hydrogen reacts with oxygen to form water and releases _______.

17、______ has the highest energy content of all known conventional fuels (by weight). It has almost 3 times more energy content by mass than ______.

18、The only products that come out of a fuel cell are _______. No pollution or other dirty byproducts come out of the tailpipe of a fuel cell car.

19、Fuel cells are versatile as they can scale up easily and meet a variety of power needs – large or small. You can ____ individual fuel cells to increase the amount of power they can provide. The taller the stack, the more power you have.

20、Pure hydrogen does not occur naturally on Earth in large quantities, and it is locked up in enormous quantities in water, hydrocarbons, and other ______. One of the challenges of using hydrogen as a fuel comes from being able to efficiently extract h

21、______ is an energy form found in nature that has not been subjected to any human engineered conversion process. It is energy contained in raw fuels, and other forms of energy received as input to a system.

22、In electrolysis, electricity is run through water to separate the _____ and _____ atoms.

23、Manufacturers of hydrogen generators have developed methods to use lower amounts of electricity to split water into hydrogen. Different electrolytes or catalysts are used in _______ the bonds between hydrogen and oxygen atoms that make up water.

24、The scientists and researchers have mostly decided that using nuclear power plants that are currently online may be able to produce hydrogen fuel as a byproduct of the water that they are already using to cool the ____.

25、Landfills and farms can have high concentrations of _____ which is hydrogen-rich chemical compound.

26、Most of today’s hydrogen is produced from natural gas through a process called steam methane reforming. This is where steam and _______come together under high temperature to produce hydrogen.

27、A raging river contains ____ energy ____a small stream.

28、Beams of sunshine are waves of light and heat energy, radiated across 93 million miles of space to reach our earth in about ________.

29、Sunlight reaches us by radiation. Radiation travels in electromagnetic waves consisting of ______, and when the energy waves reach an object, they can either pass through it, or be reflected, or be absorbed, depending on the material. PVs are made ou

30、Floatovoltaics reduce the need of valuable land area, save drinking water that would otherwise be lost through ______, and show a higher efficiency of solar energy conversion, as the panels are kept at a _____ temperature than they would be on land.

31、The island of Ta’u in American Samoa, small in size though, is large when it comes to renewable energy. It producing 100% of its electricity from solar power. The batteries store energy for up to ____ days on which the sun doesn’t shine.

32、Hydrogen fuel can be harvested from biomass. ______, ________ and ______ are three places that create much biomass.

33、The amount of _____ that drains into rivers and streams in a geographic area determines the amount of water available for producing hydropower.

34、The volume of the water flow and the change in _____ from one point to another determine the amount of available energy in moving water.

35、Water wheels are machines that use the energy of ______ to turn a wheel. The axle of the turning wheel can then power other machines to do work.

36、The Three Gorges Dam has brought benefits to Chinese people mainly in __________.

37、New nuclear is impractical in western countries because of ________.

38、Strong ocean currents are generated from a combination of temperature, wind, salinity, bathymetry, and the rotation of the Earth. The Sun acts as the primary driving force, causing _____________.

39、Common environmental concerns associated with marine energy developments include ____.

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17、 has the highest energy content of all known conventional fuels (by weight). It has almost 3 times more energy content by mass than .

22、In electrolysis, electricity is run through water to separate the _ and _ atoms.

27、A raging river contains energy a small stream.

30、Floatovoltaics reduce the need of valuable land area, save drinking water that would otherwise be lost through __, and show a higher efficiency of solar energy conversion, as the panels are kept at a _ temperature than they would be on land.

32、Hydrogen fuel can be harvested from biomass. , and are three places that create much biomass.