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19 tháng 3 2018

the......................of alternative sources of energy is not only plentiful but also clean and safe

A potential B,ability C effective D efficiency

25 tháng 3 2021

consistency 

foundation

alternative

11 tháng 5 2020

1. CLOSEST

Solar energy is not only plentiful and infinite but also clean and safe .

A. natural B.abundant C.scarce D..popular

2. OPPOSITE

I believe that reusing and recycling paper , plastic is one of the most effective in order to reduce pollution , and conserve natural resuorces.

A. protect B.preserve C.prohipit D.destroy

20 tháng 8 2017

Đáp án: A

4 tháng 2 2019

Đáp án: A

9 tháng 5 2017

Đáp án: A

22 tháng 4 2018

Đáp án: C

9 tháng 5 2018

Đáp án: D

14 tháng 1 2022

1. Solar energy can be used in remote areas where it is too ____expensive___ to extend the electricity  power. (EXPENSE) 

2. I think I’d prefer something a little less ___energetic____. (ENERGY) 

3. The potential of ____alternative___ sources of energy is not only plentiful but also clean and safe.  (ALTERNATE) 

4. ____Renewable___ resources are a very important part of saving energy and the environment. (RENEW)

5. In order to save energy, we need to find other clean, and ___effective____ sources of energy. (EFFECT) 

6. The weather is very ____changeable___ at this time of year. (CHANGE) 

7. The energy ___consumption____ will be reduced in the future. (CONSUME) 

8. We will solve the problem of energy ____shortage___ by using solar energy. (SHORT)  

giúp mik với T^T II. Read the following passage and choose the correct answer. The search for alternative sources of energy has led in various directions. Many communities are burning garbage and other biological waste products to produce electricity. Converting waste products to gases or oil is also an efficient way to dispose of waste. Experimental work is being done to derive synthetic fuels from coal, oil shale and coal tars. But to date, that process has proven expensive. Other...
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giúp mik với T^T

II. Read the following passage and choose the correct answer.
The search for alternative sources of energy has led in various directions. Many
communities are burning garbage and other biological waste products to produce
electricity. Converting waste products to gases or oil is also an efficient way to dispose of
waste.
Experimental work is being done to derive synthetic fuels from coal, oil shale and coal tars.
But to date, that process has proven expensive. Other experiments are underway to
harness - power with giant windmills. Geothermal power, heat from the earth, is also being
tested.
Some experts expect utility companies to revive hydroelectric power derived from streams
and rivers. Fifty years ago hydroelectric power provided one third of the electricity used in
the United States, but today it supplies only four percent. The oceans are another potential
source of energy. Scientists are studying ways to convert the energy of ocean currents,
tides, and waves to electricity. Experiments are also underway to make use of the
temperature differences in ocean water to produce energy.
1. Which is the best title of the passage?
A. Efficient Ways of Disposing of Waste B. The Use of Water Productions for
Energy
C. The Search for Alternative Sources of Energy D. New Discoveries in Geothermal Power
2. In the second paragraph, the phrase “synthetic fuels” could best be replaced by which of
the following?
A. Biological fuels B. Low burning fuels C. Fast burning fuels D. Artificial
made fuels
3. Which of the following is NOT mentioned in the passage as an alternative source of
energy?
A. Burning of garbage B. Geothermal power C. Synthetic fuels
D. Electricity
4. According to the author, the impracticability of using coal, oil shale and coal tars as
sources of energy is due to ___________ .
A. their being time consuming B. their being money consuming

C. the scarcity of sources D. the lack of technology their being
money consuming
5. The word “it” in the last paragrph refers to ____.
A. alternative source B. the United States C. hydroelectric power D. Electricity
6. What can be inferred from the last paragraph?
A. Hydroelectric power will be the main source of energy
B. Synthetic fuels will be the principal source of alternative energy
C. Alternative energy will come from a variety of sources
D. All alterenative production of energy will be delivered from water.

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