17. Viet Nam may face a power ______________ from April due to tight coal supplies.
A. fuel B. shortage C. slogan D. energy
18. Wind power is among the earliest ______________ sources of energy used by humans. A. alternative B. polluted C. harmful D. exhausted
19. Nobody can predict exactly when supplies of fossil fuels will ______________. However, we all know the quantity is getting low.
A. finish B. lack C. use up D. run out
20. Biogas can be used to ______________ natural gas in cooking, heating, or electrical generation. A. use up B. replace C. pollute D. install
21. The white puppy is Yens, and the black one is ______________.
A. my B. I C. mine D. of mine
22. Ones carbon ______________ is a measurement of the amount of carbon dioxide that their daily activities produce.
A. footprint B. energy C. effect D. amount
23. My brother and I often go to the sport centre ______________ foot.
A. at B. in C. by D. on
24. We will cut down in the use of natural gas because it is ______________ and harmful to the environment. A. available B. abundant C. plenty D. limited
25. Hydro power is ______________ because dams cannot be built in certain areas.
A. plentiful B. enough C. limited D. unlimited
26. ______________ source of energy is the source that cant be replaced after use.
A. Effective B. Non-renewable C. Renewable D. Natural
27. Which of die following is a renewable source of energy?
A. oil B. coal C. hydro D. gas
28. We hope that in die future driverless cars ______________ cheap so that many people can afford them.
A. will B. will be C. is D. be
29. We should use vehicles or kinds of energy that are ______________ to make the world greener as soon as possible.
A. environmentally friendly B. environment friendly C. environmentally friendship D. environmental friendly
30. This is my sisters hat, and those shoes are ______________, too.
A. her B. hers C. our D. their
31. If we continue ______________ electricity, we will have to pay a lot next month.
A. turning on B. widened C. wasting D. increasing
32. We should put ______________ on the rooftop for the heating and hot water. A. equipment B. cracks C. solar energy D. solar panels
33. Most people think that electricity, gas and water are ______________.
A. necessities B. appliances C. sales D. consumers
34. Nuclear energy is ______________, but it is too dangerous because it can cause cancers and other fatal diseases.
A. renewable B. non-renewable C. natural resource D. fossil fuel
35. We believe that Virgin Hyperloop can travel ______________ around l000kph.
A. with B. at C. in D. on