Our environment is in trouble. People and industries are polluting the air, rivers, lakes and seas. There are many things you can do to help the environment. Here are a few.

Firstly, the burning of petroleum is one of the biggest sources of carbon monoxide (CO) that causes global warming. CO thins the ozone layer, which protects us from the sun’s ray. So try to walk, cycle or use public transportation.

       Secondly, the biggest use of home energy is for heating and cooling homes. It not only consumes much energy but also costs a lot of money. So turn the heat down, especially at night. Replace ordinary light bulbs with energy-saving light bulbs, which use less energy.

Finally, showers use a lot of water. Buying a special “low-flow” shower head or taking shorter showers can cut this use in half.

25.We can do nothing to help the environment.

26.Carbon monoxide comes from burning of petroleum.

27. The more petroleum we burn, the better the environment is.

28. Energy is used to heat and cool homes.

29. The passage mainly discusses:

a. The source of CO 

b. Energy-saving bulbs

c. The ozone layer

d. Some ways to protect the environment

30. The word “ordinary” in line 6 is closest in meaning to the word:

a. modern b. cheap c. effective d. normal

Fill in each blank with an appropriate word.

1-..... energy resources include coal, oil, natural gas and uranium.

2-..... energy creates clean, renewable power from the sun.

3-We need to look for ways to reduce our carbon ..... .

4-Coal is a ..... fuel that was formed millions of years ago.

5-Renewable energy sources will never ..... out because they are easily replenished.

6-Burning fossil fuels emits a lot of pollutants that are ..... to the environment.

7-Solar ..... are fitted to building and turn the sun's ray into energy.

8-Some countries are ..... coal with natural gas because natural gas is less polluting than coal.

Complete the following passage by choosing the best option, A, B, C or D.

   Energy is very important in our modern life. People use energy (5)__________ transportation, cooking, heating and cooling rooms, manufacturing, lighting, and entertainment. (6) __________ energy nowadays comes from fossil fuels – petroleum, coal, and natural gas. (7) __________, burning fossil fuels causes pollution. Also, if we don’t find new kinds of energy, we will (8) __________ all the fossil fuels in the near future.

Question 7:

A Because

B. Moreover

C. Therefore

D. However

Complete the following passage by choosing the best option, A, B, C or D.

   Energy is very important in our modern life. People use energy (5)__________ transportation, cooking, heating and cooling rooms, manufacturing, lighting, and entertainment. (6) __________ energy nowadays comes from fossil fuels – petroleum, coal, and natural gas. (7) __________, burning fossil fuels causes pollution. Also, if we don’t find new kinds of energy, we will (8) __________ all the fossil fuels in the near future.

Question 6:

A. Most

B. Mostly

C. almost

D. Utmost

Complete the following passage by choosing the best option, A, B, C or D.

   Energy is very important in our modern life. People use energy (5)__________ transportation, cooking, heating and cooling rooms, manufacturing, lighting, and entertainment. (6) __________ energy nowadays comes from fossil fuels – petroleum, coal, and natural gas. (7) __________, burning fossil fuels causes pollution. Also, if we don’t find new kinds of energy, we will (8) __________ all the fossil fuels in the near future.

Question 8:

A. use up

B. run on 

C. take over

D. cut off

Complete the following passage by choosing the best option, A, B, C or D.

   Energy is very important in our modern life. People use energy (5)__________ transportation, cooking, heating and cooling rooms, manufacturing, lighting, and entertainment. (6) __________ energy nowadays comes from fossil fuels – petroleum, coal, and natural gas. (7) __________, burning fossil fuels causes pollution. Also, if we don’t find new kinds of energy, we will (8) __________ all the fossil fuels in the near future.

Question 5:

A. in

B. for

C. at

D. by