I. Give the correct from of the word given to complete the sentence.

I. Give the correct from of the word given to complete the sentence.

I. Give the correct from of the word given to complete the sentence.

-Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be an ............. source of energy in the near future (alter) -It's a clean source of energy . Sailboats couldn't move without this ............. (powerful) -Limit car trips by relying on biking , walking public ............. (transport) -Energy is used to ............ a lot electrical thing (product ) -I don't think so . The solar penels are becoming ............ and easy to install (cheap)

Help!!!

I. Give the correct from of the word given to complete the sentence.

-Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be an ............. source of energy in the near future (alter) -It's a clean source of energy . Sailboats couldn't move without this ............. (powerful) -Limit car trips by relying on biking , walking public ............. (transport) -Energy is used to ............ a lot electrical thing (product ) -I don't think so . The solar penels are becoming ............ and easy to install (cheap)

Giúp với!!!

I. Give the correct from of the word given to complete the sentence.

-Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be an ............. source of energy in the near future (alter) -It's a clean source of energy . Sailboats couldn't move without this ............. (powerful) -Limit car trips by relying on biking , walking public ............. (transport) -Energy is used to ............ a lot electrical thing (product ) -I don't think so . The solar penels are becoming ............ and easy to install (cheap)

Ai làm đc giúp mình, mình tặng người đó 5Sp nha!

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.

II. Read the passage carefully and then do the tasks.
We use many different energy sources to do work for us. Energy sources are classified into two groups -
renewable and nonrenewable.
Non-renewable energy sources are those that take millions of years to form and will run out some day. It is
energy that comes from fossil fuels such as coal, crude oil, and natural gas. Fossil fuels are mainly made up of
carbon and were formed millions of years ago. The chemical reaction which takes place when we burn fossil
fuels releases carbon compounds such as carbon monoxide and carbon dioxide into the air. Carbon dioxide is
one of the green house gases which is contributing to global warming and air pollution.
On the other hand, renewable energy sources will never run out, are better for the environment and do not
cause pollution. Renewable energy is often called green energy because it is a natural energy, always available
and does not have to be formed like nonrenewable energy. The green energy is always there. For example, the
Sun consistently shines, water is abundant, and the winds blow throughout the year. The five types
include solar, energy from the Sun; geothermal, energy from heat within the Earth; hydroelectric, energy from
moving water; biomass, energy from dead plants and microorganisms and finally, energy from the wind.
A. Decide if the flowing statements are True (T) or False (F)
1. Non –renewable energy is a source of energy that will eventually run out.
2. Renewable energy comes from natural sources, like sunlight, wind, water, and heat of the Earth.
3. Burning fossil fuels is harmful to the environment.
4. Renewable resources are better for the environment, but they are limited in supply.
5. carbon is the main element in fossil fuels.
6. Wind is the primary source of hydroelectricity energy.
B. Answer the questions.
1. What are fossil fuels? ……………………………………….
2. When were fossil fuels formed? ……………………………………..
3. Do carbon dioxide emissions causes climate change on Earth?.............................
4. How many types of renewable energy sources are there? What are they?
…………………………………………….

5. Are renewable sources bad for the environment?…………………………………….
6. Why is renewable energy called green energy?......................................................

The search (26) _______ alternative sources of energy has led in various directions. Many communi- ties are burning garbage (27) _______other biological waste products to produce electricity. Converting waste products to gases or oil (28) _______ also an efficient way to dispose of waste.

Experimental work is being done to derive synthetic fuels (29) _______ coal, oil, shale and coal tars. However that process (30) _______ proved to be expensive. Other experiments that are underway to harness power with giant windmills are also (31) _______ tested.

Some experts expect utility companies to receive hydroelectric power (32) _______ from streams and rivers. Fifty years (33) _______ 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 sources of energy. Scientists are studying ways to convert the energy of ocean currents, tides and waves (34) _______ electricity. Experiments are also underway to make use (35) _______ temperature differences in ocean water to produce energy.

1. Tidal energy is renewable, ............................ and clean.     (plenty)

2. Wind will be used as an ............................ friendly sources of energy.  (environment)

3. There are many ways will be used to solve the problem of ....................         (pollute)

4. Solar power can be used to ............................ or cool our houses.        (hot)

5. ............................, fossil fuels are harmful to the environment.    (fortunate)

6. We couldn’t see the airplane because it ......................... behind the cloud.(appear)

7. I don’t think it will come true soon; however, your idea is really ...............(imagine)

8. He feels very tired after two continuous nights of .........................                  (sleep