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【单选题】
The British invest more money in wave energy research than other countries, but do they really believe it could be an efficient way to produce energy?
A.
economical and useful
B.
new and unusual
C.
wasteful and powerful
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Cause: Effect: Alcohol is added to create biofuels.
A.
Vegetable oil alone does not work as a fuel.
B.
Biodiesel can be used in diesel trucks.
C.
Aigae doesn't create a greenhouse gas when burned.
【单选题】Some energy campaigners believe we should look for other sources of energy besides fracking because it might cause pollution.
A.
installing wind turbines
B.
extracting gas from rock
C.
depending on solar power
【单选题】Cause: Effect:Companies convert engines of vehicle fleets and reduce emissions.
A.
Biodiesel may not need more financial support.
B.
Algae doesn't create a greenhouse gas when burned.
C.
Biodiesel can be used in diesel trucks.
【单选题】Cause: Classroom groups discuss alternative energy sources. Effect:
A.
Students recommend an energy investment.
B.
The group decides sun-based energy is too expensive.
C.
Shelley's strong evidence convinces the group.
【单选题】Cause: Companies make big investments in biodiesel. Effect:
A.
Shelley's strong evidence convinces the group.
B.
Biodiesel may not need more financial support
C.
biodiesel can be used in diesel trucks
【单选题】Cause: Effect: Small farms can harvest enough algae to fuel the world.
A.
Vegetable oil alone does not work as a fuel
B.
One acre of water can produce 200 tons of algae.
C.
Algae doesn't create a greenhouse gas when burned.
【简答题】conflicted 2. priority 3. intermittent 4. potentially 5. convert 6. emission 7. catastrophic 8. efficient
A.
beneficial
B.
continuous
C.
wasteful
D.
preserve
E.
input
F.
clear about what to choose
G.
improbable
H.
unimportant thing
【单选题】Cause: Plants pull carbon dioxide from the air and return only the same amount of carbon dioxide that they took. Effect:
A.
Biodiesel can be used in diesel trucks
B.
Algae doesn't create a greenhouse gas when burned.
C.
One acre of water can produce 200 tons of algae.
【单选题】Cause: Solar panels cost $10,000 per house Effect:
A.
Biodiesel may not need more financial support.
B.
Shelley's strong evidence convinces the group.
C.
The group decides sun-based energy is too expensive.
【单选题】Cause: Effect: The group will recommend alge as an energy investment.
A.
Shelley's strong evidence convinces the group.
B.
Students recommend an energy investment.
C.
One acre of water can produce 200 tons of algae.